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Double-acting ISO-6432 stainless steel round body pneumatic cylinders. Compact magnetic-piston design across bore sizes 12mm to 25mm with optional adjustable end-of-stroke cushioning — built for hygienic, washdown and food-grade automation environments.
| Part Number | Bore (mm) | Stroke (mm) | Cushion | Price (GBP) | Cart | |
|---|---|---|---|---|---|---|
| SDNU12X25S | 12mm | 25mm | Standard | £47.37 | ||
| SDNU12X50S | 12mm | 50mm | Standard | £49.62 | ||
| SDNU12X75S | 12mm | 75mm | Standard | £53.49 | ||
| SDNU12X100S | 12mm | 100mm | Standard | £53.97 | ||
| SDNU12X125S | 12mm | 125mm | Standard | £54.60 | ||
| SDNU12X150S | 12mm | 150mm | Standard | £57.09 | ||
| SDNU12X175S | 12mm | 175mm | Standard | £59.79 | ||
| SDNU12X200S | 12mm | 200mm | Standard | £62.10 | ||
| SDNU16X25S | 16mm | 25mm | Standard | £53.91 | ||
| SDNU16X50S | 16mm | 50mm | Standard | £56.79 | ||
| SDNU16X75S | 16mm | 75mm | Standard | £58.62 | ||
| SDNU16X100S | 16mm | 100mm | Standard | £60.51 | ||
| SDNU16X125S | 16mm | 125mm | Standard | £61.41 | ||
| SDNU16X150S | 16mm | 150mm | Standard | £62.70 | ||
| SDNU16X175S | 16mm | 175mm | Standard | £64.86 | ||
| SDNU16X200S | 16mm | 200mm | Standard | £66.15 | ||
| SDNU16X25-S-C | 16mm | 25mm | Cushion | £63.99 | ||
| SDNU16X50-S-C | 16mm | 50mm | Cushion | £66.84 | ||
| SDNU16X75-S-C | 16mm | 75mm | Cushion | £68.79 | ||
| SDNU16X100-S-C | 16mm | 100mm | Cushion | £70.65 | ||
| SDNU16X125-S-C | 16mm | 125mm | Cushion | £71.55 | ||
| SDNU16X150-S-C | 16mm | 150mm | Cushion | £72.72 | ||
| SDNU16X175-S-C | 16mm | 175mm | Cushion | £74.88 | ||
| SDNU16X200-S-C | 16mm | 200mm | Cushion | £76.23 | ||
| SDNU20X25S | 20mm | 25mm | Standard | £62.01 |
SDNU cylinders are compact, double-acting pneumatic cylinders built to ISO 6432, the standard for small round-body cylinders. The barrel is stainless steel, which suits washdown areas, food and packaging lines, and other places where corrosion resistance and easy cleaning matter. ISO 6432 sets the mounting and rod dimensions, so these cylinders can usually replace other ISO 6432 cylinders of the same bore and stroke.
The range is small: bore sizes are 12, 16, 20 and 25 mm, with strokes of 25, 50, 75, 100, 125, 150, 175 and 200 mm, giving 56 configurations in total. These bores suit light tasks such as pushing, ejecting, sorting, gating and small clamping duties, where a larger ISO 15552 cylinder would be oversized.
Every SDNU cylinder has a magnetic piston, so cylinder switches can be fitted to sense the end positions. The choice on this page is cushioning. Standard versions have fixed ends, while versions with adjustable end-of-stroke cushioning let you set how the piston slows down at the end of travel. That reduces impact and noise at higher speeds or with heavier loads. Cushioned part numbers end in -S-C, for example SDNU25X200-S-C.
Filter by bore size, stroke and cushioning to find your configuration. Prices are shown in GBP and you can add items to your basket, or contact Valvenok's UK team for help with sizing.
