Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 75mm 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
- Stroke75 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08A
The SAUF40X75S-08A is an extruded aluminum profile-type double-acting 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 bore sets a 1/4" cylinder port with an M12x1.25 rod thread, while the valve features a 1/4" port, 16 mm2 flow (Cv 0.89), and a 5 cycle/s limit. This compact profile is shorter than an ISO 15552 cylinder of the same bore.
Operating at AC220V with terminal entry, the coil is IP65 rated. The cylinder body rates to 1.0 MPa, but the integrated valve restricts the assembled working pressure to 0.15-0.8 MPa. The piston includes a magnet for CMSG/DMSG/EMSG switches. At 0.5 MPa it delivers 628 N push and 528 N pull, yielding a computed safe working load of about 377 N and a vertical lift capacity of roughly 32 kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAUF40X75S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×75 | 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 SAUF40X75S-08A Is Used
Decentralized Clamping Station
Uses the built-in 4M210 valve to clamp parts directly at the fixture, removing the need to route tubing back to a central manifold.
Inline Diverter Gate
Switches the diverter with a single AC220V signal, saving manifold space while handling the 628 N push force required to move packages.
Independent Pick-and-Place Head
Mounts directly on the robot arm for standalone actuation, relying on the compact profile and integrated piston magnet for position feedback.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-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 50 mm bore (982 N) and the 32 mm bore (402 N). The 75 mm stroke is above the 50 mm SAUF minimum and well under the 1200 mm max. Confirm the AC220V terminal entry matches your supply. The rod retracts when the coil is energised, but you can reposition the valve to extend on signal. Since the valve only routes air, add an external rod lock or pilot-operated check valve to hold a load. For strokes over 300 mm, guide the rod to manage side loads.
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 SAUF40X75S-08A FAQ
It delivers 628 N push and 528 N pull at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/s max) running on an AC220V terminal-entry coil. Although the cylinder body rates to 1.0 MPa, the assembled unit must operate within the 0.15-0.8 MPa valve window.
By default the rod retracts when the coil is energised. You can reconfigure it to extend-when-energised simply by repositioning the valve on the cap. The valve routes air to drive the cylinder, but it is not a load lock.
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