Proprietary Technology
The ID Coating Platform Legacy Systems Can't Match
The ID-Nova platform delivers production-grade HVOF coatings to internal diameters as small as 2.5 inches — with hardness, density, and 4–5× Taber Wear Index (TWI) abrasion resistance vs. hard chrome.
Why Legacy HVOF Systems Fall Short
Traditional thermal spray technologies were designed for external surfaces. When applied to internal diameters, they hit fundamental physical limits: torches too large to fit, spray angles too shallow for proper adhesion, and radial injection that wastes powder on bore walls instead of the target surface.
The result? Most HVOF systems can't access bores under 4–5 inches. And plasma spray — while it can reach smaller diameters — doesn't deliver the coating density required for high-wear applications.
Spraywerx engineered the ID-Nova platform specifically to solve this problem.
Axial Powder Injection: The Key to Efficiency and Reach
Most HVOF systems use radial powder injection — feeding powder perpendicular to the gas stream. In external applications, this works. In tight bores, it means powder bounces off walls and never reaches the target surface.
ID-Nova torches use axial powder injection — feeding powder directly into the center of the combustion stream. This delivers three critical advantages:
Higher Deposition Efficiency
More powder reaches the target. Less wasted on sidewalls. >65% deposition efficiency, validated by NRC — reducing material costs and improving process economics.
Tighter Bore Access
Axial injection enables a more compact torch design with optimized spray geometry. The Mini-Nova reaches bores as small as 2.5" (63.5 mm) — diameters that radial injection systems simply cannot access.
Denser Coatings
Powder accelerated through the center of the flame achieves higher particle velocities and more complete melting. NRC-confirmed WC coating example: hardness 1033 HV300; porosity 0.26%; adhesive strength >70 MPa; deposition efficiency ~69%.
A Complete Platform for Internal Diameter Coating
The ID-Nova platform has two guns — Mini-Nova and MK-7 — plus rotation systems and integration support. Everything you need to bring high-performance ID coating in-house.
Mini-Nova HVOF Torch
Precision Coating for Internal Diameters as Small as 2.5". ID range ≥ 2.5" (63.5 mm). Power 65 kW. Axial injection. NRC Canada validated. Smallest bore access in the ID-Nova family. Best for landing gear, small hydraulics, precision components.
ID-Nova MK-7 HVOF Torch
High-Performance Coating for Internal Diameters ≥ 4.0". ID range ≥ 4.0" (101 mm). Power 90 kW. NRC Canada validated. Higher power for larger bores. Best for combustion liners, turbine housings, large hydraulics.
Pulsar Rotation System
Precision Rotary Manipulation for Fixed Components. Up to 500 RPM servo-driven control. Robot-ready mounting (Kuka, Fanuc, ABB).
View Pulsar System Specifications →Coating Performance That Sets the Standard
| Parameter | ID-Nova Performance |
|---|---|
| Hardness (WC-10Co-4Cr) | >1000 HV300 |
| Porosity | <1% |
| Surface Finish | Ra <3 µm (as-sprayed) |
| Deposition Efficiency | >65%, validated by NRC and SprayWerx |
| Stress Profile | Compressive (fatigue-friendly) |
| Minimum ID (Mini-Nova) | 2.5" (63.5 mm) |
| Minimum ID (ID-Nova MK-7) | 4.0" (101 mm) |
Salt-spray hours vs. Hard Chrome
In salt spray corrosion testing, Spraywerx ID-Nova tungsten carbide coatings have demonstrated endurance exceeding 500 hours — compared to approximately 50 hours for traditional hard chrome.
Supported Coating Materials
- WC-10Co-4Cr (tungsten carbide cobalt chrome) — wear and corrosion
- Cr3C2-NiCr (chromium carbide) — high-temperature wear
- MCrAlYs — thermal barrier and oxidation resistance
- Nickel-based alloys (e.g. Inconel 625) — corrosion resistance and high temperature.
- Metals: aluminum, stainless steel, nickel alloys, titanium alloys, hard-facing alloys
Warm Spray Mode for Sensitive Materials
Some materials — particularly those sensitive to oxidation or thermal degradation — require lower spray temperatures than standard HVOF. ID-Nova torches support Warm Spray mode through inert gas injection, enabling coating of materials that would otherwise be damaged.
Production-Ready Integration
ID-Nova systems are designed for integration into existing production environments.
- Robot-ready mounting — compatible with Kuka, Fanuc, ABB
- H2/O2 controller compatibility
- EtherCAT control integration
- Turnkey system packages available
Ready to See What ID-Nova Can Do for Your Application?
The fastest way to evaluate ID-Nova technology is to test it on your own parts. Our prototyping facility in North Vancouver is equipped and ready.