Products

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

Inquiry

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(ODIDT)	φ1070×φ495×φ45mm
Size of lower plate(ODIDT)	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 (LWH)	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