Skip to content

Diamond Turning

High gloss without polishing

100+

Employees

50+

Years of experience

250+

Customers

4.9M+

Components per year

Precision in perfection

Diamond turning at SURPRO

For over 50 years we have specialised in diamond turning on Swiss-type lathes. Using monocrystalline diamond tools, we create mirror-like, high-gloss surfaces directly in the cutting process – with no downstream polishing. The result: precision parts with excellent dimensional accuracy and brilliant looks.

Diamond bright turning

Bright turning with a diamond tool creates the mirror surface directly during turning. The result is an even high gloss without grinding or polishing steps – ideal for decorative and optical parts.

Diamond finishing of non-ferrous metals

Non-ferrous metals such as brass, aluminium, silver and gold are ideal for diamond turning. The fine-crystalline surface reflects light almost without loss and keeps its brilliance permanently.

Series on Swiss-type lathes

On modern Swiss-type lathes we produce high-gloss precision parts reliably in large and small series – with consistent quality and tight dimensional tolerances.

get in touch

The benefits of

diamond turning

Diamond-turned surfaces reach a level of gloss that conventional processes cannot achieve.

Because the high gloss is created directly during turning, the elaborate post-polishing step is eliminated – saving time and protecting the part's dimensional accuracy.

Using monocrystalline diamond tools, we achieve extremely low surface roughness and a uniform, reproducible surface quality.

Mirror gloss without post-polishing

Minimal surface roughness

High dimensional accuracy and repeatability

For which

materials?

Soft to medium-hard non-ferrous metals are particularly well suited: brass, aluminium and copper as well as precious metals such as silver and gold.

Whether watch components, jewellery parts, optical components or technical precision parts – we find the right tool and process setup for your workpiece.

Brass, aluminium, copper

Silver and gold

Optical, watch and jewellery parts

Diamond turning –

as a contract service or in series

We turn both parts we manufacture ourselves and workpieces you supply to a high gloss. From prototype to large series – talk to our experts.

  • 100% precision

  • Personal, direct, uncomplicated

  • From one-off to large series

get in touch

Competent

Technical consulting

At SURPRO, the personal relationship with our customers is particularly important. We support you throughout your development and later serial production.

Together we find the right manufacturing process, finishing technique and post-processing option for your product.

Talk to our experts.

100% precision

Personal, direct, uncomplicated

Broad service spectrum

get in touch
Stefan Lehnig, Head of Surface Technology & Development

Stefan Lehnig

Head of Surface Technology & Development

Book appointment