8AT Input Shaft

Our company independently developed a series of CNC deep hole drilling machines. Targeting the industry challenges in deep hole machining of gearbox input shafts — including difficulties in guaranteeing straightness and stringent precision requirements for oil passage holes — we adopted innovative tool design, optimized machining processes and developed dedicated fixtures. The machining accuracy far exceeds industrial standards: the straightness reaches 0.3 mm for lengths between 500 mm and 600 mm, and 0.4 mm for lengths between 700 mm and 800 mm. This technology effectively ensures unobstructed oil passages and excellent shaft concentricity, greatly reduces the NVH level during gearbox operation, and improves the consistency and reliability of mass production. We have been designated as a qualified supplier for input shafts by multiple domestic OEM manufacturers.

量产

Hybrid transmission

motor shaft

To meet the stringent requirements for concentricity, spline accuracy and fatigue resistance of high-speed motor shafts for electric drive axles under high rotating speed and high torque operating conditions, our company adopts 20CrMnTi steel. With innovative precision machining techniques, optimized heat treatment procedures and full-process high-precision inspection solutions, we have achieved stable mass delivery of a full range of motor shafts. Our products deliver outstanding core performance: the concentricity of electric drive axle motor shafts reaches 0.01 mm, and the spline accuracy complies with grade 6f. This effectively cuts down NVH during high-speed motor operation, greatly extends the fatigue life of motor shafts and ensures consistent quality in mass production. The products fully satisfy the high-performance application demands of electric drive systems for new energy vehicles.

小批量

Electric Drive Axle Assembly

Rear-wheel Drive 8AT P4 Planet Carrier Assembly

This product is a high-precision carrier assembly, a core component for P4 hybrid and rear-wheel-drive 8AT transmissions. Addressing the industry challenges of tight positional tolerance and difficult machining for pin holes of planet gears, we adopt innovative pin hole machining processes, custom precision fixtures and full-dimensional inspection with coordinate measuring machines (CMM). The positional tolerance of planet gear pin holes reaches an ultra-high precision of 0.03 mm. This precision ensures accurate meshing between planet gears, sun gear and ring gear. It effectively reduces impact, wear and NVH during transmission operation, and greatly improves the running stability, transmission efficiency and long-term reliability of the carrier assembly. The product fully meets the high-performance requirements of premium hybrid and fuel-powered transmissions.

小批量

Transmission & Driveline Systems