Center Dowel Regular Punches - Metric

This metric center dowel punch is used inside injection and compression die sets where repeatable alignment between the punch assembly and the mating plate is critical. In production tooling, it helps maintain punch guidance during high-cycle molding, reducing drift that can cause part variation and surface defects.

Common scenarios include automotive connector and bracket housings, where consistent cavity/punch alignment supports stable cosmetic and dimensional outcomes. Another application is appliance and consumer electronics housings, where locating stability helps the tooling survive frequent start-stop production. For medical device components requiring tight assembly repeatability, the controlled geometry and wear-focused surface treatment support longer service intervals between regrind or refurbishment.

The CRN-coated variant is suited for these environments because it improves resistance to wear under repeated forming and alignment forces, helping the punch maintain positional reliability over time. Select the point/tip geometry and shank diameter from the available metric ranges to match your guide height and engagement needs.

The provided datasheet specifies a CRN coating for improved wear performance, but it does not list the underlying steel grade or hardness (HRC) values. Because the core material and heat-treatment state are not given, hardness, toughness trade-offs, and specific heat treatment details (e.g., quench & temper, nitriding) cannot be stated from the available information.

What can be confirmed: the CRN-coated surface is intended to increase wear resistance during repeated punch guidance and locating cycles. This typically benefits applications with frequent tool actuation, where sliding/impact contact accelerates wear on dowel surfaces.

• Coating focus: CRN for improved wear resistance and longer service intervals.
• Trade-off note: Without base material and HRC data, toughness vs. wear balance cannot be quantified for this SKU.
• Steel grade comparison: Not provided—if multiple steels are offered for this series, request the material certificate for confirmation.

Select the center dowel punch dimensions to match the mating locating features in your mold insert, ensuring proper engagement depth and guidance without interference.

Shank diameter (D, mm): choose from 10, 13, 16, 20, 25, 32 based on the bore/guide hole size in the die set. Use the correct point/tip shape (H, J, K, L, N, O, R, V, X, Y, Z) to suit your contact geometry and alignment strategy.

Point length (L1, mm): select from 19–25 or 25–30 to achieve the required contact/locating travel. The overall length (L, mm) is fixed across the series as 71–150, so choose a length that fits the stack height and allows full seating.

• P dimension (mm): available 4–16
• W dimension (mm): available 4–10
• R dimension (mm): available in the listed ranges (0.2–4.975 up to 0.2–15.975 depending on configuration)

Because tolerance and fit values are not provided, confirm clearance/press-fit requirements with your mold design drawings or purchase spec; match dimensions primarily to the functional locating surfaces, then verify interference at max assembly and thermal expansion.