Center Dowel Punches for Heavy Load Metric

Where it’s used: These center dowel punches are installed in heavy-duty injection mold die sets to guide and locate components during press shutoff and repeated cycling.

Scenario 1 – Automotive connector and terminal molds: When long, multi-cavity tooling must maintain registration under high clamp force, the metric shank sizes (D = 10, 13, 16, 20, 25 mm) and selectable point length (L1 = 13–19 mm or 19–25 mm) help control early centering and reduce misalignment after wear.

Scenario 2 – Industrial housings and large parts: For robust housings requiring repeatable core/cavity positioning, fixed overall length (L = 80–130 mm) supports stable engagement depth while the selectable tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) tune contact behavior for controlled guidance.

Scenario 3 – Precision die maintenance programs: DAYTON’s standardized part numbering helps engineers match the correct locating element during refurbishment, ensuring consistent locating geometry across rebuilds.

The provided metadata does not specify the steel grade or heat-treatment state for this DAYTON series. For selection in heavy-load die alignment applications, engineers typically require a balance of wear resistance at the point and toughness to prevent chipping under repeated impact from die closure.

Material/processing considerations (to be confirmed with the manufacturer data sheet):

• Hardened tool steels are commonly used for locating punches to resist point wear and maintain positional repeatability.
• Common heat-treatment routes include quench & temper (for toughness) and surface hardening such as nitriding (to improve sliding/impact wear at the contact zone).
• Select the grade and hardness level to avoid excessive brittleness at the tip while still supporting long-run guidance.

If you share the exact steel grade for series code 250301835198, the hardness (HRC) and specific treatment can be stated precisely.

Step 1: Match the shank diameter (D). Choose D = 10, 13, 16, 20, or 25 mm based on the corresponding clearance/fit engineered between the mating die component and the dowel receiving hole.

Step 2: Set the point length (L1) for engagement depth. The series offers L1 = 13–19 mm or L1 = 19–25 mm. Use the longer range when deeper early guidance is needed; use the shorter range when you must limit penetration to protect surface features during shutoff.

Step 3: Confirm the overall punch length (L). L is fixed to 80–130 mm, supporting tooling thickness and stack-up. Ensure the length accommodates your die insert heights and does not interfere with other components throughout the closure stroke.

Step 4: Select the tip shape and fine geometry. Tip shapes H, J, K, L, N, O, R, V, X, Y, Z and dimensions P (1.5–18 mm), W (1.5–6 mm), and R (0.2–5 / 0.2–6.5 / 0.2–8 / 0.2–10 / 0.2–12.5 mm) should align with the mating pocket/feature to control contact and guidance.

Tolerances/fit: Use engineering prints for hole tolerance and working clearance; the correct D selection is critical for concentricity and repeatable die positioning.