CLOSED END POP-ON® WITH HARD TOP

• Prevents cuts and tears from sharp edges of retainer, ball release holes or screw holes.
• Increases wear life.
• Lowers operating cost of strippers.

PORTER IN STOCK HARD HAT™ URETHANE POP-ON® STRIPPERS INCH ANS METRIC

Modern ball and head type punch retainers are made with small size blocks with various outside contours which do not have enough wall thickness between the punch hole and the outside edge of the retainer to make a platform for full contact and support of the urethane strippers.

The top of regular urethane strippers overhangs the retainer block and is not reinforced to withstand the pounding damage form the cutting edges of retainers, screw holes and ball release holes during punching operations.

Porter's color coded Hard Hat Pop-On Striper, "co-injection" molded with a tougher and harder urethane top, protects the barrel of the stripper from this damage. A layer of special 75D durameter 3.16" thick urethane on the top end of the Pop-On stripper presents a much tougher surface against cutting edges. This Hard Hat top protects the stripper barrel and shields it from cuts and tears extending the wear life of the closed and stripper.

The "co-injection" molding of two different durameter urethanes into one homogeneous piece is possible only through a carefully controlled, specially developed process and is another innovation form Porter Precision Products Company to extend wear life on piercing tools.