Recently, Underwriters Laboratories Inc. (UL) officially opened and put into trial operation at the UL Testing Service Center in Nansha, Guangzhou, China.
The UL Inspection Service Center will provide customers with product inspection and testing services, including commodity testing, inspection and auditing, to assist manufacturers in the production operations, from the R&D design phase of the product to the final mass production. Import a more cost-effective and comprehensive management platform and further strengthen the quality management of the retail supply chain.
The UL Inspection Service Center has world-class advanced test equipment that provides reliability testing, performance testing, and energy efficiency testing for many electrical and electronic products, including home appliances, consumer electronics, and lighting equipment. In addition, the LED Lighting Testing Laboratory currently being built by the UL Testing Service Center will be the largest LED lighting testing laboratory in the world.
Through UL's testing services, manufacturers will be able to perform customized and professional and fair product testing or supplier inspection audits based on regulations, industry and individual agreements to improve management efficiency. In addition, manufacturers can also get more high-quality innovative services, such as accessing real-time quotes, tracking service progress, downloading corresponding test reports, and electronic payment through the UL website system.
UL Guangzhou Testing Service Center is the first testing service center for UL expansion in Asia after the testing centers in New Zealand, the United States and the United Kingdom. At the same time, UL plans to continue to set up such laboratories in India and Japan.
42mm DC Brushless Gear Motor mainly including 42RPBL4250 and 42RPBL4260
Since spur gearbox or worm gearbox has a limited lifespan, and brushless motor can achieve more than 2000 continuous hours, so we merely use dc brushless motor with spur gearbox.
42RPBL4250 and 42RPBL4260 are both DC Planetary Gear Motor, the available gear ratio including: 3.7, 5, 13, 18, 25, 49, 67, 92, 125, 181, 246 etc
Brushless motors are typically 85-90% efficient whereas brushed DC motors are around 75-80% efficient. This difference in efficiency means that more of the total power used by the motor is being turned into rotational force and less is being lost as heat.
Brushless DC motors have many advantages over their brushed DC motor counter parts. The most obvious advantage of a brushless motor is its lack of brushes and physical commutator. This difference means that there are many fewer parts that can wear out or break and need to be replaced than in a brushed motor.
42mm DC Brushless Gear Motor
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