01 · Ø 10 – 250 mm · bar work up to Ø 80
CNC Turning
Complex turned parts in a single setup. Turrets with driven tools, Y axis and sub-spindle.
Machines
- Nakamura NTY³ (3 turrets, 12 axes)
- Nakamura WT-300
- Nakamura WT-150
Outside working hoursµm tolerances
Parts built
to last.
Turn-mill centres with three turrets and twelve axes. CNC cylindrical grinding to micron tolerances — from Karlstein am Main, Germany, since 1985.
- 0+
- Years of experience
- μm
- Tolerances
- 0
- Axes
- ISO
- 9001 + 14001
Parts from our own production
Turning · Milling · Assemblies
NAKAMURA NTY³HURCO VMX 84TWENZEL LH 65TITAN GRADE 5DIN EN ISO 21920EDELSTAHL 1.4404ISO 9001ISO 14001µm-TOLERANZEN12 ACHSEN · 3 REVOLVERKARLSTEIN AM MAINSEIT 1985NAKAMURA NTY³HURCO VMX 84TWENZEL LH 65TITAN GRADE 5DIN EN ISO 21920EDELSTAHL 1.4404ISO 9001ISO 14001µm-TOLERANZEN12 ACHSEN · 3 REVOLVERKARLSTEIN AM MAINSEIT 1985NAKAMURA NTY³HURCO VMX 84TWENZEL LH 65TITAN GRADE 5DIN EN ISO 21920EDELSTAHL 1.4404ISO 9001ISO 14001µm-TOLERANZEN12 ACHSEN · 3 REVOLVERKARLSTEIN AM MAINSEIT 1985
- ISO 9001:2015Quality
- ISO 14001:2015Environment
- Quote in 48 hno obligation
- NDA standardConfidentiality
- Since 1985Hidden champion
- Made in GermanyKarlstein a. M.
ServicesFour core capabilities.
Four core capabilities.
One machine park.
From drawing to finished part — turning, milling, cylindrical grinding and assemblies under one roof. Series-ready, repeatable, ISO 9001.
02 · Travel up to 2,100 × 840 × 760 mm
CNC Milling
3- to 5-axis machining on high-precision centres. Tool changers up to 40 pockets, swivel head for complex geometries.
Machines
- Hurco VMX 84t (40-tool changer)
- Hurco VMX 60 SRTi (swivel rotary table)
- Hurco VMX 42i
03 · Single pieces to medium series
Assemblies
Assemblies and components from one supplier — from part production through fitting to functional testing.
Machines
- Part production
- Assembly in hall 2
- Functional testing
04 · Ø up to 250 mm · length up to 1,045 mm
CNC Cylindrical Grinding
High-precision external cylindrical grinding on a CNC universal machine. Tolerances in the micron range, mirror-smooth surfaces.
Machines
- Studer S33
Additional services04 / 04
Sawing & preparation
Saws up to Ø 300
Sandblasting
In-house blasting unit
Prototyping
From drawing to part
Surface finishing
to DIN EN ISO 21920
Not sure which process your part needs? We will tell you.
PartsWhat leaves our shop.
What leaves our shop.
No stock photos.
Every part on this page was made in our own shop. If yours looks anything like these, chances are we can make it too.
01Turn-milled partHousing with flange collar, bearing seat and pressed-in bushings
02Turned partRotational part with external thread and tapered shoulder
03Turn-milled partUnion fitting with hexagon, threads on both ends and a through slot
04Geared partHelical gears with bolt circle, produced as a matched pair. Surface hardened
05AssemblyFlange bearing with shaft, assembled and function-checked
06Milled partSlotted clamping block with fitted bore and marking
Your part is not shown here? Send us the drawing and within two working days we will tell you whether and how we can make it.
Upload your drawingQualityPrecision is not
Precision is not
optional.
“Taking personal responsibility for quality is what separates a part that fits from a part that lasts for years.”
DIN EN ISO 9001
Certified quality management system. Annual surveillance audits, full traceability across all processes.
Material certificates 3.1 / 3.2
Unbroken traceability from raw material to finished part. Certificates supplied with any order on request.
Wenzel coordinate measuring
Coordinate measuring machine plus Derby Etalon. First article inspection reports and series checks with 3D report.
Climate-controlled measuring room
A constant 20 °C ± 0.5. A separate room so that results in the micron range stay reproducible.
Not sure we can make it?
Ask before you send the drawing.
Unsure about a tolerance, a material or how to clamp the part? A short call often settles faster whether a full enquiry is worth your time.
Frequently askedBefore you enquire
Before you enquire
answered briefly.
Three questions we answer every day — from buyers and design engineers. More answers on our quality page.
01What tolerances can Koloseus hold?
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What tolerances can Koloseus hold?
We work in the micron range. Our CNC universal cylindrical grinder makes that possible. Final inspection runs on Wenzel coordinate measuring equipment and Derby Etalon gauges.
02Which materials do you machine?
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Which materials do you machine?
Steel (including hardened and stainless), stainless steel, aluminium, brass, titanium, plastics and special materials. Our machine park is set up for series work as well as single parts.
03Is Koloseus certified?
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Is Koloseus certified?
We are certified to DIN EN ISO 9001 (quality management) and DIN EN ISO 14001 (environmental management), both valid until November 2028. Both certificates are available as PDFs in German and English.
Enquiry in 60 secondsFive steps.
Five steps.
Quote within 48 h.
A rough idea is enough, a file is optional. We check feasibility, material and clamping — a quote without obligation by email within two working days.
06188 9953-27 · Luca, direct line
Mon – Thu · 08:00 – 17:00 · Fri · 08:00 – 15:00
Step 1 / 5
What are you building?
Optional: drop your drawing here — we read format and size right away.
Confidential · standard NDA on request
Contact & visitsKarlstein am Main.
Karlstein am Main.
30 min from Frankfurt Airport.
In the area — Hanau, Aschaffenburg, Frankfurt? Come and see us. A tour of the shop floor is included, by appointment.
- Zentrale06188 9953-0
- Emailinfo@koloseus.de
- ÖffnungszeitenMon – Thu · 8:00 – 17:00
Fri · 8:00 – 15:00