Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125S-08A is a genuine double-acting profile-type cylinder with a Ø63mm bore, 125mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ63 mm
- Stroke125 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125S-08A
The SAUF63X125S-08A is a double-acting profile cylinder with a built-in AirTAC 4M310 5/2 solenoid valve on the cap. One coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The 63mm bore has a 3/8 inch air port, a 20mm rod, and adjustable 21mm cushions. The S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
It pushes 1559N at 0.5MPa. The safe working load is roughly 935N, and it can vertically lift about 79kg with a 2:1 margin. The integrated valve has a 1/4 inch port, Cv 1.4, and runs at 4 cycles per second. The AC220V terminal coil is IP65 rated. Size within the 0.15-0.8MPa valve range, not the 1.0MPa cylinder body limit.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 125 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 3/8" |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 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 SAUF63X125S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 63×125 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAUF63X125S-08A Is Used
Decentralized Clamping
Ideal for large machine grids where running a 63mm actuator from a central manifold wastes tubing. The built-in 4M310 valve switches the clamp locally from one AC220V signal.
Inline Divert Gate
Drives a diverting flap on a conveyor line. The integrated valve handles the 4 cycle per second actuation without needing a remote valve island.
Package Stopper Arm
Acts as a pneumatic stop for heavy boxes. The 1559N push force at 0.5MPa halts items reliably, while the compact profile fits tight conveyor frames.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125S-08A the Right Choice?
Compare this 63mm bore (1559N push at 0.5MPa) against the 50mm bore (982N) or the 80mm bore (2513N) to match your load. The 125mm stroke is above the 75mm minimum and well under the 1500mm maximum. Verify the AC220V terminal entry suits your control panel. The rod retracts by default when energised; reposition the valve to extend on signal. Because the 4M310 valve only routes air, add an external rod lock or pilot-operated check valve to hold loads safely. For this 125mm stroke, side-load is minimal, but always guide the rod for longer travels.
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 SAUF63X125S-08A FAQ
It delivers 1559N push and 1402N pull at 0.5MPa. The built-in valve is a 4M310-08 (1/4 inch port, Cv 1.4, 4 cycles per second). The coil is AC220V with terminal entry. The cylinder body rates to 1.0MPa, but you must size force within the 0.15-0.8MPa operating window of the assembled valve.
Yes. The default action retracts the rod when energised, but you can reconfigure it to extend on signal by repositioning the valve. This self-switching design removes the need for a separate remote valve, saving installation time and manifold space.
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