HYDRAULIC LOCKING CORE PULL CYLINDERS Mold Design & Installation Considerations
The HLCP Cylinder maintains a sliding core in full back (retracted) or full forward (extended) positions. In order for the cylinder assembly to “lock”, the piston must be fully extended forward. This product’s provided spacer plate is placed between the front of the body flange and pocket installation. The spacer plate must be properly ground to ensure suitable fit at the desired mold operation temperature. The adjustment of the spacer plate is important for when the sliding core must “shut off” against an opposing core wall or face, so that plastic flashing is avoided. Positional alignment of the cylinder assembly is achieved by aligning the forward collet of the cylinder body (protrudes forward of the mounting flange) into the mold plate via the outer diameter of the collet. The collet will protrude past the spacer plate. Rotational alignment of the overall assembly is achieved via the mounting screws, as rotational alignment is only used to position the proximity sensors and hydraulic fitting connections and/or hoses within the overall installation. The piston may freely rotate; therefore, if rotational alignment of the sliding core is required, rotational alignment of the sliding core must be achieved via other means. While recommended installation pocket details are based on the cylinder assembly being recessed into the side of the mold plate, it is possible to have the cylinder assembly mounted fully “proud” of the side of the mold plate. However, positional alignment of the cylinder assembly to the mold plate requires the forward collet (protruding forward of the mounting flange of the cylinder body) to be recessed partially into the side of the mold. An overall installation adjustment is required to fit each application, while maintaining minimum clearances for the hydraulic fitting connections and/or hoses, as well as maintaining clearances for the proximity sensors.
Hydraulic Locking Core Pull Cylinder Quote Request Form is also available online
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