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Double Column Grinding Machine

GL Series

Successfully developed by Top-One's R&D team, this machine is excellent for precision grinding on extra large workpieces that also require highly efficient operations.

This series of machine is ruggedly constructed, exhibiting unmatched precise performance. In addition, its crossrail movable type design ensures that the wheel head achieves the highest stability to upgrade the overall grinding quality.

Application :
RAILWAY TRANDSPORT ENERGY SECTOR PETROCHEMICAL INDUSTRY

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FEATURES

Beam Clamping

The beam is clamped securely by hydraulic force in combination with the use of dise springs. This fully prewents the beam from slipping down to eliminate any loss in grinding accuracy.

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Beam Elevation

The beam elevation is driven by an inverter controlled motor that drives a connecting shaft to transmit the two elevation gcrews at the left and right sides. This elevation driving system allows the beam to clovate synchronously at both ends, so as to ensure outstanding leveling accuracy of the beam.

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Double Hydraulic Cylinders' Counter-balance

The beam elewation (Z-axis) is counters balanced by two hydraulic cylinders, enguring exceptionally smooth motion sand the best travel accuracy.

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Horizontal Grinding Head (Standard)

The Top-One GL series Double Column Surface Grinding Machine can be mounted with a horizontal grinding head and a vertical grinding head, allowing surface grinding and angular grinding to be accomplished at a time. With both grinding heads, the increased grinding accuracy and afficiency can be achieved.

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SPECIFICATIONS

Model GL-1700 GL-2200 GL-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
Grinding height 1000~2000 mm 1000~2000 mm 1000~2000 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 400 mm 400 mm 400 mm
W axis travel 850~1850 mm 850~1850 mm 850~1850 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 □22 mm □22 mm
Max. table load 2M:2 /3M:4 /4M:6 Ton 3M:6 /4M:8 /5M:10 /6M:12 Ton 3M:9 /4M:12 /5M:15 /6M:18 Ton
Double V slide distance 700 mm 900 mm 1100 mm
X axis grinding speed 5000~25000 mm/min 5000~25000 mm/min 5000~25000 mm/min
Y axis rapid feed 3000 mm/min 3000 mm/min 3000 mm/min
Z axis rapid feed 2000 mm/min 2000 mm/min 2000 mm/min
Min.Z axis feeding 0.002 mm 0.002 mm 0.002 mm
M.P.G feeding increment 0.002 / x1x10x100 mm 0.002 / x1x10x100 mm 0.002 / x1x10x100 mm
Y-axis motor 2.9 kW 2.9 kW 2.9 kW
Z-axis motor 2.9 kW 2.9 kW 2.9 kW
Vertical spindle motor 12HP/6P (15HP optinal)
Horizontal spindle motor 20HP/4P (25HP optinal)
Grinding wheel Horizontal: 20" x 50 mm x 203 bore / Vertical: 14" x 50 mm x 127 bore
Horizontal spindle speed 300~2000 RPM 300~2000 RPM 300~2000 RPM

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

Model GL-3200 GL-3700
Max. grinding surface (L x W) 4/5/6 x 2.5 M 4/5/6 x 3.0 M
Grinding height 1000~2000 mm 1000~2000 mm
X axis travel 4000~6000 mm 4000~6000 mm
Y axis travel 3000 mm 3500 mm
Z axis travel 750 mm 750 mm
W axis travel 850~1850 mm 850~1850 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 Ton 4M:18 /5M:22 /6M:25 Ton
Double V slide distance 1400 mm 1400 mm
X axis grinding speed 5000~25000 mm/min 5000~25000 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 4.4 kW 4.4 kW
Z-axis motor 2.9 kW 2.9 kW
Vertical spindle motor 15HP/6P (20HP optinal) 15HP/6P (20HP optinal)
Horizontal spindle motor 25HP/4P (30HP optinal) 25HP/4P (30HP optinal)
Grinding wheel Horizontal: 24" x 50 mm x 254 bore / Vertical: 16" x 50 mm x 203 bore
Horizontal spindle speed 300~2000 RPM

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

STANDARD ACCESSORIES

  • Grinding wheel calibrating device(Balancing Stand)
  • Diamond dresser
  • Magnetizer
  • Wheel balancing arbor
  • Horizontal/Vertical grinding wheel
  • Flange(1 set)
  • Heat exchanger for electrical cabinet
  • Hydraulic oil cooler
  • Paper filter(including filtrating paper and coolant tank)
  • Voltage stabilizer
  • Tool box with tools
  • Operation and maintenance manual

OPTIONAL ACCESSORIES

  • Automatic angle positioning device for vertical grinding head
  • Vertical grinding head
  • Grinding wheel
  • Increased spindle speed
  • Increased spindle horsepower
  • Automatic wheel dresser for vertical grinding head
  • Movable swiveling function
  • Fanuc control
  • Mitsubishi control
  • Spared wheel flange set for vertical grinding head
  • Spared wheel flange set for horizontal grinding head
  • Transformer

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GP Series

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