UM4E Mobile Machine
for refacing
both valve faces and valve seats

The next generation
for both valve faces and valve seats of big 4-stroke diesel engines.
►Download UM4E Product Sheet

One machine for refacing both valves and valve seats!
Very short refacing time! 
No abrasive grinding dust! 
No noise!

When refacing valves, the machine is centered by a guiding sleeve clamped to the stem of the valve to be refaced.
When refacing valve seats, the machine is centered by a pilot inserted in the valve guide of the valve seat to be refaced.

The pilots of the VD4E Valve Seat Refacer can be used for centering the UM4E.

Roundness, concentricity and surface finish of the refaced valve seat are within manufacturers’ specifications.



   Valve seat diameter range
90 - 250 mm  
   Valve seat angle rangel
0° - 60°  
   Valve stem diameter range
18 - 40 mm  
Feed motions:    
   Rotary speed
120 - 350 rpm  
   Cross feed
0,05 mm/rev.  
Electrical system:    
   Supply voltage

   (1ph 50/60Hz)      or
   Rated current
Basic machine:

   Width/depth/Height 320/160/480 mm
   Net weight, approx.
 30 kg