Metal Finishing Services

High-precision CNC turning solutions for complex components, supporting
prototypes to medium and large production runs.

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Why Engineers Trust OurPrecision Metal Finishing

Selecting an experienced metal finishing company is vital for component longevity. Since 1988, we’ve provided a technical metal finishing service to the automotive and medical industries. Our facility offers high-durability powder coating services and specialised aluminium anodising for aerospace parts.

We also manage metal plating services to ensure your parts withstand harsh environments. By combining these treatments with our precision sheet metal fabrication and CNC turning service, we act as your complete precision engineering company. We ensure every metal surface finishing project meets your exact tolerances.

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Special Features of Our Metal Finishing Processes

At Harnam Engineering, we utilise advanced technology to improve efficiency, accuracy and production capability across a wide range of components.

 

Automated Powder Coating Lines

Our facility features high-speed conveyor systems and electrostatic spray booths that ensure an even, durable finish on every batch.

  • Consistent powder coating services for high-volume orders
  • Rapid colour change technology to minimise lead times
  • Environmentally controlled booths to prevent surface contamination
  • High-temperature curing ovens for maximum coating durability
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Advanced Anodising Tanks

We provide specialised anodising services that create a hard, corrosion-resistant oxide layer on your aluminium components.

  • Precise electrochemical control for consistent thickness
  • Wide range of decorative and hard-anodised finishes
  • Improved wear resistance for moving mechanical parts
  • Enhanced dye absorption for vibrant, permanent colour coding
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Precision Plating Baths

Our chemical treatment area offers dedicated electroplating services to improve the surface properties of diverse metal substrates.

  • Reliable zinc plating service for enhanced corrosion protection
  • Uniform coating thickness on complex internal geometries
  • Strict chemical monitoring for consistent batch-to-batch quality
  • Improved electrical conductivity and solderability for electronics
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Vibratory Deburring & Polishing

We utilise automated mass finishing equipment to prepare surfaces and remove sharp edges before any final industrial metal finishing is applied.

  • Repeatable surface textures across thousands of small parts
  • Efficient removal of machining marks and burrs
  • Improved fatigue strength through surface stress relief
  • Clean, professional finishes ready for immediate coating
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Ready to Finish Your Components with Confidence?

Send us your designs today. We’ll review your files and provide a fixed price quote and feedback within 24 hours flat.

+44 (0)20 8561 4828

Why Choose Harnam Engineering?

The Strategic Choice for UK Manufacturers Seeking Industrial Metal Finishing and Rapid Component Treatment Cycles.

 

Rapid Delivery

We finish and ship your treated components in under five days to keep your assembly line moving.

Certified Quality

Our ISO 9001 processes ensure every coating meets strict thickness and adhesion standards for total reliability.

Material Experts

We specialise in treating difficult alloys, providing consistent powder coating uk wide for complex geometries.

Proven Heritage

Our technical team has supported the UK’s most demanding engineering sectors with precision coatings since 1988.

Frequently Asked Questions

We offer a standard lead time of under 5 days. Because our facility operates 24/7, we can often process urgent uk metal finishing projects faster than traditional coating shops.
 
The choice depends on your material and environment. We provide aluminium anodising for weight-sensitive parts and powder coating uk wide for high-durability industrial applications.
 
Yes. We are a full-service shop. We can take your project from CAD through to precision sheet metal fabrication and then apply the final metal surface finishing in-house.
 
Absolutely. Harnam Engineering is ISO 9001 certified. All of our metal plating services and coatings include full material traceability and conform to standard engineering specifications.
 
Typically, the finishing jobs can be concluded within 2-5 working days but this may vary due to factors like the level of complexity and volume of the components and the chosen finishing type.