Puller Bolts for Three-Plate Mold - Male Thread

These male-thread puller bolts are used in three-plate injection mold assemblies where the mold opening controller must maintain stable separation and controlled tension. The male thread interface supports repeatable engagement during maintenance and mold teardown, helping technicians adjust pulling force without introducing misalignment.

• Three-plate mold maintenance: During periodic inspection, the bolt’s male-thread connection enables secure, incremental tension adjustment to keep the plates registered.
• Automated molding line changeovers: When frequent tool swaps are required, consistent tightening supports predictable opening behavior and reduces variability in plate alignment.
• High-cycle industrial equipment: The design is intended for durable, fatigue-resistant operation to protect critical components under repeated actuation.

With shaft diameters available from 10 to 25 mm and lengths from 100 to 350 mm, this variant can be matched to the required controller spacing and pull stroke for your specific three-plate geometry.

The provided metadata does not specify a steel grade, hardness (HRC), or heat treatment condition for this puller bolt series. As a result, exact statements about wear resistance, toughness trade-offs, or treatments such as quenching & tempering or nitriding cannot be confirmed from the input data.

In practical three-plate mold-opening controller applications, puller bolts are typically selected for a balance of thread wear resistance (to maintain consistent clamp/pull behavior) and core toughness (to resist fatigue loading from repeated opening cycles). Final material specification should be verified against the manufacturer’s drawing for the exact shaft diameter (D) and length (L).

• Confirm on datasheet: steel grade, target hardness in HRC, and any surface treatment for the male thread.
• Compare variants only if listed: different screw types (Male thread vs Enhanced type) may correspond to different thread geometry or wear-focused surface requirements.

Selection is primarily based on matching the controller’s physical envelope and required pull stroke. Choose the shaft diameter D from the available range of 10, 13, 16, 20, or 25 mm to fit the three-plate mold’s mounting and loading requirements.

• Match shaft diameter (D): Use the diameter required by the mold opening controller/stop bolt layout to ensure correct load-bearing capacity and clearance.
• Match installed length (L): Select L = 100 to 350 mm so the bolt fully engages the three-plate assembly under the maximum opening condition, while preserving safe thread engagement.
• Thread compatibility: Verify the male thread type is compatible with the corresponding nut/plate feature used in your mold design.

Tolerances and fit details are not provided in the input data. For engineering release, confirm the thread form, effective engagement length, and any allowable clearance in the mold’s bolting interface drawing to prevent binding or insufficient preload.