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YHM77110 High precision vertical double-side surface lapping
This Lapping equipment is mainly used for grinding and polishing both sides of the parallel surface of thin metal and hard brittle nonmetal parts, such as valve plate, friction plate, oil pump blades and sapphire etc.
Technical characters
Technical characteristic：
● It uses Gantry structure, with good stability and strong rigidity.
● Maximum pressure is 1500 kg, with double oil cylinder, precisely control of pressure by electro-hydraulic proportional valve.
● Upper tray adopts 304 stainless steel, strong corrosion resistance.
● Both the upper and lower plates are equipped with cooling-heating structure, The surface temperature is controllable.
● The speed of the sun gear, inner gear ring, the upper and lower plates can be adjusted independently, and the overall speed can match each other.
● The machine is compact in size, space saving.
Application
The device can be machined, including ceramics, sapphire, etc.
Performance
Item | Spec. |
Size of upper plate(OD*ID*T) | φ1070×φ495×φ45mm |
Size of lower plate(OD*ID*T) | φ1070×φ495×φ45mm |
Size of dressing wheel(4 pcs) | Thickness=δ=20(diamond modify wheel=δ=25) |
Pin gear | outer diameter φ327.5mm ，Z=64 |
planet wheel（7 pcs） | thickness size according to the thickness of workpiece. |
Min. thickness of workpiece | 0.6mm |
Max size of work piece | φ280mm (diagonal) |
The precision of processed piece | The precision of processed piece: single flatness and parallelism is within 0.006mm, whole workpiece is within 0.008mm. (workpiece with dia 50mm) |
The roughness of work piece surface | no larger than Ra0.15 m, polishing workpiece no larger than Ra0.125 m. |
Flatness of upper and lower lapping plate | 0.035 |
Vibration of lower lapping plate | 0.03 |
The lower grinding disc speed | 10-80rpm(stepless regulation) |
The upper grinding disc speed | 8-50rpm(stepless) |
The sun wheel speed | 5-35rpm(stepless) |
Gear speed | 3-35rpm(stepless) |
The motor of lower plate | 15Kw, rated speed 1440 rpm |
The motor of upper plate | 11Kw, rated speed 1440rpm |
The motor of sun wheel and inner gear | 3Kw, rated speed 1430rpm |
Overall dimension (L*W*H) | 2500×2000×3000mm |
Total weight | 9000kg |
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