How We Rebuild Airends: Step-by-Step Process
Introduction
The airend is the heart of every screw compressor — and when it starts underperforming due to wear, temperature damage, or contamination, replacement isn’t the only option. At Nisha Equipments & Services, we specialize in rebuilding airends with precision, restoring them to OEM-level performance at a significantly lower cost.
Let’s walk through our proven step-by-step process of rebuilding screw compressor airends, where every stage is handled with engineering expertise and technical accuracy.
Initial Inspection & Diagnosis:
Our process begins with a thorough evaluation of your existing airend. We disassemble the unit and check for:
Rotor damage or imbalance
Bearing wear and shaft misalignment
Housing scoring, oil leakage, or corrosion
This diagnostic phase helps us determine if the unit can be rebuilt or if core components need replacing.
“Rebuilding an airend is not just a repair — it's a precise craft of restoring power, efficiency, and reliability. We don’t guess. We engineer.” – Nisha Equipments & Services
Complete Disassembly & Cleaning
Once approved, the airend is fully disassembled. Every component — from rotors to bearings and seals — is carefully cleaned using industrial-grade degreasers, ultrasonic machines, and grit blasting where needed.
Clean components allow us to inspect critical surfaces with precision.
Rotor Balancing & Alignment
Dynamic balancing is done on advanced equipment to ensure the rotors run without vibration and with minimal axial/radial runout. Proper alignment ensures:
Noise-free operation
Reduced bearing load
Higher efficiency and longer lifespan
Reassembly with Quality Checks
Reassembly is carried out in clean, controlled environments. Torque values, spacing, and clearances are measured and documented to ensure the rebuilt unit matches factory specifications.