Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A is a genuine double-acting profile-type cylinder with a Ø50mm bore, 250mm 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.
- BoreØ50 mm
- Stroke250 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A
The SAUF50X250S-08A is a double-acting profile cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One coil signal drives the actuator directly, eliminating remote plumbing and freeing a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 unit of the same bore. The S suffix denotes a piston magnet for CMSG/DMSG/EMSG switches.
Operating within the 0.15-0.8 MPa valve window, this 50mm bore delivers 982N push and 825N pull at 0.5MPa. The 1/4" valve port yields 16mm2 flow (Cv 0.89) at up to 5 cycles/s. The cylinder body rates to 1.0MPa but the assembled unit is capped by the valve. Computed buyer insight: safe working load is ~589N (60% of the 0.5MPa push), enabling a vertical lift of ~50kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 250 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×250 | 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.
Where the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station uses one coil signal to actuate independently, saving manifold space.
Inline Diverter Gate
A packaging line diverter that switches directly via the cap-mounted valve, cutting tubing runs to a central control panel.
Vertical Lift Stopper
Lifts or stops items up to 50kg vertically using the 982N push force, controlled locally without a remote valve bank.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A the Right Choice?
Size against the 63mm bore (1559N push at 0.5MPa) or the 40mm bore (628N push) depending on your load. This 50mm unit runs on AC220V terminal entry with PT threads. The rod retracts when the coil is energised; reposition the valve to reverse this to extend-when-energised. Always size force within the 0.15-0.8 MPa valve range, never the 1.0 MPa cylinder body rating. The built-in valve routes air and is not a lock—add an external rod lock or pilot-operated check valve to hold a load. For this 250mm stroke, guide the load to manage side-load forces.
Quick checklist
- ✓ Force at 0.15–0.8 MPa
- ✓ Coil voltage matches panel
- ✓ Terminal vs grommet entry
- ✓ Retract- or extend-when-energised
- ✓ Load-holding → external rod lock
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250S-08A FAQ
It delivers 982N push and 825N pull at 0.5MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/s max) running on AC220V. Size the force within the 0.15-0.8 MPa valve operating window, as the assembled unit cannot use the 1.0 MPa cylinder body rating.
By default the rod retracts when the coil is energised, but you can reposition the valve to make it extend-when-energised. The valve only routes air; it is not a load lock. The piston will drift on air loss, so add an external rod lock or pilot-operated check valve for load holding.
Related AirTAC Cylinders & Valves
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