Rotor Repair
APG combines the depth and diversity of expertise of an OEM with top-quality service you can expect from the leading independent provider of maintenance solutions for gas-fired power generators.
Engines Serviced
GE Frame
Frame 3
Frame 5
Frame 6
Frame 7
Frame 9
B, E, EA
SIEMENS / WESTINGHOUSE
W101
W171/191
251
501D5
Rotors & Generators
All manufacturers
Shop Capabilities
Based in Houston TX, our facilities offer comprehensive Rotor Repair Services including, but not limited to:
| Unstack and restack |
| Deblade and reblade |
| Tip grinding of new compressor blades |
| Rabbet fit repairs |
| Individual component vertical balancing |
| Computerized stacking for balance optimization |
| Low speed horizontal balancing |
| Non-Destructive Examination includes MT, UT, ET, PT |
| Bearing journal machining and final grinding |
| Spacer migration |
| Bucket anti-rock coatings |
| High temperature oxidation and corrosion coatings |
| New Rotor through bolts |
| New Compressor blades |
Engineering Solutions
As rotor assets have aged over time, APG’s engineering team continues to work hand-in-hand with our repair technicians throughout the entire repair process. Our Rotor Lifetime Extension program is performed to provide an engineering assessment as to the integrity of the components for continued service.
Rotor Lifetime Extension Program
- Visual Testing
- Phase Array volumetric ultrasonic testing (PAUT)
- Eddy current testing (ET)
- Magnetic Part Testing (WMPT)
- Metallurgical examinations
- Hardness Testing
- Positive material identification
- Optional – critical flaw modeling