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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 | GT-3248 | GT-3260 | GT-3280 | GT-32100 | GT-32120 |
|---|---|---|---|---|---|
| Table clamping surface W | 32 inch | 32 inch | 32 inch | 32 inch | 32 inch |
| Table clamping surface L | 56 inch | 65 inch | 84 inch | 104 inch | 124 inch |
| Maximum longitudinal travel | – | – | – | – | – |
| Maximum cross travel | 33.86 inch | 33.86 inch | 33.86 inch | 33.86 inch | 33.86 inch |
| Maximum grinding area W | 31.89 inch | 31.89 inch | 31.89 inch | 31.89 inch | 31.89 inch |
| Maximum grinding area L | 49 inch | 61 inch | 80 inch | 100 inch | 120 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) |
| 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 |
| 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 |
| 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 |
| Longitudinal table speed | 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 |
| Crossfeed continuous | 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 |
| Grinding wheel dimension (ODxIDxWidth) | 20x5x2 / (20x5x3 optional) | 20x5x2 / (20x5x3 optional) | 20x5x2 / (20x5x3 optional) | 20x5x2 / (20x5x3 optional) | 20x5x2 / (20x5x3 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. |
| 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. |
| Hydraulic pump motor | 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. | 26.5/36.5 H.P. | 26.5/36.5 H.P. |
| Floor space L | 187 inch | 211 inch | 250 inch | 289 inch | 329 inch |
| Floor space W | 135 inch | 135 inch | 135 inch | 135 inch | 135 inch |
| Floor space H | 96.8 inch | 96.8 inch | 96.8 inch | 96.8 inch | 96.8 inch |
| Net weight(approx) | 17380 lbs | 19140 lbs | 22220 lbs | 25300 lbs | 27940 lbs |
| Chuck weight (lbs) | 1200 lbs | 1310 lbs | 2070 lbs | 2590 lbs | 3100 lbs |
| Maximum workpiece on chuck | 2640 lbs | 3300 lbs | 3960 lbs | 3960 lbs | 4400 lbs |
Accessories
