Industry Gear Boxes

Donghai provides high quality QYJ Series Helical Gear Box, you can rest assured to buy it from our factory. Donghai's Variable Speed Gear Box cater to a wide array of industrial needs. Donghai also offers customizable solutions, collaborating with global clients to design Variable Speed Gear Box tailored to specific operational requirements. Donghai's commitment to innovation and quality ensures its Variable Speed Gear Motors deliver exceptional performance and adaptability across diverse applications.


The Gear Box has the following technical advantages:

1. Smooth and efficient transmission: When helical gears mesh, the contact line gradually changes, with small impact force, and the transmission efficiency can reach 94%-98%, making it suitable for scenarios that require long-term operation.

2. Low-noise design: Compared with spur gears, helical gear transmission reduces noise by 10%-15%, with operating noise a 58dB(A), meeting the noise standards for industrial environments.

3. High load-bearing capacity: The gears of QYJ Series Helical Gear Box are made of high-strength alloy steel (such as 20CrMnTi), and undergo carburizing and quenching treatment. The tooth surface hardness is HRC58-62, which is wear-resistant and impact-resistant, and suitable for heavy-duty working conditions.