The Speed Engine Behind China Highest 32000 RPM High-Speed Three-Motor Durability Test Bench

Recently, China's first 32,000 rpm three-motor endurance testing rig was officially unveiled, marking a breakthrough in high-speed motor testing platforms and ending the foreign technological monopoly in this field. This signifies my country's entry into a new stage of "ultra-high-speed testing." As the supplier of the core component of this "high-speed champion"—the high-speed gearbox—Chongqing Yongjin Heavy Machinery Complete Equipment Co., Ltd. (hereinafter referred to as "Yongjin Heavy Machinery") is contributing to the development of China's high-speed motor industry with its precision transmission technology.

32,000 rpm of Trusted Performance: The Core Transmission Solution Behind the Test Bench

This test bench, jointly developed by Tianjin Qingrunbo Intelligent Technology, Tsinghua University Tianjin Advanced Equipment Research Institute, and Xiangyang Daan Automotive Testing Center, is a "rigorous examiner" for new energy vehicle drive motors. It needs to simulate complex scenarios such as high-speed operation and rapid acceleration, conducting long-term durability tests on the motors. The gearbox, as the core component of power transmission, directly affects the accuracy and reliability of the test bench.

Chongqing Yongjin customized a high-speed gearbox for this test bench, showcasing its strength with core technologies:

01 Extreme Speed Breakthrough

The maximum output speed reaches 32,000 r/min. Through precise gear design and ratio, the speed accuracy error is controlled within ±2.6%, meeting the test bench's requirements for ultra-high-speed operating conditions and providing precise transmission support for motor performance testing.

02 Powerful Load Capacity

The gearbox has a rated power of 700kW and a maximum input torque of 4456 N.m, easily handling the instantaneous high-load impact of the motor during testing, ensuring uninterrupted power transmission.

03 Power Consumption Control and Reliable Lubrication Design

Due to space limitations and the requirements of high speed and high torque applications, the gearbox generates a significant amount of heat. Effective gear meshing simulation reduces heat generation. At the same time, a unique lubrication scheme is employed to precisely distribute the lubricating oil, ensuring that every gear meshing surface and bearing is fully lubricated. The oil return system quickly dissipates heat, keeping the oil temperature stable within the ideal range of 60-70℃ during full-load operation.

From 32,000 rpm to 100,000 rpm: Our High-Speed Gearbox Application Landscape

The provision of a test bench for the domestically highest-speed 32,000 rpm motor is a significant demonstration of Chongqing Yongjin's technical strength. As a professional designer and manufacturer of high-speed gearboxes, Chongqing Yongjin has progressed from breaking foreign monopolies to independent innovation, and its high-speed gearbox application performance has reached 100,000 rpm, placing it in a leading position in the domestic industry. With its excellent performance, our gearboxes are widely used in non-standard testing platforms in high-end fields such as aerospace, railway locomotives, and other advanced industries.

In the future, Chongqing Yongjin will continue to deepen cooperation with leading companies in various industries, constantly striving in cutting-edge technologies to provide more efficient and reliable high-speed transmission solutions for industries such as aerospace, new energy vehicles, and high-end equipment.