Centreless Grinding SEZ 500CL and SEZ 250CL

STANDARD FEATURES :

  • The Grinding Machine is built with rugged and stress relieved casting.
  • The Grinding wheel and Regulating wheel spindles are Twin Grip type to take heavy
  • grinding load and still ensure size consistency.
  • The X Axis and Y Axis slides are moving with precision linear needle roller guideways and are practically friction free.
  • The grinder has 4 Axis CNC Controls.
  • The Grinder is equipped with simple external hydraulic power pack for spindle lubrication with pressure switch interlock.
  • Twin grip wheel spindle
  • Dedicated hydraulic power pack for Grinding Wheel Spindle and Regulating Wheel Spindle.
  • Automatic lubrication for dresser and slide
  • The Grinding wheel head is Fixed and the Regulating wheel head is moving. This
  • slide moves with a servo motor ( X-Axis)
  • CNC CONTROLS:
  • CONTROLLER: SIEMENS 828D/FANUC 0i-TF+
  • The system will be integrated with 4 Axis CNC controls:
  • X-AXIS – Servo driven Infeed slide.
  • Y-AXIS – Diamond Dressing across the Grinding wheel width.
  • Z- AXIS – Diamond Advance for Grinding Wheel Dresser.
  • U-AXIS – Servo drive for traverse movement of Regulating wheel dresser.
  • Y AND Z AXIS
    Servo Motor drive for regulating wheel dresser and linear slide and ball screw for
    traverse of the dresser (U Axis)
    Slide movement in steps of 0.001mm
    Auto dressing and auto compensation.
    Linear Guideways of Schneeberger, Switzerland or ROSA, Italy make between Plate
    Swivel and Lower Slide and Ball Screw from PMI, Taiwan.
    Provision of COMP IN and COMP OUT buttons for size control on the Control Pendant
    to enable small increment/decrement in slide positions without changing the offset
    values in the program. The increments can be programmed from 0.001mm onwards.
    Also, Provision of Remote COMP IN, COMP OUT and EMERGENCY STOP controls
    at the Rear side of grinder for Operator convenience in Thrufeed grinding.
    Easily Read Out Digital screen which displays the slide position, RW RPM, current executable cycle and alarms.
    The Regulating Wheel drive will be integrated with the Servo infeed attachment
    through the controller. The Speed can be changed in increment of 1 RPM
  • ❖ A unique feature of our Centerless Grinders is the Pull Back Pneumatic Cylinders in
  • the infeed slide. These are useful to provide Zero Backlash and thus consistent
  • repeatability.
MACHINE MODEL SEZ 500CL SEZ 250CL
DESCRIPTION VALUE VALUE
No. of CNC Control Axis 4 4
Grinding Wheel Spindle 1 1
Regulating Wheel Spindle 1 1
Work Piece diameter (min/max) 12/150 mm 1.6/76 (Optional: 51/95)
Grinding Wheel diameter (Diameter x Width x Bore) 610 X 508 X 305 mm 610 X 254 X 305 mm
Minimum Grinding Wheel diameter 432 mm 432 mm
Maximum wheel surface speed (New Wheel) 45 m/sec 45 m/sec
Regulating Wheel diameter (Diameter x Width x Bore) 355 x 508 x 152.4 mm 305 x 254 x 127 mm
Minimum Regulating Wheel diameter 267 mm 229 mm
Maximum Regulating wheel (Infinitely Variable) 12 – 300 rpm 10 – 300 rpm