Zhengzhou Timeway Machine Tool Co., Ltd.
Zhengzhou Timeway Machine Tool Co., Ltd.
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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 | |