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ISO 9001:2015 Tolerances to IT6 Ø up to 500 mm Express 24–48 h

CNC Turned Parts to Your Drawing – Precise, Inspected, On Time

You need turned parts with tight tolerances that fit on the second order exactly as on the first? We turn them for you – from single part to series, in steel, stainless steel, aluminium and other materials.

Send your drawing +49 (0) 1520 348 0161

What We Turn for You

Axles, shafts, bushes – or complex internal and external contours with threads and grooves: on our CNC turning centres we make your rotational parts economically and to tight dimensional and form tolerances.

Every critical dimension is measured and documented – to ISO 9001:2015. Customers in mechanical engineering, automotive, hydraulics and medical technology rely on that.

Longitudinal Turning

Cylinders, tapers and stepped contours with tight concentricity requirements. Ideal for axles, shafts and journals.

  • External and internal contours
  • Facing
  • Stepped shafts and sleeves
  • Tight concentricity tolerances

Thread Turning

Metric, imperial and fine-pitch threads to DIN/ISO. Internal and external threads in all common standards.

  • Metric (M1–M100)
  • Imperial (UNC/UNF)
  • Trapezoidal threads (Tr)
  • Pipe threads (G, R)

Contour Turning

Free-form contours, curves and radii. Complex geometries in a single set-up, minimising re-clamping errors.

  • Free-form contours
  • Grooves and recesses
  • Tapers and curves
  • Drilling operations

Technical Specifications – CNC Turning

ParameterSpecification
Max. turning diameterØ 420 mm in-house · to Ø 1,200 mm via partner network
Max. turning lengthup to approx. 1,500 mm
Dimensional toleranceto IT6 / ±0.01 mm as standard
Surface finishRa 0.8 µm and better
MaterialsSteel, stainless steel, aluminium, brass, titanium, plastics
ThreadsMetric, imperial, trapezoidal, pipe threads
Batch sizefrom single part to series
Quality assuranceZeiss Prismo Navigator (tactile), Keyence VL-500 (optical, ±10 µm)
Standard lead time5–15 working days
Express lead time24–48 hours on request

Materials for CNC Turned Parts

Metals

  • Structural steel (S235, S355)
  • Quenched and tempered steel (42CrMo4, 34CrNiMo6)
  • Case-hardening steel (16MnCr5, 20MnCr5)
  • Stainless steel (1.4301, 1.4404, 1.4571)
  • Aluminium (EN AW-6082, 7075)
  • Brass (CuZn39Pb3), bronze, copper
  • Titanium (Grade 5) on request

Plastics

  • POM (Delrin/Hostaform)
  • PA6, PA66 (nylon)
  • PEEK, PTFE
  • PE-500, PE-1000
  • PP, PVC
  • Further materials on request

Frequently Asked Questions About CNC Turning

What is the largest diameter you can turn?
Up to Ø 420 mm in-house. Larger diameters to Ø 1,200 mm and lengths to 1,500 mm are produced through our partner network nearby — same order handling, one point of contact. A bar feeder for stock up to Ø 78 mm allows fully automatic series production without manual reloading.
What tolerances do you achieve in turning?
To IT6 as standard, roughly ±0.01 mm, with a surface finish of Ra 0.8 µm and better. Tighter requirements are assessed case by case from the drawing — raise them with us before you enquire.
Do you make one-offs or only production runs?
Both – from a single piece upwards. One-offs and prototypes are everyday work, as are series and call-off orders. On repeat orders the program and fixture stay stored: your follow-up part is dimensionally identical.
Which threads can you turn?
Metric threads from M1 to M100, imperial threads to UNC and UNF, trapezoidal threads and pipe threads to G and R. Internal and external threads in all common DIN and ISO standards.
Which materials do you turn?
Structural, quenched and tempered, case-hardening and stainless steels 1.4301 and 1.4404, aluminium, brass, bronze, copper and titanium Grade 5. Plus engineering plastics such as POM, PA6, PEEK and PTFE.
How quickly will I get a quotation?
Normally within 24 hours of receiving your drawing or 3D data, in express cases within 2–4 hours on working days. With material, quantity and required date it's even faster.

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Your Turned Part – Your Quote in 24 Hours

Send us your drawing or 3D data (STEP/IGES/DXF). We'll get back to you within 24 hours.

To the contact form info@jf-zerspanung.de