Low Speed High Torque Slewing Gearboxes

Low Speed High Torque Slewing Gearboxes


Low speed high torque slewing gearboxes are an essential component for the operation of many types of heavy machinery, including cranes, excavators, and wind turbines. These gearboxes are designed to provide the necessary power to move large loads at a slow and controlled speed, making them ideal for applications where precision and safety are critical.

Slewing Gearboxes

Working Principle

Low speed high torque slewing gearboxes work by using a planetary gear system to transfer torque from the input shaft to the output shaft. The planetary gear system consists of a central sun gear, planetary gears, and an outer ring gear. The input shaft drives the sun gear, which in turn drives the planetary gears. The planetary gears rotate around the sun gear and also mesh with the outer ring gear. The output shaft is connected to the outer ring gear, which causes it to rotate at a slower speed than the input shaft, but with much greater torque.


  • High torque capacity
  • Precise control of rotational speed
  • Compact design
  • High efficiency
  • Durable and long-lasting


Low speed high torque slewing gearboxes are commonly used in the following types of machinery:

  • Cranes and hoists
  • Excavators and backhoes
  • Wind turbines
  • Heavy-duty construction equipment
  • Rotary tables for manufacturing and machining

How to Choose the Right Planetary Gearbox/Reducer: A Purchasing Guide

Parameter Factor to Consider
Ratio Determine the required output speed and torque, then choose a gearbox with the appropriate ratio to achieve the desired output.
Input Speed Consider the maximum input speed of the gearbox and ensure that it is compatible with the speed of the input shaft of the machinery.
Output Torque Determine the required output torque and select a gearbox with a torque rating that meets or exceeds that value.
Efficiency Choose a gearbox with a high efficiency rating to minimize energy loss and maximize performance.
Environmental Conditions Consider the operating environment, including temperature, humidity, and exposure to dust and debris, and choose a gearbox with appropriate seals and lubrication to ensure reliable operation under those conditions.

About Our Company

Our company is a leading manufacturer of low speed high torque planetary gearboxes, with a proven track record of delivering high-quality products to customers worldwide. Our team of experienced engineers and technicians is dedicated to designing and manufacturing gearboxes that meet the highest standards of performance and reliability.

Our Company

At our company, we are committed to providing our customers with the best possible solutions for their machinery needs. We pride ourselves on our ability to deliver high-quality products that are tailored to the specific needs of each customer, and we are constantly seeking new ways to innovate and improve our products and services.

Author: Miya