Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80S-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 80mm 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
- Stroke80 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80S-08B
The SAUF40X80S-08B is a double-acting profile cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One DC24V coil signal drives the actuator directly, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel is shorter than an ISO 15552 unit of the same bore. This 40mm bore pushes 628N and pulls 528N at 0.5MPa, sized within the valve's 0.15-0.8MPa operating window. The 1/4" valve port flows 16mm2 (Cv 0.89) at up to 5 cycles per second.
This S-suffix model includes a piston magnet for CMSG/DMSG/EMSG switches. The cylinder body rates to 1.0MPa, but the assembled unit operates at 0.15-0.8MPa. Based on the 628N push at 0.5MPa, the safe working load is about 377N, and it can vertically lift around 32kg with a 2:1 margin. The bore's air port is 1/4", the rod is Ø16mm with an M12x1.25 thread, and adjustable cushions span 21mm.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 80 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 SAUF40X80S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×80 | 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 SAUF40X80S-08B Is Used
Decentralized Clamping
Ideal for a multi-station machining line where each clamping point needs independent control without routing long tubing back to a central manifold.
Inline Diverters
Powers short-stroke sorting gates on a conveyor, using the built-in valve to switch directly from a local DC24V signal for rapid 5 cycle/sec actuation.
Package Pushers
Drives compact carton push-off arms in packaging zones where space is tight and running separate valve lines to every actuator is impractical.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80S-08B the Right Choice?
Size by force: this 40mm bore delivers 628N push at 0.5MPa; step down to a 32mm bore for 402N, or up to a 50mm bore for 982N. Confirm the DC24V terminal entry and PT threads suit your control panel. The cylinder body rates to 1.0MPa, but the integrated 4M valve restricts the assembled unit to 0.15-0.8MPa. The rod retracts by default when energized; reposition the valve to extend on signal. The valve routes air and is not a lock, so add an external rod lock or pilot-operated check valve to hold loads on air loss. For this 80mm stroke side-load is minimal, but for strokes over 300mm add a guide. The S suffix supports reed or electronic sensors.
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 SAUF40X80S-08B FAQ
It pushes 628N and pulls 528N at 0.5MPa. The built-in valve is a 4M210-08 5/2 solenoid with a 1/4" port, Cv 0.89, and runs on DC24V. The cylinder body rates to 1.0MPa, but the assembled unit operates strictly within the 0.15-0.8MPa valve window.
Yes. The default action retracts the rod when the coil receives a signal, but you can reposition the built-in valve to make the rod extend when energised. This self-switching design eliminates the need for a remote valve.
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