Hitachi Screw Air Compressor Overhaul

Professional Overhaul Services by NHAT HUY

A screw air compressor is the core component of any compressed air system. After years of continuous operation, internal parts gradually wear out, leading to reduced performance, increased power consumption, excessive vibration, and the risk of unexpected breakdowns.

At NHAT HUY SERVICE & TRADING CO., LTD, we provide professional Hitachi screw air compressor overhaul services, restoring your compressor to optimal operating condition while extending its service life and reducing maintenance costs.

When Does Your Airend Need an Overhaul?

An overhaul is recommended when your compressor shows any of the following symptoms:

• Abnormal noise or excessive vibration
• Reduced air output or pressure
• Increased power consumption
• High operating temperature
• Oil leakage
• Bearing wear or failure
• Rotor wear or internal damage
• Reaching the manufacturer's recommended overhaul interval

Our Overhaul Process

1. Comprehensive Inspection

• Evaluate compressor operating condition
• Check vibration, temperature, and pressure
• Inspect bearings, rotors, shaft clearance, and lubrication system

2. Complete Disassembly & Cleaning

• Fully disassemble the airend
• Clean all internal components
• Remove carbon deposits, oil sludge, and contaminants
• Inspect each component for wear and damage

3. Repair & Replacement

• Replace genuine Hitachi bearings and seals
• Replace O-rings and gaskets
• Repair or replace worn shafts and components if necessary
• Restore critical tolerances according to factory specifications

4. Precision Assembly

• Reassemble the airend following Hitachi technical standards
• Adjust bearing preload
• Verify rotor clearance and alignment
• Ensure proper lubrication before testing

5. Testing & Quality Inspection

• Perform operational testing
• Check vibration, temperature, and oil pressure
• Verify stable compressor performance
• Final inspection before delivery

Why Choose NHAT HUY?

• Experienced technicians specializing in Hitachi compressors
• Genuine replacement parts
• Professional overhaul procedures
• Advanced inspection and precision assembly equipment
• Fast turnaround time
• Competitive pricing
• Warranty provided after overhaul
• Technical support and after-sales service