Return Pin
Flat-tipped robust return pin that resets the ejector plate.
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 8 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| KALA-RPP-01 | 8 | 66 | 2 steps | h7 | return pusher |
| KALA-RPP-02 | 10 | 76 | 2 steps | h7 · ⌀10: 0/−0.015 | return pusher |
| KALA-RPP-03 | 12 | 87 | 2 steps | h7 | return pusher |
| KALA-RPP-04 | 14 | 97 | 2 steps | h7 · ⌀14: 0/−0.018 | return pusher |
| KALA-RPP-05 | 16 | 108 | 2 steps | h7 · ⌀16: 0/−0.018 | return pusher |
| KALA-RPP-06 | 18 | 118 | 2 steps | h7 · ⌀18: 0/−0.018 | return pusher |
| KALA-RPP-07 | 19 | 129 | 2 steps | h7 | return pusher |
| KALA-RPP-08 | 20 | 140 | 2 steps | h7 | return pusher |
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
Return Pin is a Mold & Die Components family precision-turned on a Goodway SW-20, covering 8 variants — diameters ⌀8–20 mm, lengths 66–140 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 ⌀20 mm bar stock; its longest variant is KALA-RPP-08 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-RPP-01: 66 mm long at ⌀8 mm, a length-to-diameter ratio of 8.3. A part this slender needs tailstock support on a conventional lathe. On a sliding-head lathe the guide bushing holds the bar right next to the cutting edge, so the part is machined without a centre.
Variants are machined to h7 tolerance; the smallest is KALA-RPP-01 (⌀8 mm) and the largest KALA-RPP-08 (⌀20 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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