Steel Block Core Pins No-Tip with Flange

These steel block core pins no-tip with a flange are used inside large die-casting mold tooling to ensure stable core positioning during repeated ejection cycles. The flange provides a positive locating support, helping the pin remain aligned through thermal cycles and mechanical load, which is especially valuable when a machined tip interface is undesirable.

Common scenarios include:

• Die-cast automotive component molds: the flange’s fixed thickness (H = 4–6 mm) supports secure retention in mold block assemblies, improving consistency of core alignment across high-run production.
• Industrial housing and bracket molds: the no-tip geometry reduces sensitivity to tip wear while keeping the locating interface uniform (avoiding R-chamfered positioning).
• Multi-block mold assemblies: variable tip shapes (up to Tip shape = 1–12) allow engineering match to the cavity/core layout while maintaining ejection alignment stability.

Hardened steel options are suited where wear resistance and dimensional stability matter in long production runs.

This product is offered in several hardened steel options: ORVAR SUPREME, SKH51, NAK80, and RIGOR. The available hardness range spans 37–43 HRC, 47–49 HRC, 51–53 HRC, 53–55 HRC, and 61–64 HRC, enabling a selection based on the balance between wear resistance and toughness.

• Higher hardness (61–64 HRC) is typically selected for abrasive conditions to resist wear at the locating/working interface.
• Mid hardness (51–55 HRC) is often used when toughness and micro-chipping resistance are also critical.
• Lower hardness (37–43 HRC) can be beneficial where shock resistance and machining/fit considerations dominate.

Exact heat treatment state is not specified in the provided data; however, the listed hardness values indicate a hardened condition suitable for production mold service.

To select the correct core pin size, match the pin’s working geometry to the receiving feature in your mold block layout. Use the fixed dimensional ranges to control fit and positioning: the outer diameter (P) is 1–20 mm, while the straight section length (N) is 10–70 mm and the overall L is 20–70 mm.

• Determine required insertion depth from your core layout, then choose L = 20–70 mm with N = 10–70 mm to maintain proper clearance and full engagement.
• Select P = 1–20 mm to match the locating bore/guiding pocket diameter tolerance class used in your mold blocks.
• Confirm the tip geometry requirements using Tip shape (1–12) and the tip dimensions: A, E = 0.5–20 mm and J, V = 0.5–19.99 mm / 0.5–20 mm / 0.5–15.01 mm depending on the selected tip shape.

The flange position F = 0–270° and flange thickness H = 4–6 mm should be set to align with assembly constraints in your specific mold block interface. If your design relies on close clearance, specify tight fit based on the P diameter and the receiving pocket tolerances used by your mold standards.