1. The precision of the fixture requires the use of fixtures during welding to ensure the position of each hole. If the fixture is not precise, it may result in an unqualified frame angle, Not only is it impossible to install during installation, but it also affects the uneven height of the front and rear forks of the electric vehicle, so the precision of the fixture is very important. 2. The welding technique of a welder determines the quality of welding and also the safety of the rider. Generally, a welder must have 3-5 years of experience Welding experience is essential to ensure the stability of the welded frame. 3. The welding wire and electrode used for welding also determine the quality of welding. If both the welding wire and electrode are used poorly, the welding effect will not be good. Every step, every process, cannot tolerate any carelessness, and the quality of the overhead electric vehicle frame is made in this way.

Electric bicycle malfunction 1: Turn on the power, the controller is working normally, rotate the handle, but the motor does not rotate. Self repair method: 1. Check if the speed control line on the right hand is loose, and if the controller or motor connector is loose; 2. Whether the left and right brake handles are powered off. Electric bicycle malfunction 2: Riding is laborious and slow. Self repair method: 1. Check if the brake is locked; 2. Is the inner tire pressure appropriate; 3. Whether the battery voltage is sufficient; 4. Does it exceed the limit slope or head wind. Electric bicycle malfunction 3: short driving distance. Self repair method: 1. Long term battery storage: Please recharge first; 2. Is the tire pressure insufficient: inflate it; 3. Check if the brakes are too tight and rub against the wheels: Adjust the brakes; 4. Whether the battery is fully charged: supplementary charging; 5. Whether encountering uphill or windward conditions: pedal assisted driving; 6. Is the temperature too cold: The battery cannot produce energy. Electric bicycle malfunction 4: Turn on the power lock with the key, the power indicator light on the dashboard does not light up, turn the handle, and the motor does not turn. Self repair method: 1. The fuse on the battery box is burnt out: replace the fuse; 2. Poor contact of the fuse on the battery box: Adjust the fuse tube to ensure good contact; 3. Poor contact of the contacts on the battery box: Adjust the contacts to make good contact; 4. Burnt battery box contacts: replace with new contacts; 5. Burnt electric door lock: replace with a new electric door lock; 6. Open circuit of battery leads inside the battery box: update and connect the circuit; 7. Open circuit inside the battery box: replace or repair the battery; 8. Open circuit or poor contact of the switch lock lead or contact lead: rewire.

1. Prioritize your own needs and positioning. Whether it's urban commuting, commuting to work, or part-time driving varies depending on the requirements. If commuting in the city, 48V or 60V is actually sufficient. If you often need to climb hills, you need to buy a higher 72V. 2. Check the battery's endurance. The higher the voltage V, the faster the speed, and the larger the ampere Ah, the longer the endurance and the longer the driving range. When buying, you can ask about the battery brand. If it is a miscellaneous brand, it is recommended not to buy it because the battery has a relatively large loss, and miscellaneous brand batteries generally experience severe performance degradation after 12 months. 3. Choose a wider tire. It is not easy to slip on rainy days and not easy to fall when turning. 4. Safe braking. Brakes include disc brakes, drum brakes, and expansion brakes. Disc brakes are the best, but dual disc brakes generally have some safety hazards. The braking of the front disc and rear drum is relatively safe for electric vehicles. 5. Stability of the frame. The frame is the core of the entire car, and safety and stability are also the most important. It depends on whether it is welded together and whether it has undergone vibration testing. The above are some key issues to pay attention to when choosing an electric bicycle that the Space Cardan Electric Bicycles factory shared with you today. We hope it can provide you with some reference.

As a means of transportation for proxy driving, the range is the most important. A proxy driver can cycle about 100 kilometers per day. Currently, the common proxy driving method on the market is to integrate the advantages of electric vehicles and bicycles, which is called "electric bicycles". There are three modes: pure pedal mode, pure electric mode, and three assist mode. What kind of cremation will occur when using the transmission shaft for contemporary electric bicycles? Advantage 1: After using the transmission shaft in modern electric bicycles, there will be no situation of dirtying the customer's trunk. Because traditional chain gears require frequent lubrication and maintenance, the chains and gears are prone to sand and dust, which can easily get dirty when placing the customer's trunk. Moreover, some customers have cars in the million level, so choosing a transmission shaft electric bicycle can avoid such situations. Advantage 2: After using the transmission shaft, contemporary electric bicycles can increase the battery's endurance. Because the entire transmission system of the transmission shaft is closed, with small gaps during the transmission process, strong transmission power, and low energy loss, it can increase the battery endurance compared to ordinary chain cars. The Space Cardan Electric Bicycles factory has produced a customized transmission shaft electric bicycle, which is not only stylish in appearance but also highly praised by customers as a substitute driving car. It is selling like a tide. Foshan Space Cardan Electric Bicycles Co., Ltd. is a 26 year manufacturer specializing in the production and research of electric bicycles. With experience in foreign trade exports from 50 countries, it is trustworthy and can also make electric bicycle samples according to customer requirements. Only when satisfied can it be mass-produced.

Many friends from outside the industry are not very clear about the frame production process. Therefore, Space Cardan has compiled relevant information on the frame production process for everyone, hoping to be helpful. 1、 Feed: The bicycle factory feeds pipe materials. 2、 Material preparation: (The premise of material preparation is that everything is based on the drawing data.) After the pipes come in, they are classified, placed, and labeled according to the length and diameter of each pipe required by the frame drawing. 3、 Front Triangle Assembly: The front triangle assembly has a dedicated assembly platform that can be adjusted according to the shape of the frame. After adjusting the assembly mold, a sample will be spot welded out. First, the angle and data will be compared according to the drawing, and then the centerline will be tested on the platform until it meets the standard. 4、 Front triangle welding: After the front triangle is assembled, it is welded. After the front triangle is welded, inspectors will inspect its welding quality. 5、 Correction of the front triangle: After the inspection is completed, it is time to correct the front triangle. On the calibration platform, the frame calibration is based on the five joints (including the calibration of the entire frame), with the center line of the five joints as the centerline. It is required that the entire frame, regardless of the head pipe, upper pipe, lower pipe, middle pipe, or rear fork, must be parallel on a centerline. 6、 Assembly of the rear triangle: This process is similar to the front triangle in that it has an additional front triangle. 7、 Spot welding brake seat: After the entire frame is welded, spot welding the brake seat is carried out. Welding the brake seat without correcting the symmetry of the rear fork of the frame is not feasible during the subsequent brake seat correction process. 8、 Twisted holes in the frame: It is necessary to use a cutter to clean the inner diameter of the middle pipe (the size of the cutter varies according to the diameter of the middle pipe). After twisting the hole, conduct a full inspection, store it in the warehouse - post-processing - painting Let's discuss the following processes when we have time. Space Cardan Co., Ltd. in Shunde District, Foshan City focuses on the research and development, production, and sales of chain free bicycle drive shafts. Our products are exported to overseas markets and have 25 years of experience in manufacturing. Years of investment in production and research, as well as reliable modern production technology, have earned Space Cardan products a good reputation in the market. We welcome customers from home and abroad to visit our company to guide our business.