double-column-grinding-machine-gp-series gp-structure gp-2

Double Column Grinding Machine

GP Series

With a massive and rigid construction, the GP series double column surface grinding machine from Top-One is designed and built for precision grinding for extra-large work pieces. This series of machine is equipped with a horizontal grinding head as standard equipment, and a vertical wheel head is available upon request. High precision Z-axis downfeed can reach 2 µm, which will fully meet high accuracy grinding requirements.

Application :
RAILWAY TRANDSPORT

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FEATURES

Crossrail Movable Type

  • The ruggedly constructed beam provides a solid support for the horizontal and vertical grinding heads, resulting in outstanding stability during grinding operations.
  • The grinding head movement (Y-axis) is individually driven by a servo motor and transmitted through a precision ball screw for high positioning accuracy.

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SPECIFICATIONS

Model GP-1700 GP-2200 GP-2700
Max. grinding surface (L x W) 2/3/4 x 1.2 M 3/4/5/6 x 1.6 M 3/4/5/6 x 2.0 M
Machining height 750 / 1000 /1250 mm
X axis travel 2000~4000 mm 3000~6000 mm 3000~6000 mm
Y axis travel 1500 mm 2000 mm 2500 mm
Z axis travel 750 (1000~1250) mm
Distance between columns 1700 mm 2200 mm 2700 mm
Table size (length) 2000~4000 mm 3000~6000 mm 3000~6000 mm
Table size (width) 1200 mm 1600 mm 2000 mm
T-slot □22 mm
Max. table load 2M:2 /3M:4 /4M:6 Ton 3M:6 /4M:8 /5M:10 /6M:12 Ton 3M:6 /4M:8 /5M:10 /6M:12 Ton
Double V slide distance 700 mm 900 mm 1100 mm
X axis grinding speed 5000~30000 mm/min
Y axis rapid feed 3000 mm/min
Z axis rapid feed 2000 mm/min
Min. Z axis feeding 0.002 mm
M.P.G feeding increment 0.002 / x1x10x100 mm
Y-axis motor Y-travel 750 mm: 4.4 kW (Y-travel 1000, 1250 mm: 5.5 kW)
Z-axis motor Z-travel 750 mm: 2.9 kW (Y-travel 1000, 1250 mm: 4.4 kW)
Vertical spindle motor 12HP/6P (15HP optinal)
Horizontal spindle motor 20HP/4P (25HP optinal)
Grinding wheel Horizontal: 508 mm x 50 mm x 203 bore / Vertical: 355 mm x 50 mm x 127 bore
Horizontal spindle speed 300~2000 RPM

*Note:The machine specifications,dimensions and design characteristics are subject to change without prior notice.

Model GP-3200 GP-3700
Max. grinding surface (L x W) 4/5/6 x 2.5 M 4/5/6 x 3.0 M
Machining height 750 / 1000 /1250 mm 750 / 1000 /1250 mm
X axis travel 4000~6000 mm 4000~6000 mm
Y axis travel 3000 mm 3500 mm
Z axis travel 750 (1000~1250) mm 750 (1000~1250) mm
Distance between columns 3200 mm 3700 mm
Table size (length) 4000~6000 mm 4000~6000 mm
Table size (width) 2500 mm 3000 mm
T-slot □24 mm □24 mm
Max. table load 4M:15 /5M:18 /6M:22 4M:18 /5M:22 /6M:25
Double V slide distance 1400 mm 1400 mm
X axis grinding speed 5000~30000 mm/min 5000~30000 mm/min
Y axis rapid feed 3000 mm/min 3000 mm/min
Z axis rapid feed 2000 mm/min 2000 mm/min
Min. Z axis feeding 0.002 mm 0.002 mm
M.P.G feeding increment 0.002 / x1x10x100 mm 0.002 / x1x10x100 mm
Y-axis motor Y-travel 750 mm: 4.4 kW (Y-travel 1000, 1250 mm: 5.5 kW)
Z-axis motor Z-travel 750 mm: 2.9 kW (Y-travel 1000, 1250 mm: 4.4 kW)
Vertical spindle motor 15HP/6P (20HP optinal)
Horizontal spindle motor 25HP/4P (30HP optinal)
Grinding wheel Horizontal: 610 mm x 50 mm x 254 bore / Vertical: 405 mm x 50 mm x 203.2 bore
Horizontal spindle speed 300~2000 RPM 300~2000 RPM

*Note:The machine specifications,dimensions and design characteristics are subject to change without prior notice.

STANDARD ACCESSORIES

  • Grindstone calibrate base
  • Diamond cutting knife
  • Magnetic base
  • Grinding wheel balancing correction table
  • Horizontal grinding wheel(510(OD)x203.2(ID)x65(T) mm)
  • 8" Flange(Including stone reject)
  • Electrical control box with heat exchange coolant
  • Hydraulic circulating cooler
  • Paper tape filter(Including filter paper and water tank)
  • AVR
  • Tool box

OPTIONAL ACCESSORIES

  • Vertical grinding head
  • Grinding wheel
  • Increase spindle speed
  • Increase the power of spindle motor
  • Auto. rotating for vertical grinding head(incl. servo driver & hydraulic brake)
  • Spare vertical grinding stone flange
  • Spare horizontal grinding stone flange

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