PLRD Type Parting Lock Actuator Rods for Stripper Plate

PLRD-type parting lock actuator rods are used in injection mold tooling to drive and stabilize the parting lock action on stripper plates. They are especially suited for molds that require repeatable alignment during frequent mold-open and mold-close cycles.

In automotive connector and sensor housings, the lock mechanism helps keep the stripper plate motion consistent while facilitating quick assembly/disassembly during maintenance. The integrated resin sleeve design supports alignment stability, which can reduce binding when tolerances stack up under high-cycle production.

For medical device packaging and molded trays, consistent stripper plate positioning supports stable ejection timing and prevents uneven loading that can affect dimensional control. The PLRD resin sleeve approach is a practical fit when you want predictable guidance during actuator travel while keeping assembly steps smooth and repeatable.

• Use on stripper-plate parting lock stations where alignment must be maintained during cycling
• Select sleeve diameter and rod length to match your lock rail and actuator stroke geometry
• Choose this variant when you need stable guidance during repeated assembly/disassembly

This PLRD series is defined by a resin sleeve that supports alignment stability for the actuator rod during mold assembly and disassembly. The resin sleeve acts as a durable guiding interface, helping reduce misalignment risk under cycling loads.

Because the provided specifications focus on the sleeve diameter D (10, 13, 16, 20 mm) and rod length L (25–50 mm), no steel grade, heat treatment state, hardness (HRC), or post-processing (e.g., nitriding, quenching & tempering) is specified in the input data. Therefore, material properties must be confirmed with the supplier documentation for any steel or core components associated with the actuator rod.

• Wear and toughness trade-off: resin guidance typically prioritizes alignment stability and smooth motion over the extreme wear resistance of fully hardened tool steels.
• For applications needing metal-to-metal abrasion resistance, verify whether the rod and internal features are made from hardened steels and their hardness level.

Select the correct PLRD actuator rod dimensions by matching the resin sleeve diameter (D) and the rod length (L) to the available space and the mechanical interface of your stripper-plate parting lock mechanism.

• Sleeve diameter D (mm): choose from 10, 13, 16, 20 to fit the mating guidance bore/rail dimensions in your mold.
• Rod length L (mm): choose from 25, 30, 35, 40, 45, 50 to provide the required actuator travel and engagement length without bottoming out.

To confirm fit, compare D to the clearance/guidance requirements in your stripper plate and the parting lock housing. Ensure that your design accounts for functional tolerance stack-up across the sleeve, bracket, and actuator interface—especially if multiple components are replaced during maintenance.

In this series, D and L are configurable fixed options (discrete sizes), so select the combination that best matches your cavity/core and lock geometry rather than attempting to modify dimensions.