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CENTRELESS GRINDER

INTRODUCTION

The "Right" Centreless Grinders model, R-1,. R-2 and R-3 have been designed in such a manner that all the controls are conveniently placed within the easy reach of operator from where his working position is more efficient than plain cylindrical grinders. The machines are more suitable for grinding work pieces from 1/8" to 5" diameter to a very fine limit of accuracy. The machines are capable of undertaking various kinds of Centreless grinding jobs. The principal unit of machine comprises of grinding wheel, a control wheel and a work rest. This arrangement provides a three-point support. The machines are indispensable for quantity production due to their high production rates and their simple and easy way of operation.


GRINDING WHEEL HEAD

As the grinding wheel head is one of the principal units of the machine, therefore, special importance has been given to the design and construction of the grinding wheel spindle. The spindles of -1 and R-2 have been inserted in imported taper roller bearing and R-3 in parallel cylindrical brasses driven by means of V-Belts.


CONTROL WHEEL HEAD

The main function of the control wheel gives to the work piece a safe support during grinding and regulates a circumferential speed and he rate of the speed of the work piece. Its design is very ragged and arrangement of spindle is similar to that of grinding wheel. Its spindle and housing are arranged to swing within the range of 5-0. The angle at which they are set and the speed of the wheel determines the rate of the feed through the machines for straight through work.


WORK REST

An essential to the Centreless - grinding principle is the work plate upon which the work is supported while being rotated by the control wheel. Two types of plates are available. The chilled cast iron work plate and the inserted blade type of hardened steel.


DRIVE

For grinding wheel head and control wheel head two separate electric motors have been provided. Coolant pump also receives electric drive from a separate 0.10 H.P. electric motor.

Specification
Model Right-1 Right-2 Right-3
Maximum grinding diameter 25 mm 75 mm 125 mm
Minimum grinding diameter 3 mm 3 mm 6 mm
Maximum included angle for Taper work 5 deg 5 deg 5 deg
Speed of Grinding Wheel R.P.M 1800 1600 1250
Number of Speed of control Wheel 3 3 6
Diameter of Grinding Wheel 300 mm 350 mm 500 mm
Maximum Width Grinding Wheel 80 mm 100 mm 150 mm
Diameter of Hole in Grinding wheel 75 mm 125 mm 300 mm
Diameter of Control Wheel 200 mm 225 mm 300 mm
Maximum Width of Control Wheel 80 mm 100 mm 150 mm 
Diameter of Hole in control Wheel 75 mm 75 mm 150 mm
H.P. of Motor for Wheel Head 3 H.P. 5 H.P. 15 H.P.
H.P. of Motor for Control Wheel 3/4 H.P. 3/4 H.P. 2 H.P.
Speed of Motor in R.P.M 1440 1440 1440
Floors Space for Machine 24"*38" 30"*40" 48"*65"
Approximate Weight 1050 kgs. 1300 kgs. 2600 kgs.
Specification may be changed without any prior notice
To enhance to Quality of Our Product.
Standard Equipments
  • Grinding Wheel
  • Control Wheel
  • Dressing Attachment
  • Diamond Tools
  • V-Belts
  • Motor Pully
  • Water Tank
Extra Equipments
  1. Packing
  2. Long Bar feed Attachment
  3. Hydraulic Dressing Attachment
  4. Micro- Feed for Precision Works.
  5. Brass Bushes in wheel Head and Control Head.
  6. Wheel Balancing Stand
Delivery period within One month (without any attachment)

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