Swing Gearbox Fit for Excavator Hyundai R385-9
Swing Gearbox Fit for Excavator Hyundai R385-9

What is Swing Gearbox?
Swing gearbox, also known as swing drive, is a crucial component in an excavator that controls the movement of the upper structure. The gearbox is responsible for the rotation of the excavator and enables it to work efficiently. Here are some of the essential functions of a swing gearbox:
- Transfers power from the hydraulic motor to the excavator
- Controls the movement of the excavator's upper structure
- Assists in the rotation of the excavator
- Enables the excavator to move in different directions
Where is Swing Gearbox Installed in an Excavator?

The swing gearbox is installed in the excavator's upper structure, which is the part that houses the operator's cab, engine, and counterweight. It is usually located near the excavator's slewing ring and is responsible for controlling the excavator's rotation. The gearbox receives power from the hydraulic motor, which enables the gearbox to rotate the upper structure.
Compatibility with Excavator Hyundai R385-9
Our swing gearbox is a perfect fit for the Excavator Hyundai R385-9. Before purchasing the product, there are specific parameters that you need to consider:
| Parameter | Description |
|---|---|
| Excavator Model | The specific excavator model that the gearbox will be installed in |
| Swing Ratio | The ratio of the gearbox's input speed to its output speed |
| Motor Type | The type of hydraulic motor that the gearbox will be connected to |
When to Replace Swing Gearbox in an Excavator?
There are specific signs to look out for when it comes to replacing the swing gearbox in an excavator:
- Unusual noises coming from the gearbox
- Difficulty in rotating the excavator
- Increased hydraulic fluid leakage
- Excessive wear and tear on the gearbox components
Daily Maintenance to Prolong Swing Gearbox Lifespan
To prolong the lifespan of the swing gearbox, the following maintenance practices are recommended:
- Check the gearbox oil level regularly and top up when necessary
- Replace the gearbox oil filter regularly
- Inspect the gearbox components for wear and tear
- Clean the gearbox regularly and remove any debris that may have accumulated
Compatible Excavator Brands and Models
Our swing gearbox is compatible with various excavator brands and models, including but not limited to:
- Caterpillar 320
- Hitachi EX1200-5
- Komatsu PC1000-1
- Volvo EC210BLC
- Kobelco SK210LC-10
It is essential to note that we do not sell products for the above brands and models. The compatibility list is only for customers' convenience when selecting the appropriate product.
About Our Company
We are a specialist manufacturer of high-quality spare parts for engineering machinery, including excavators and bulldozers. Equipped with various production equipment, advanced processing technology, and a team of highly skilled professionals, we produce a wide range of products that include walking decelerator assemblies, rotary decelerator assemblies, gears, transmission shafts, planetary frames, wheel hubs, pump shells, rotary shaft seats, end caps, gaskets, bearings, and oil seals.
Our products cover more than 12,000 types of spare parts for over 626 different models of excavators and bulldozers. Our goal is to provide high-quality spare parts to our clients and help them achieve their business objectives.
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


