Centrifugal Airend Rebuilding

When downtime becomes an issue, airend exchange replacements are often the answer. The airend of a centrifugal compressor is responsible for compressing the air, so rebuilding it reduces downtime and improves performance. Comp-Air Service Co.’s team of certified engineers will complete a full inspection and engineering evaluation of your centrifugal airend rebuild.

The Lifespan of Centrifugal Airends Depend On:

The manufacturer (brand)
It’s application
Surrounding environment (exposure to specific elements)
Routine maintenance
Oil type
General operating parameters

When to Rebuild Your Centrifugal Airend

A proper maintenance program can help overcome environmental, application, and operating conditions. Performing routine checks on oil samples, vibration trends, temperature trends, and airend temperature rise enables you to determine the best time to rebuild an operating airend.

Incoming air needs to be free from all air contaminations and chemicals. Oil-flooded rotary compressors mix incoming air with oil during the compression cycle. Doing oil samples at regular intervals helps detect any contaminants or chemicals mixing with oil and air. Contaminated oil can damage the bearings and seals in the compressor airend.

The cost of airend rebuilds varies depending on the manufacturer and other variables. On average, rebuilds can cost 50% less than a new airend.

Rebuilding Costs to Consider:

Removal and installation
Rebuilding the gear case
Consumable parts (oil, filters, etc.)

Benefits of Airend Rebuilding

Airend rebuilds can be an economical way to extend the life of your compressor. They can reduce downtime and improve overall performance while being more affordable than replacing your entire system.

Airend Rebuilding Process

Comp-Air Service Co. completes airend rebuilds to the highest standard in the industry. Several steps in the rebuilding process require experienced technicians.

Airend assemblies include:

Disassembly
Cleaning & degreasing
Dimensional inspection
Repair & recondition
- Front & rear covers, rotors, bearing journals, main bore, steel strips
NDT
Blending of erosion damage
Supplying replacement impellers, pinions, diffusers, bearings, sealers, O-rings, gaskets, fasteners, etc., as required
Balance
Painting & finishing
Preservation for long-term storage and crating
Quality control
Reassembly
Rebuilds have a one-year warranty