Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400S-08A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 400mm 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
- Stroke400 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400S-08A
The SAUF40X400S-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 cylinder of the same bore. This -S model includes a piston magnet for CMSG/DMSG/EMSG switches.
It delivers 628 N push and 528 N pull at 0.5 MPa. A practical computed insight sets the safe working load near 377 N, yielding a 32 kg vertical lift capacity with a 2:1 margin. The integrated valve provides 1/4" porting with a 16 mm2 flow (Cv 0.89) and switches up to 5 cycles per second. The cylinder body rates to 1.0 MPa, but you must size force within the valve's 0.15-0.8 MPa operating window. The bore's air port is 1/4" with a default PT thread.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 400 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 SAUF40X400S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×400 | 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 SAUF40X400S-08A Is Used
Decentralized Conveyor Divert
Mounts directly at the divert gate. One AC220V signal actuates the 400 mm stroke without running long tubing back to a central manifold.
Independent Pack Station
Self-contained actuation for a remote packing head. The built-in 4M210 valve and piston magnet simplify localized control wiring.
Machine Tool Loading
Pushes parts into a fixture with 628 N force. The compact profile barrel fits tight cells while saving valuable manifold slots.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400S-08A the Right Choice?
Size this 40 mm bore against the neighboring 32 mm and 50 mm options, using the 628 N push force at 0.5 MPa to match your load. The safe working load is roughly 377 N. Confirm the AC220V terminal entry and PT thread meet your electrical specs. The coil energizes to retract the rod by default; reposition the valve to switch to extend-when-energised. Always operate within the 0.15-0.8 MPa valve pressure range, not the 1.0 MPa cylinder body rating. The integrated valve routes air and is not a lock; for load holding on air loss, add an external rod lock or pilot-operated check valve. At 400 mm stroke, use external guides to prevent rod bending and side-load damage.
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 SAUF40X400S-08A FAQ
It generates 628 N push and 528 N pull at 0.5 MPa. The built-in valve is a 4M210-08 (5/2 solenoid) with 1/4" porting, Cv 0.89, and 5 cycles/s max. The coil is AC220V with terminal entry. Although the cylinder body rates to 1.0 MPa, the assembled unit must operate in the 0.15-0.8 MPa valve window.
By default, energising the AC220V coil retracts the rod. You can reposition the valve to extend-when-energised. The 5/2 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 if you need to hold a load.
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