Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X250S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X250S-08B is a genuine double-acting profile-type cylinder with a Ø32mm 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.
- BoreØ32 mm
- Stroke250 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X250S-08B
The SAUF32X250S-08B 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, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 unit of the same bore. The S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
Within the 0.15-0.8 MPa valve operating window, this 32 mm bore generates 402 N push force at 0.5 MPa. The integrated valve has a 1/4 inch port, 16 mm2 flow (Cv 0.89), and handles 5 cycles per second. The cylinder body itself rates to 1.0 MPa, but the assembled unit is limited by the valve. For sizing, a safe working load is roughly 241 N, and it can vertically lift about 20 kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X250S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X250S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/8" |
| Rod thread | M10×1.25 |
| 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 | DC24V · DC 3.0 W |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 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 SAUF32X250S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 32×250 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| B | Coil voltage DC24V. |
| 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 SAUF32X250S-08B Is Used
Gripper Actuation
Decentralized part gripping where the built-in valve opens and closes jaws without routing tubing back to a central manifold.
Lane Diverter
Single-signal sorting gate on a conveyor line, using the compact profile to fit tight transfer spaces.
Small Part Ejector
Pushes machined components out of a fixture at up to 5 cycles per second directly from a local DC24V signal.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X250S-08B the Right Choice?
When selecting, compare this 32 mm bore (402 N push at 0.5 MPa) against the 40 mm neighbor (628 N) to ensure adequate force. The DC24V terminal entry coil must match your control voltage. The rod retracts when energised by default, but you can reconfigure it to extend by repositioning the valve. Always size force within the 0.15-0.8 MPa valve range, never the 1.0 MPa cylinder rating. The valve only routes air; it is not a load lock, so add an external rod lock or pilot-operated check valve to hold a load. For this 250 mm stroke, which is under the 300 mm side-load threshold, standard mounting is fine. The cylinder air port is 1/8 inch and the rod thread is M10x1.25.
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 SAUF32X250S-08B FAQ
It pushes 402 N and pulls 345 N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4 inch port, Cv 0.89). The DC24V coil operates at 0.15-0.8 MPa; do not exceed 0.8 MPa despite the 1.0 MPa cylinder body rating.
Yes. The default action retracts the rod when energised, but you can reposition the valve on the cap to make it extend when energised. This self-switching design means no remote valve is needed.
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