
Ball Lock Regular Ejector Punches Heavy Duty Inch
Ball lock regular ejector punches heavy duty (Inch) from DAYTON feature a ball-lock interface for secure retention in mold assemblies and consistent ejection. The XAN DayTAN™ coating supports stable wear performance for demanding production cycles.
- Ball-lock style ensures positive positioning during ejection
- XAN DayTAN™ coating helps reduce friction and wear
- Heavy-duty inch format supports robust toolmaking applications
- Ideal for die and mold setups requiring repeatable ejection
Specifications
133 configurations available
| Tip Shape | D (Shank dia.) (in) | L (Length) (coded inch) | P Dimension (in) | W Dimension (in) | R Dimension (in) |
|---|---|---|---|---|---|
| H | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.062 ~ 0.124 | - |
| H | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.125 ~ 0.875 | - |
| H | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.158 ~ 0.187 | - |
| H | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.188 ~ 1.25 | - |
| H | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.25 ~ 1.5 | - |
| H | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.158 ~ 0.249 | - |
| H | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.235 ~ 0.311 | - |
| H | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.312 ~ 1.5 | - |
| H | 87 (0.8750") | 250 ~ 450 | 0.876 ~ 1.75 | 0.235 ~ 0.374 | - |
| H | 87 (0.8750") | 250 ~ 450 | 0.876 ~ 1.75 | 0.375 ~ 1.75 | - |
| H | 100 (1.0000") | 250 ~ 450 | 1.001 ~ 1.75 | 0.235 ~ 0.436 | - |
| H | 100 (1.0000") | 250 ~ 450 | 1.001 ~ 1.75 | 0.437 ~ 1.75 | - |
| H | 125 (1.2500") | 275 ~ 450 | 1.251 ~ 2 | 0.5 ~ 2 | - |
| H | 125 (1.2500") | 275 ~ 450 | 1.251 ~ 2 | 0.281 ~ 0.499 | - |
| J | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.062 ~ 0.124 | - |
| J | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.125 ~ 0.875 | - |
| J | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.158 ~ 0.187 | - |
| J | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.188 ~ 1.25 | - |
| J | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.25 ~ 1.5 | - |
| J | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.158 ~ 0.249 | - |
| J | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.235 ~ 0.311 | - |
| J | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.312 ~ 1.5 | - |
| J | 87 (0.8750") | 250 ~ 450 | 0.876 ~ 1.75 | 0.235 ~ 0.374 | - |
| J | 87 (0.8750") | 250 ~ 450 | 0.876 ~ 1.75 | 0.375 ~ 1.75 | - |
| J | 100 (1.0000") | 250 ~ 450 | 1.001 ~ 1.75 | 0.235 ~ 0.436 | - |
| J | 100 (1.0000") | 250 ~ 450 | 1.001 ~ 1.75 | 0.437 ~ 1.75 | - |
| J | 125 (1.2500") | 275 ~ 450 | 1.251 ~ 2 | 0.5 ~ 2 | - |
| J | 125 (1.2500") | 275 ~ 450 | 1.251 ~ 2 | 0.281 ~ 0.499 | - |
| K | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.062 ~ 0.124 | 0.007 ~ 0.4375 |
| K | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.125 ~ 0.875 | 0.007 ~ 0.4375 |
| K | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.158 ~ 0.187 | 0.007 ~ 0.625 |
| K | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.188 ~ 1.25 | 0.007 ~ 0.625 |
| K | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.25 ~ 1.5 | 0.007 ~ 0.75 |
| K | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.158 ~ 0.249 | 0.007 ~ 0.75 |
| K | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.235 ~ 0.311 | 0.007 ~ 0.75 |
| K | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.312 ~ 1.5 | 0.007 ~ 0.75 |
| K | 87 (0.8750") | 250 ~ 450 | 0.876 ~ 1.75 | 0.235 ~ 0.374 | 0.007 ~ 0.875 |
| K | 87 (0.8750") | 250 ~ 450 | 0.876 ~ 1.75 | 0.375 ~ 1.75 | 0.007 ~ 0.875 |
| K | 100 (1.0000") | 250 ~ 450 | 1.001 ~ 1.75 | 0.235 ~ 0.436 | 0.007 ~ 0.875 |
| K | 100 (1.0000") | 250 ~ 450 | 1.001 ~ 1.75 | 0.437 ~ 1.75 | 0.007 ~ 0.875 |
| K | 125 (1.2500") | 275 ~ 450 | 1.251 ~ 2 | 0.5 ~ 2 | 0.007 ~ 1 |
| K | 125 (1.2500") | 275 ~ 450 | 1.251 ~ 2 | 0.281 ~ 0.499 | 0.007 ~ 1 |
| L | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.062 ~ 0.124 | - |
| L | 37 (0.3750") | 250 ~ 450 | 0.376 ~ 0.875 | 0.125 ~ 0.875 | - |
| L | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.158 ~ 0.187 | - |
| L | 50 (0.5000") | 250 ~ 450 | 0.501 ~ 1.25 | 0.188 ~ 1.25 | - |
| L | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.25 ~ 1.5 | - |
| L | 62 (0.6250") | 250 ~ 450 | 0.626 ~ 1.5 | 0.158 ~ 0.249 | - |
| L | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.235 ~ 0.311 | - |
| L | 75 (0.7500") | 250 ~ 450 | 0.751 ~ 1.5 | 0.312 ~ 1.5 | - |
Product Guide
Application Scenarios+
This heavy-duty ball-lock ejector punch is used in injection mold tooling where the ejector needs secure retention and consistent stroke-to-stroke performance. Its ball-lock interface supports positive positioning in the ejector system, helping prevent shift during repeated cycling.
- Automotive connector and housing molds: suited for high-cycle ejection of parts with draft-sensitive geometry, where stable fit and reliable retention reduce the risk of sticking or misalignment. The XAN DayTAN™ coating helps maintain wear performance under abrasive contact.
- Industrial appliance and appliance-control enclosures: ideal for die and mold setups that require repeatable ejection from thin ribs or bosses. The heavy-duty inch format supports robust toolmaking and maintains performance across demanding production runs.
- Medical device packaging components (non-sterile housings): used where controlled ejection is needed to protect surface finish. The XAN DayTAN™ coating supports lower friction at the punch/plate interface.
Material & Process Details+
The provided specification set does not state a specific steel grade or hardness value. For accurate materials selection and qualification, confirm the base steel grade and heat-treatment condition for series code 250300512560 before final process sign-off.
- Coating function: the XAN DayTAN™ coating is specified to support stable wear performance by reducing friction at the ejector/punch contact surfaces. This improves wear resistance in long-cycle applications.
- Heat treatment: no quenched & tempered, nitriding, or other heat-treatment parameters are included in the input data; therefore, hardness (HRC) and toughness trade-offs cannot be stated from the given specifications.
- Manufacturing process (tool-relevant): ball-lock punches are typically precision-ground for seating surfaces to maintain retention and alignment; the specified tip shape options (H, J, K, L, N, O, R, V, X, Y, Z) indicate a geometry-dependent tip finishing strategy for consistent ejection behavior.
Sizing & Selection Guide+
Use the provided dimensional codes to match the ejector punch to the mold cavity/core ejection layout while maintaining proper retention in the tool.
- Shank (D) selection: choose the shank diameter from the available range 37 ~ 125 in to fit the mating bore and ball-lock pocket in your ejector plate or support component.
- Length (L) selection: select from 250 ~ 450 or 275 ~ 450 (coded inch). Match this to the required protrusion beyond the parting plane and the full stroke travel, including safe clearance at the back end.
- Tip geometry: pick the required tip shape (H, J, K, L, N, O, R, V, X, Y, Z) to control contact area and ejection force distribution on the part surface.
- Interface dimensions: verify P (0.376 ~ 1.251 in) and W (0.062 ~ 1.083 in) against the punch/stop and seating features of your design, including radii/relief indicated by R (0.007 ~ 1 in range options).
Follow the manufacturer’s drawing for tolerance/fit details; the input data provides ranges but not allowable tolerance values.
Frequently Asked Questions
How does the ball-lock interface affect ejector retention and alignment during repeated cycles?+
Which tip shape options (H/J/K/L/N/O/R/V/X/Y/Z) are used to tune ejection contact for different part geometries?+
What coating does this ejector punch use, and how does it relate to wear or friction in the ejector system?+
How should I choose length L for ensuring correct protrusion and clearance?+
Are material grade, heat treatment, and HRC hardness provided for series 250300512560?+
Need Custom Specifications?
Our engineering team can help with custom configurations, material selection, and volume pricing.





