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.
● 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.
The device can be machined, including ceramics, sapphire, etc.
Size of upper plate(OD*ID*T)
Size of lower plate(OD*ID*T)
Size of dressing wheel(4 pcs)
Thickness=δ=20(diamond modify wheel=δ=25)
outer diameter φ327.5mm ，Z=64
planet wheel（7 pcs）
thickness size according to the thickness of workpiece.
Min. thickness of workpiece
Max size of work piece
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
Vibration of lower lapping plate
The lower grinding disc speed
The upper grinding disc speed
The sun wheel speed
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)
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