In various types of heavy-duty mechanical equipment, how to achieve efficient, stable and low-noise power transmission has always been the focus of buyers. The QYJ series parallel shaft helical gear reducer is a high-performance transmission solution tailored for such industrial scenarios. Its core advantages lie in its compact structure, strong bearing capacity and high transmission efficiency. It is widely used in motor drive, material transportation, lifting machinery, metallurgical equipment, mining machinery and other fields with strict power requirements.
The QYJ series adopts a parallel shaft design and combines it with a helical gear transmission method, making the entire gearbox compact and small in size, which is easy to install and maintain later. During the transmission process, the bevel design of the helical gear enhances the meshing accuracy between the gears, greatly reduces the noise and vibration during operation, and significantly improves the transmission stability, making the equipment run more quietly and reliably.
This series includes two basic models, QYJH (parallel shaft) and QYJB (90° shaft), which support one to four speed changes, transmission ratios ranging from 1.25 to 450, output torques of up to 3 to 900 kN·m, input power ranges from 1.1 to 4000kW, and speeds compatible with a variety of mainstream industrial specifications such as 1000rpm, 1200rpm, 1500rpm and 1800rpm. Whether it is heavy-load conditions for large equipment or high-speed applications in light industry, QYJ can provide flexible customized solutions.
For users, the biggest change brought by the QYJ series gear reducer is the improvement of efficiency and the reduction of maintenance costs. The efficient gear transmission system effectively reduces energy consumption and helps customers save considerable energy expenditures in long-term operation. At the same time, the manufacturing material selection of this product is extremely rigorous. The gear parts are precision-machined with high-strength alloy steel and strengthened by multiple heat treatment processes, with excellent wear resistance and service life. The box body is welded with high-quality cast iron or steel plates to ensure that it will not deform even when subjected to large loads, further improving the stability and safety of the equipment.
In actual applications, QYJ series reducers are widely used in metallurgy, mining, cement, building materials, electricity, chemical industry, port machinery and other industries. On the metallurgical production line, it can accurately control the speed of the rolling mill and improve product consistency; in the mining conveying equipment, it can stably drive the long-distance belt conveyor and effectively cope with high impact loads; in the lifting system, the reliable output performance ensures the safety of the lifting operation. It supports multiple installation methods such as horizontal, vertical and vertical, which is convenient for integration into equipment systems of different structures, and truly realizes multi-scenario and cross-industry adaptation.
In addition to performance advantages, Donghai QYJ series reducers also have a professional after-sales support system to ensure that customers have no worries during the entire process of selection, installation, commissioning and use. We not only provide detailed technical parameter tables and CAD installation drawings, but also provide non-standard customization according to the actual needs of customers, helping global customers to easily cope with diverse working conditions.
Zhejiang Donghai Reducer Co., Ltd. was established in 1991, after more than 3 decades of development. It has been a leading enterprise with scientific and technological dedication to the research and development, manufacturing, and sales of transmission equipment. The main products include a helical gearbox, a helical gear motor, and a non-standard gearbox. Explore our full range of products on our website at https://www.dhgearmotor.com/. For any inquiries, please reach out to us at ib@dhctgs.com.
