
Metric Straight Ejector Punches with XNM Coating
Straight ejector punches (metric) with XNM coating provide reliable ejection performance for die sets used in stamping and forming. The standardized straight punch profile helps maintain stable contact and consistent transfer during production cycles.
- Straight ejector punch geometry for predictable die ejection and stable alignment
- XNM coating supports wear resistance to improve punch service life in production
- Designed for metric setups with selectable L length ranges (50–90 mm)
- Suitable for modular die assemblies requiring consistent ejection repeatability
Specifications
1 configurations available
| L (Length) (mm) | P Dimension (mm) |
|---|---|
| 50 ~ 90 | 5 ~ 16 |
Product Guide
Application Scenarios+
These metric straight ejector punches are used inside die sets to push formed parts out of the impression during stamping and forming. Their straight, stable geometry helps maintain consistent contact across the ejection stroke, which supports repeatable part transfer during high-cycle production.
Common scenarios include automotive and industrial stamping dies, where ejectors must resist wear and maintain alignment under repeated mechanical loading. The XNM coating is suited for these demanding environments because it enhances wear resistance, helping extend punch service intervals.
They are also appropriate for modular die assemblies that require predictable interchangeability of ejector components. With L = 50–90 mm and P = 5–16 mm, you can match punch length and critical profile dimensions to your cavity/core and die layout to keep ejection forces and clearances within target tolerances.
- Reliable die ejection in stamping/forming production cycles
- Improved wear performance with XNM coating
- Consistent straight-profile alignment in modular tooling
Material & Process Details+
The provided specifications describe this ejector punch variant as having an XNM coating, which is selected to improve wear resistance and support longer tool life under repeated ejection. While the base steel grade and heat treatment state are not specified in the provided data, the coating’s role is to reduce surface degradation that typically drives dimensional change in ejectors.
- XNM-coated surface: intended to improve wear resistance during frequent contact and sliding/friction at the die interface.
- Trade-off focus: coating benefits wear performance, while ensuring the straight punch geometry remains stable for alignment.
If you need a specific hardness target (HRC) or a particular heat-treated condition (e.g., quenched & tempered or nitrided), confirm the base material and treatment with the supplier, since they are not included in the current spec sheet.
Sizing & Selection Guide+
Select dimensions by matching the ejector’s engagement requirements in the die set. This product provides L (length) = 50–90 mm and a fixed P dimension = 5–16 mm range, which must correspond to your required penetration depth and physical space in the tooling stack.
- Choose L (50–90 mm): ensure the punch reaches the part/blank contact point by the required amount during the full ejection stroke, without bottoming out against the backing components.
- Choose P (5–16 mm): match the punch’s critical profile dimension to the receiving pocket/guide and the local clearance in the die.
For repeatable ejection, verify that the straight profile can maintain stable alignment across cycles. If your die design uses guided motion, account for practical clearance between the punch and the guide components; tighter fit can improve guidance but may increase friction and wear.
L and P are fixed selectable ranges; select the combination that best fits your cavity/core geometry and die layout rather than mixing mismatched lengths and profile sizes.
Frequently Asked Questions
What length (L) range is available for the metric straight ejector punch?+
How does the P dimension (5–16 mm) affect die-set compatibility?+
What is the purpose of the XNM coating on straight ejector punches?+
Is this punch suitable for modular die assemblies and tool interchangeability?+
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