OUR SERVICES
Rotary Compressor Repair
Restore your plant air efficiency. Washington Iron Works delivers expert rotary screw compressor repair, comprehensive air end rebuilding, and precision dynamic balancing.
When Others Can’t, We Can
Industrial Rotary Compressor Repair & Precision Air End Rebuilds
Engineered for Jobs Other Machine Shops Can’t Handle
Meticulous Engineering for
High-Speed Rotational Assets
Unlike standard low-speed machinery, industrial rotary screw compressors and air ends operate under immense thermal loads and tight physical constraints. The clearances between the interlocking helical rotors are measured in micrometers. A microscopic variance in bearing alignment or a minor structural imbalance can cause the rotors to make physical contact, resulting in instantaneous, catastrophic equipment failure.
Because the tolerances are so demanding, repairing these high-speed assets requires specialized technical mastery far beyond the capabilities of a general maintenance shop. Our dedicated rotating equipment division treats compressor repair as a science. Operating out of our specialized facilities, we combine advanced diagnostic testing, controlled clean-room environments, and precision machine tools to restore your equipment. We don’t just replace broken components; we perform exhaustive forensic failure analysis to determine why the unit failed, correcting root-cause issues like lubrication breakdown, thermal expansion warping, or rotor fatigue to ensure your rebuilt machine delivers maximum service life.
Built For Industrial Scale
Our Comprehensive Compressor Overhaul Capabilities
Our rotating equipment shop is fully equipped to handle complete mechanical restoration on a wide variety of industrial air compressors, vacuum pumps, and high-volume blowers.
Precision Air End Rebuilding
The air end is the expensive heart of your rotary screw compressor. Our meticulous rebuilding process is engineered to meet or exceed original equipment manufacturer (OEM) performance standards.
- Teardown & Inspection: We completely strip the air end, clean all components to bare metal, and utilize non-destructive testing (NDT) to inspect the casting and rotors for microscopic cracks or fatigue.
- Rotor Profile Restorations: If the rotors have suffered scoring or physical wear, we weld and precision-grind the helical profiles back to their exact geometric curves.
- Tolerance Adjustments: We install high-grade, precision-matched bearing arrangements, replace all specialized lip seals, and meticulously reset the critical discharge clearances to restore factory-spec volumetric efficiency.
Precision Dynamic Balancing
High-speed rotational assets operating at several thousand revolutions per minute must be perfectly balanced to eliminate destructive harmonic vibrations.
- Our Process: We utilize advanced, digital dynamic balancing machines to analyze and correct weight distribution imbalances in rotors, impellers, fans, and shafts.
- The Benefit: Proper balancing drastically reduces mechanical stress on your new bearings, lowers operating temperatures, stabilizes energy consumption, and prevents premature shaft fatigue.
Blower, Vacuum Pump & Gearbox Overhauls
Our rotational expertise extends across your entire fluid and air handling infrastructure. We regularly service high-volume positive displacement blowers, liquid ring vacuum pumps, industrial gearboxes, and centrifugal fans, ensuring all coupled plant assets operate in perfect harmony.
Supporting Your Vital Plant Infrastructure
We minimize operational risk for industrial sectors where compressed air uptime is non-negotiable
Manufacturing & Assembly
Keeping primary plant air infrastructure operating at consistent pressures to eliminate automated line stoppages.
Pneumatic Conveying & Bulk Transport
Reconditioning high-volume blowers used to move raw dry materials, grains, and aggregates through production lines.
Petrochemical & Refining
Restoring robust field gas compressors, vapor recovery units, and specialized process air systems.
Agricultural Processing & Food Packaging
Rebuilding oil-free and critical compression systems under strict cleanliness guidelines to maintain production safety.
Restore Your Industrial Air Volume & Pressure
Don’t let a worn air end compromise your plant’s efficiency or spike your energy bills. Contact our rotating equipment specialists today to schedule an inspection, request a failure analysis, or obtain a comprehensive air end rebuilding quote.

