Joen Lih Machinery Co., Ltd.

CNC surface grinding machine CNC double-column surface grinding machin

CNC surface grinding machine CNC double-column surface grinding machine

Joen Lih Machinery Co., Ltd., established in 1988 in Taichung, central Taiwan, , manufactures various types of high-caliber surface grinders, including high precision CNC profile surface grinders, hand-operated surface grinders, and semi-automated precision surface grinders, according to H.T. Lin, president of the company.

Recently the company debuted a new line of high-precision wafer grinding machines for the high-tech industry. The models inherit much from a vertical grinding machine in terms of design. A diamond-outfitted grinding wheel is fitted to the floating spindle, and the machines can perform vertical grinding on hard and brittle workpieces requiring the highest degree of surface accuracy and flatness. One example of this is the use of water-based surface grinding in the semiconductor production, which plays a key role in determining minimum wafer dimensions.

Beyond wafers, the machines are designed for use with ceramics, quartz, glass and gems. The motor of the machine is built in the air-floating spindle. Variable spindle speeds range from 1,000 to 5,000rpm. The air-floating table meets rigid requirements for grinding accuracy. The rapid traverse rate is 300mm/min, and a powerful Fanuc Oi-series controller provides full digital control.

The wafer-grinding machine comes with a diamond-outfitted grinding wheel, ceramic vacuum suction table, spindle temperature controllers, vacuum pump, and toolbox.

There is also an optional precision air dryer, height gauge, and high-precision spindle.

Joen Lih mainly sells the high-precision wafer surface grinding machines to Southeast Asian countries, the United States. (BS)

Joen Lih Machinery Co., Ltd.

Tel: 886-4-2534-9475

Fax: 886-4-2533-9001

E-mail: joenlih@ms14.hinet.net

Website: www.joenlih.com.tw