Swing Gearbox Fit for Excavator Daewoo DH225-7
Swing Gearbox Fit for Excavator Daewoo DH225-7
Swing gearbox is an important component of excavators, responsible for controlling the rotation of the upper structure. It plays a crucial role in the efficient operation of the machine. Here are some key functions of swing gearbox:
- Transmit power from the hydraulic motor to the swing bearing
- Control the swing speed
- Handle the load of the upper structure
- Provide smooth and stable rotation of the upper structure

Swing Gearbox Installation and Working Principle
The swing gearbox is generally installed in the center of the upper structure of an excavator. It is connected to the swing bearing and the hydraulic motor. When the hydraulic oil flows into the motor, it drives the gearbox to rotate, which in turn drives the upper structure to rotate. The working principle of the swing gearbox is based on the transmission of power through a set of gears, which are designed to handle high loads and provide precise control over the speed and direction of rotation.

Swing Gearbox Compatibility and Parameters
Our swing gearbox is perfectly compatible with the Excavator Daewoo DH225-7. Before purchasing, it is important to determine the following parameters:
| Parameter | Description |
|---|---|
| Swing radius | The maximum distance from the center of the upper structure to the edge of the working area |
| Swing speed | The maximum speed at which the upper structure can rotate |
| Swing torque | The maximum torque that the gearbox can handle |
When to Replace Swing Gearbox?
Here are some signs that indicate it is time to replace the swing gearbox:
- Abnormal noise during operation
- Inconsistent or slow rotation
- Increased vibration
- Leakage of hydraulic oil
How to Maintain Swing Gearbox?
Proper maintenance can significantly extend the lifespan of swing gearbox. Here are some routine maintenance tips:
- Regularly check the oil level and quality
- Replace the hydraulic oil and filter at recommended intervals
- Inspect and replace any damaged gears or bearings
- Ensure proper alignment of the gearbox and bearing during installation
Compatible Excavator Brands and Models
Our swing gearbox is compatible with a wide range of excavator brands and models, including but not limited to:
- Caterpillar 320D
- Komatsu PC200-7
- Hitachi ZX200-3G
Note that we do not sell products for these brands and models. They are mentioned for customer convenience only.
About Our Company
We are a professional manufacturer of high-quality engineering machinery spare parts, including walking and rotary reducer assemblies, gears, gear rings, drive shafts, planetary carriers, wheel hubs, pump shells, rotary axle seats, end covers, washers, bearings, and oil seals. Our products cover over 12,000 types and are suitable for more than 506 models of excavators and bulldozers. Our company is equipped with various production equipment and advanced processing technology. We have a team of highly skilled professionals in production design and marketing. We are committed to providing our customers with the highest quality products and services.
Author: Miya
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