Point Larger than Shank Ball Lock Ejector Punches - Light Duty XCN Coating

Ball lock ejector punches with a larger point than the shank are used in injection and press tooling where repeatable part release is critical, but loads are comparatively light. In metal stamping and forming, they support clean ejection from die cavities by maintaining stable ball-lock engagement while the tip geometry helps maintain reliable punch-to-work contact during fast cycles.

For thin-wall or delicate formed components, the larger point helps reduce the risk of incomplete ejection caused by slight misalignment or minor variation in contact pressure. The light-duty configuration is suited for metric tooling families where consistent lock retention is needed without overbuilding thrust capacity.

In fixture and progressive die stations that run frequently, XCN coating is selected to improve wear behavior at the sliding interfaces, supporting longer run life in production environments.

• Metric, light-load ejection in stamping/forming dies
• Ball-lock geometry for consistent retention under cycling
• XCN coating to reduce point and shank wear during ejection

The provided specification focuses on geometry and surface treatment rather than a specific steel grade or heat-treatment condition. As such, the most actionable material-related factor for this variant is the XCN coating, which is intended to improve wear resistance at the ejection and sliding interfaces.

XCN coating is typically selected to manage the trade-off between smooth movement and durability: it helps reduce wear while supporting stable punch motion across frequent press cycles. Compared with uncoated or lighter surface finishes, a coated surface generally improves abrasion resistance and helps maintain ejection performance over longer production runs.

Because no hardness (HRC) value or defined heat-treatment state (e.g., quenched & tempered, nitrided) is included in the input data, hardness and toughness trade-offs cannot be stated precisely for this listing. If your application requires a specific toughness or temper response, confirm the underlying base steel and heat treatment with your tooling requirements.

• Material-specific details (steel grade, HRC) not provided in the dataset
• XCN coating: wear-focused surface enhancement for cycling ejection
• Heat treatment state: not specified in provided data

Select dimensions by matching the punch geometry to the die cavity/core recess and the required ejection travel while ensuring secure ball-lock engagement.

• Shank diameter (D): choose from 13, 16, 20, 25, 32 mm to fit the corresponding guide and seating bore in the die set.
• Point length (L1): use the fixed range 19 to 30 mm to achieve the required contact depth for reliable release without bottoming.
• Total length (L): select within the fixed range 80 to 100 mm to match available die thickness and ejector train stroke limits.
• P dimension: configure based on the listed ranges 13.1–32, 16.1–38, 20.1–40, 25.1–44, 32.1–50 corresponding to your chosen size family.
• Tip shape: select H, J, K, L, N, O, R, V, X, Y, Z to match clearance and ejection contact requirements.

Tolerance & fit considerations: while explicit tolerance values are not provided, maintain proper sliding fit between the D shank and the guide bore. Verify that the chosen L1 and tip shape clear the die opening radius and do not interfere with the ball-lock mechanism during full stroke.