Crankshaft Grinding Machine
Feature:
MQ8260A crankshaft grinding machine is intended for use in automobile, tractor and diesel engine repairing shops to regrind the crankpins and journals of crandshafts. Wheelhead rapid approach and withdrawal is hydraulically effected, the worktable is operated approached either by hand or by power. Power table traverse, either left or right, is momentily actuated by depressing and releasing the electric push button in connection with the desired direction. This arrangement facilitates table spacing for the grinding of the next journal or crankpin.
1.Four different work speeds are obtainable by making use of a double - speed motor and the belts in workhead.
2.Union chucks are used in the headstock and tailstock for adjusting eccentricity up to 120 mm.
3.Friction coupling is used in the headstock transmission chain for its easy adjustment.
4.Table longitudinal traverse is operated either by hand or by power.
5.Wheelhead rapid approach and withdrawal is effected by hydraulic means .
6.Rolling guideways are used on wheelhead and made by high quality material . The wheel spindle being of 80 mm in
diameter has good rigidity and strength.
8.Plastic coated bed ways with less friction.
9.The bed ways and wheelhead ways are lubricated in automatic cycle by means of oil pump.
10.The digital display device can be optional.
| Model | MQ8260Ax1600 | MQ8260Ax1800 | MQ8260Ax2000 |
|---|---|---|---|
| Max. work diameterxMax. length | Φ600x1600 mm | Φ600x1800 mm | Φ600x2000 mm |
| Max. swing over table | Φ600 m | Φ600 m | Φ600 m |
| Work diameter ground | Φ30x100 mm | Φ30x100 mm | Φ50x120 mm |
| Throw of crankshaft | Φ110 mm | Φ110 mm | Φ120 mm |
| Max. work length ground | 1400 mm | 1600 mm | 1800 mm |
| Max. work length ground | 1600 mm | 1800 mm | 2000 mm |
| Max. work weight | 120 kg | 120 kg | 150 kg |
| Centre height | 300 mm | 300 mm | 300 mm |
| Work speed (rpm) | 25,45,95 | 25,45,95 | 30,45,65,100 |
| Max. cross movement | 185 mm | 185 mm | 185 mm |
| Wheelhead rapid approach & withdrawal | 100 mm | 100 mm | 100 mm |
| Wheelhead feed per turn of cross feed handwheel | 1 mm | 1 mm | 1 mm |
| Wheel feed per grad of cross feed handwheel | 0.005 mm | 0.005 mm | 0.005 mm |
| Wheel spindle speed | 740, 890 rpm | 740, 890 rpm | 740, 890 rpm |
| Wheel peripheral speed | 25.6~35 m/sec | 25.6~35 m/sec | 25.6~35 m/sec |
| Wheel size | Φ900x32xΦ305 mm | Φ900x32xΦ305 mm | Φ900x32xΦ305 mm |
| Table traverse per turn | 5.88 mm | 5.88 mm | 5.88 mm |
| Table traverse per turn | 1.68 mm | 1.68 mm | 1.68 mm |
| Table swivel (taper 18/100) | 5° | 5° | 5° |
| Table swivel per grad of scale (taper 1:50) | 10' | 10' | 10' |
| Overall capacity of motor | 9.82 kw | 9.82 kw | 11.2 kw |
| Overall dimension (LxWxH) (mm) | 4166x2037x1584 | 4166x2037x1584 | 4900x2037x1584 |
| Weight | 6000 kg | 6200 kg | 7000 kg |
| Ovality (new standard) | 0.005 | 0.005 | 0.005 |
| Cylindricity | 0.01 | 0.01 | 0.01 |
| Roughness Ra | Ra 0.32 | Ra 0.32 | Ra 0.32 |
Main Products:
Engine Rebuilding,Machine Tools,Auto Maintenance,Lathe,Grinder,Metal Forming Machine,Grinding Machine,Honing Machine,Boring Machine,Measuring Instruments,Milling machine,Drilling Machine,Saws,etc.
