Surface Grinder

Over Arm

Over Arm

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Feature

FEATURES AND CONSTRUCTION

Both V-ways of the table are precision ground and hand scraped, they are lubricated by hydrostatic lubrication system for smoother movement and longer machine life. The table moves in the longitude axes only while the machines column moves in the cross feed axes. The table is fully supported by the base casting even when at either end position.

All of the major cast iron components such as the base, table, column, wheel head and saddle are honey comb ribbed and are annealed to relieve stress improving the machine performance and life expectancy.

The vertical travel of the wheel head is driven by a precision ground ball screw and A.C Servo Motor with encoder. The slide ways are lubricated by an automatic lube system to insure smooth movements.

Easy setting of the cross travel, for automatic cross feed is on the control panel setting distance and reversal points viz the push buttons on the control panel.

POWERFUL PLC TOUCH SCREEN CONTROL

A precision ballscrew, and A.C. servo motor with encoder, coupled with the PLC touch screen control allows the operator a wide range of grinding programs and control features. Grinding cycles include: Surface, Plunge, and Crisscross modes.

A color touch screen is easy to read and simple to operate. Both rough and fine feed rates can be set on the touch screen. The wheelhead can be jogged up or down with use of two push button switches.

Specification

Model OA-3260 OA-3280 OA-32100 OA-32120 OA-32160 OA-4060 OA-4080 OA-40100 OA-40120 OA-40160
Table clamping surface W 32 inch 32 inch 32 inch 32 inch 32 inch 40 inch 40 inch 40 inch 40 inch 40 inch
Table clamping surface L 68.9 inch 86.8 inch 106.4 inch 126 inch 165.4 inch 68.9 inch 86.8 inch 106.4 inch 126 inch 165.4 inch
Maximum longitudinal travel 65 inch 84.6 inch 104.3 inch 124 inch 163.4 inch 65 inch 84.6 inch 104.3 inch 124 inch 163.4 inch
Maximum cross travel 33.86 inch 33.86 inch 33.86 inch 33.86 inch 33.86 inch 41.73 inch 41.73 inch 41.73 inch 41.73 inch 41.73 inch
Maximum grinding area W 31.5 inch 31.5 inch 31.5 inch 31.5 inch 31.5 inch 39.4 inch 39.4 inch 39.4 inch 39.4 inch 39.4 inch
Maximum grinding area L 59 inch 78.7 inch 98.4 inch 118 inch 157.5 inch 59 inch 78.7 inch 98.4 inch 118 inch 157.5 inch
Max. distance between spindle center to table 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional) 31.5/39.4(optional)
Down feed per division (MPG) 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch 0.0001,0.0005,0.001 inch
Down feef per revolution (MPG) 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch 0.01,0.05,0.1 inch
Auto downfeed Servo motor 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch 0.0005-0.002 inch
Longitudinal table speed 10-105 fpm 10-105 fpm 10-105 fpm 10-105 fpm 10-105 fpm 10-105 fpm 10-105 fpm 10-105 fpm 10-105 fpm 10-105 fpm
Crossfeed intermittent 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed 0.004-1.57 inch/feed
Crossfeed continuous 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm 0.9-5 fpm
Crossfeed per division 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch 0.0001,0.001,0.005 inch
Grinding wheel dimension (ODxIDxWidth) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional) 16x5x2 / (16x5x3 optional)
Spindle speed(50/60HZ) 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M. 1450/1720 R.P.M.
Spindle motor 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P. 15/25(optional) H.P.
Hydraulic pump motor 7.5 H.P. 7.5 H.P. 7.5 H.P. 7.5 H.P. 10 H.P. 7.5 H.P. 7.5 H.P. 7.5 H.P. 10 H.P. 10 H.P.
Total power motor 24/34 H.P. 24/34 H.P. 24/34 H.P. 24/34 H.P. 26.5/36.5 H.P. 24/34 H.P. 24/34 H.P. 24/34 H.P. 26.5/36.5 H.P. 26.5/36.5 H.P.
Floor space L 236 inch 276 inch 315 inch 362 inch 452 inch 236 inch 276 inch 315 inch 362 inch 452 inch
Floor space W 122 inch 122 inch 122 inch 122 inch 122 inch 130 inch 130 inch 130 inch 130 inch 130 inch
Floor space H 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch 110/118(optional) inch
Net weight(approx) 26400 lbs 29040 lbs 31680 lbs 35200 lbs 42020 lbs 28380 lbs 31680 lbs 34980 lbs 38390 lbs 46200 lbs
Chuck weight 1550 lbs 2070 lbs 2590 lbs 3100 lbs 4140 lbs 1940 lbs 2600 lbs 3240 lbs 3170 lbs 4230 lbs
Maximum workpiece on chuck 3300 lbs 3960 lbs 4400 lbs 4400 lbs 5060 lbs 4400 lbs 4840 lbs 5280 lbs 5500 lbs 5500 lbs

Accessories

Standard Accessories
Grinding wheel (1 Pc.)
Wheel flange (1 set.)
Coolant system (1 set.)
Tools with box (1 set.)
Balancing arbor (1 Pc.)
Wheel extractor (1 set.)
Chiller for hydraulic oil (1 set.)
Hydro static system (1 set.)
Optional Accessories
Electro-magnetic chuck (Includes rectifier with automatic demagnetizing.)
Spare wheel flange
Balancing stand
Halogen machine lamp
Coolant system with paper filter
Magnetic dust separator
DRO 1 or 2 Axis
Variable speed spindle
Air conditioner for electric
Vertical spindle grinding equipment (OA type only)

PROMOTIONS

PROMOTIONS