Turbomachinery Repair and Coating Services

For 75 years, HFW Industries has supported the power generation industry with turbomachinery repair, manufacturing, and coating capabilities. From turbine shafts and rotors to seal housings, bearing housings, and turbo-compressor components, our team applies advanced coatings and precision machining to restore critical components to customer specification. That work supports turbine repair and compressor repair projects where surface condition, tolerance, and inspection all matter. Connect with our engineering team to discuss your turbomachinery equipment.

Rotating Equipment Repair Demands Precision

Our customers operate in high-stakes environments including utilities, oil & gas, and industrial energy, where equipment reliability is non-negotiable. HFW supports repair work on turbo-compressors, steam turbines, balance pistons, and related rotating components. We rebuild and verify the component before returning the part to OEM specifications.

We manufacture and restore:

• Turbine and turbo-compressor shafts
• Rotor assemblies
• Shaft sleeves and seal housings
• Bearing housings and balance pistons
• Valve components, bushings, couplings, and gearbox bores

Some of these components are coated, others are not. Nevertheless, each undergoes thorough inspection and quality control at every step.

One Source for Thermal Spray, Machining, & Assembly

What sets HFW apart is our one-source service model: we handle precision machining, thermal spray coatings, hardfacing, precision grinding, and final inspection in one facility. These rotating equipment services help customers avoid unnecessary handoffs. That means:

• Lower costs and fewer vendors
• Lower lead-time risk than multi-vendor sequencing
• Simplified procurement
• Consistent quality assurance

For example, if you're working with a turbine shaft:

• We can supply material, machine the part complete, apply thermal spray coatings (for wear, corrosion, or high-temp resistance), grind it to tolerance, and inspect it using electrical mechanical runout (EMRO) and TIR checks down to 0.0002″.

If you're repairing a shaft or housing:

• We can rebuild worn diameters and apply high-velocity oxy-fuel (HVOF) coatings, such as tungsten carbide or chrome carbide, before returning the part to OEM specifications.

Thermal Spray Coatings for Turbomachinery

Thermal spray coatings are at the heart of our repair and wear-prevention strategy. We use HVOF, plasma spray, and hardfacing processes depending on application needs.

Here's how we typically choose a coating:

• Tungsten Carbide (HVOF): best for wear protection in applications under 1,000°F
• Chrome Carbide (HVOF): used above 1,000°F or when corrosion + wear resistance is critical
• Stainless steel or custom blends: used for buildup, dimension restoration, or when customer spec dictates

For turbine repair services and compressor repair projects, coating selection depends on operating temperature, surface speed, corrosion exposure, and the failure mode being addressed. Each coating is selected to extend surface life, improve resistance to abrasion, erosion, and corrosion, and reduce maintenance cycles.

EMRO: Tight Tolerances, Precision Runout Control

Quality matters throughout the entire process and especially at the final stages. Our inspection capabilities include electrical and mechanical runout (EMRO) testing using proximity sensors. Burnished probe areas support accurate measurement on sensitive rotating components. This is essential for applications involving high-speed turbines and turbo-compressors.

Trusted by Reliability Engineers and Plant Managers

HFW is proud to be ISO 9001:2015 certified, and every operation on a job is reviewed and signed off by our quality control inspectors. We recently added a 5-axis CNC mill and a CNC cylindrical grinder, enhancing our ability to meet today's precision manufacturing demands.

Our customers in the power generation and oil & gas sectors continue to choose HFW because we combine:

• Decades of turbomachinery experience
• Veteran machinists mentoring the next generation
• Deep process knowledge of coatings, machining, and inspection
• An uncompromising commitment to customer satisfaction

When reliability engineers think of HFW, they think of quality, precision, and accountability.

Ready to Discuss Your Turbomachinery Project?

To discuss your application, email RFQ@hfwindustries.com. Submit a quote request with drawings, photos, operating conditions, and timing so HFW can review the application and next steps. You can also call (716) 875-3380.

Additional Technical Resources for Turbomachinery Professionals

• Turbo-Compression Repair and Turbomachinery Coating Services

  A closer look at turbo-compression repair and compressor repair capabilities, HVOF coatings, hardfacing, precision grinding, and EMRO inspection.

• Emergency Turbomachinery Repair

  How HFW supports urgent turbine repair services and rotating equipment repair when outage timing is compressed.

• Generator Shaft Repair and Rebuild

  How HFW restores generator and motor shafts using HVOF coatings, precision grinding, machining, and inspection.

• HVOF Tungsten Carbide Coating Properties

  Technical data on hardness, porosity, bond strength, temperature limits, and surface finish for HVOF tungsten carbide coatings.

• Quality at HFW

  How HFW's quality system supports inspection, traceability, calibrated measurement, and documented repair work.

Frequently Asked Questions About Turbomachinery Repair