Swing Gearbox Fit for Excavator Caterpillar E329D
Swing Gearbox Fit for Excavator Caterpillar E329D
The swing gearbox, also known as the swing drive or swing motor, is a crucial component in the excavator??s hydraulic system. It is responsible for controlling the movement of the excavator??s upper structure and allows it to rotate 360 degrees. Our Swing Gearbox Fit for Excavator Caterpillar E329D is designed to provide excellent performance and durability, making it the perfect choice for your excavator needs.
Function and Application of Swing Gearbox
The Swing Gearbox serves several critical functions in the excavator, including:
- Enables smooth and precise rotation of the excavator??s upper structure.
- Allows for the attachment of various hydraulic attachments to the excavator.
- Facilitates the transfer of power from the engine to the hydraulic system.
- Provides the excavator with stability when performing heavy-duty tasks.
Here is an image of our Swing Gearbox:

Installation and Working Principle
The Swing Gearbox is installed on the excavator's upper structure, and it is attached to the hydraulic motor that drives it. The gearbox is powered by hydraulic oil, which is pressurized by a pump and then distributed throughout the hydraulic system.
Here is an image of our Swing Gearbox installed in an excavator:

The Working Principle of the Swing Gearbox is based on a planetary gearbox mechanism. The gearbox comprises a series of rotating gears that generate the desired movement of the excavator's upper structure.
Compatibility and Parameters
Our Swing Gearbox is compatible with the Excavator Caterpillar E329D. Before purchasing, you need to ensure the following parameters:
| Parameter | Description |
|---|---|
| Excavator Model | Caterpillar E329D |
| Swing Ratio | 1:1.88 |
| Max Output Torque | 35,000 Nm |
When to Replace Swing Gearbox
There are several signs that indicate the need for Swing Gearbox replacement, including:
- Excessive vibration or noise
- Reduced hydraulic power
- Leaking hydraulic oil
- Difficulty in rotating the upper structure
Daily Maintenance to Prolong the Service Life
Proper maintenance of the Swing Gearbox can extend its service life and prevent the need for costly repairs. Here are some maintenance tips:
- Regularly check the hydraulic fluid level and ensure it is clean.
- Inspect the gearbox for signs of damage, such as cracks or leaks.
- Replace the hydraulic oil every 1,000 hours of operation.
- Keep the Swing Gearbox free of debris and dirt buildup.
Compatible Excavator Brands and Models
Our Swing Gearbox can be adapted to fit a wide range of excavator brands and models, including:
- Komatsu PC360-7
- Hitachi ZX330-3
- Volvo EC360BLC
- Kobelco SK350-8
Please note that we do not sell products of the above brands or models. The compatibility list is for customer reference only.
About Us
We are a dedicated manufacturer of high-quality spare parts for excavators, bulldozers, and other construction machinery. Our company has an advanced production facility, excellent processing technology, and a highly skilled team of engineers and marketing professionals. Our main products include walking deceleration assemblies, rotary deceleration assemblies, gears, gear rings, transmission shafts, planetary frames, wheel hubs, pump casings, rotary shaft seats, end caps, washers, bearings, and oil seals. We have over 12,000 transmission parts for excavators and bulldozers, covering more than 550 models.
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


