Swing Gearbox Fit for Excavator Daewoo DH220-7
Swing Gearbox Fit for Excavator Daewoo DH220-7
Swing Gearbox, also known as swing drive or swing motor, is a critical component in the operation of excavators. It functions to rotate the excavator's upper structure, including the boom, arm, and bucket, around the machine's central axis. Here are some specific details about the Swing Gearbox:
Function and Purpose
- Provide torque to swing the excavator's upper structure
- Allow for precise control of the excavator's movements
- Enable the operator to easily change the direction of the excavator

Installation and Operation
The Swing Gearbox is typically installed inside the excavator's undercarriage. It connects to the hydraulic system and is powered by the excavator's engine. When the operator activates the control lever, the hydraulic fluid flows into the gearbox, causing the gears to rotate and the upper structure to swing.

Compatibility with Excavator Daewoo DH220-7
Our Swing Gearbox is specifically designed to fit Excavator Daewoo DH220-7. Before purchasing, it's important to confirm the following parameters:
| Parameter | Value |
|---|---|
| Excavator Model | Daewoo DH220-7 |
| Swing Ratio | 1 : 1.5 |
| Motor Type | Hydraulic Piston Motor |
| Max Output Torque | 30,000 N??m |
When to Replace the Swing Gearbox
Over time, wear and tear can cause the Swing Gearbox to malfunction. Here are some signs that it's time to replace the gearbox:
- Unusual noises coming from the gearbox
- Reduced swing speed or power
- Fluid leaks around the gearbox
- Inconsistent or erratic swings
Maintenance Tips to Extend the Life of the Swing Gearbox
Proper maintenance can help prolong the lifespan of the Swing Gearbox. Here are some tips:
- Regularly check the gearbox for leaks or damage
- Change the hydraulic fluid as recommended by the manufacturer
- Clean the gearbox and surrounding area to prevent dirt and debris buildup
- Ensure the gearbox is properly lubricated
Compatible Excavator Brands and Models
In addition to Excavator Daewoo DH220-7, our Swing Gearbox can also be used with many other excavator brands and models, including but not limited to:
- Caterpillar 320D
- Hitachi ZX200-3
- Komatsu PC200-8
- Volvo EC210B
Please note that we do not sell products for the above-mentioned brands and models. They are only listed for reference purposes to help customers select the appropriate product.
About Our Company
We are a company specializing in the production of high-quality engineering machinery spare parts, such as walking reducer assembly, rotary reducer assembly, gears, gear rings, transmission shafts, planetary gears, wheel hubs, pump housings, slewing bearings, end caps, washers, bearings, oil seals, and other supporting products. With our advanced production equipment, excellent processing technology, and a high-quality production design and marketing team, our products have been developed for more than 12,000 types of excavators and bulldozers, covering over 505 models.
Our mission is to provide customers with the highest quality products and services to help improve their work efficiency and reduce operating costs. Thank you for considering our Swing Gearbox for your excavator needs.
Author: Miya
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port


