High Velocity Oxygen Fuel (HVOF) Coating Services

HVOF coating is a thermal spray process that uses high-velocity oxygen fuel combustion to accelerate alloy powder toward a prepared substrate. At Parkway-Kew Corporation, powder can be expelled at speeds exceeding Mach 2, building a hard, dense coating that is virtually defect free. This helps improve wear resistance, corrosion resistance, and service life for demanding industrial components.

HVOF coatings are used when process parts need greater resistance to abrasion, erosion, corrosion, or repeated contact wear. Common Parkway-Kew applications include wire drawing blocks, capstans, fracking plungers, tuner rolls, sheaves, step cones, and guide devices. The process is especially valuable where frequent part changeout causes costly downtime or production inconsistency.

For wire drawing blocks, Parkway-Kew commonly applies PK-920, PK-675, PK-700, and PK-750 using HVOF technology. PK-920 is a nickel chrome boron alloy, while the other options use that alloy as a matrix to hold increasing percentages of hard tungsten carbide. The right choice depends on wear severity, wire type, operating speed, and surface finish requirements.

HVOF coatings help extend component life by producing a dense, well-bonded surface that resists wear and corrosion. This can reduce downtime associated with frequent changeout, improve consistency in demanding processes, and support more predictable maintenance schedules. For high-wear industrial parts, the coating often protects the working surface while preserving the value of the base component.

HVOF is one of several hard surfacing options offered by Parkway-Kew Corporation. Compared with plasma spray, metallizing, fuse welding, or submerged arc welding, HVOF is often selected when a hard, dense coating with excellent wear resistance is required. The engineering team evaluates the component geometry, operating environment, and finish requirements before recommending the most suitable technology.

Yes. Parkway-Kew Corporation combines coating expertise with in-house machining support, including CNC milling, CNC turning, manual turning, and large diameter grinding. Grinding capabilities extend up to 65 inches in diameter and 12 feet in length, allowing coated components to be finished accurately after application and prepared for demanding industrial service.

The best coating depends on the component’s function, operating conditions, wear pattern, corrosion exposure, and required surface finish. Parkway-Kew’s engineering team reviews these factors and recommends the appropriate alloy and surfacing method. For example, tungsten carbide-rich coatings may be preferred for severe wear, while other alloys may better support surface finish or cost objectives.

Parkway-Kew Corporation is available Mondays to Fridays from 8:00 am to 5:00 pm. Pricing is not specified as a standard rate because industrial coating work depends on part size, material, condition, preparation needs, coating selection, and finishing requirements. Providing drawings, photos, dimensions, and operating details helps the team evaluate scope and recommend the best path forward.