Product categories

Column Type Surface Grinders

24 Volt Electric Control & Touch Screen Control Panel 

  • The machine is equipped with the PLC touch screen control with easy to learn conversational shop floor language
  • The control has a safety feature that prevents the hydraulic system from being started without the electromagnetic chuck engaged. The feature will not allow the wheel head to rapid down while the Hydraulic system is in operation.
  • Original workpiece zero position is stored in the control memory even if power to the machine is lost.

Product Description

Lubrication System

A fully automatic hydrostatic system is employed on the sideways. An alarm alerts the operator when the oil gets low preventing damage to the machine.

Chiller for Hydraulic Oil

A separate hydraulic unit is equipped with a chiller system to avoid transference of heat and vibration from hydraulic system to the machine.

Spindle and Wheel Head

The extra rigid designed spindle is suitable for heavy duty grinding. The grinding spindle is supported by six pieces of super precision angular contact, preloaded bearings with permanent life time grease lubrications. The interchangeable spindle is mounted in the rigid wheelhead. It is driven by a dynamically balanced 15 HP motor via a flexible coupling to eliminate deflection and vibration. This permits an exceptional grinding quality finish.

Automatic Grinding Cycle

Powerful TLC 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 an control features. Grinding cycles include: Surface, Plunge and crisscross modes.
  • A color touch screen is easy to read ansd simple to operate. Both rough and fine feed rates can be set on the touch screen. The wheelhead can be jogged up and down with use of two push button switches.

Features and Construction

  • Both v-ways of the table are precision ground and hand scraped, they are lubricated by hydro static lubrication system for smoother movements and longer mechanical life. The table moves in the longitudinal axes only while the machine column moves in cross feed axes. The table is fully supported by the base casting even when at either end positions.
  • All 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 vis the push buttons on the control panel.

SPECIFICATIONS

GT Column Surface Grinders 2A-2Axis Automatic, 3A-3Axis Automatic

Model PNC GT 2448 GT 2460 GT 2480 GT 24100 GT 24120 GT 3248 GT 3260 GT 3280 GT 32100 GT 32120
Table Clamping Software (WXL) inch W 24 32
L 53 65 84 104 124 53 65 85 104 124
Maximum Cross Travel Inch 26 33.86
Maximum Grinding Area (inch) W 24 31.89
L 49 61 80 100 120 49 61 80 100 120
Max distance between spindle centre to table MPG inch 31.5 / 39.4 (optional) 31.5 / 39.4 (optional)
Down feed per division MPG inch 0.0001, 0.0005, 0.001 0.0001, 0.0005, 0.001
Down feed per revolution MPG inch 0.01,0.05,0.1 0.01,0.05,0.1
Auto down feed servo motor inch 0.0005-0.002 0.0005-0.002
Longitudinal Table Speed fpm 10-105 10-105
Crossfeed intermittent Inch / feed 0.004-1.57 0.004-1.57
Crossfeed continuous fpm 0-9.5 0-9.5
Crossfeed per division inch 0.0001, 0.001, 0.005 0.0001, 0.001, 0.005
Grinding Wheel Dimensions (ODXIDXWidth)   20X5X2 (20X5X3 optional) 20X5X2 (20X5X3 optional)
Spindle Speed (50/60HZ) (R.P.M)   1450/1720 1450/1720
Spindle Motor HP 15/25 (optional) 15/25 (optional)
Hydraulic pump motor 6 pole HP 7.5 7.5 7.5 7.5 10 7.5 7.5 7.5 7.5 10
Total Power Motor HP 24/34 24/34 24/34 24/34 26.5/36.5 24/34 24/34 24/34 24/34 26.5/36.5
Floor Space (HXWXL) (inch) L 187 211 250 289 329 187 211 250 28- 329
W 117 135
H 96.8 102.7
Net Weight Approx lbs 14300 16060 18920 22000 24200 17380 19140 22220 25300 27940
Chuck Weight lbs 700 800 1190 1490 1790 1200 1310 2070 2590 3100
Maximum workpiece on chuck lbs 2640 3300 3960 3960 4400 2640 3300 3960 3960 4400
  • Model 2A is two axis automatic with rapid deon feed, model 3A is three axis automatic and aut-stop. Y & Z axis are driven by servo motor wth touch screen panel NC control.
  • Manufacturer reserves the right to change or improve specification without notice
  • Saddle movement tyoe grinding area: 6” X 14” ~ 18” X 40”
  • Double column type grinding area: 48”X80” ~ 80” X 240”
  • Arm movement type grinding area: 32”X48” ~ 40”X220”

Standard Accessories

  • Grinding Wheel – 1 Pc.
  • Wheel Flange – 1 set
  • Coolant System – 1 set
  • Tools with box – 1 set
  • Balancing arbour – 1 Pc.
  • Wheel Extractor – 1 set
  • Chiller for hydraulic set – 1 Pc.
  • Hydro static system – 1 set.

Optional Accessories

  • Vertical spindle grinding equipment
  • 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

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