Straight Ejector Pin
Cylindrical ejector pin with stepped head that pushes the part out of the mold.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| KALA-EJP-01 | 4 | 44 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-02 | 5 | 55 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-03 | 6 | 65 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-04 | 7 | 76 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-05 | 9 | 86 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-06 | 10 | 97 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-07 | 12 | 107 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-08 | 14 | 118 | 2 steps | g6 | DIN 1530 A |
| KALA-EJP-09 | 16 | 128 | 2 steps | g6 · ⌀16: −0.006/−0.017 | DIN 1530 A |
| KALA-EJP-10 | 18 | 140 | 2 steps | g6 · ⌀18: −0.006/−0.017 | DIN 1530 A |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Straight Ejector Pin is a Mold & Die Components family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀4–18 mm, lengths 44–140 mm, standard material Steel (also stainless steel, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀18 mm bar stock; its longest variant is KALA-EJP-10 at 140 mm. The family is produced by turning alone. All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is KALA-EJP-01: 44 mm long at ⌀4 mm, a length-to-diameter ratio of 11.0. This ratio is the very reason sliding-head lathes exist. The guide bushing supports the bar immediately beside the cutting point, so there is no deflection; the same part chatters and drifts in diameter on a conventional lathe.
Variants are machined to g6 tolerance; the smallest is KALA-EJP-01 (⌀4 mm) and the largest KALA-EJP-10 (⌀18 mm). The family includes multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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