Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250S-06B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250S-06B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 250mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke250 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250S-06B
The SAUF40X250S-06B is a double-acting profile cylinder with a built-in AirTAC 4M210-06 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 is shorter than an ISO 15552 cylinder of the same bore. The bore dictates a 1/4" cylinder port and an M12x1.25 rod thread.
This DC24V terminal-entry coil (IP65, 3.0W) switches the 1/8" valve port, flowing 14 mm2 (Cv 0.78) at up to 5 cycles per second. The piston includes a magnet for CMSG/DMSG/EMSG switches. Size force within the 0.15-0.8 MPa valve window. At 0.5 MPa it pushes 628 N and pulls 528 N, yielding a safe working load of roughly 377 N or a 32 kg vertical lift with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250S-06B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250S-06B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 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 SAUF40X250S-06B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×250 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAUF40X250S-06B Is Used
Decentralized Diverters
Drives individual conveyor sorting gates directly from the actuator, removing long tube runs back to a central manifold.
Independent Clamping Stations
Powers standalone machining clamps where installing a remote valve island is impractical or too costly.
Local Package Stops
Controls specific package stops on a packing line using one DC24V signal per cylinder for rapid deployment.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250S-06B the Right Choice?
Select this 40mm bore over the 32mm (402N push) for more thrust, or step up to the 50mm (982N push) if your load exceeds 377N. Confirm the DC24V terminal entry and PT threads match your supply. The cylinder body rates to 1.0 MPa, but the assembled unit operates strictly at 0.15-0.8 MPa. The rod retracts when energised; reposition the valve to reverse this. Because the valve only routes air, add an external rod lock or pilot-operated check valve to hold loads safely. For this 250mm stroke, use SC-series mounts and guide the load to manage side 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 SAUF40X250S-06B FAQ
It pushes 628N and pulls 528N at 0.5MPa, operating within the 0.15-0.8MPa valve window. The built-in 4M210-06 valve has a 1/8" port, 14mm2 flow (Cv 0.78), and runs on a DC24V terminal-entry coil. The cylinder port is 1/4".
Yes. The default action retracts the rod when energised, but you can reposition the built-in valve to make it extend instead. This single-coil setup removes the need for a remote valve while maintaining full 5/2 functionality.
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