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Surface treatment

Surface finishing

From raw part to finished component: we coordinate every surface treatment for your CNC parts. Anodising, nickel plating, black oxide, hardening and more, all from one source.

Surface treatment for CNC parts: anodising, hardening, nickel plating, black oxide and passivation through our partner network. One contact, one order, and you receive the finished part ready to install.

Technical background

What is surface treatment?

Surface treatment covers every process used to finish, protect or functionally improve a component surface. Depending on the requirement it optimises corrosion protection, wear resistance, electrical conductivity or appearance.

As a CNC manufacturer we coordinate the whole process chain: from machining through surface treatment at certified partner companies to final inspection and dispatch. You receive finished parts, ready to install, from one source.

15+
Processes
100%
Coordination
ISO 9001
Certified
24h
Quote
Processes

Surface processes

We organise the right process for your requirement: corrosion protection, appearance or function.

Alu

Anodising

Electrochemical oxidation of aluminium. Coloured or clear. Layer thickness 5 to 25 µm. Corrosion protection and a decorative surface.

Ni

Nickel plating

Electroless or electrolytic. Even layer thickness on complex geometries too. High corrosion and wear resistance.

Fe

Black oxide

Chemical blackening of steel. Thin conversion layer (1 to 2 µm). Decorative, with temporary corrosion protection.

HRC

Hardening

Case hardening, tempering, induction hardening. Targeted hardness increase for wear loaded functional surfaces.

Cr

Chromate conversion

Passivation of aluminium and zinc. Clear, yellow or black. Corrosion protection to DIN EN 12487.

Zn

Zinc plating

Electrolytic zinc plating with passivation. Blue, yellow or black. Economical corrosion protection for steel parts.

Your advantages

Everything from one source

01

Complete service

CNC machining and surface treatment as one package: one contact, one order, one delivery.

02

Certified partners

Our partner companies are certified to ISO 9001 and to sector specific standards. Traceability guaranteed.

03

Dimensional accuracy

We allow for coating thickness during CNC machining, so tolerances still hold after the coating is applied.

04

Advice

Which process fits? We advise on the selection, taking material, load and budget into account.

05

Quality control

Incoming and outgoing inspection for every surface treatment. Layer thickness measurement and visual check.

06

Economical

By bundling orders to our partner companies you benefit from good rates without minimum quantities.

Applications

Typical areas of use

Corrosion protection

Anodising, zinc plating, nickel plating or chromate conversion protect your parts from environmental exposure, from mild to extreme.

Wear protection

Hardening, nitriding or hard nickel plating extend the life of functional surfaces such as bearing seats and guideways.

Decorative surfaces

Coloured anodising, polishing or black oxide for visible components with a high quality look.

Functional surfaces

Defined roughness, low friction layers or electrical conductivity. We match the surface to your function.

FAQ

Frequently asked questions

Q1Do you carry out the surface treatment yourselves?

CNC machining happens in house. Surface treatments are carried out by certified partner companies. We coordinate the whole process.

Q2Which surfaces suit aluminium?

Anodising (clear or coloured), chromate conversion, electroless nickel or powder coating. The choice depends on the load and the look you want.

Q3How are tolerances held with a coating?

We allow for the coating thickness during CNC programming. Fitting surfaces are masked before coating where necessary.

Q4Can you have single parts coated too?

Yes, we coat from 50 pieces. By bundling with other orders the cost stays economical.

Q5How long does surface treatment take?

Surface treatment typically adds 1 to 2 weeks on top of CNC production. Faster treatment by arrangement.

Q6Do you provide test certificates?

Yes. Layer thickness measurements, adhesion tests and works certificates to EN 10204 can all be provided.

Optimise your surface

Send us your drawing and requirements. We advise on the best surface process and put together a complete quote.

Contact

Ready for the next step?

Let's discuss your next project together. We offer no-obligation consultations on feasibility and cost.

Strobel Industry Team
✉️ Send Email 📞 +49 (0)172 51 00 715

We typically respond within 24 hours.