Close Space Punches Metric XNP Coating

Close-space punches with XNP surface support are used in injection and forming tooling where die layouts are compact and available clearance is minimal. In these tight shut-off areas, the close-space geometry helps maintain stable punch alignment during repeated strokes, reducing risk of misfeed, scoring, and variation in formed features.

• Automotive small-feature forming and trimming: suited for short, high-cycle die sections where shank interference is a concern and consistent punch positioning improves part-to-part repeatability.
• Appliance and housing insert punching: the metric sizing and specified shank diameters (D = 2–7 mm) allow integration into standardized tool pockets for reliable shut-off behavior.
• Electronics accessory production: XNP coating supports improved wear resistance, helping punches maintain smoother punching action over long production runs.

The specified P dimension range (0.8–6.01 mm) and lengths (L = 40–100 mm) support tight cavity die design while keeping tooling dimensions predictable for press-side integration.

The provided specifications describe the close-space geometry and XNP coating for wear-focused performance, but they do not specify the base steel grade, pre-heat treatment state, or hardness (HRC). For selection and downstream machining planning, request the material certificate for the exact steel grade used by the DAYTON LAMINA standard punch.

In general, an XNP surface treatment is chosen to improve wear resistance and help maintain smooth punching at high cycle counts. The key trade-off is that hard, wear-oriented surface treatments can be more sensitive to edge chipping if impact loads or misalignment occur—making close-space alignment critical.

• Coated variants: typically prioritize wear resistance for longer runs.
• Uncoated or different coating systems: may offer lower surface hardness but can be easier to rework depending on shop capabilities.

Because HRC and heat treatment details are not included in the input data, do not substitute values from other product families without confirmation.

To select the correct close-space punch, match your tool cavity/core requirements to the provided metric dimensions. The key variables are the shank diameter D (2, 3, 4, 5, 6, 7 mm), the punch length L (40–100 mm), and the close-space parameter P (0.8–6.01 mm).

• Step 1: Choose shank diameter (D) to fit the die set guide/punch hole and ensure proper concentricity for stable shut-off action.
• Step 2: Set working length (L) within 40–100 mm so the punch reaches the intended forming depth without bottoming or overtravel.
• Step 3: Verify P dimension between 0.8 and 6.01 mm to align with the close-space geometry needed for tight cavities.

If your die design uses close tolerances, account for press-fit and punch clearance in the corresponding tooling bore. The available dimensions are configurable by selecting from the allowed D values and L within the stated range; P is also selected from within 0.8–6.01 mm. Specific tolerance values are not provided in the input, so confirm tolerance requirements with your die standard.