Runner Lock Pins - Straight Shaft, Cone-Shaped Tip

Runner lock pins with a straight lead and cone-shaped tip are used in injection mold runner systems to lock the runner components and maintain consistent location across production cycles. The cone-shaped tip helps self-center during assembly, reducing alignment effort and improving repeatability.

• Automotive and appliance connector molds: In multi-part molds where gate and runner sections must stay registered under vibration and high clamp-force, the secure locking-pin style helps limit runner shift and maintains stable flow path geometry.
• Packaging and household parts: For molds with frequent tool changes or periodic maintenance, the straight shaft improves guidance, while the cone tip supports reliable engagement and consistent lockup after reassembly.
• Electronics housings with tight runner-to-cavity alignment: Selecting the appropriate lock and tip dimensions supports repeatable positioning, which helps reduce knit-line variation caused by small runner misalignment.

This variant is suited because the cone-shaped tip geometry is specifically intended to guide centering and stabilize runner positioning during locking.

The provided specifications for this runner lock-pin series do not include a steel grade or measured hardness. Therefore, material heat-treatment details (e.g., quenched & tempered, nitriding, or pre-hardened condition) and hardness trade-offs cannot be stated from the available data.

When selecting material for runner lock pins in practice, engineers typically balance wear resistance (to resist deformation under repeated engagement) against toughness (to avoid chipping or galling during assembly and cycle loads). If you need a defined recommendation, confirm the catalog material/heat-treatment option and target HRC for your mold environment (runner section steel hardness, ejection conditions, and expected cycle count).

• Note: Compare grades only after verifying the pin’s listed material option, since tolerance and wear performance depend heavily on the specific steel and heat treatment state.

Use the runner lock diameter and tip geometry to match your mold’s runner lock bores and the mating locating features. Start by selecting the Runner Lock Diameter in the available range of 2 ~ 10 mm, then confirm the mating head style using the available Head Diameter options (Normal or Large).

• Tip diameter matching: Choose P (tip diameter) from 0.9 ~ 2.6 mm or Y (tip diameter) from 0.8 ~ 2.5 mm, ensuring clearance/fit with the runner lock socket geometry.
• Engagement length control: Set the B (tip length) from 1 ~ 3 mm, 1.3 ~ 3.8 mm, 1.5 ~ 4.5 mm, 2 ~ 6 mm, or 2.5 ~ 7.5 mm to reach sufficient locking depth without over-insertion.
• Cone length selection: Select S (cone-shaped tip length) from 1.3 ~ 3 up to 5.1 ~ 8 mm to control centering behavior and load transfer.

Dimension designation types must align with your lock layout: L/P/Y, L/P/Y/B, L only, or L/S only. For L (length) select from 10 ~ 100, 15 ~ 100, 20 ~ 100, or 20 ~ 150 mm. The exact tolerance/fit values are not provided; use your assembly drawing and bore tolerance class when determining running clearance.