Top 7 High Quality Mini Exercise Bike Suppliers
Top 7 High Quality Mini Exercise Bike Suppliers

 Health, fashion, new concept designed fitness bike, the most important feature is the hands and feet power, speed up to 40km/h; Do more ways, good fitness effect. When riding this bicycle, the hands and feet can work on the bicycle drive at the same time, or they can work on the bicycle drive by hand or foot alone. Use the foot to pull foot to pedal straight line type, the hand pulls to swing a rod to swing type to do work way, raised the bicycle already travel speed, exercised leg ministry muscle, arm ministry muscle again. It has obtained a number of national patents, which are suitable for the middle-aged and elderly people to use as a means of transportation for walking and fitness, and also suitable for the young people to use for tourism and entertainment. The development of mini exercise bikeMini exercise bike is a traditional industry, has a history of more than 100 years, due to environmental and traffic problems, the mini exercise bike has once again become the favorite traffic and fitness tools of the countries of the world, especially developed countries.  Mini exercise bike industry in the world's centre of gravity is from traditional walking type vehicles to sports, mountain, casual, in the United States, Europe, Japan and other developed countries, the mini exercise bike is a more common sports, fitness, leisure and entertainment products. There is a huge demand for mini exercise bike around the world every year. According to CYCLEPRESS of Japan, the global demand for mini exercise bike remains at the level of 106 million units, and the annual turnover of bicycles is about 5 billion us dollars. Mini exercise bike fitness has become fashionable. Exercise bikes have evolved from transportation tool to fitness tool. It is very common to buy a mini exercise bike of several thousand yuan. Now, a bicycle of twenty thousand yuan can sell seven or eight bikes every month. Top 7 high quality mini exercise bike suppliersEn.china.cnEn.china.cn is one of the best wholesale websites in China. Any kind of mini exercise bike can be found on en.china.cn. It's a great way to start your wholesale business. You can get these at here:1. Quality products. Every supplier has the required certificate, which you can check at any time. So the wholesalers you meet here are qualified and reliable. Years of trading have proven that the quality of their products is safe and reliable.2. Excellent service. When you use this platform, no matter before, during or after the purchase, you can contact customer service to help you quickly solve the problem.3. Convenient payment method. En.china.cn supports A variety of payment methods, such as T/T,L/A,D/P,Western Union and so on. You can find the most convenient payment method.4. Affordable price. Many merchants have cooperated with en.china.cn for a long time, and many of them have their own factories. So their products are low in price but good in quality. If you order in large quantities, sometimes they will give you a lot of discounts. Made-in-chinaFounded in nanjing, China, Made-in-China.com is aimed at connecting Chinese buyers and suppliers. The layout of the company's website is easy to navigate. Chinese suppliers can create their own home page by creating a home page. The home page contains their company profile, introduction and product list.From this website, you can buy a variety of products covering every niche. You don't have to worry about the quality of the products, because they come from the best and famous manufacturers and manufacturers in China. Dick’s sporting goodsHeadquartered in Pittsburgh, PA, DICK'S Sporting Goods is a leading omni-channel sporting goods retailer offering an extensive assortment of authentic, high-quality sports equipment, apparel, footwear and accessories. As of May 1, 2019, the Company operated more than 720 DICK'S Sporting Goods locations across the United States, serving and inspiring athletes and outdoor enthusiasts to achieve their personal best through a blend of dedicated teammates, in-store services and unique specialty shop-in-shops dedicated to Team Sports, Athletic Apparel, Golf, Lodge/Outdoor, Fitness and Footwear. AlibabaAlibaba is located in hangzhou, China. It prides itself on being the world's leading B2B procurement portal. It has a comprehensive list of wholesale suppliers and manufacturers. People usually go to this site first when they search for something.Since its inception, alibaba has been the leading manufacturer list. So if you're looking for a website to buy wholesale products for resale, alibaba will provide you with a list of suppliers and manufacturers that will meet your needs. DHgateDHgate is a wholesale shopping website that allows bulk purchase of products. From their website, you will find competitively priced products made in China, usually MQQ is lower than other platforms.This website is a large wholesale market where different sellers can list their products. This enables you to purchase products from small business wholesale suppliers or mid-range manufacturers and manufacturers.As the best wholesale website, there are many choices, such as cosmetics, accessories, electronics, clothing, jewelry, toys and so on. They also offer special offers. EC21EC21 is one of the world's largest B2B online marketplaces, connecting millions of suppliers and buyers worldwide. Since 1997, EC21 has been dedicated to providing global trade opportunities for smes. With its leading technology and expertise in the field of international trade, it has won the recognition of the international community and the trust of the global business community.Today, EC21 has more than 2 million member companies, 7 million products, 3.5 million buyers and 3.5 million monthly visitors. And it's growing. EC21s' online marketing expertise makes it becomes a leader in search engine optimization (SEO), search engine advertising and social media marketing. Costco wholesaleCostco is a membership warehouse club, dedicated to bringing our members the best possible prices on quality brand-name merchandise. With hundreds of locations worldwide, Costco provides a wide selection of merchandise, plus the convenience of specialty departments and exclusive member services, all designed to make your shopping experience a pleasurable one. Techniques of wholesale mini exercise bike1. Choose your frame.Light, firm, flexibility is one of the goal that frame pursues, in order to achieve this goal, look at the craft of manufacturer of each frame even. Such as the design of the frame according to the strength and characteristics of the material to design, welding process is mature. These directly affect the appearance, strength and elasticity of the frame. There is more important is spray paint, good frame spray paint uniform, so that the bike is easy to maintain, not easy to rust. 2. Choose good partsSimply put, it is both light and strong, and good performance. Because of these conditions guaranteed a bicycle is easy, safe, convenient to ride. But to meet all the above conditions, you need good materials. So, bicycle parts are often a specific factor in the price of a bicycle. 3. Assembly technologyGood parts, if assembled badly, will be like a house that has not been carefully designed by the architect, nor experienced craftsmen to build, so that you live in fear of it will collapse. So, if you don't want to regret buying it, you should know this. 4. The choice of brakesThe quality of the brake is related to your safety and the safety of others, brake force and brake time is the main factor that determines the quality of the brake, so the brake performance is good, the use of light operating force is very important. In the Japanese market there is a more common roller brake, except in the rainy day can also get the same as usual satisfactory effect, the brake will not have noise, and no need to maintenance. ConclusionAfter investigation and discussion, we have listed 7 best b2b websites for wholesale mini exercise bike . If you want more information, you can follow our blog.

Dropshipping Business 664 84 12/03/19
8 Best b2b Website For Exercise Equipment Wholesaler
8 Best b2b Website For Exercise Equipment Wholesaler

The development of China's fitness equipment industry began in the late 1980s. With China's accession to the WTO and the success of Beijing's bid for the Olympic Games, the development of fitness equipment industry has provided favorable conditions and development opportunities. The continuous expansion of fitness team has brought strong business opportunities for fitness equipment manufacturers. This article will mainly talk about fitness equipment wholesale related knowledge. The market of exercise equipment in ChinaFrom January to December 2007, China's sports goods industrial enterprises achieved a cumulative industrial output value of 61,313,721 thousand yuan, an increase of 19.39% over the same period in 2006. From January to October 2008, China's sports goods industrial enterprises achieved a cumulative industrial output value of 55,906,766 yuan, an increase of 16.67% over the same period in 2007.With the rapid development of China's fitness equipment industry, some problems are emerging. In particular, in the international market, there is a lack of well-known brands and low added value of products. At the same time, compared with the international advanced level, many Chinese manufacturers are still in the stage of imitation production and lack the ability of product research and development and technological innovation. So where do you shop for affordable and high quality fitness equipment? The type of exercise equipmentFitness equipment is often divided into single function and comprehensive multi - function with training function.Single-function equipment, commonly used rowing machine, bodybuilding car, treadmill, treadmill, waist machine, AMT fitness machine, elliptical machine, bodybuilding car, treadmill, treadmill and waist machine.Comprehensive multifunctional device: generally includes chest expander, pull-up, supine press, sit-ups and other equipment functions. 8 best b2b website for exercise equipment wholesaler in ChinaAliExpressMany people confuse aliexpress with alibaba because the name and logo are similar. However, there are huge differences in quality and customer support. Aliexpress is an online retail store owned by alibaba group, however, there are some differences that can help you make important decisions.Aliexpress's retailers are independent because aliexpress does not have its own inventory or supply. They support local and international businesses by providing a sales and purchase platform. Aliexpress has two sources of materials - large suppliers and small businesses.A large supplier is a larger business that operates on a website. These large enterprises can be factories or trading companies, or they can work online. Although some factories supply their own products, trading companies have a lot of money. They use the money to buy and sell products. En.china.cnEn.China.cn is one of reliable wholesale websites of China, which was founded in 2003.En.China.cn is a popular platform supporting a number of quality suppliers. Therefore, you can get best price out there if you negotiate.Typically, En.China.cn's suppliers provide OEM and ODM services.After selecting the product, we may need to customize the packaging of the product as well as the brand of the product. We must confirm with the supplier whether we need them to provide OEM or ODM service before we can place the order. Building our brand is also important. global sourcesGlobal sources mainly provides B2B website platform and exhibition services for Chinese suppliers. At the same time, global resources is also a very famous wholesale site. Global resources has thousands of Chinese suppliers. You can wholesale any product global resource platform.The types of suppliers from global sources are manufacturers and traders. Typically, only large manufacturers and trading companies become members of Global Sources because they have to pay more for it. As a result, suppliers of global resources tend to have higher quality products. It is difficult for small manufacturers and traders to join global resource platforms and trade shows.Usually, the MOQ is determined by the product. For example, for electronics, the usual minimum order is 500 pieces or more. For special products, such as furniture, the moq is usually a 20ft container. Made-in-chinaMade-In-China is one of the biggest wholesale websites in China. It has the guarantee at the suppliers. But you should pay attention at following parts:1. Minimum order quantityThe moq is determined by the value of the product and the goods. If the value of a product is high, there is usually no minimum order. An example of this product is a large piece of machine. On the other hand, if your product is of low value, say $0.10 per unit, the moq could be 10,000 units or more.2.Method of paymentPayment terms: l/c, t/t, d/p, western union, paypal, currency exchange. I suggest you pay 30% in advance and the rest before shipment or on the bill of lading.3. Transportation methodSuppliers can provide three main modes of transportation: sea, air and express. You can choose the mode of transportation according to the weight of your products and goods. You are strongly advised to insure your goods. DHgateDHgate.com has three main types of suppliers: individuals, trading companies and small manufacturers. Many wholesalers buy products through 1688.com and sell them on DHgate. I suggest you contact the seller to purchase the sample first and then wholesale the product after you do some sample tests.Different products have different minimum orders, but the value of the product is about 50 to 800 yuan. This is acceptable to wholesalers. WholesalecentralThe wholesaler center is a business directory that has been set up in the United States to help dropshippers, suppliers, and manufacturers make connections easy. You can buy a wide variety of clothes, such as women's wear, city wear, t-shirts, socks and knitwear, plums, leggings, children's clothing and baby clothes. It is simply a B2B platform where wholesalers, exporters and importers display their goods.Therefore, only wholesale, which means there is generally a minimum order limit. You can check the details directly on the wholesaler's website. The wholesale center will check and verify each company listed on their catalog. ShopifyThe name has been around for a while and it is recognized as one of the best online shopping sites. They have a far-reaching network that helps you get what you need quickly. Not only that, it also helps manage your e-commerce store more effectively.Basic features:· review store profile· review manuals, regional, national and international performance· reach your target audience in the summer DarazDaraz is really a big e-commerce platform in Pakistan. As a leading online store, they have all kinds of consumer goods, such as dresses, fashion accessories and other goods you can imagine. Daraz follows the amazon model, which is different from normal e-commerce practices in Pakistan. With a variety of payment methods, product reliability, and a wide product range, www.daraz.pk ships are located throughout Pakistan and in over 45 locations worldwide.MaintenanceAny machine used for a long time will have certain damage, and regular maintenance is to constantly detect the operation of the machine, so as not to appear unnecessary damage! Not only is the gym fitness equipment needs regular maintenance, household equipment also regular maintenance and maintenance, and then can be used more at ease.1.Maintenance can improve the service life of fitness equipment; According to statistics, have been regular maintenance of fitness equipment than never maintained equipment average life extension of 3 years;2. Maintenance can ensure the normal operation of fitness equipment and reduce the failure rate; According to statistics, the failure of fitness equipment that has not been maintained 80% can be found in time before the failure, such as early detection and treatment can avoid the failure or expansion;3.The maintenance costs and spare parts of the equipment manufacturer are expensive. The maintenance can improve the service life of fitness equipment and devices, thus reducing the maintenance times and saving the maintenance cost.4. Maintenance can save electricity; According to statistics, the maintenance of the equipment consumption is higher 20%;5.Fitness equipment maintenance reduces blindness and passivity, improves pertinence and initiative; To avoid incurring unnecessary costs;6.Maintenance can grasp the hidden dangers of fitness equipment; So as to reduce the workload of emergency repair after failure and shorten the time of emergency repair;7. Regular maintenance of motor, electric control and machinery can prevent potential problems and reduce personal injury caused by circuit and mechanical failure of fitness equipment (circuit short circuit, leakage and mechanical fall off);8. Maintain the fitness equipment for a long time, make the machine run more smoothly, and make the equipment more ornamental and controllable. ConclusionTo be sure, there are countless shopping websites offering a wide variety of fitness equipment. I spent some time listing some of these sites.If you need to choose the right shipping and wholesale sites, it is important that you read through each part of this article. When you're on shopping, life gets easier. 

Dropshipping Business 565 91 12/02/19
7 Wholesale Peloton Exercise Bike Websites For Wholesalers
7 Wholesale Peloton Exercise Bike Websites For Wholesalers

With the development of economy, people's life is getting busier and busier. Work fills most of the time with little time for recreation or sports. As a result, people's health becomes worse and worse. Fortunately, this problem has been solved by the peloton exercise bike. The market of peloton exercise bike is expanding, we will talk about the knowledge of wholesale peloton exercise bike. What is peloton exercise bike?Designed by the Peloton company in New York, the peloton exercise bike is unique in combining high-end design with modern technology. With a near-silent drive system and a magnetoresistive flywheel, the bike rides smoothly and quietly. Its carbon steel, monomer structure provides amazing strength and stability while maintaining mild curves, making the peloton a perfect addition to any room in your home. Peloton exercise bike after overcoming all the shortcomings of outdoor driving, due to the improvement of technology, make this exercise simple and easy to learn, become a aerobic exercise that can make the whole body get exercise. It's suitable for people between the ages of 15 and 50. But because of the bright lights and the high decibel of music, people who choose peloton exercise bike are concentrated in the 20 to 45 years old, most of the young white-collar workers. Peloton exercise bike burns a lot of energy and sweats. It also strengthens your legs, beautifies your lower limbs, and improves your oxygen intake. Practice has proved that effective 40 minutes of spinning training, can consume about 500 calories.  Are peloton exercise bike worth the cost?Peloton exercise bike aren't cheap. But that doesn't mean people aren't paying for them. Since launching in 2012, Peloton has sold more than 400,000 bikes and amassed more than 1 million members, which helps explain why the company is worth an estimated $4 billion.A sweat-resistant console, 4 times the size of a table.An immersive experience starts with a big, bright, and beautiful screen. That's why the Peloton bike has a Full HD 1080P LED panel with an all glass multitouch surface and was designed to be totally sweat resistant to withstand the rigors of a high-intensity workout. Still, it's what's behind the screen that makes the Peloton completely unique. A 1.5 GHz dual-core processor from Texas Instruments helps bring you fast HD streaming video. A front facing camera and microphone mean you can interact with friends and encourage one another while you ride. Bluetooth and ANT+ radio allow you to connect heart rate monitors and wireless headphones or speakers. And 802.11 b/g/n WiFi give you the industry's top connection speeds. This is what modern fitness looks like.That sounds pretty ideal. High-intensity workouts. Good instructors. No cold morning walks to the gym. No attempts to look attractive in activewear. Those alleged benefits really worth that high sticker price. 7 wholesale peloton exercise bike websites for wholesalers En.china.cnEn.china.cn was founded in 2006 to promote the development of small and medium-sized enterprises in China. Since its establishment, En.china.cn have developed rapidly and accumulated numerous suppliers and buyers. En.china.cn has the following advantages:1. Variety and coverage. The stable development of 13 years has brought different kinds of suppliers, more than ten million kinds of goods supply. And the business cooperation scope is broad, and the United States, the United Kingdom, Malaysia, India and Africa have many transactions. 2. Fast delivery. According to the quantity and size of customer's order, most commodity inspection will deliver the goods within the specified time as soon as possible. 3. High reputation of suppliers. Every supplier can only transact on En.china.cn after they have passed the strict examination and screening of the platform. So all the suppliers are guaranteed, you don't have to worry about being cheated. AlibabaAlibaba does not have any of its own inventories just like AliExpress. Alibaba uses a wide range of products and suppliers on its website. While it may be difficult for some people to figure out which suppliers are better and which are not as great, it will be something you can get used to soon. A general rule of thumb is to use the reviews section of the products as well as the vendors to figure out whether the purchase will be worth it or not. You must be careful to pick out authentic reviews and not paid or fake reviews which might be fabricated by the vendor to make their profile look more appealing.While this will take some time to get used to, you will eventually figure out which vendors will provide high-quality service and products and which will not.So, if you’re starting out with Chinese wholesale websites and you choose Alibaba then you don’t need to worry much about vendors. You will eventually get the hang of figuring out the better vendors from the several available. DhgateThe most eye-catching feature of DHgate is that it does not allow a lot of small businesses to operate on the website. If you scour the catalogs of different categories, you will find that the vendors present on the website are mostly large or medium-sized businesses.This is because DHgate features an extensive process for vendors to be able to operate on the website. While this is not as exciting for the vendors, this ensures quality for the people willing to make purchases on it. This feature makes it one of the best wholesale websites for people looking for high-quality vendors.These large businesses and factories offer a large variety of goods that are made from premium materials. These goods provide vendors with a lot of retail and wholesale benefits. These large businesses and factories only allow you to buy products in bulk from China which can feel like a big disappointment, but it makes it easier for vendors. DobaDoba is a holding subsidiary of Focus Technology Co., Ltd. Its platform Doba.com is a direct Shipping service platform for goods in the United States and one of the most important wholesale platforms in the United States.Doba retailers get instant access to over 2,000,000 wholesale products from their ever- growing supplier base. Rather than working out relationships and contracts with each supplier—and figuring out each's unique requirements and processes—their members have uniform access to all of their suppliers through a single, simple interface.Suppliers are able to increase sales and distribution by tapping into the marketing efforts of tens of thousands of web-based retail entrepreneurs of all sizes while simultaneously minimizing the cost and complexity of dealing with low-volume retailers. One integration, thousands of incremental retail outposts. Made-in-chinaMade-in-China was founded in 1998, developed and operated by Focus Technology Co., Ltd. As a third-party B2B e-commerce service platform, made-in-china focuses on serving global trade, is committed to building a display platform and communication channel for domestic small and medium-sized enterprises to carry out international marketing, helping suppliers and overseas buyers to establish contact and explore business opportunities in the global market. BanggoodIf you want to buy in bulk then you should visit then you should definitely visit their site.  From there you will find wholesale prices for your products that will satisfy your needs and requirements.The diversity in their products will amaze you. They also have individual products for those customers that will want to buy individual products. Their collection of peloton exercise bike are updated daily following the existing and latest trends. IndiaMartIndiaMart is India’s largest online B2B marketplace, connecting buyers with suppliers. With 60% market share of the online B2B Classified space in India, the channel focuses on providing a platform to Small & Medium Enterprises, Large Enterprises as well as individuals. Founded in 1999, the company’s mission is ‘to make doing business easy’. Pay attention1.You should negotiation with merchants sufficiently.We would definitely advise you to message the sellers before adding items to your cart. It is often the case that sellers will provide you with some discount codes if you ask them to give you discounts on bulk wholesale items.Remember to stay reasonable while bargaining and do not ask for discounts that may be a loss for the supplier. 2. Pay attention to the MOQ.The most common mistake people make is to set their target on one website without knowing the minimum requirement for order and shipping. Remember to always check for the minimum requirement on the website. You should then cross-check whether the order quantity which you have is enough to meet the criteria or not. 3. Pay attention to whether the supplier is in stock or not. Usually, it happens that the items you want will not be in stock and you would have to wait a long time until they are available again. Make sure to contact the seller and ask them about the stocks. ConclusionWholesale peloton exercise biket is the current market trend, but can not blindly follow. You'd better think hard about your purpose and money. After all, wholesale peloton exercise bike aren't cheap, and your goal is better to help you earn back your principal. In the process of wholesale must pay attention to all aspects. I wish you success in your business.  

Wholesale Suppliers 1481 50 11/22/19
Show
12|
20|
28
  • Go

RECENT POSTS

What is Fiber Optical Transceiver?
What is Fiber Optical Transceiver?

1. Introduction of optical moduleAs an important part of fiber optic communication, optical module is an optoelectronic device that realizes the function of photoelectric conversion and electro-optical conversion. To be precise, optical module is the general name of several types of modules, including optical transmitting module transmitter, optical receiving module receiver, optical transceiver module transmitter and optical forwarding module transmitter. Generally, the optical module we call generally refers to the integrated optical transceiver module, namely, optical transceiver. ① Working principle of optical transceiver Optical transceiver works in the physical layer of OSI model and is one of the core devices in optical fiber communication system. It is mainly composed of optoelectronic devices (optical transmitter, optical receiver), functional circuit and optical (Electrical) interface. Components of an optical transceiver  Basic principle: the transmitting interface inputs an electrical signal with a certain code rate. After being processed by the internal driving chip, the driving semiconductor laser (LD) or light emitting diode (LED) emits a modulated optical signal with a corresponding rate. After being transmitted through the optical fiber, the receiving interface converts the optical signal from the optical detection diode into an electrical signal, After passing through the preamplifier, the electrical signal of the corresponding code rate is output.    ② Key parameters of optical transceiver The key technical indicators of the optical transceiver mainly include: transmitting optical power, receiving optical power, overload optical power, maximum receiving sensitivity and extinction ratio. A. Transmitting optical power: refers to the optical power output by the light source at the transmitting end of the optical module under normal working conditions, which can be understood as the intensity of light, and the unit is w or MW or DBM. Where w or MW is the linear unit and DBM is the logarithmic unit. In communication, we usually use DBM to represent optical power, and the optical power of 0dbm corresponds to 1MW.B. Receiving optical power: refers to the average optical power range that can be received by the receiving end component under the condition of a certain bit error rate (BER = 10-12). The upper limit value is the overload optical power, and the lower limit value is the maximum value of reception sensitivity.C. Overload optical power: also known as saturated optical power, it refers to the maximum input average optical power that can be received by the receiver component when a certain bit error rate (BER = 10-12) is maintained at a certain transmission rate (unit: DBM). It should be noted that the photocurrent saturation of the photodetector will occur under strong light irradiation. Therefore, strong light irradiation should be avoided as far as possible to prevent exceeding the saturated light power.D. Receiving sensitivity: refers to the minimum average input optical power that can be received by the receiving end component when a certain bit error rate (BER = 10-12) is maintained at a certain transmission rate (unit: DBM). Generally, the higher the rate, the worse the reception sensitivity, that is, the greater the minimum received optical power, and the higher the requirements for the receiving devices of the optical transceiver.E. Extinction ratio (EXT): it is one of the important parameters used to measure the quality of optical modules. It refers to the ratio of the optical power P1 (when the laser emits all "1" codes) to P0 (when the laser emits all "0" codes) under the condition of full modulation, and the unit is dB. It is not that the greater the extinction ratio, the better the quality of the optical module, but that the optical module with an extinction ratio can meet the IEEE 802.3 standard is the better.       ③ Example of optical transceiver information on the switch:  Cisco switch interface optical transceiver information: Huawei switch interface optical transceiver information:2. Classification and packaging(form-factor) of optical transceivers ① Transmission rate: The current common types of optical modules are as follows:400GE optical module200GE optical module100GE optical module40GE optical module25GE Optical Module10GE Optical ModuleGE Optical ModuleFE Optical Module ② Form-factors: The higher the transmission rate, the more complex the structure, resulting in form-factors. For example, SFP/eSFP, SFP+, SFP28, QSFP+, CXP, CFP, QSFP28, etc. l  SFP (Small Form-factor Pluggable) optical module: small pluggable SFP module supports LC fiber connector.l  SFP + (Small Form-factor Pluggable plus) optical module: refers to the SFP module with increased rate. Because of the increased rate, it is sensitive to EMI and smaller than the SFP module.l  XFP (10GB Small Form-factor Pluggable) optical module: "X" is the abbreviation of Roman numeral 10. All XFP modules are 10GE optical modules. The XFP optical module supports LC optical fiber connectors. Compared with SFP + optical module, XFP optical module is wider and longer in size.l  SFP28 (Small Form-factor Pluggable 28) optical module: the interface package size is the same as that of SFP +, and supports 25G SFP28 optical module and 10G SFP + optical module.l  QSFP+ (Quad Small Form-factor Pluggable) optical module: four channel small hot pluggable optical module. QSFP + optical module supports MPO optical fiber connector, which is larger than SFP + optical module. Fiber Mall 40G QSFP+ Optical Transceivers l  CXP (120 GB/s Extended Capability Form-factor Pluggable) optical module: it is a hot-pluggable high-density parallel optical module standard. It provides 12 channels in the transmit and receive (TX / Rx) directions. It is only applicable to short-range multimode links.l  CFP (CENTUM Form-factor pluggable) optical module: the size is defined as 144.75mm × 82mm × 13.6mm, which is a new optical module standard with high speed, hot-pluggable and supporting two applications of data communication and telecommunication transmission.l  QSFP28 (Quad Small Form-factor Pluggable 28) optical module: the interface package size is the same as QSFP+, and supports 100G QSFP28 optical module and 40G QSFP+ optical module. ③ Single-mode or muti-mode? The optical fiber is divided into single-mode optical fiber and multi-mode optical fiber. The single-mode optical module is used together with the single-mode optical fiber. The single-mode optical fiber has wide transmission frequency bandwidth and large transmission capacity, which is suitable for long-distance transmission; The multi-mode optical module is used together with multi-mode optical fiber, and multi-mode optical fiber has mode dispersion defect, and its transmission performance is worse than that of single-mode optical fiber, but the cost is low. Therefore, it is suitable for small capacity and short-distance transmission. ④ Wavelength The central wavelength refers to the waveband used for optical signal transmission. At present, there are three kinds of common central wavelengths: 850nm, 1310nm and 1550nm.850nm: mostly used for short distance transmission (≤ 2km)1310nm and 1550nm: mostly used for medium and long distance transmission (>2km) ⑤ Transmission distance According to the different transmission distance of optical module, it can be divided into:Short distance optical module: ≤ 2kmMedium distance optical module, 10 ~ 20kmLong distance optical module: ≥30km.The transmission distance of optical modules is limited mainly because of the loss and dispersion of optical signals during fiber transmission. ⑥ Photoelectric module The photoelectric module is usually called electric port module or RJ45 SFP module. Unlike the optical module, the electric port module does not carry out photoelectric conversion. Through the switching of the electric module, the two optical interfaces can be connected with a network cable.RJ45 Copper SFP Module  3. Development and evolution of optical transceiversIn the current physical architecture network of mainstream data centers, Spine-Leaf (Clos network architecture) architecture is commonly followed. Usually 10GE interface is used as the access side server docking, and 40GE interface is commonly used for the uplink on the Leaf side. In large data centers, it has been common to use 25G as the mainstream access and 100G uplink. In scenarios requiring high computation and high bandwidth, GPU servers have been using 100GE and even 200GE access. Data center switch interconnects are evolving to large-scale 400GE interconnects.The development of Ethernet has undergone rapid changes from 1Mbit/s, 10Mbit/s, 100Mbit/s (FE), 1Gbit/s (GE), 10Gbit/s (10GE) to 40Gbit/s (40GE), 100Gbit\s (100GE), and with the rapid development of big data, smart cities, mobile Internet, cloud computing, network traffic has shown exponential growth. The thirst for continuous growth of bandwidth will require higher bandwidth rates, and optical modules will develop rapidly.

Application of 100G QSFP28 Interface Model For Data Centers
Application of 100G QSFP28 Interface Model For Data Centers

After years of development, 100G applications have formed a variety of technology types and alliances, whether it is the standardized ieee802.3bm or the 100G application model launched by SWDM, MSA and other organizations. There are many kinds of interfaces and application technologies supporting 100G, and each has its own characteristics. For the practical application of the data center, the distance between the connection points of most data centers does not exceed 500 meters. From a large number of 100G interface models, we have selected four types that are most likely to be used in data centers for further analysis for users who need to deploy 100G for reference. 1. 100GBase-SR4 100GBase-SR4 complies with the new standard ieee802.3bm issued in 2015. It uses 4 channels composed of 8-core multimode fiber for parallel transmission. Both multimode OM3 and OM4 optical fibers support 100G applications. The interface adopts 12 core MPO interface. The middle four core optical fiber does not need to be used. Each channel supports 25G. The transmission model is completely consistent with 100GBase-SR4 in ieee802.3ba. The optical transceiver adopts 100G QSFP28 SR4. This model can use conventional OM3 and OM4 multimode optical fibers to support 70m and 100m distances of 100G applications respectively. 2. 100GBase-SWDM4 SWDM (Short Wavelength Division Multiplexing) transmits four wavelength bands of optical signals over a single core of multimode fiber. The principle of WDM is similar to CWDM on single-mode, but SWDM is the first application of WDM technology on the short wavelength band of multimode fiber. It can be referred to the transmission principle model in the following figure:  The main transmission window of traditional OM3 and OM4 multimode fiber is defined at 850nm. If SWDM technology is adopted, four windows are required to transmit optical signals, and the four wavebands still use VCSEL vertical cavity surface emitting lasers with high cost performance. In order to improve the overall bandwidth, the bandwidth of the new generation multimode fiber WBMMF(Wideband Multimode Fiber) is increased. In WBMMF, the highest bandwidth performance is around 880nm band, and the highest bandwidth point is higher than that of traditional OM4 multimode fiber. The SWDM technology can also use OM4 optical fiber as the transmission medium, but the transmission distance should be reduced accordingly. Compared with the SR4 model, SWDM4 requires only 25% of the optical fiber.3. 100GBase-PSM4 100GBase-PSM4 adopts single-mode optical fiber parallel transmission mode. Each 100G model adopts 8-core single-mode optical fiber to form four independent channels. The interface adopts 12 core MPO interface, in which the middle 4-core optical fiber of MPO interface is not enabled, and each channel supports 25G. The optical fiber transmission model is similar to 100GBase-SR4. The biggest difference is that PSM4 adopts single-mode optical fiber as the transmission medium and laser light source 1310 window. The optical transceiver also adopts QSFP28, and the connector adopts MTP / MPO single-mode APC. At present, 100GBase PSM4 has not been recognized by IEEE standardization organization, and is mainly promoted by PSM4 MSA alliance. 4. 100GBase-CWDM4  100GBase-CWDM4 is a 100G transmission model based on single-mode coarse wavelength division multiplexing(CWDM) technology. The fiber optic transceiver uses a single-mode laser light source with LC duplex interface, and supports four long wavelength bands of signal transmission on each core fiber, these four emission windows are 1271nm,1291nm,1311nm,1331nm, and each band transmits 25G. 100GBase-CWDM4 model is also used QSFP28 optical transceiver.Compare to traditional single-mode 10KM transceiver with high cost, the 2KM QSFP28 100G CWDM4 transceiver has a competitive price.   5. Summary  Different types of data centers determine different needs. Not all data center users currently have the need to deploy 100G, so what types of users need to deploy 100G networks the most? To answer this question, we can divide data centers into two major categories, IDC (Internet Data Center) and EDC (Enterprise Data Center). Relatively speaking, some IDC data centers have more urgency to deploy 100G backbone networks, such as the data centers of large interconnection companies or carriers or some scaled cloud computing data centers. In terms of current price, although the wiring cost of multi-mode 100G based on SR4 is relatively high, the overall price has certain advantages, especially the price of SR4 optical transceiver is significantly lower than that of other types. Meanwhile, the price of optical transceiver based on CWDM single-mode is significantly higher than that of the other three types. The overall price difference between PSM4 and SWDM is small. As the SWDM alliance participated by a small number of optical transceiver manufacturers, it is not a public technology at present, and the market price remains relatively high temporarily. However, from the perspective of technology and cost composition, there is still a large room for price decline of SWDM, and this product has a certain market potential in the future.

6 Ways Choose Digital knife Cutting Machines
6 Ways Choose Digital knife Cutting Machines

In the machining process, cutting is the most common processing method. There are many different cutting methods, such as manual cutting, die-cutting, digital cutting, etc. Different cutting methods apply to different types of work. Manual cutting is flexible and convenient, but the cutting quality is disappointing, the error is enormous, and the productivity is low. Die-cutting offers a fast and inexpensive way to cut, allowing for high volume production. But as consumer demands increase, more refined finishes have become the new standard for fabricators, and digital cutting allows for more complex shapes to be cut and delicate cuts to be made.Digital knife Cutting Machines are designed for industrial digital conversion, with intelligent slicing, built-in weighing, and many other unique features. Manufacturers in selecting digital knife cutting machines to integrate various factors, if you are not a professional in the machinery industry, there is not much knowledge of machinery, even if you have collected a lot of information, it is difficult to make the right choice. When choosing equipment, you should compare the quality of the equipment as well as after-sales aspects. The essential components of the digital knife cutting machine.1. The body, which carries all the parts of the machine2. Sliding plate or slide can move numerically to achieve processing3. Sliding plate drive mechanism, including motors, couplings, screws, nuts slide plate, etc., through the form of movement from rotation to linear movement of the slide4. Control system, including motor drive, main control board, software, etc., is the core of the machine. According to the basic structure of the equipment, you can choose from the following aspects.   6 Ways Choose Digital knife Cutting Machines1.Bed structure2.Accessories3.Installation process4.Actual usage cost5.Multifunctionality6. Warranty terms Bed structureThe high-quality bed is an essential factor in ensuring that the cutting machine can run continuously and stably. If the bed quality is poor, work will shake, resulting in poor cutting accuracy, so be sure to choose a greater self-weight, reasonable structure of an all-welded bed. AccessoriesOnly the use of high-quality accessories equipment has the excellent quality, can ensure continuous and stable work. The more critical accessories include the electrodes, the drive method, and the working platform. The dual-motor drive and the dual-frame drive method can ensure the accuracy of the cutting machine for a long time. The vacuum adsorption platform should try to choose a high-power vacuum pump to ensure that the material is fixed firmly during the processing. Platform plane detection system can effectively extend the service life of the working platform and provide a good cutting effect. Other types of accessories should also choose the regular brand.  Installation processGood or bad installation technology is the core factor reflecting the production quality of a machine. Even if you choose high-quality accessories, you still can not produce high-quality products if the installation is not reasonable. A qualified installation should be scientific, clean, and tidy.The actual cost of useThis problem is a critical point. If the cutting machine is processing low yield, high energy consumption, and high scrap rate, it will significantly disadvantage your output. So whether it is to control your costs or improve product quality, choose the actual use of the low-cost cutting machine is very necessary. VersatilityVersatility determines the range of work that the cutting machine can perform, the types of materials that can be processed, etc. A fully functional cutting machine can make your investment more valuable. Warranty termsThis issue is a crucial point in the after-sales service, which determines the warranty coverage of the cutting machine and is an essential factor for you to save on maintenance costs. As an R&D and production company engaged in the machinery industry for many years, we always insist on producing high-quality machines. We hope we can help more factories to realize intelligent production. We will provide you with high-quality Digital knife Cutting Machines and share more knowledge about choosing the machine. If you need, welcome to contact us!

JOUAV brings many products to the World UAV Conference
JOUAV brings many products to the World UAV Conference

On May 21, the 2021 Fifth World UAV Conference and Shenzhen International UAV Exhibition will be held in Shenzhen as scheduled. JOUAV has exhibited many new products with many partners, including the hydrogen-powered vertical take-off and landing fixed-wing UAV CW-25H jointly launched with Doosan Innovation; 5G networked UAV jointly launched with China Mobile Cheng Research Institute; and The CW-15+ industrial camera solution jointly launched by Phase One China; the aerial survey software solution jointly launched by Wuhan Xuntu, etc.JOUAV also won a series of honors at the conference, such as the 2021 5th Global Drone Contribution Award, the 5th World Drone Conference JOUAV Design Award, the 5G Netlinked Drone Application Landing - Contribution Award, and the Police Equipment Technology Innovation Award.With the continuous development and progress of aviation technology and industry chain, the emerging aviation industry represented by drones has entered a new stage of development, and its intelligent, platform-oriented, and tool-oriented attributes have been further explored and strengthened. "The reduction of cost will further promote the popularization of industrial drones and empower various industries.In this exhibition, JOUAV first fully demonstrated the platform-based architecture model and is committed to providing users with a more high-quality experience and differentiated services to serve a broader range of application scenarios.Hydrogen-powered VTOL fixed-wing UAV CW-25HIn May this year, the company, together with Doosan Innovation, successfully delivered the world's practical hydrogen-powered vertical takeoff and landing fixed-wing UAV, CW-25H, with a range of 330 minutes.After two years of intensive technical research, JOUAV completed the development of an integrated hydrogen fuel cell + UAV platform based on its rich technical accumulation in the field of vertical takeoff and landing fixed-wing UAVs; Doosan Innovation successfully launched a new generation of lightweight, air-cooled DM15 fuel cell system based on its technical advantages in the field of fuel cells. The close cooperation between the two parties has enabled the hydrogen-powered vertical takeoff and landing fixed-wing UAV to move from concept exploration and critical technology research to the stage of engineering and radicalization.5G Networked Drones In April, JOUAV, together with China Mobile (Chengdu) Industry Research Institute, released the JOUAV 5G Networked UAV solution. 5G Networked Drones is deeply integrated with the 5G Networked system. It can be applied in many fields such as water patrol, forest patrol, and grass protection, Border patrol and defense, coastal security, emergency disaster relief, police law enforcement, aerial security, digital city, traffic patrol, etc. CW-15 V2 + Industrial Camera Solution In March, JOUAV released the CW-15 V2 UAV, which can be as simple and easy to use as a consumer-grade product and can be used with partners for secondary development of loads and software.JOUAV CW-15 V2 UAV is equipped with a 100 million pixel Feisi camera, which can achieve better than 2CM resolution tilt photography and achieve "high efficiency and high accuracy. "It can realize multiple uses of one data, change the application of mapping and geographic information in various industries, and build a broad new application model.Cooperating with Wuhan RAMAP to exhibit aerial survey software solutionsOver the years, JOUAV and Wuhan RAMAP have continuously launched aerial survey system software. For example, in 2017, our two companies jointly established the 1:500 camera-free photogrammetry system, which saved many fieldworks for most photogrammetry users. It is highly praised within.Now, after three and a half years of hard work, combined with the latest photogrammetry development trends and trends at home and abroad, the two companies have jointly developed a new generation of realistic 3D system and 2D integrated system, providing a more efficient and scientific solution for the photogrammetry industry. One of the new generation of the realistic 3D system, from multiple images, after a series of efficient automated processing, to get high precision and high fidelity of the actual 3D model, processing, you can join the ground control points or air control (differential GPS) to get the product with geographic coordinates. After further optimization by GPU technology and intelligent cluster technology, the efficiency of the product has been dramatically improved, and the product effect, flat plane, and straight line, so that the realistic 3D to the natural direction to a higher level. The 2D integrated system, on the other hand, starts from the image of vertical photography, and after a series of efficient automated processing, gets high precision and high fidelity DSM and TDOM (accurate shot) ideas, including the functions of air three, image control free, DSM dense matching, proper shot correction, seam line finding, color leveling, and light leveling.In addition, the JOUAV UAV ground charge vehicle was also presented at the exhibition. The ground accusation vehicle can highly integrate the JOUAV UAV platform, mission payload, ground command system, highly integrated, fast response; reasonable layout, convenient operation; 100 km long dual link; durable and reliable, uninterrupted operation; multiple redundancy, safe operation, and other features. Platform strategy is the global dynamic optimization that JOUAV has been pursuing. JOUAV advocates and drives the "point, line, surface, and body" in the industrial UAV ecosystem to develop and connect extensively to form a network effect, thus accelerating the innovation of technology and products.JOUAV Chairman Ren Bin said that the new generation of industrial drones is safe, reliable, and empowering to all industries and "popularized" by the low cost of use. "Only in this way can drones become "industry-based tools" in the true sense of the word.