Powdered High-Speed Steel Round Stopper Punches Single-Stepped

Single-stepped round stopper punches are used inside progressive dies and large mold tooling to provide repeatable stopping and part location during each press cycle. The flange stopper helps maintain stable contact as the punch advances and retracts, reducing variability that can affect downstream operations.

• Progressive die stopping for small parts: Choose shank diameters from 4–25 mm to match guide and clearance requirements, supporting consistent stop-and-locate indexing.
• Die-casting component tooling: In die-casting applications where cycle counts are high, the powdered high-speed steel base supports abrasion and wear resistance at the stopping interface.
• Surface durability upgrade: When adhesive or abrasive wear is a concern, the optional DLC foundation / WPC surface option improves tool surface durability for extended service life.

This product is made from powdered high-speed steel (HSS), selected for wear resistance in stop-and-locate tooling where the punch repeatedly contacts the same surfaces. Powder metallurgy enables a dense, fine microstructure that supports stable cutting/impact performance under cycling loads.

• Surface treatment options: Offered in without DLC foundation or DLC foundation / WPC. The WPC option with a DLC foundation is intended to enhance surface durability and reduce wear at the contact region.
• Heat treatment state: The provided data specifies the material type and surface options, but does not list a specific hardness (HRC) value or exact quench-and-temper/nitriding recipe.
• Trade-offs: In general, harder surface treatments increase wear resistance, while the underlying HSS maintains toughness to better withstand repetitive load cycles.

Select the stopper punch dimensions by matching the shank and tip geometry to the progressive die or mold cavity/core interface where stopping occurs. The design intent is to achieve stable guidance with controlled clearance, while the flange stopper ensures consistent contact during cycling.

• Choose shank diameter D: Available in 4–25 mm. Use the intended guide bore size and working clearance to select a diameter that maintains proper fit across expected wear.
• Match tip geometry: Tip dimension P ranges 0.5–13 mm, while tip length B is offered in multiple bands (e.g., 2–6, 2–8, 2–10, 2–13, and 11–13).
• Select overall length L: Offered as 40–50, 40–60, or 40–70 based on the available tool stack and required stroke.
• Tolerance/fit considerations: A reference fit tolerance is stated as +0.005/0 for shank diameter control; confirm final clearance with your guide/bushing specifications.
• Configurable vs fixed: Surface treatment is configurable (without DLC foundation / DLC foundation WPC); head thickness and related dimensions include fixed T = 13–25 with variable alteration ranges (TC, LC) depending on the chosen length set.