Jershtech DC Motors
Shenzhen Jershtech Technology Co., Ltd. represents the pinnacle of China's DC motor manufacturing. We bridge the gap between advanced engineering and global supply chain reliability, focusing on the 42mm frame size—a critical standard in modern motion control.
As a leading exporter, we understand the nuances of international compliance, from CE and RoHS to specific automotive and medical grade standards, ensuring our motors integrate seamlessly into European, North American, and Asian markets.
Our philosophy is simple: "Engineered to last, built to fit." We utilize high-grade permanent magnets, precision-cut gears, and advanced winding techniques to deliver maximum power density in a 42mm diameter package.
The global market for 42mm DC gear motors (often powered by RS-775 or 755 base motors) is experiencing an unprecedented CAGR. This growth is driven by the shift toward decentralized automation. Unlike large industrial motors, the 42mm variant offers the "Goldilocks" balance of high torque (up to 30Nm in planetary configurations) and compact physical size.
Efficiency in BLDC Variants
Max Output Torque
Hours Service Life (BLDC)
Input RPM Capability
Our 42mm gear motor factory utilizes a vertically integrated production process. From the initial hobbing of gears to the final lifecycle aging tests, every step is monitored by AI-driven QC systems.








The roadmap for 42mm gear motors includes the transition to powder metallurgy for gear tooth durability and the implementation of brushless DC (BLDC) technology to eliminate maintenance requirements. Future models will feature integrated drivers capable of CAN bus communication, allowing the motor to be a "node" in a wider network of machines.
Central locking systems, seat adjustments, and electric bicycle drive units. Our 42mm motors provide the necessary torque for heavy-duty cycling and vehicle automation.
From dialysis pumps to adjustable surgical tables, the 42mm planetary gear motor offers the low-noise, high-precision movement required in clinical environments.
Robotic vacuum cleaners, automated curtain systems, and home security locks. The compact 42mm form factor fits perfectly into modern consumer electronic designs.








We do not just sell motors; we provide comprehensive motion control ecosystems. Our engineers work directly with your R&D department to customize gear ratios, shaft lengths, and electrical characteristics. This holistic approach reduces time-to-market for our clients and ensures that the 42mm gear motor isn't a bottleneck, but an enabler of your technology.
Tailored mechanical interfaces and electrical winding optimization for specific voltage/torque requirements.
Strategic warehousing and logistics management to ensure consistent delivery of high-volume orders globally.
Access to our senior engineering team for feasibility studies and motion profile analysis.