
Inch Ejector Punches (XVP Coating)
Inch ejector punches (XVP coating) are designed for reliable part ejection in precision stamping and molding tooling. The XVP surface coating helps reduce friction and improves wear behavior during repeated cycles.
- Inch punch geometry supports consistent ejection in close spaces tooling
- XVP coating improves surface durability for long production runs
- Tooling-compatible tip shapes provide controlled contact and guidance
- Dayton Lamina standardized part number format simplifies internal ordering
Specifications
750 configurations available
| Tip shape | D (Shank dia.) (in) | Jektole group | Standard [S] Point Length B & L (Length) (coded inch) | Alternate [B] Point Length B & L (Length) (coded inch) | Alternate [C] Point Length B & L (Length) (coded inch) | Alternate [D] Point Length B & L (Length) (coded inch) | Alternate [E] Point Length B & L (Length) (coded inch) | P Dimension (in) | W Dimension (in) | R Dimension (in) |
|---|---|---|---|---|---|---|---|---|---|---|
| H | 18(0.1875") | J2 | - | 150 ~ 400 | - | - | - | 0.062 ~ 0.1875 | 0.062 ~ 0.1875 | - |
| H | 18(0.1875") | J2 | 150 ~ 400 | - | - | - | - | 0.062 ~ 0.1875 | 0.062 ~ 0.1875 | - |
| H | 25(0.2500") | J3 | - | 150 ~ 400 | - | - | - | 0.08 ~ 0.25 | 0.08 ~ 0.0929 | - |
| H | 25(0.2500") | J3 | - | 150 ~ 400 | - | - | - | 0.08 ~ 0.25 | 0.093 ~ 0.25 | - |
| H | 25(0.2500") | J3 | 150 ~ 400 | - | - | - | - | 0.08 ~ 0.25 | 0.08 ~ 0.0929 | - |
| H | 25(0.2500") | J3 | 150 ~ 400 | - | - | - | - | 0.08 ~ 0.25 | 0.093 ~ 0.25 | - |
| H | 31(0.3125") | J4 | - | 150 ~ 600 | - | - | - | 0.115 ~ 0.3125 | 0.115 ~ 0.1249 | - |
| H | 31(0.3125") | J4 | - | 150 ~ 600 | - | - | - | 0.115 ~ 0.3125 | 0.125 ~ 0.3125 | - |
| H | 31(0.3125") | J4 | - | - | 175 ~ 600 | - | - | 0.115 ~ 0.3125 | 0.115 ~ 0.1249 | - |
| H | 31(0.3125") | J4 | - | - | 175 ~ 600 | - | - | 0.115 ~ 0.3125 | 0.125 ~ 0.3125 | - |
| H | 31(0.3125") | J4 | 150 ~ 600 | - | - | - | - | 0.115 ~ 0.3125 | 0.115 ~ 0.1249 | - |
| H | 31(0.3125") | J4 | 150 ~ 600 | - | - | - | - | 0.115 ~ 0.3125 | 0.125 ~ 0.3125 | - |
| H | 37(0.3750") | J6 | - | 175 ~ 625 | - | - | - | 0.158 ~ 0.375 | 0.158 ~ 0.1869 | - |
| H | 37(0.3750") | J6 | - | 175 ~ 625 | - | - | - | 0.158 ~ 0.375 | 0.187 ~ 0.375 | - |
| H | 37(0.3750") | J6 | - | - | 175 ~ 625 | - | - | 0.158 ~ 0.375 | 0.158 ~ 0.1869 | - |
| H | 37(0.3750") | J6 | - | - | 175 ~ 625 | - | - | 0.158 ~ 0.375 | 0.187 ~ 0.375 | - |
| H | 37(0.3750") | J6 | 175 ~ 625 | - | - | - | - | 0.158 ~ 0.375 | 0.158 ~ 0.1869 | - |
| H | 37(0.3750") | J6 | 175 ~ 625 | - | - | - | - | 0.158 ~ 0.375 | 0.187 ~ 0.375 | - |
| H | 43(0.4375") | J6 | - | - | 200 ~ 625 | - | - | 0.158 ~ 0.4375 | 0.158 ~ 0.1869 | - |
| H | 43(0.4375") | J6 | - | - | 200 ~ 625 | - | - | 0.158 ~ 0.4375 | 0.187 ~ 0.4375 | - |
| H | 43(0.4375") | J6 | 200 ~ 625 | - | - | - | - | 0.158 ~ 0.4375 | 0.158 ~ 0.1869 | - |
| H | 43(0.4375") | J6 | 200 ~ 625 | - | - | - | - | 0.158 ~ 0.4375 | 0.187 ~ 0.4375 | - |
| H | 50(0.5000") | J6 | - | - | 200 ~ 625 | - | - | 0.158 ~ 0.5 | 0.158 ~ 0.1869 | - |
| H | 50(0.5000") | J6 | - | - | 200 ~ 625 | - | - | 0.158 ~ 0.5 | 0.187 ~ 0.5 | - |
| H | 50(0.5000") | J6 | 200 ~ 625 | - | - | - | - | 0.158 ~ 0.5 | 0.158 ~ 0.1869 | - |
| H | 50(0.5000") | J6 | 200 ~ 625 | - | - | - | - | 0.158 ~ 0.5 | 0.187 ~ 0.5 | - |
| H | 62(0.6250") | J9 | - | - | - | 225 ~ 625 | - | 0.235 ~ 0.625 | 0.25 ~ 0.625 | - |
| H | 62(0.6250") | J9 | - | - | - | 225 ~ 625 | - | 0.235 ~ 0.625 | 0.235 ~ 0.2499 | - |
| H | 62(0.6250") | J9 | 225 ~ 625 | - | - | - | - | 0.235 ~ 0.625 | 0.25 ~ 0.625 | - |
| H | 62(0.6250") | J9 | 225 ~ 625 | - | - | - | - | 0.235 ~ 0.625 | 0.235 ~ 0.2499 | - |
| H | 75(0.7500") | J9 | - | - | - | 225 ~ 625 | - | 0.235 ~ 0.75 | 0.235 ~ 0.3119 | - |
| H | 75(0.7500") | J9 | - | - | - | 225 ~ 625 | - | 0.235 ~ 0.75 | 0.312 ~ 0.75 | - |
| H | 75(0.7500") | J9 | 225 ~ 625 | - | - | - | - | 0.235 ~ 0.75 | 0.235 ~ 0.3119 | - |
| H | 75(0.7500") | J9 | 225 ~ 625 | - | - | - | - | 0.235 ~ 0.75 | 0.312 ~ 0.75 | - |
| H | 87(0.8750") | J9 | - | - | - | 225 ~ 650 | - | 0.235 ~ 0.875 | 0.235 ~ 0.3119 | - |
| H | 87(0.8750") | J9 | - | - | - | 225 ~ 650 | - | 0.235 ~ 0.875 | 0.312 ~ 0.875 | - |
| H | 87(0.8750") | J9 | - | - | - | - | 225 ~ 650 | 0.235 ~ 0.875 | 0.235 ~ 0.3119 | - |
| H | 87(0.8750") | J9 | - | - | - | - | 225 ~ 650 | 0.235 ~ 0.875 | 0.312 ~ 0.875 | - |
| H | 87(0.8750") | J9 | 225 ~ 650 | - | - | - | - | 0.235 ~ 0.875 | 0.235 ~ 0.3119 | - |
| H | 87(0.8750") | J9 | 225 ~ 650 | - | - | - | - | 0.235 ~ 0.875 | 0.312 ~ 0.875 | - |
| H | 100(1.0000") | J9 | - | - | - | - | 250 ~ 650 | 0.235 ~ 1 | 0.235 ~ 0.3119 | - |
| H | 100(1.0000") | J9 | - | - | - | - | 250 ~ 650 | 0.235 ~ 1 | 0.312 ~ 1 | - |
| H | 100(1.0000") | J9 | 250 ~ 650 | - | - | - | - | 0.235 ~ 1 | 0.235 ~ 0.3119 | - |
| H | 100(1.0000") | J9 | 250 ~ 650 | - | - | - | - | 0.235 ~ 1 | 0.312 ~ 1 | - |
| H | 125(1.2500") | J12 | - | - | - | - | 250 ~ 700 | 0.281 ~ 1.25 | 0.281 ~ 0.3119 | - |
| H | 125(1.2500") | J12 | - | - | - | - | 250 ~ 700 | 0.281 ~ 1.25 | 0.312 ~ 1.25 | - |
| H | 125(1.2500") | J12 | 250 ~ 700 | - | - | - | - | 0.281 ~ 1.25 | 0.281 ~ 0.3119 | - |
| H | 125(1.2500") | J12 | 250 ~ 700 | - | - | - | - | 0.281 ~ 1.25 | 0.312 ~ 1.25 | - |
| H | 150(1.5000") | J12 | - | - | - | - | 250 ~ 700 | 0.281 ~ 1.5 | 0.281 ~ 0.3119 | - |
| H | 150(1.5000") | J12 | - | - | - | - | 250 ~ 700 | 0.281 ~ 1.5 | 0.312 ~ 1.5 | - |
Product Guide
Application Scenarios+
These inch ejector punches are used in injection mold and precision stamping tooling where dependable ejection must be maintained through repeated cycles. The geometry options (tip shapes H, J, K, L, N, O, R, V, X, Y, Z) support controlled contact in close-constraint layouts, helping keep ejection consistent when clearances are limited.
- Automotive and appliance housings: where frequent part release cycles require surface wear resistance; the XVP coating is suited for long production runs and reduced friction at the punch-to-part interface.
- Electronics enclosures and fine-feature parts: close spaces around gates and ribs benefit from standardized inch punch formats that simplify fitment to tight ejection zones.
- Medical device component tooling: consistent guidance at the ejector face helps maintain repeatability for small, precision geometries; the XVP surface durability supports stable performance over time.
Choose this coated variant when you need efficient wear performance while operating at tight tolerances and high cycle counts.
Material & Process Details+
The provided product data specifies an XVP coating intended to improve friction behavior and wear resistance for ejector punches in repeated cycling. However, no specific base steel grade, hardness (HRC), or heat-treatment state (e.g., quenched & tempered, nitrided) is included in the input metadata.
- Coating role: XVP is selected for enhanced surface durability at the contact region during ejection.
- Trade-offs: without the underlying steel and tempering details, hardness versus toughness balance (e.g., higher wear resistance often reduces toughness) cannot be confirmed from the given specifications.
For accurate material selection, request the base material grade and the heat-treatment specification associated with your chosen tip shape and group (J2, J3, J4, J6, J9, J12) so you can verify wear behavior and impact tolerance in your mold design.
Sizing & Selection Guide+
Select dimensions by matching the ejector function to your mold cavity/core layout, focusing on shank diameter, point length, and punch profile. Use D (shank dia.) = 18 ~ 250 in to fit the guide and mounting requirements of your tooling.
- Choose tip geometry: select the required tip shape (H, J, K, L, N, O, R, V, X, Y, Z) based on the part undercut/feature contact style and clearance to surrounding walls.
- Set standard length: for point length B & L, use the coded inch range 150 ~ 250 (standard [S]).
- Select alternate length options: depending on your stroke and pocket depth, use alternate [B]/[C]/[D]/[E] ranges such as 150~400, 150~600, 175~625, 200~625, 225~625, 250~650, or 250~700.
Use the P (0.05 ~ 1.625 in) and W (0.062 ~ 0.5 in) dimensions to ensure the working contact zone aligns with your ejection surface. Confirm available tolerance/fit with the punch supplier for guide alignment and safe clearance in close-tolerance tooling.
Frequently Asked Questions
Which tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) are compatible for close-tolerance ejector layouts?+
This series offers multiple tip shape options: H, J, K, L, N, O, R, V, X, Y, Z. For close-constraint tooling, select the tip profile that best matches the part geometry and the available clearance around the ejector zone. If you provide the target contact shape and surrounding wall clearance, the correct tip option within this range can be confirmed.
What shank diameter range (D) does this inch ejector punch series cover?+
The specification lists D (Shank dia.) = 18 ~ 250 in. To size the punch for your mold, match D to the ejector retainer/guide bore and any adjacent clearance-critical features. Verify the guide fit and any mounting interface tolerances with your mold design drawings.
How do I select the correct point length (B & L) when designing for required ejection stroke?+
Point length uses coded inch values for B & L. The standard [S] range is 150 ~ 250, while alternate ranges include 150 ~ 400, 150 ~ 600, 175 ~ 625, 200 ~ 625, 225 ~ 625, 225 ~ 650, 250 ~ 650, and 250 ~ 700. Choose the coded option that matches your required stroke plus safe clearance to the cavity/core surfaces.
What does the XVP coating contribute for ejector wear in high-cycle production?+
The input description states that the XVP surface coating improves surface durability and helps reduce friction during repeated cycles. In wear-prone ejection applications, this can support longer service life by stabilizing the contact condition at the punch face. For exact wear expectations, request the coating thickness and associated test data from the supplier.
Can I confirm base steel grade and hardness (HRC) from the available specifications?+
No. The provided metadata confirms XVP coating and gives dimensional ranges, but it does not list the underlying steel grade, hardness in HRC, or heat treatment state. To complete a hardness/wear/toughness selection for your load and cycle profile, obtain the base material and heat-treatment specification tied to this part number (series code 250300511378).
Need Custom Specifications?
Our engineering team can help with custom configurations, material selection, and volume pricing.





