HMR 250 CYLINDER BORING AND SURFACE MILLING
  

HMR 250 machine is designed to be used in engine reconditioning workshops and by liner manufacturers. It is capable of machining small and large engine cylinders as well. It is made of wear resistant high quality cast iron. The slides are accurately ground. Movement of the head and table are along V-shaped slide ways. To make the machine suitable for mass production, the power screw and the table have been designed such that their movements can be digitally and steplessly adjusted. The flexible control panel makes the machine easy to run. The machine can be operated manually and automatically and the boring head retracts automatically when reaching the end of the stroke. HMR 250, the shaft incorporated in the boring head helps centering the cylinders easily and accurately.

CYLINDER BORING AND SURFACE MILLING / HMR 250 
 
TECHNICAL DETAILS HMR 250
BORING STROKE 720 mm.
MINIMUM BORING DIAMETER 30 mm.
MAXIMUM BORING DIAMETER 250 mm.
MINIMUM DISTANCE FROM HEAD TO RACK 1300 mm.
MAXIMUM DISTANCE FROM HEAD TO TABLE 580 mm.
DISTANCE BETWEEN SPINDLE AXIS AND SLIDE 390 mm.
SPINDLE ROTATION SPEED RANGE 0-700 rev
SPINDLE ADVANCEMENT 0-0,50 mm./rev
FAST TRAVEL OF THE BORING HEAD 0-100 mm./min
TABLE SURFACE DIMENSIONS 505-1510 mm
TABLE LONGITUDINAL MOTION 1400 mm.
TABLE TRANSVERSE MOTION 160 mm.
AUTOMATIC TABLE FEEDS 20-450 mm./1
SURFACE MILLING WIDTH 370 mm.
SPINDLE MOTOR 1,5 kw
HEAD FAST FEED MOTOR 1,5 kw
TABLE DRIVING MOTOR 0,37 kw
LENGTH, HEIGHT, WIDTH 252 - 246 - 163 cm
APPROXIMATE WEIGHT 3800 kg.
 

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