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Selection of appropriate Cam working load by production volume The table on the right indicates the sliding performance that corresponds to the Cam working load in accordance with the production volume. When the unit is operated for higher efficiency than the specified working load, abnormal wearing or galling may occur on the sliding surface. In addition, if the unit is used with the higher working load than the specified value, the unit must be backed up and the return spring should be reinforced. Easy positioning of pierce retainer Easy installation Easy installation and removal of the cam slide ●Superior maintenance ability due to easy installation/removal of the slide while in the die. ●Removal of the slide is available just by removing a single bolt at the upper section. Therefore, installation of the unit is available without worrying about objects on both sides and rear of the unit. ●Convenient when installing many units in a narrow space. Application of the cam slide safety stopper The cam slide is securely set to the guide shaft. Moreover, the guide shaft is applying the safety stopper with the safety plate. Model Machining Ability (One-million stroke) Machining Ability (Half-million Stroke) Easy piercing by self centering mechanism of the cam slide Ordinarily, pre-positioning by driver alignment was unavoidable before positioning of driver and base for piercing operation. With this cam unit, this process is not required anymore, with a clearance between the cam slide and guide shaft. Location difference between the base and the driver is absorbed in this clearance, easing an assembly. The cam slide is accurately positioned on the V-surface of the driver. Therefore, piercing position is always achieved. One-sided clearance, 0.1 mm or wider Bearing Guide shaft Bearing magnified ●Remove safety plate  . Remove bolt  . @Carry out numerical control machining of mounting hole and dowel pin hole (finishing) of the base and driver on a die. ASecure a driver and a base to a die with a bolt and a dowel pin. BPlace a slide on the secured driver. Set a pierce retainer position. CSecure the pierce retainer on the slide. DInstall the slide on the base. The positioning of pierce retainer is completed. Base Driver Clearance, 0.1 mm or wider Clearance Bottom dead point Shaft Cam slide For Piercing Cam Unit 179