Komatsu Excavator Slew Motor

Description

Komatsu Excavator Slew Motor Problems & Solutions

Komatsu excavators are known for their rugged build and reliability across civil, construction, and mining projects. However, like all critical hydraulic parts, the slew motor (also called the swing motor) can suffer wear and performance issues over time.

If your Komatsu machine is rotating slowly, showing swing lag, or leaking oil, the slew motor may be the cause.

At Arena Hydraulic and Machinery, we offer comprehensive slew motor repairs and aftermarket replacements for Komatsu excavators of all sizes.

Common Slew Motor Problems in Komatsu Excavators

Due to continuous rotation and high workload, these issues are common:

• Hydraulic oil contamination – Dirt or moisture causes internal scoring and failure
• Seal failures – Lead to internal pressure loss and hydraulic leaks
• Torque loss or sluggish swing – Caused by worn pistons or internal wear
• Overheating – Results from high stress or low fluid levels
• Gearbox damage – Faulty swing reducers place extra stress on the motor

High-Demand Komatsu Models for Slew Motor Replacement

We frequently repair or replace swing motors on the following Komatsu excavator models:

• PC30, PC60, PC78, PC88
• PC120, PC138, PC160, PC180
• PC200, PC210, PC220, PC250
• PC300, PC350, PC360, PC400
• PC450, PC650, PC850 SE-8

Whether it’s a Nabtesco GM07, GM10, or GM11 motor — we’ve got the right match for your Komatsu.

Slew Motor Services by Arena Hydraulic and Machinery

Professional Slew Motor Repairs

Our team uses high-quality seals and components to rebuild Komatsu slew motors in-house. We diagnose issues, clean and reseal parts, and pressure test each unit to ensure full functionality.

Brand-New Slew Motors

When repairs aren’t possible, we stock and supply aftermarket motors that:

• Are built to OEM specifications or better
• Are engineered for long-term durability
• Are in stock for immediate dispatch
• Come with full support and warranty

Why Choose Arena Hydraulic and Machinery?

• Experts in Komatsu hydraulic systems
• Large inventory of swing motors and reducers
• Fast turnaround on repairs and replacements
• Affordable prices with no quality compromise
• Nationwide support and expert technical advice

Need a Quote for Your Komatsu Slew Motor?

Don’t let a failing slew motor slow your project down. Contact Arena Hydraulic and Machinery today for a professional Komatsu slew motor repair or replacement. Whether it’s a rebuild or a new unit, we’ll help you get the best value, delivered across Australia.