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Crankshaft Grinder MQ8260B
Application and Features of FORTUNE MQ8260B Crankshaft Grinder
1. MQ8260B Crankshaft Grinder is simple in construction, easy in operation and wide in application; suitable for grinding the crankshaft pins and journals. MQ8260B Crankshaft Grinder can also be used as cylindrical grinder;
2. Left and right chucks are crisscross and adjustable;
3. Crankshaft Grinder Workpiece is held by centers or by chucks, driven by workhead motor, and fed by hand for grinding;
4. MQ8260B Crankshaft Grinder is controlled by mechanical, electric and hydraulic means; operated mainly by hand;
5. Longitudinal worktable travel of MQ8260B Crankshaft Grinder is realized by manual-drive or motor-drive, with the motor-drive for jump displacement or adjustment;
6. Max. adjustable amount of left and right chucks is 110mm in vertical direction;
7. Workpiece, wheel, worktable, coolant pump and oil pump are driven by their individual motors;
8. MQ8260B Crankshaft Grinding machine Worktable and wheelhead have the hydraulic and electric interlocking mechanism, ensuring the safety even if misoperation whether in adjustment or in the process of grinding.
Technical Specifications of MQ8260B Crankshaft Grinding Machine
|
Item |
MQ8260B |
|
Max. swing dia. over table |
580 mm |
|
Max. crankpin throw |
110 mm |
|
Grinding diameter supported by steady-rest |
30~100 mm |
|
Grinding cylindrical diameter |
30~200 mm |
|
Max. grinding length (clamped by 3-jaw chuck) |
1300 mm |
|
Max. grinding length (clamped by centers) |
1600 mm |
|
Max. workpiece weight |
120 kg |
|
Center height |
300 mm |
|
Workhead spindle speed (three steps) |
25,50,100 r/min |
|
Wheelhead spindle speed |
760 r/min |
|
Max. wheelhead travel along leadscrew |
200 mm |
|
Wheelhead displacement per rev. of feed handwheel |
1 mm |
|
Wheelhead displacement per div. of feed handwheel |
0.005 mm |
|
Rapid wheelhead advance/withdrawal |
100 mm |
|
Max. longitudinal worktable travel |
1600 mm |
|
Oil-pump flow-rate |
11 ml/r |
|
Oil-pump pressure |
6.3 map |
|
Coolant pump flow-rate |
50 l/min |
|
Total motor power |
9.45 kW |
|
Net weight/ Gross weight |
6700/7900 kg |
|
Overall dimensions (LxWxH) |
4000x2100x6130 mm |
|
Package Dimension :LxWxH |
4350 x 2250 x 2000 mm |
Working accuracy of FORTUNE MQ8260B Crankshaft Grinder
|
Roundness |
5µm |
|
Surface roughness |
Ra 0.32µm |
Standard accessories of FORTUNE MQ8260B Crankshaft Grinder
1. Coolant tank: 1 set;
2. Wheel dresser: 1 set;
3. Vertical aligning plate: 1 set;
4. Leveling wedges: 11 set;
5. Left & Right chuck: 1 set/each;
6. End-face dresser: 1 set;
7. Horizontal aligning plate: 1 set;
8. Steady-rest: 1set.
Special acessories of MQ8260B Crankshaft Grinding Machine
1. Suspension-type measuning instrument: 1 set;
2. Correcting device: 1 set;
3. Wheel balancing stand: 1 set.
