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Rotary Surface
Grinding Machine

Rotary Surface Grinding Machine

PHR CNC SERIES

PHR 500C | PHR 600C | PHR 800C | PHR 1100C | PHR 1500C

Brief Description About Rotary Grinding Machine

  • PINNACLE-make PHR CNC series machines are CNC-Controlled High Precision Horizontal Spindle Rotary Table Surface Grinding machines, established on the latest European concept of column moving design. These machines are ideal for anyone looking for a high-quality Rotary Grinding machine.

  • Rotary Axis i.e. B-Axis is equipped with a hydrodynamic-designed table capable of carrying heavy load capacities, eliminating structural wear and inaccuracies caused by rotary wobble. This feature makes the PHR CNC series a top choice for those in need of a reliable Horizontal Spindle Rotary Surface Grinder.

  • Vertical Axis i.e. Y-Axis is driven by A. C. Servo Motor through Precision Double-Nut Ball Screw & Nut.

  • Cross (Traverse) Axis i.e. Z-Axis is driven by A. C. Servo motor and Drive through Precision Double-Nut Ball Screw & Nut.

  • Grinding Spindle-Cartridge is assembled with Imported SUPER PRECISION BEARINGS grease packed with Imported Grease filled for Life to guarantee long, trouble-free service. This meticulous construction highlights the PHR CNC series as an exceptional Rotary Surface Grinding Machine.

  • PHR NC series machines are mostly used for high production or batch production purposes, significantly reducing operator dependency.

  • PHR NC series machines are used in various Surface Grinding applications of Tool-room, Wood working machinery parts, Diamond Industry, Gear manufacturing, Automobile Industry, Bearing Industry and Pump-Valve Industry.

Download Rotary Grinding Machine Brochure

PHR CNC SERIES 500C TO 1500C CATALOGUE  
  • Salient & Key Features
  • Standard & Optional Accessories
  • Technical Specifications
    (PHR NC 500C to PHR NC 1500C)

Salient Features of Rotary Grinding Machine

  • Moving Column Design.

  • Naturally seasoned Castings equivalent to Meehanite grade.

  • OPTIMUM ribbing for more stability with Maximum vibration Damping capacity.

  • Precision Ground Vertical and Cross Guide ways.

  • All 3 Axes coated with anti-friction Turcite B-lined material.

  • Auto Centralized Lubrication with Re-circulating Filtration system.

  • Auto Grinding cycle equipped with Rough, Finish, Fine & Spark out Grinding cycles.

  • Interlocks on Spindle Rotation/Magnetic Chuck.

  • AC Servo Drive with Ball Screw for Y-Axis & Z-Axis for accurate & precise controls.

  • Auto parallel Dressing with Auto Compensation.

  • Set different cross feeds during Rough, Finish & Fine grinding cycles.

  • Unique facility to undertake Vertical depth of cut from inside, outside & both sides of the table.

  • Each & every important messages/alarms during the Auto Grinding cycle regarding important factors like Coolant & Lubrication is clearly mentioned in the MOP.

Key Features

  • Fully Enclosed Grinding area.

  • Developed Auto Grinding cycles with Auto dressing & Auto compensation.

  • Innovative Auto constant surface speed technology in Auto grinding cycle.

  • Perfect Squareness of all B,Y & Z Axes.

  • Developed cycle for taking easy Grinding & Dressing offsets.

  • Electronic Hand Wheel with Least Count of 0.001 mm in Y & Z Axes.

STANDARD ACCESSORIES

  • Grinding wheel

  • Grinding wheel flange unit

  • Wheel balancing mandrel

  • Machine Lamp

  • Set of necessary wrenches

  • Table mounted wheel dressing block

  • PINNACLE Test Chart

  • Variable Spindle Speed

  • Operating Instruction Manual

  • Grinding wheel clamping & Extraction bolt

  • Levelling Pads & Bolts

  • VFD in Rotary Table

  • Electro Magnetic chuck with Variable Mag force & MAG-DEMAG.

  • Coolant system

OPTIONAL ACCESSORIES

  • Static Wheel Balancing Stand.

  • Magnetic separator with Coolant system.

  • Magnetic separator and Paper Band Filter with Coolant system.

  • Tilting Rotary Table

  • Extra Wheel Flange unit.

  • Radius & Angular Wheel Truing Attachment.

  • Vice – Plain, Sine, Swivel & Universal.

  • Job Demagnetizer.

  • Dust Collecting Unit.

  • Mist Collector.

  • Auto lift of Spindle in event of Power failure.

  • Other possible Customisation.

DESCRIPTION UOM PHR 500C PHR 600C PHR 800C PHR 1100C PHR 1500C
CAPACITY
Working Surface of the Table (Ø) mm 500 600 800 1100 1500
Max. Job size that can be Ground (Ø) mm 500 600 800 1100 1500
Max. Cross Traverse mm 300 350 450 600 800
Electro-Magnetic Chuck (Ø x H) mm 500 x 80 600 x 80 800 x 80 1100 x 80 1500 x 80
Max. Spindle Centre from Table Surface mm 525 750
Max. Job height with new wheel on EMC mm 300 500 470 420
Max. weight carrying capacity of the Table Kgs. 300 350 500 700 900
SPEEDS & FEEDS
Table Speed (Infinitely variable) RPM 10 to 100 10 to 70 10 to 50 10 to 30
Auto Cross traverse (Innitely Variable) mm/rev 0.5 to 20
Power Elevation (Rapid Positioning) mm/min 3000
Vertical feed graduation (MPG) mm 0.001
Vertical In-Feed Amount (Settable on MOP) mm 0.001 to 0.1
GRINDING WHEEL HEAD
Speed of Grinding Wheel RPM 1400 960
Size of Grinding Wheel (O.D. x Width x I.D.) mm 300 x 40 x 76.2 300 x 50 x 76.2 350 x 50 x 127 400 x 50 x 127 500 x 50 x 127
Grinding Wheel Head Motor (A.C. Induction) H.P. / kW 5 / 3.7 7.5 / 5.5 10 / 7.5 15 / 11
LUBRICATION UNIT
Lubrication Tank Capacity Litres 30 40 60
Working Pressure Kg/cm^2 15 18 20
Power of Rotary Table H.P. / kW 2 / 1.5 3 / 2.2 5 / 3.7 7.5 / 5.5
GENERAL
TOTAL Power (3 Phase / 415 Volts / 50 Hz) H.P. / kW 12 / 9 13 / 10 16 / 12 22 / 16.5 30 / 22
Approx. Net Weight of machine Kgs. 2200 2600 3800 7000 11000
Approx. Gross Weight of machine Kgs. 2800 3200 4700 8200 13300

MACHINE DIMENSIONS

Rotary Surface Grinding Machine Dimensions
MACHINE MODEL A (Length) B (Width) C (Operating) D (Height)
PHR 500C 2500 1900 600 2400
PHR 600C 2800 2200
PHR 800C 3100 2900 2800
PHR 1100C 4200 3900
PHR 1500C 4800 5200

** PINNACLE reserves the right to modify design, specifications, mechanisms etc. to improve the performance of any machine without notice.

** Photographs shown with Optional accessories.

** All dimensions are in mm.

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