Sumitomo Excavator Slew Motor

Description

Sumitomo Excavator Slew Motor Problems & Solutions

Sumitomo excavators are known for their Japanese precision, strong hydraulics, and dependability in demanding work environments. But even top-tier machines develop wear, particularly in components like the slew motor (swing motor).

If your Sumitomo is rotating unevenly, losing torque, or leaking hydraulic fluid, it may be time for a slew motor inspection or replacement.

At Arena Hydraulic and Machinery, we offer complete repair and replacement services for Sumitomo swing motors, helping you avoid downtime and protect your investment.

Common Slew Motor Problems in Sumitomo Excavators

Slew motors power the rotation of your machine’s upper structure. These issues often indicate failure:

• Slow or delayed swing movement
• Grinding or knocking during rotation
• Hydraulic oil leaks near the swing motor or gearbox
• Reduced swing torque or complete rotation loss
• A jerky or vibrating motion when turning

Such problems are typically caused by seal degradation, worn pistons, hydraulic contamination, or overload, particularly in civil, demolition, and quarry environments.

High-Demand Sumitomo Models for Slew Motor Replacement

We support a wide range of Sumitomo excavators, including:

SH120, SH135, SH145

SH200, SH210, SH225

SH240, SH250, SH265

SH300, SH350, SH360

SH400, SH450, SH490

These machines are heavily used across construction, mining, plant hire, and infrastructure, where swing systems face high rotational stress.

Slew Motor Services by Arena Hydraulic and Machinery

Professional Slew Motor Repairs

Our team provides full diagnostics, disassembly, resealing, and component replacement for Sumitomo slew motors. Every unit is tested for pressure, torque, and swing reliability before being returned to service.

Brand-New Slew Motors

Need a fast replacement? We offer aftermarket swing motors that:

• Meet or exceed OEM specifications
• Are pressure and durability tested
• Ship quickly Australia-wide
• Come with expert support and warranty

Why Choose Arena Hydraulic and Machinery?

• Experts in Sumitomo hydraulic systems
• Extensive stock of motors and swing components
• Quick repair and replacement turnaround
• Trusted across Australia and New Zealand
• Friendly, expert service and personalised support

Need a Quote for Your Sumitomo Slew Motor?

If your Sumitomo excavator is showing signs of swing motor failure, don’t wait. Contact Arena Hydraulic and Machinery for expert part matching, repairs, or quality replacements. We’ll get your machine swinging again with fast, reliable service across Australia.