Eccentricity of ejector

The sliding part of the typically designed ejector has a clearance of about 0.16 to 0.17 mm maximum. Even if the clearance at the guiding part of the mold is decreased, the dimensional error increases at the leading part of the long ejector pin and, which therefore deviates greatly from the given position. As a result, burr will be formed on the ejector and the ejector pin will be damaged.
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