sales@libertymachinery.com
sales@libertymachinery.com
Serial No. 4798
New – 1999
SPECIFICATIONS:
Grinding Capacity…………203 mm (7.9″)
Grinding Wheel – Diameter (O.D.) – Maximum…………610 mm (24″)
Grinding Wheel – Diameter (O.D.) – Minimum…………488 mm (19.2″)
Grinding Wheel – Width…………305 mm (12″)
Grinding Wheel – Hole (I.D.)…………304.8mm (12″)
Grinding Wheel – Speed…………27 m/sec (835 RPM)
Regulating Wheel – Diameter (O.D.) – Maximum…………330 mm (12.9″)
Regulating Wheel – Diameter (O.D.) – Minimum…………264 mm (10.3″)
Regulating Wheel – Width…………305 mm (12″)
Regulating Wheel – Hole (I.D.)…………203.2 mm (8″)
Regulating Wheel – Speed…………20 – 200 RPM (Variable Speed)
Motors:
Grinding Wheel…………22 kW 4P (30 HP)
Regulating Wheel…………2.2 kW (3 HP)
Regulating Wheel Lower Side…………0.5 kW (Servomotor)
Grinding Wheel Rotary Dresser…………0.75 kW 2P
Grinding Wheel Dresser Infeed Slide…………0.2 kW (Servomotor)
Grinding Wheel Dresser Traverse Slide…………0.5 kW (Servomotor)
Regulating Wheel Dresser Infeed Slide…………0.2 kW (Servomotor)
Regulating Wheel Dresser Traverse Slide…………0.5 kW (Servomotor)
Hydraulic Power Supply…………Variable Discharge Vane Pump
25 Liter/Min, 1.5 kW 4P
Centralized Lubrication System:
Motor Pump Lube Unit for Slide Ways…………70 W 2P
Coolant System:
Main Coolant Pump…………0.4 kW 2P
Sub Coolant Pump…………0.4 kW 2P
Rotary Dresser Coolant Pump…………0.18 kW 2P
Paper Filter…………60 W
Temperature Regulator (OIL MATIC)…………1.5 kW 2P
Swivel Angle:
Feed Angle – Vertical Swivel…………-1 degree to +5 degrees
Horizontal Swivel Angle…………+/- 0.5 degrees
Required Utilities:
Compressed Air Supply…………60 PSI (Approx. 120 L/Min)
Hydraulic Fluid…………Approximately 60 Liters (16 Gallons)
Coolant…………Approximately 1070 Liters (282 Gallons)
Required Power Supply…………460/3/60
Approximate Dimensions…………6900 mm x 4500 mm
Approximate Weight…………8000 kg
EQUIPPED WITH:
Fanuc 18T CNC Control
Schmitt Industries SBS Grinding Wheel Balancer
Gantry Style Loader/Unloader
Control Gaging In-Process/Post-Process Gage System
Operation Panels
Control Panel (Control Enclosure)
Hydraulic Power Supply
Coolant System
GENERAL INFORMATION:
The Machine is provided with five CNC-Servomotor Controlled Slides controlled
by two CNC Head Units:
CNC System’s Head #1:
Regulating Wheel Dresser Infeed Slide…………X1-Axis
Regulating Wheel Dresser Traverse Slide…………Z1-Axis
Regulating Wheel Lower Slide…………Y1-Axis
CNC System’s Head #2:
Grinding Wheel Dresser Infeed Slide…………X2-Axis
Grinding Wheel Dresser Traverse Slide…………Z2-Axis
In addition, an AC Spindle-Motor controlled by the CNC System is adopted
to drive the Regulating Wheel Spindle.
The Machine offers the Automatic Compensation Functionality to maintain the
part O.D. within the specific tolerance and the Automatic Dressing
Functionality employing the FANUC CNC System, the Post-process and In-process
Gage System, or the Preset Counters. In the continuous automatic operation,
the CNC System will regulate a period of sparkout in the grinding cycle, while
the In-process Gaging System is activated to measure the O.D. of the part to
be ground to control the O.D. dimension. The CNC System will regulate, or
shift, the Regulating Wheel Lower Slide to compensate the grinding wheel’s
wear rate according to the output signal of the Post-process Gage System or
the Preset Counter, and the preset data programmed in the CNC System.
*Preliminary Specifications Subject to Verification.
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