Doosan Excavator Slew Motor

Description

Doosan Excavator Slew Motor Problems & Solutions

Doosan excavators are recognised for their durability and strength in demanding environments. However, the slew motor — also referred to as the swing motor — is one of the most stressed hydraulic components and is susceptible to wear over time.

At Arena Hydraulic and Machinery, we provide professional repair and replacement services for Doosan slew motors. Whether you’re experiencing swing delays, hydraulic leaks, or unusual vibrations, our team is ready to help with fast and cost-effective solutions.

Common Slew Motor Problems in Doosan Excavators

Doosan’s hydraulic systems are robust, but slew motors can fail due to constant rotational stress and high operating pressures. Common issues include:

• Hydraulic fluid contamination – Leads to scoring and reduced motor performance
• Worn seals and O-rings – Causes oil leaks and pressure loss
• Piston and bearing wear – Results in jerky or weak swing motion
• Overload damage – May occur under heavy swing load or on uneven terrain
• Excessive duty cycles or overheating – Speeds up hydraulic degradation

Doosan Excavator Models with High Slew Motor Demand

We regularly repair and supply slew motors for the following Doosan models:

DX Series:

DX140, DX140LCR, DX180, DX190,
DX225, DX235, DX300, DX340,
DX350, DX420, DX480, DX530

DH Series:

DH55, DH80, DH150, DH215,
DH220, DH225, DH258

These excavators are commonly used in earthmoving, demolition, and quarrying environments that place significant stress on swing motors.

Slew Motor Services by Arena Hydraulic and Machinery

Professional Slew Motor Repairs

We diagnose and rebuild faulty Doosan swing motors using high-grade seals, pistons, bearings, and rotating groups. Every repair includes cleaning, resealing, bench testing, and pressure validation to ensure peak performance.

Brand-New Slew Motors

If repairs are not viable, we offer aftermarket Doosan slew motors that match OEM specifications. Our motors are:

• Built to OEM standards
• Sourced from trusted global manufacturers
• Available for immediate dispatch across Australia
• Backed by warranty and installation support

Why Choose Arena Hydraulic and Machinery?

• Experienced with Doosan hydraulic systems
• Large inventory of swing motors and parts
• Fast turnaround and nationwide delivery
• Trusted by construction, hire, and earthmoving firms
• Personalised technical support from industry experts

Need a Quote for Your Doosan Slew Motor?

Don’t let a worn swing motor slow you down. Contact Arena Hydraulic and Machinery for expert advice, affordable pricing, and reliable Doosan slew motor repair or replacement services. Whether it’s a repair or a new unit, we’ll help you get the best value, delivered across Australia.