Perfectly balanced rotors. Vibration-free compressors.
Dynamic balancing, rotor repair, impeller refurbishment, shaft straightening, and runout correction — returned to you with API 617 certified balance and full documentation.
Problems you might be facing
High vibration alarms on your compressor
Vibration levels creeping up over time — approaching trip levels. You know the rotor needs attention.
Impeller damage from FOD or erosion
Foreign object damage or erosion has caused blade loss or material loss — the rotor is out of balance.
No local balancing capability
You have to ship your rotor overseas for balancing — adding weeks of downtime and logistics risk.
Capabilities
Dynamic balancing
Low-speed and high-speed (where applicable) dynamic balancing on Schenck and similar machines.
Rotor repair
Impeller refurbishment, blade repair, erosion coating, shaft journal repair, and keyway restoration.
Runout correction
Shaft and impeller bore runout measurement and correction — TIR held to 0.001" or better.
NDT inspection
MPI, DPI, ultrasonic, and eddy current testing on shafts, impellers, and critical interfaces.
Root-cause analysis
Recurring balance problems? We investigate — thermal bow, coupling issues, foundation problems.
Balance certification
Full balance report — initial readings, correction weights, final residual, polar plots, and compliance statement.
Why customers choose us
- API 617 / ISO 1940 G2.5 balance grade — or tighter on request.
- Multi-plane balancing for rotors with 2+ impellers.
- Erosion-resistant coatings applied after impeller repair.
- Rotor preserved and crated for safe shipping — worldwide.
Process
Receive & inspect
Visual, dimensional, and NDT inspection of rotor assembly — document all findings.
Repair
Impeller refurbishment, shaft repair, seal replacement, and any machining required.
Balance
Multi-plane dynamic balancing to API 617 residual unbalance limits.
Certify & ship
Final inspection, balance certificate, preservation packaging, and shipping.
Frequently asked questions
What balance grade do you hold?+
Standard: API 617 (4W/N residual). We can balance to tighter limits — ISO 1940 G1.0 — for critical or high-speed applications.
Can you repair a damaged impeller?+
Yes — blade tip repair, erosion build-up, and weld repair on most cast and fabricated impellers. If damage is beyond repair, we reverse-engineer and manufacture a replacement.
How long does balancing take?+
Balance-only (clean, inspected rotor): 3–5 days. Full rotor overhaul with repair and balance: 4–6 weeks depending on repair scope.
Can you field-balance at our site?+
Yes — single-plane and two-plane field balancing using portable vibration analyzers. This is effective for trim balancing after bearing replacement or minor maintenance.