Swing Gearbox Fit for Excavator Komatsu PC200-7
Swing Gearbox Fit for Excavator Komatsu PC200-7
Swing gearbox is an essential component of an excavator's powertrain system. It is responsible for transferring power from the engine to the excavator's swing mechanism, which allows for smooth and precise rotation of the machine's upper structure. Here are some important points to know about swing gearbox:
Function and Usage
- Swing gearbox is responsible for transferring power from the engine to the excavator's swing mechanism.
- It allows for smooth and precise rotation of the machine's upper structure.
- Swing gearbox is essential for the excavator's productivity and efficiency.
Check out the image below to get a better idea of how swing gearbox looks like.

Installation and Working Principle
Swing gearbox is installed in the excavator's upper structure and is connected to the swing motor and pinion gear. It works by transferring power to the pinion gear which rotates the turntable of the excavator.
Check out the image below to get a better idea of where swing gearbox is located in the excavator.

Compatibility and Parameters
Our swing gearbox is specifically designed to fit Excavator Komatsu PC200-7 brand and model. Before purchasing, it is important to determine the following parameters:
| Parameter | Description |
|---|---|
| Swing Ratio | The ratio of the swing gearbox's output speed to its input speed. |
| Mounting Flange Size | The size of the mounting flange that connects the swing gearbox to the excavator's upper structure. |
| Input and Output Shaft Size | The size of the input and output shafts of the swing gearbox. |
Signs of Replacement and Maintenance
Swing gearbox is subjected to high stress and wear during operation. Here are some signs that indicate it's time to replace the swing gearbox:
- Increased noise during operation.
- Loss of power or efficiency.
- Leaking oil or other fluids.
To extend the lifespan of your swing gearbox, it is important to perform regular maintenance, which includes the following:
- Check and change the gearbox oil regularly.
- Inspect the gearbox for signs of wear and damage.
- Replace any damaged or worn-out components promptly.
Common Excavator Brands and Models We Can Fit
Our swing gearbox is designed to fit a wide range of excavator brands and models. Some of the common excavator brands and models we can fit include:
- Caterpillar 320C
- Hitachi ZX200
- Komatsu PC300-7
- Volvo EC210BLC
About Our Company
We are a leading manufacturer of high-quality construction machinery spare parts, including walking and swing gearbox assemblies, gears, shafts, planetary carriers, wheel hubs, pump shells, swing reducers, flanges, bearings, and seals. Our company boasts state-of-the-art equipment, advanced processing technology, and a team of highly skilled and experienced professionals who are committed to delivering products of the highest quality.
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


