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High Precision Centerless Grinding Machine
Feartures:
1. The layout of the machine is that its grinding wheelhead is fixed and regulating wheelhead is movable.
2. The grinding wheel spindle is supported on multiple long-segment hydrodynamic oil-film bearings and designed in cantilever structure.
3. The regulating wheel spindle is supported on conical sliding bearings with 1:30 taper and also designed in cantilever structure.
4. The regulating wheel feed slide is supported on dovetail needle roller guideway and a differential leadscrew is used for performing feed motion.
5. AC frequency converter is used for changing the regulating wheel speed infinitely.
6. The machine is equipped with the plunge-cut machanism.
Applications:
The High Precision Centerless Grinding Machine is mainly used for through-feed grinding of cylindrical surface of ring- and shaft-type parts, as well as for plunge-cut grinding of various stepped, conical and cylindrical surfaces in semi-automatic operation.
Specifications |
GT1040A |
|
Grinding diameter |
Through feed grinding |
2~40mm |
Infeed grinding |
7~40mm |
|
Max. grinding length with standard work rest |
Through feed grinding |
140mm |
Infeed grinding |
120mm |
|
Grinding wheel specifications |
PSA350x125x127mm |
|
Regulating wheel specifications |
PSA250x125x127mm |
|
Grinding wheel speed |
1870r/min |
|
Regulating wheel speed |
10~180r/min(stepless) |
|
Swiveling angle of regulating wheel |
In vertical plane |
-2°~+4° |
In horizontal plane |
0°~+3° |
|
Feed amount per division of the feed handwheel |
0.002mm |
|
Feed amount per division of the dress |
0.01mm |
|
Height of the centerlines of two wheels to the bottom of work-rest |
190mm |
|
Height of the centerlines of two wheels to the floor |
985mm |
|
Total power |
7.5kw |
|
Power of grinding wheel motor |
1.5kw |
|
Power of regulating wheel motor |
3N~50HZ 380V |
|
Overall dimensions (LxWxH) |
1550x1300x1400mm |
|
Machine weight (approx) |
2000kg |
|
Grinding accuracy |
Roundness |
0.002mm |
Cylindricity |
0.003mm |
|
Surface roughness |
0.32um |
|
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