Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X125S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X125S-08B is a genuine double-acting profile-type cylinder with a Ø32mm bore, 125mm 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.
- BoreØ32 mm
- Stroke125 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X125S-08B
The AirTAC SAUF32X125S-08B is a double-acting profile cylinder with a built-in 4M210 5-port 2-position solenoid valve on the cap. One DC24V coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 unit of the same bore. It features a 1/8" cylinder port, an M10x1.25 rod thread, and adjustable 21mm cushions.
Size force within the 0.15-0.8 MPa valve window, where it delivers 402N push and 345N pull at 0.5 MPa. The integrated 4M210-08 valve has a 1/4" port, Cv 0.89, and cycles up to 5 times per second. The computed safe working load is roughly 241N (about 60% of the 0.5 MPa push force), translating to a vertical lift capacity of around 20kg with a 2:1 margin. The S suffix indicates a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X125S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X125S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 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 SAUF32X125S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 32×125 | 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 SAUF32X125S-08B Is Used
Decentralized Clamping
Ideal for independent clamping stations where running a single DC24V signal to each actuator saves tubing and eliminates a central manifold.
Compact Part Ejection
Fits into tight machine cells, using the built-in 4M210 valve to rapidly eject small parts at up to 5 cycles per second.
Independent Diverting
Perfect for decentralized conveyor diverters, allowing local switching without routing air lines back to a main control panel.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF32X125S-08B the Right Choice?
When sizing, compare this 32mm bore (402N push at 0.5 MPa) against the neighbouring 40mm bore (628N push) to ensure adequate force. Confirm the DC24V terminal entry and PT threads match your control system. The default action retracts the rod when energised, but you can reposition the valve to extend on energisation. Operate strictly within the 0.15-0.8 MPa valve range, not the 1.0 MPa cylinder body rating. The integrated valve routes air and does not function as a load lock; add an external rod lock or pilot-operated check valve for suspended loads. For this 125mm stroke, side-load is minimal, but always guide the rod for longer strokes.
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 SAUF32X125S-08B FAQ
It generates 402N push and 345N pull at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89) running on DC24V. You must size the force within the 0.15-0.8 MPa operating window of the valve, even though the cylinder body rates to 1.0 MPa.
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. This self-switching design means no remote valve is needed.
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