Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08B 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"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08B
The SAUF40X450S-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 cylinder of the same bore. It features a 450mm stroke, a 1/4" cylinder port, and a piston magnet for CMSG/DMSG/EMSG switches.
Operating within the valve's 0.15-0.8 MPa range, this 40mm bore generates 628N push force at 0.5 MPa. The integrated valve provides 16 mm2 flow (Cv 0.89) and handles up to 5 cycles per second. The DC24V terminal coil is IP65 rated. For sizing, the safe working load is roughly 377N, and it can vertically lift about 32kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08B |
|---|---|
| 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 | 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 SAUF40X450S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×450 | 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 SAUF40X450S-08B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station uses one coil signal to actuate independently, skipping a central valve manifold.
Inline Divert Gate
Perfect for a 450mm divert gate on a packaging line, saving tubing runs back to a control cabinet by switching itself locally.
Vertical Lift Stop
Suits a compact 32kg vertical lift stop in a warehouse sorter, using the built-in magnet for end-of-stroke position confirmation.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X450S-08B the Right Choice?
When sizing, compare neighbouring bores: a 32mm bore yields 402N push at 0.5 MPa, while a 50mm bore provides 982N. This 40mm bore gives 628N push and 528N pull at 0.5 MPa. Always size force within the 0.15-0.8 MPa valve window, not the 1.0 MPa cylinder body rating. Confirm the DC24V terminal entry and PT thread suit your control system. The default action retracts the rod when energised, but you can reposition the valve to extend on signal. Because the 450mm stroke exceeds 300mm, use an external guide to prevent rod bending and side-load wear. The valve only routes air; it is not a lock, so add an external rod lock or pilot-operated check valve to hold a load safely.
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-08B FAQ
It generates 628N push and 528N pull at 0.5 MPa. The built-in valve is a 4M210-08 5/2 solenoid with 1/4" port, 16 mm2 flow (Cv 0.89), and a DC24V terminal coil. Although the cylinder body rates to 1.0 MPa, the assembled unit must operate within the valve's 0.15-0.8 MPa window.
Yes. The default configuration retracts the rod when energised, but you can reconfigure it to extend on signal by repositioning the valve. This self-switching design means no remote valve is needed, saving installation time and manifold slots.
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