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MYM-1321 Special Glass Edging Machine is designed for grinding irregular peripheries and hypotenuse of the flat glass. The processed glass is adsorbed onto a vacuum sucker. A spinning disc or an independent satellite disc, which is driven by a motor enables the head to work moveably on irregular edges of flat glass in a diameter between 700 and 2100mm, or 100 and 700mm. The speed of the spinning disc is adjustable. This machine can also perform semi-automatic grinding on simple irregular glass. When grinding peripheries, rough grinding, fine grinding and polishing are alternatively done by three wheels. When grinding hypotenuse, the angle of the head on the bowel-shape wheel can be obliquely adjusted to fit the angle for grinding.