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MQ8260A

Four different work speeds are obtainable by making use of a double-speed motor and the belts in the headstock.
Union chucks are used in the headstock and tailstock for an adjustable eccentricity up to 120mm.
Friction coupling is used in the headstock transmission chain for its easy adjustment.
Table traverse is operated either by hand or by power.
Rolling guideways are used on wheelhead. And made by high quality material, the wheel spindle being of 80mm in diameter has good rigidity and strength.
The wheel spindle being of 80mm in diameter has good rigidity and strength.
Plastic coated bed ways with less friction.
The bed ways and wheelhead ways are lubricated in automatic cycle by means of oil pump.
Additional synchronizer for headstock and tailstock, i.e. the gears of headstock drive the tailstock to run in synchronism through the connecting spindle, thus. Four different speeds are obtainable. The length of works is ranged from 800mm to 2000mm.

  • MQ8260A
  • WELLON
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Product Description

Main Specifications

MQ8260A

MQ8260A

MQ8260A

Max. Work swing diameter X Max work length

600x1600mm

600x1800mm

600x2000mm

Capacity




Max. Swing over table

600mm

600mm

600mm

Work diameter ground with steady rest

30-100mm

30-100mm

50-120mm

Throw of crankshaft

110mm

110mm

120mm

Max. work length ground




In 3-jaw chuck

1400mm

1600mm

1800mm

Between centers

1600mm

1800mm

2000mm

Max. work weight

120kg

120kg

150kg

Work head




Center height

300mm

300mm

300mm

Work speed

25,45,95r/min

25,45,95r/min

30,45,65,100r/min

Wheel head




Max. Cross movement

185mm

185mm

185mm

Wheel head rapid approach and withdrawal

100mm

100mm

100mm

Wheel feed per turnoff cross fed hand wheel

1mm

1mm

1mm

 Per grad. of cross feed hand wheel

0.005mm

0.005mm

0.005mm

Grinding wheel




Wheel spindle speed (2steps)

740.890r/min

740.890r/min

740.890r/min

Wheel peripheral speed

25.6-35m/sec

25.6-35m/sec

25.6-35m/sec

Wheel size (O.D. x width x Bore)

900x32x305mm

900x32x305mm

900x32x305mm

Table




Table traverse per turn of hand wheel coarse

5.88mm

5.88mm

5.88mm

Fine

1.68mm

1.68mm

1.68mm

Table Swivel (taper 18/100)

5 degree

5 degree

5 degree

Table Swivel per grad of scale (taper 1:50)

10

10

10

Overall capacity of motors

9.82kw

9.82kw

11.12kw

Overall dimensions (L×W×H)

4166x2037x1584

4166x2037x1584

4900x2037x1584

Weight

Approx. 6000kg

Approx. 6200kg

Approx. 7000kg

 

Working Accuracy

Ovality

Cylindricity

Roughness

≤0.01mm

≤0.01mm

Ra 0.32


Standard Accessories

Main Accessories

Jaw chucks

2sets

Wheel dresser

1set

Wheel balancing arbor(Φ80)

1 set

Leveling wedge

11set

Wheel adaptor

1set

Driving dog

1set

Vertical aligning stand

1set

Horizontal aligning stand

1set


Optional Accessories

Optional Accessories (at extra cost)

Wheel Balancing stand HJX-85-04

1set

End dresser

1set

Measuring device of hanging

1set

Digital display device (wheelhead movement)

1 set

Centering device

1 set


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