Mechanical Limit Switches Communicate Mold Components’ Positions

Hasco says its new Z1430/... mechanical limit switches track the positions of moving components in injection molding and punching tools. Using these, molders can know the final positions of ejector assemblies, as well as other moving mold components like core pullers and stripper plates.

The limit switches, which can be used at a maximum mold temperature of 140C, can be adjusted via Hasco’s excenter Z14300/... distance block, with a proven actuation range of 0.8 mm. The switches operate as a normal open contact so that an electronic contact is closed when the switch is pressed.

An internal circuit protects the limit switches from damage if the supply voltage connections are set up incorrectly, preventing the sending of an undesired signal. The testing and adjustment of the limit switch is carried out by the battery-operated testing device Z 141/3.

The limit switches are connected via three-pin connecting cables Z14301/… - Z14304/... with straight or 90-degree angled connectors, both to the mold control and, if necessary, to the testing device. Available in vertical and horizontal design, the switch can be outfitted as needed with a male or female connector for the connecting cable.