Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08B 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"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08B
The AirTAC SAUF40X75S-08B is a double-acting profile cylinder with a built-in 4M210-08 5/2 solenoid valve on the cap. One DC24V 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 40mm bore unit has a 1/4" cylinder port, an M12x1.25 rod thread, and a 21mm adjustable cushion.
Operating within the valve's 0.15-0.8 MPa window, it delivers 628N push and 528N pull at 0.5 MPa. The integrated valve flows 16 mm2 (Cv 0.89) at up to 5 cycles/sec. The computed safe working load is roughly 377N (60% of the 0.5MPa push), and the vertical lift capacity is about 32kg with a 2:1 margin. The S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08B |
|---|---|
| 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 | 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 SAUF40X75S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×75 | 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 SAUF40X75S-08B Is Used
Decentralized Clamping
Ideal for a multi-station machining line where each clamping point needs its own DC24V signal without routing long tubes back to a central manifold.
Independent Diverters
Perfect for conveyor sorting gates that switch at up to 5 cycles/sec, saving manifold space by mounting the 4M210-08 valve directly on the cap.
Compact Assembly Stations
Fits neatly into tight cellular manufacturing equipment, using the shorter profile barrel and integrated switching to reduce overall machine footprint.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X75S-08B the Right Choice?
Size force between the 32mm bore (402N push @0.5MPa) and the 50mm bore (982N push @0.5MPa) neighbors. This 40mm bore provides 628N push at 0.5MPa. Confirm the DC24V terminal entry and PT threads suit your control panel. The rod retracts when the coil is energised; reposition the valve to reverse this to extend-when-energised. Size within the 0.15-0.8 MPa valve limit, not the 1.0MPa cylinder body rating. The 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 75mm stroke you are above the 50mm minimum, and no side-load guide is required below 300mm.
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-08B FAQ
It delivers 628N push and 528N pull at 0.5MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/sec) driven by a DC24V terminal coil. Although the cylinder body rates to 1.0MPa, the assembled unit must operate within the valve's 0.15-0.8MPa window.
By default the rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised. The valve only routes air; it is not a load lock. If you need to hold a load during air loss, install an external rod lock or pilot-operated check valve.
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