
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08A is a genuine double-acting profile-type cylinder with a Ø50mm bore, 800mm stroke and a built-in 4M210-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
The SAUF50X800S-08A is a double-acting profile-type cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore. It features a piston magnet for CMSG/DMSG/EMSG switches.
Operating within the valve's 0.15-0.8 MPa window, this 50 mm bore generates 982 N push and 825 N pull at 0.5 MPa. The 1/4" valve port delivers a 16 mm2 flow (Cv 0.89) at up to 5 cycles/sec. The AC220V terminal entry coil is IP65 rated. Based on the 0.5 MPa push force, the safe working load is about 589 N, allowing a vertical lift of roughly 50 kg with a 2:1 margin.
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 800 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-08 (5/2) |
|---|---|
| Valve flow | 16.0 mm² (Cv 0.89) |
| Max frequency | 5 cycle/sec |
| Coil voltage | AC220V · AC 3.5 VA |
| Electrical entry | Terminal · IP65 · B class |
| Response time | 0.05 s and below |
| Operating pressure | 0.15 – 0.8 MPa (valve limit) |
| Speed range | 30 – 800 mm/s |
The cylinder rates to 1.0 MPa but the built-in valve operates 0.15–0.8 MPa, so run the assembled SAUF at 0.15–0.8 MPa. Default: rod retracts when the coil is energised (reconfigurable to extend). Specs follow the official AirTAC SAUF datasheet. Port options: PT / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
Sized within the valve's 0.15–0.8 MPa range. Actual usable force is lower than theoretical due to friction and back-pressure.
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×800 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| A | Coil voltage AC220V. |
| I / (blank) | Terminal electrical entry. |
SAUF does not hold its load without air — the valve routes air, it is not a lock. For a held load, add an external rod lock or a pilot-operated check valve.
Decentralized package routing on a long conveyor line, using the built-in valve to switch the 800 mm stroke diverter directly at the station without a remote manifold.
Raising and lowering a 50 kg access gate, where the integrated 4M210-08 valve minimizes tubing runs across the facility and the magnetic piston tracks position.
Operating a long-stroke safety enclosure door, leveraging one-signal switching for rapid deployment and saving valuable space on the main control panel.
Size this 50 mm bore against the 40 mm (628 N push) and 63 mm (1559 N push) neighbors at 0.5 MPa. The 800 mm stroke is well within the 1200 mm maximum but requires an external guide to prevent rod bending under side loads. Confirm the AC220V terminal entry and PT thread meet your supply. The cylinder body rates to 1.0 MPa, but size force strictly within the assembled valve's 0.15-0.8 MPa range. Default action retracts the rod when energized; reposition the valve to extend on signal. The valve only routes air—it cannot hold a load without pressure, so add an external rod lock or pilot-operated check valve for suspended loads.
Quick checklist
It generates 982 N push and 825 N pull at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/sec) driven by an AC220V terminal coil. Although the cylinder body rates to 1.0 MPa, the assembled unit must operate within the valve's 0.15-0.8 MPa window.
By default, the rod retracts when the coil is energized. You can reconfigure it to extend when energized simply by repositioning the built-in valve. This self-switching design means you only need one coil signal per actuator, completely removing the need for a separate remote valve.
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