Spacer Pin
Spacer pin setting a fixed axial distance between membrane plates.
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 |
|---|---|---|---|---|---|
| MEMB-DSP-03 | 3 | 12 | — | h6 | spacer L12 |
| MEMB-DSP-04 | 4 | 16 | — | h6 · ⌀4: 0/−0.008 | spacer L16 |
| MEMB-DSP-05 | 5 | 20 | — | h6 · ⌀5: 0/−0.008 | spacer L20 |
| MEMB-DSP-05T | 5 | 28 | M4 | 6g | threaded spacer, M4 end |
| MEMB-DSP-06 | 6 | 24 | — | h6 · ⌀6: 0/−0.008 | spacer L24 |
| MEMB-DSP-06T | 6 | 34 | M5 | 6g | threaded spacer, M5 end |
| MEMB-DSP-08 | 8 | 30 | — | h6 · ⌀8: 0/−0.009 | spacer L30 |
| MEMB-DSP-08T | 8 | 42 | M6 | 6g | threaded spacer, M6 end |
| MEMB-DSP-10 | 10 | 36 | — | h6 · ⌀10: 0/−0.009 | spacer L36 |
| MEMB-DSP-12 | 12 | 40 | — | h6 · ⌀12: 0/−0.011 | spacer L40 |
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
Spacer Pin is a Membrane Press Spares family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀3–12 mm, lengths 12–42 mm, standard material Stainless Steel (also 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 ⌀12 mm bar stock; its longest variant is MEMB-DSP-08T at 42 mm. Besides turning, the family requires thread turning (M4, M5, M6). All of it is completed in a single setup, without the part leaving the machine.
The variant with the highest length-to-diameter ratio is MEMB-DSP-06T: 34 mm long at ⌀6 mm, L/D 5.7. This ratio is achievable on a conventional lathe as well; the sliding-head advantage in series work is that the part never leaves the machine, so the size does not drift from variant to variant.
Variants are machined to h6, 6g tolerance classes; the smallest is MEMB-DSP-03 (⌀3 mm) and the largest MEMB-DSP-12 (⌀12 mm). The family includes threaded, 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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