The name traditionally associated with machining in the μ-range is KRAUSECO.

And it is thanks to this specialist knowledge that KRAUSE & MAUSER represent the current μ-range machining benchmark.

NC-controlled valve seat and valve guide machining

• Suitable for producing all kinds of chamfers (incl. convex/concave), radii and bends
• Produces both the intake and exhaust openings using just one special tool
• Balanced out in all positions
• Excellent concentricity between valve seat and valve guide
• Valve seat angle < 20 min.
• Valve seat runout < 10 μm
• Valve seat roundness

NC-controlled fine cylinder bore machining

• No eccentric spindle required, which means that the max. spindle bearing-Ø can be used
• Highly rigid thanks to well-braced, elastic system
• Adjustment/lifting range 0.5 mm/radius
• Size-controlled semi finish and reverse finish boring
• Roundness < 6 µm
• Cylinder shape < 8 µm

NC-controlled fine conrod machining

• Freely-programmable contour machining with a tolerance of 3 – 5 µm
• No need to change tools – fully process capable
• 100% post-process measurement with automatic CNC correction
• 400 million conrods produced with KRAUSE & MAUSER machines 

Fine machining pump housings

• No need for grinding thanks to the PS INVERS³’s outstanding machining concept
• Due to the concept employed by the PS INVERS³, there is no longer any need to change tools – which in turn has lead to an increase in the machining precision achieved, which means that there is no longer any need for a grinding machine. This has made our automotive industry customer’s production significantly more cost effective and efficient. 

Fine machining valve gate housings

• Up to 30 flange holes machined in one working stroke ~ 4 seconds
• Optimised tool/spindle design, diameter, speed, torque
• Optional tool precision adjustment in the spindle
• Longer tool life
• Unbeatable repeat accuracy when leaving the reamer in the spindle