Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X125S-06A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X125S-06A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 125mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke125 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X125S-06A
The AirTAC SAUF40X125S-06A is a double-acting profile cylinder with a built-in 4M210-06 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 is shorter than an ISO 15552 cylinder of the same bore. The bore sets the 1/4" cylinder port, while the valve port is 1/8". An S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
Operating in the 0.15-0.8 MPa valve window, it delivers 628 N push and 528 N pull at 0.5 MPa. The AC220V terminal entry coil is IP65 rated. The 4M210 valve flows 14 mm2 (Cv 0.78) at up to 5 cycles/s. For sizing, the safe working load is roughly 377 N, and vertical lift is about 32 kg with a 2:1 margin. The cylinder body rates to 1.0 MPa, but the valve limits the assembled unit to 0.8 MPa.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X125S-06A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X125S-06A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| 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 SAUF40X125S-06A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×125 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAUF40X125S-06A Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station uses one coil signal to actuate independently, saving manifold space.
Inline Divert Gate
Perfect for a conveyor diverter that needs a self-contained actuator, reducing tubing runs back to a central control panel.
Package Stopper Arm
Suits a packaging line stop arm where local switching simplifies installation and the 32 kg vertical lift capacity handles light gates.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X125S-06A the Right Choice?
Size force within the 0.15-0.8 MPa valve range: this 40 mm bore gives 628 N push at 0.5 MPa, sitting between the 50 mm (982 N) and 32 mm (402 N) bores. Confirm the AC220V terminal entry and PT threads match your supply. The rod retracts when the coil energises; reposition the valve to reverse this to extend-when-energised. The built-in valve routes air and is not a lock, so add an external rod lock or pilot-operated check valve to hold a load. For this 125 mm stroke, standard guides handle side loads, but add robust guidance for strokes over 300 mm.
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 SAUF40X125S-06A FAQ
It pushes 628 N and pulls 528 N at 0.5 MPa. The built-in valve is a 4M210-06 (1/8" port, Cv 0.78, 5 cycles/s max) with an AC220V terminal entry coil. The cylinder body rates to 1.0 MPa, but size force within the valve's 0.15-0.8 MPa operating window.
No. The built-in 5/2 valve routes air; it is not a load lock. If air is lost, the piston drifts. For a held load, install an external rod lock or a pilot-operated check valve.
Related AirTAC Cylinders & Valves
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