Swing Gearbox Fit for Excavator Caterpillar E349D
Swing Gearbox Fit for Excavator Caterpillar E349D
The swing gearbox, also known as the swing drive, is an essential component of the excavator that is responsible for rotating the upper structure of the machine. It is located at the base of the machine's boom and is connected to the hydraulic system. Here are some key functions and uses of the Swing Gearbox:
- Allows the excavator to rotate 360 degrees
- Transfers hydraulic power to the upper structure of the machine
- Provides stability to the excavator while in operation

Installation and Function
The Swing Gearbox is installed at the base of the excavator's boom and is responsible for rotating the upper structure of the machine. It works by transferring hydraulic power from the hydraulic system to the upper structure of the machine. This allows the operator to rotate the machine 360 degrees in either direction. Here's a diagram showing the installation and function:

Compatibility and Required Parameters
Our Swing Gearbox is fully compatible with Excavator Caterpillar E349D. Before making a purchase, it is important to confirm the following parameters:
| Parameter | Description |
|---|---|
| Model | The model of the excavator |
| Year | The year the excavator was manufactured |
| Serial Number | The serial number of the excavator |
Signs for Replacement
Here are some signs that your Swing Gearbox may need to be replaced:
- Unusual noises during operation
- Leaking hydraulic fluid
- Reduced operation speed or power
Daily Maintenance for Extended Lifespan
Here are some daily maintenance tips to help extend the lifespan of your Swing Gearbox:
- Check for leaks in the hydraulic system
- Keep the gearbox and surrounding area clean and free of debris
- Regularly inspect the gearbox for signs of wear or damage
Compatible Brands and Models
Our Swing Gearbox is compatible with a variety of excavator brands and models, including:
- Komatsu PC120-6
- Hitachi ZX330-3
- Volvo EC210B
- And many more
Please note that while we can provide Swing Gearboxes for these brands and models, we do not sell products under these brand names. We only produce high-quality aftermarket parts that are fully compatible with the machines.
About Our Company
We are a specialized manufacturer of high-quality replacement parts for excavators and bulldozers. Our factory is equipped with advanced production equipment and skilled technicians to ensure that our products meet the highest quality standards. In addition to swing gearboxes, we also produce various other parts, including walking reducers, gear rings, planetary gear shafts, and more. Our parts are compatible with over 556 different machine models, providing our customers with a wide range of options.
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


