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ISO 21287 compact cylinder, single-acting, spring return, 25 mm bore, 20 mm stroke, female rod thread - E.MC
Spring-return compact cylinder for short clamping and ejecting strokes, 25 mm bore and 20 mm stroke. If pressure drops away, the rod retracts on its own. Operating pressure 2 to 10 bar.
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Description
If the air supply fails, this cylinder retracts by itself. The return spring inside the ISO 21287 compact body brings the 25 mm piston back to its home position after every 20 mm stroke. Tools and pressure pads screw into the M6x1.0 female thread of the piston rod.
Advantages
- Stainless steel piston rod, TPU end cushions
- Test pressure 15 bar, speed 30 to 500 mm/s
- Installation and mounting dimensions to ISO 21287, so it swaps with other compact cylinders built to the same standard
- Spring return, only one air line and one 3/2-way valve required
Applications
- Clamping and holding workpieces that should be released when pressure drops
- Ejecting and pushing off parts with a 20 mm stroke
- Stops and separators that spring back to their home position
Accessories and spare parts
A repair kit for compact cylinders with 25 mm bore is available separately. E.MC offers cylinder switches as accessories for end position sensing via the magnetic piston.
Technical data
| Property | Value |
|---|---|
| Type | compact cylinder to ISO 21287, SF series |
| Operation | single-acting, spring return, with magnetic piston |
| Bore | 25 mm |
| Stroke | 20 mm |
| Piston rod thread | M6x1.0 (female) |
| Air port | M5x0.8 |
| Operating pressure | 2 to 10 bar (0.2 to 1.0 MPa) |
| Test pressure | 15 bar (1.5 MPa) |
| Medium | clean compressed air, filtered to 40 µm |
| Temperature | -20 to 70 °C, no freezing |
| Speed | 30 to 500 mm/s |
| Cushioning | elastic end cushions in TPU |
| Barrel, covers, piston | aluminium alloy |
| Piston rod | stainless steel |
| Seals | NBR piston seal and O-ring, TPU rod seal |
| Weight | 220 g |
| Dimension drawing | in the E.MC datasheet (PDF) |
| Manufacturer | E.MC |
| Hersteller-Nr | SFSBS 25/20 |
| EAN | 4050571929473 |
| Zolltarifnummer | 84123100 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Ausführung | Standard |
| Thread | M 5 |
| Piston Ø [mm] | 25 |
| Stroke [mm] | 20 |
| Norm | ISO 21287 |
| Bore (mm) | 25 |
| Temperaturbereich | -20-70 °C |
Accessories
Questions about this item
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