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Double Surface Lapping Polishing Machine

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YHM77110 High precision vertical double-side surface lapping
YHM77110 High precision vertical double-side surface lapping

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.

Typical Applications

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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

Specification

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 φ327.5mmZ=64

planet wheel7 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


Certificate

CE认证

Our R & D team  establish a long - term partnership with National University of Defense Technology , Dalian University of Technology , Hunan University , Central South University , and other renowned institutions . Yuhuan is also research base for Hunan University’s doctoral student,get 5—9 patents per year .

  • has got36 related patents
  • A certificate of international standard products in 2005
  • has passedISO9001 : 2000 international quality system certification, has estabished corporate product standards


Packing and Transportation

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1.Moisture-proof packaging+Wooden Box.
2.Special packing requirements available.


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