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G-800

G-800

External Cylindrical Grinder



Model: G-800

Center height: 500mm
Diameter ground (O.D): 50-800mm

Loading capacity: 3000kg

Wheel size: 600x75x305mm

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Product Description

External Cylindrical Grinder



Model: G-800

Center height: 500mm
Diameter ground (O.D): 50-800mm

Loading capacity: 3000kg

Wheel size: 600x75x305mm



Technical Specification


Specification

Unit

G-800

Distance between centers

mm

3000/4000/5000

Center height

mm

500

Dia. ground (O.D)

mm

50-800

Grinding length (O.D)

mm

3000/4000/5000

Loading capacity

kg

3000

Workhead spindle taper

-

Metric 80

Workhead spindle speed

rpm

10-100

Wheelhead spindle speed

rpm

870

Wheelhead rapid feed travel

mm

100

Wheelhead cross travel

mm

550

Wheelhead feed of handwheel per rev. (rough/fine)

mm/rev

4/0.5

Wheelhead feed of handwheel per gra. (rough/fine)

mm/gra

0.02/0.0025

External grinding wheel size

mm

900x75x305

Max. peripheral speed of grinding wheel

m/s

35

Table feed of handwheel per rev.

mm

5

Table swivel angle (CW)

°

1° /1°/1°

Table swivel angle (CCW)

°

3° / 2° /1.5°

Table longitudinal feed speed

m/min

0.1-2.5

Tailstock quill taper

-

Metric 80

Tailstock quill travel

mm

70

External grinding motor power

kw

22

Workhead motor power

kw

15

Gross weight

tons

22/23/26

Packing size (LxWxH)

cm

890/1100/1500x260x230






Product Details


  • G-800 cylindrical grinder is suitable for grinding outer surface of cylinder and taper; UG-630 universal cylindrical grinder is suitable for grinding outer and inner surface of cylinder and taper.

  • The longitudinal movement of the worktable is driven by hydraulic or by handwheel. The worktable can rotate to a certain degree so as to be suitable for grinding taper. 

  • The wheelhead cross feed is driven by hydraulic, which realizes automatic periodical feed and rapid feed. It can also do rough and fine feed through handwheel. 

  • The worktable and wheelhead guideway adopt hydrostatic lubrication, its movement on low speed is smooth. 

  • The spindle is supported by hydrostatic and hydrodynamic bearings of high rigidity, it makes the spindle have high rotary accuracy and perfect rigidity. 

  • The workhead adopts inverter motor to realize stepless speed adjustment.

  • The workhead spindle, wheelhead spindle, internal grinding spindle, coolent pump, hydrodynamic and hydrostatic oilpump are driven by separate motors. 

  • Each moving parts of the machine has electric, hydraulic and mechanic interlock structure the machine is well designed with pleasing appearance, all control lever are centralized in panel make operating easy 

  • The wheel dresser can be assembled on the worktable surface of on the tailstock. 





Standard Accessories


  • Measuring bridge plate

  • Open steady rest

  • Wheel flange

  • Wheel extractor

  • Balancing arbor

  • Grinding wheel

  • Coolant tank

  • Carbide tripped center

  • Driving dog

  • Wheel dresser (Without diamond pen)

  • Work lamp

  • Levelling wedge

  • Internal grinding attachment (UG)

  • 3-jaw chuck (UG)

  • Extension shaft (UG)

  • Internal grinding wheel (UG)

  • Full set tools

  • Operation manual (English edition)





Optional Accessories


  • Balancing stand

  • Magnetic separator

  • Paper filter

  • Center grinding attachment

  • Close steady rest

  • End wheel dresser

  • Radius wheel dress

  • Digital readout




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