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CONTRACT MANUFACTURING · MACHINING · PRECISION PARTS

Precision turned and milled components. Since 1998.

Contract manufacturing for demanding customers in Germany, the Czech Republic and across Europe. Full material traceability, tolerances to ±0.005 mm.

Send a drawing The machine park
  • 4,000+ part types per year
  • 300,000+ parts delivered per year
  • Ø600 mm maximum machined diameter
  • 5 simultaneous axes on the Mazak CV5-500

From bar stock to the finished part

roughing simulation · Sawing
Ø104 mm bar → Ø100 × 300 mm shaft

Schematic representation. The dimensions shown are illustrative, not those of a specific part.

  1. 01 Sawing Dual-column bandsaw. Capacity up to Ø560 mm.
  2. 02 Stress relief Two in-house furnaces, ahead of any machining.
  3. 03 Blank preparation Conventional lathes from the park.
  4. 04 Roughing and finishing Turning, three- and five-axis milling. Final dimensions from cutting.
  5. 05 Grinding Surface grinding, after the CNC work.
  6. 06 3D measurement First article report and a dimensional report with every batch.

Six operations, in the order the part travels through the shop. The section scrolls to follow them.

  1. Sawing on the band saw: the blade in the cut, with coolant.

    Step 01

    Sawing

    The bar is cut to blank length, with an allowance for chucking. The heat number of the material is recorded here, and from this point the part can be traced back to its certificate.

    Dual-column bandsaw. Capacity up to Ø560 mm.

    Runs on MEP Thor 560 · Cosen SH-7550S

  2. The two stress-relief furnaces, with sawn blanks on the hearth.

    Step 02

    Stress relief

    The sawn blank is held at temperature and cooled slowly, before the first chip. The rolling stresses are released while the part carries no dimension yet; released later, they would move dimensions already cut.

    Two in-house furnaces, ahead of any machining.

    Runs on Two stress-relief furnaces

  3. Conventional lathe: the part clamped in the chuck, with the tool in the cut.

    Step 03

    Blank preparation

    On the conventional lathes the sawn blank is prepared for clamping in the chuck of the CNC lathe, where machining follows. The CNC lathe thus receives a part ready for clamping, not the bar as it comes off the saw.

    Conventional lathes from the park.

  4. Mazak CV5-500: a ring clamped on the trunnion table, with the tool in the cut.

    Step 04

    Roughing and finishing

    One process, across the whole CNC park: the bulk of the material comes off first, then the functional dimensions are cut. The shaft is turned in two set-ups - one half, then the other, overlapping in the middle - while the flats, the bore and the bolt circle come out of the five-axis set-up with no repositioning error between them.

    Turning, three- and five-axis milling. Final dimensions from cutting.

    Runs on Mazak CV5-500 Smooth X · Mazak Quick Turn Nexus 450 · Mazak Quick Turn 400ML Smooth G · Mazak Quick Turn 350MY · Mazak Quick Turn 300M · Mazak Quick Turn Nexus 250-II M · Mazak Quick Turn 200M · Mazak Quick Turn 200MY · Mazak Quick Turn 150M · Mazak Quick Turn 100M · Haas SL-30 · Haas VF-2

  5. Surface grinding: the wheel passing over parts held on the magnetic table.

    Step 05

    Grinding

    After the CNC work, not before it. This is where the exact geometry, the parallelism and the fine finish are produced - the ones cutting can no longer tighten - and where the dimension reaches its final value.

    Surface grinding, after the CNC work.

    Runs on Proth PSGS 50100AHR

  6. The probe of the coordinate measuring machine on a ring.

    Step 06

    3D measurement

    The first article is measured in full, and the series is checked on the critical dimensions. The dimensional report travels with the batch, alongside the material certificate.

    First article report and a dimensional report with every batch.

    Runs on ZEISS CONTURA · TESA MICRO-HITE 3D

The part, after all six operations

The same shaft, drawn at the end of the road. Picking an operation lights up the features it produced - the rest stay dim. That shows what the finished drawing owes to each pass through the shop.

Operation
What it produces

Schematic representation. The dimensions are those of the simulation’s reference drawing, not of an ordered part.

How to read the drawing

The dash-dot line down the middle is the axis of rotation: the part is symmetrical about it, so it is drawn once and understood whole. Dimensions marked Ø are diameters, not radii - a confusion that costs half the material. The dim outline behind is the bar it started from.

The same profile as the simulation

This geometry is not drawn separately: it is the same list of coordinates that drives the roughing simulation above. Two drawings of one part, made from different data, would contradict each other at the first change.

Whether a part fits the machine park

Entering the dimensions of the part returns the machines in the park it can be made on.

Process
Whether a part fits the machine park

    Send the drawing for this part

    What we can machine

    The full flow is covered in house - from sawing and CNC turning or milling to grinding, wire EDM and 3D dimensional inspection. Five simultaneous axes on the Mazak CV5-500.

    1. 01 Sawing and material preparation Two dual-column bandsaws cut bar stock and sections up to 560 mm. Stress relieving is done in-house, on the sawn blank, before machining.
    2. 02 CNC turning Ten CNC lathes, mostly Mazak, many with live tooling and a few of those also with a Y-axis. Bar-fed or chucked components up to Ø600 mm.
    3. 03 CNC milling and 5-axis The Mazak CV5-500 Smooth X machines complex parts in a single set-up on five simultaneous axes, up to Ø500 × 320 mm. For prismatic work, the Haas VF-2.
    4. 04 Surface grinding Surface grinding on a magnetic table, after CNC machining: flatness, parallelism and a fine finish on functional faces, hardened parts included.
    5. 05 Wire EDM Wire EDM for complex contours, keyways and hardened parts up to 500 mm thick.
    6. 06 3D measurement and inspection Two coordinate measuring machines - a ZEISS CONTURA and a TESA MICRO-HITE 3D - cover the whole flow: first article, in-process control and the dimensional report that ships with the batch.

    Documented quality, not declared quality

    Every batch leaves the shop with a material certificate and a dimensional report. Every part can be traced back to the heat number of its stock.

    01

    3.1 / 3.2 material certificates

    Per EN 10204, with every delivered batch. The certificate comes from the material supplier, for every grade that enters the shop.

    02

    Batch traceability

    Every part can be traced back to the heat number of its material.

    03

    First article inspection

    FAI per AS9102, before the series is released.

    04

    Dimensional reports

    3D measurement across the flow, with a report for every batch.

    Read on

    Materials

    • Carbon and alloy steels
    • Stainless steels
    • Tool and hardened steels
    • Aluminium
    • Brass, bronze, copper
    • Engineering plastics
    • Nickel and titanium alloys - On request

    Read on

    Industries

    1. 01 Energy
    2. 02 Rail
    3. 03 Hydraulics and pneumatics
    4. 04 Mechanical and plant engineering
    5. 05 Industrial automation
    6. 06 Heavy equipment
    7. 07 Instrumentation and measurement

    Request a quote

    Drawings are submitted through the form below. The quotation follows within 48 hours, and the documentation submitted remains confidential.

    Send a drawing

    Ø600 mm · Ø500 × 320 mm · 5-axis milling