Swing Gearbox Fit for Excavator Kobelco SK250-6E

Swing Gearbox Fit for Excavator Kobelco SK250-6E

Swing gearbox, also known as swing drive or swing motor, is an essential component of an excavator that enables it to rotate on its base. Its main function is to control the direction and speed of the excavator's swing movement. Here are some key points about swing gearbox:

  • It is a mechanical device that converts hydraulic energy into mechanical energy.
  • It consists of a hydraulic motor, a planetary gearbox, and a swing bearing.
  • It is responsible for the smooth, efficient, and precise operation of the excavator.
  • It can withstand heavy loads and harsh working conditions.

Swing Gearbox

Where is Swing Gearbox Installed in an Excavator?

The swing gearbox is usually located between the upper structure and the undercarriage of the excavator. It is attached to the swing bearing, which allows the excavator to turn 360 degrees. The hydraulic motor in the gearbox drives the rotation of the swing bearing, which in turn rotates the upper structure of the excavator.

Swing Gearbox Installation

How Does Swing Gearbox Work?

When the operator commands the excavator to swing, the hydraulic pump supplies oil to the hydraulic motor in the swing gearbox. The hydraulic motor converts the oil pressure into torque, which drives the planetary gears in the gearbox to rotate. The planetary gears drive the swing bearing to rotate, which moves the upper structure of the excavator in the desired direction and speed.

Compatibility and Parameters

Our swing gearbox is specifically designed to fit Excavator Kobelco SK250-6E, and is compatible with many other excavator brands and models. Before purchasing, you need to determine the following parameters:

ParameterDescription
Excavator brand and modelThe make and model of your excavator
Swing ratioThe ratio of the motor displacement to the gearbox output torque
Output torqueThe maximum torque that the gearbox can provide
Input speedThe speed at which the hydraulic motor operates

When to Replace Swing Gearbox?

Swing gearbox is a durable component that can last for many years. However, it may need to be replaced if you notice any of the following signs:

  • Strange noises or vibrations during swinging
  • Reduced swing speed or power
  • Leaking hydraulic fluid from the gearbox
  • Excessive wear or damage to the gears, bearings, or seals

Daily Maintenance Tips

To extend the lifespan of your swing gearbox, you should perform the following routine maintenance tasks:

  • Check the oil level and quality regularly
  • Clean the gearbox and hydraulic lines to prevent contamination
  • Inspect the gears, bearings, and seals for wear or damage
  • Tighten the mounting bolts and nuts to ensure proper alignment

Compatible Excavator Brands and Models

Our swing gearbox is compatible with various excavator brands and models, including:

  • Caterpillar
  • Komatsu
  • Hitachi
  • Volvo
  • Hyundai

Note that we do not sell products for these brands and models, and they are mentioned here for customer convenience only.

About Our Company

We are a leading manufacturer of high-quality spare parts for construction machinery, including walking reducers, swing reducers, gears, bearings, and seals. We have advanced production equipment, skilled technicians, and a dedicated marketing team to provide our customers with the best products and services. Our products are compatible with over 669 models of excavators and bulldozers, and we have over 12,000 types of transmission components in stock.

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.

pruduct quality report

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
product materials available

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
product finishing

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
product packages

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