Ball Lock Regular Ejector Punches Heavy Duty XNAP Coating

These ball-lock ejector punches are used in precision die and mold assemblies where stable retention and repeatable ejection are required. The ball-lock retention feature helps keep the punch securely positioned in the plate, supporting consistent ejection under cycling loads.

• Automotive connector and bracket molds: Regular ejector punches support reliable part separation and reduce misalignment risk when the mold experiences frequent start/stop cycling.
• Consumer appliance and housings: The heavy-duty ball-lock design is suited for higher cycle applications where wear control at the punch contact surfaces improves service life.
• General punch-and-die sets (metric): Use the selected tip shape (H, J, K, L, N, O, R, V, X, Y, Z) to match your die opening geometry and achieve robust ejection accuracy.

Choosing the XNAP-coated variant enhances surface durability, making it particularly appropriate where abrasive wear and friction at the ejection interface are common.

Available materials include M2 and PS4. M2 is a high-speed steel grade known for excellent wear resistance and good toughness for ejector punching and die components; in many industrial references it is aligned with AISI M2 performance. For enhanced sliding durability, the XNAP coating is specified on this heavy-duty series to improve wear resistance and surface durability in ejection service.

• M2 + XNAP: Prioritizes wear resistance; expect a balanced toughness/abrasion trade-off suitable for repeated ejection cycles.
• PS4: Offered as an alternative material option for applications that may require different wear/toughness balance and manufacturing compatibility.

Heat treatment is selected to produce the required service hardness for ejector performance; however, exact HRC and specific heat-treat steps (e.g., quench & temper, nitriding) are not provided in the input data, so they should be confirmed for the exact supplied configuration.

Select dimensions by matching the punch shank and working length to the mold plate and cavity/core layout. For this series, the shank diameter D is 10 ~ 40 mm, so choose the D value that matches your plate bore/guide requirements.

• Point length L1: Options include 10–19, 13–25, and 19–30 mm. Pick the L1 based on required engagement length into the die opening while maintaining safe clearance.
• Total length L: Available in 63–125, 71–125, and 80–125 mm. Set L so the punch reaches ejection travel targets without bottoming in the plate.
• Cross-section details: The P dimension is 1.5 ~ 12 mm, W is 1.5 ~ 14 mm, and R is 0.2 mm; these must align with the selected tip shape (H–Z) and the die geometry.

Because tight retention and repeatability matter for ball-lock punches, confirm the intended fit/tolerance between the ball-lock geometry and the plate pocket/retainer design; the input specifies nominal ranges but not fit tolerances.