Question 1

Home · Services · CNC Cylindrical Grinding Service · CNC cylindrical grinding · 03 External grinding to micron tolerances. CNC universal cylindrical grinding on the Studer S33. Ø up to 250 mm, Ra ≤ 0.2 μm. Send your drawing 06188 9953-0 At a glance Studer S33 · micron tolerance · Ra ≤ 0.2 Diameter Ø up to 250 mm Length up to 1,045 mm between centres Material hardness up to HRC 62 Grinding spindle CNC controlled · dressing unit When tolerances drop below 10 μm and the surface has to be mirror-smooth, cylindrical grinding takes over. On the Studer S33 we grind external contours on hydraulic pistons, gearbox shafts and high-precision parts — including after hardening. Capabilities What we can do. Diameter Ø up to 250 mm Length up to 1,045 mm between centres Material hardness up to HRC 62 Grinding spindle CNC controlled · dressing unit Coolant High-pressure flushing with filtration Tolerances Precision, documented. Dimensional tolerance ± 2 μm Roundness ≤ 1 μm Cylindricity ≤ 2 μm / 100 mm Surface roughness Ra ≤ 0.2 μm Materials What we machine. Case-hardening and tempering steel 16MnCr5, 42CrMo4 — case-hardened and nitrided Tool steel 1.2379, 1.2842 — hardened up to HRC 62 Stainless steel 1.4301, 1.4404 (ground and polished) Hydraulic special surfaces Hard-chromed shafts, nitrocarburised surfaces Machines for this service Tools that push the limit. Gesamter Maschinenpark 01 Studer S33 CNC universal · micron tolerance External cylindrical grinding with CNC-controlled dressing. Holds dimensional tolerances of ± 2 μm and surfaces down to Ra ≤ 0.2 μm, also on hardened parts. Industries Who we produce for. Hydraulics Precision engineering Drive technology Tool and die Typical applications What comes out of it. 01 Hydraulic pistons with Ra ≤ 0.2 μm 02 Gearbox shafts after case hardening 03 High-precision shafts for servo and spindle drives 04 Regrinding of hardened clamping devices 05 Reference masters for metrology From drawing to part From drawing to measurement report. Step 01 Drawing review DWG, STEP, PDF, DXF — we clarify tolerances and material choice with you. Step 02 Quote within 48 h Including machining time, material cost and delivery date. Without obligation. Step 03 Production First setup, sampling, series start. Step 04 Measurement & report Final inspection on Wenzel CMM. 3D measurement report on request. Frequently asked CNC Cylindrical Grinding · FAQ Answers to the questions buyers and design engineers ask most often. Not covered? Give us a call — +49 6188 9953-0. What tolerances can you hold when grinding?

Accepted Answer

On the Studer S33 we hold dimensional tolerances of ± 2 μm, roundness ≤ 1 μm and surfaces down to Ra ≤ 0.2 μm. Tighter figures are possible for reference parts — please ask.

Question 2

Do you grind hardened parts?

Accepted Answer

Yes, up to HRC 62. Case-hardened, nitrided and hard-chromed surfaces are everyday work for us.

Question 3

Can you grind parts we turned elsewhere?

Accepted Answer

Yes. Send the part with the drawing — we check the grinding allowance and the clamping situation before we quote.

External grinding to micron tolerances.

What we can do.

Precision, documented.

What we machine.

Tools that
push the limit.

Studer S33

Who we produce for.

What comes out of it.

From drawing
to measurement report.

Drawing review

Quote within 48 h

Production

Measurement & report

CNC Cylindrical Grinding · FAQ

From one supplier — from raw stock to the inspected assembly.

CNC Turning

CNC Milling

Assemblies

Karlstein am Main.
30 min from Frankfurt Airport.