Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 450mm 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
- Stroke450 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08A
The SAUF40X450S-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 makes it shorter than an ISO 15552 cylinder of the same bore. This unit includes a piston magnet (-S) for CMSG/DMSG/EMSG switches.
Operating within the 0.15-0.8 MPa valve window, it delivers 628 N push and 528 N pull at 0.5 MPa. The 1/4" valve port flows 16 mm2 (Cv 0.89) at up to 5 cycles per second. The AC220V terminal entry coil is IP65 rated. The bore sets the cylinder air port at 1/4". For sizing, the safe working load is roughly 377 N, and vertical lift capacity is about 32 kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 450 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 SAUF40X450S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×450 | 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 SAUF40X450S-08A Is Used
Diverter Gate Actuation
Decentralized sorting line diverter where the integrated valve eliminates long tube runs back to a central manifold, switching the 450 mm stroke directly at the conveyor.
Package Push-off Station
Independent palletizing pusher that uses the built-in 4M210-08 valve to drive the 40 mm bore locally, saving manifold slots and simplifying machine wiring.
Component Transfer Arm
Assembly line transfer mechanism relying on one AC220V coil signal to actuate the 450 mm stroke, reducing plumbing complexity on the factory floor.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08A the Right Choice?
When sizing, compare neighbouring bores: a 32 mm bore yields 402 N push at 0.5 MPa, while a 50 mm bore provides 982 N. This 40 mm bore gives 628 N push and 528 N pull at 0.5 MPa. Always size force within the 0.15-0.8 MPa valve operating range, not the 1.0 MPa cylinder body rating. Confirm the AC220V terminal entry and PT thread meet your electrical specs. The rod retracts when the coil is energised; reposition the valve to reverse this to extend-when-energised. Because the valve only routes air, it is not a load lock—add an external rod lock or pilot-operated check valve to hold a load. The 450 mm stroke exceeds 300 mm, so 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 SAUF40X450S-08A FAQ
It pushes 628 N and pulls 528 N at 0.5 MPa, reaching 1005 N push at 0.8 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/s max). The coil is AC220V with terminal entry. Size the force within the 0.15-0.8 MPa valve window, as the cylinder body rates to 1.0 MPa but the assembled unit is limited by the valve.
By default, the rod retracts when the coil is energised. You can reconfigure it to extend-when-energised simply by repositioning the valve. The valve only routes air; it is not a load lock. If you need to hold a load on air loss, you must add an external rod lock or a pilot-operated check valve.
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