Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X350S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X350S-08A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 350mm 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.
- BoreØ40 mm
- Stroke350 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X350S-08A
The SAUF40X350S-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, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel is shorter than an ISO 15552 unit of the same bore. The bore sets the 1/4" cylinder port and M12x1.25 rod thread, while the valve features a 1/4" port, 16 mm2 flow (Cv 0.89), and a 5 cycle/s limit.
The integrated valve restricts operating pressure to 0.15-0.8 MPa, even though the cylinder body rates to 1.0 MPa. At 0.5 MPa it delivers 628 N push and 528 N pull. A practical computed insight: size the safe working load around 377 N (60% of the 628 N push force), which suits a vertical lift of roughly 32 kg with a 2:1 safety margin. The AC220V terminal entry coil is IP65 rated, and the S suffix denotes a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X350S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X350S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M12×1.25 |
| 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 | 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 (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 SAUF40X350S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×350 | 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 SAUF40X350S-08A Is Used
Diverter Gate Actuation
Uses one coil signal per lane to push sorting flaps directly on the conveyor frame, cutting tubing runs back to a central manifold.
Packaging Machine Pusher
Ideal for decentralized product rejection, leveraging the 4M210-08 valve and built-in magnet for precise position confirmation.
Compact Assembly Station
Fits a 350 mm stroke into tight machine cells where a standard ISO cylinder would be too long, saving valuable floor space.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X350S-08A the Right Choice?
Size force within the 0.15-0.8 MPa valve window: this 40 mm bore gives 628 N push at 0.5 MPa, sitting between the 32 mm (402 N) and 50 mm (982 N) options. Confirm the AC220V terminal entry and PT threads match your control system. Default action retracts the rod when energized, but you can reposition the valve to extend on signal. 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 the 350 mm stroke, use external guides to prevent rod bending and side-load wear.
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 SAUF40X350S-08A FAQ
It pushes 628 N and pulls 528 N at 0.5 MPa. The built-in 4M210-08 valve has a 1/4" port, Cv 0.89, and runs on AC220V. You must size force within the valve's 0.15-0.8 MPa operating window, not the cylinder body's 1.0 MPa limit.
Yes. The default action retracts the rod when energized, but you can reconfigure it to extend on signal by repositioning the 5/2 valve on the cap. This allows flexible decentralized control without extra remote plumbing.
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