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G-320

G-320

External Cylindrical Grinder



Model: G-320

Center height: 180mm
Diameter ground (O.D): 8-320mm
Grinding length: 2000mm

Wheel size: 400x50x203mm

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Product Description

External Cylindrical Grinder



Model: G-320

Center height: 180mm
Diameter ground (O.D): 8-320mm
Grinding length: 2000mm

Wheel size: 400x50x203mm



Technical Specification


Specification

Unit

G-320

UG-320

Distance between centers

mm

1000/1500/2000/3000

1000/1500/2000/3000

Center height

mm

180

180

Dia. ground (O.D)

mm

8-320

8-320

Dia. ground (I.D)

mm

-

30-100

Grinding length (O.D)

mm

1000/1500/2000/3000

1000/1500/2000/3000

Grinding length (I.D)

mm

-

125

Loading capacity

kg

150 (500)

150

Workhead swivel angle

°

-

90°

Workhead spindle taper

-

MT5

MT4

Workhead spindle speed

rpm

26/52/90/130/180/260

25-220 (stepless)

Wheelhead spindle speed

rpm

1100

1670

Wheelhead rapid feed travel

mm

50

50

Wheelhead cross travel

mm

235

246

Wheelhead swivel angle

°

-

±30°

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

mm

2/0.5

2/0.5

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

mm

0.01/0.0025

0.01/0.0025

External grinding wheel size

mm

600x75x305

400x50x203

Max. peripheral speed of grinding wheel

m/s

35

35

Internal grinding spindle speed

rpm

-

10000/15000

Internal grinding wheel size

mm

-

Max: 50x25x13, Min: 17x20x6

Table feed of handwheel per rev.

mm

6

6

Table swivel angle (CW)

°

3° /3°/2°/2°

3°/3°/2°/2°

Table swivel angle (CCW)

°

7° /6° /5° /3°

7°/6°/5°/3°

Table longitudinal feed speed

m/min

0.1-4

0.1-4

Tailstock quill taper

-

MT4

MT4

Tailstock quill travel

mm

30

30

External grinding motor power

kw

11

5.5

Internal grinding motor power

kw

-

1.1

Workhead motor power

kw

0.75/1.5 (1.5/2.4)

1.5

Gross weight

kg

3500/4600/5600/7500

5300/6100/7900/9900

Packing size (LxWxH)

cm

322/422/540/739x200x205

322/422/540/739x200x205






Product Details


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

  • The one-piece bed is made of high quality cast iron, rails surface hardened and precision grinding, high stability and high rigidity.

  • The base table slide way with TF material and been precision manual scraped; The wheel head slide way is V-flat rails with liner-roller, high precision and low motion friction.

  • Times testify: The well designed structure ensure excellent processing capability.

  • For UG-series, the workhead can be rotate to any position within its conterclock direction 90°, so it can be suitable for grinding inner or outer surface of taper.

  • For UG-series, the cylindrical grinding machine has internal grinding apparatus, internal grinding spindle is supported by precise roll-bearing. 

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

  • 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. 

  • Wheelhead spindle is supported by bimetal shell bearing, which make the spindle have high rigidity and stability, ensure heavy, excellent finishing surface.

  • 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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