Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X150S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X150S-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 150mm 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
- Stroke150 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X150S-08B
The SAUF40X150S-08B is a double-acting profile cylinder with a built-in AirTAC 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 unit of the same bore. The bore sets the 1/4" cylinder port and M12x1.25 rod thread.
Size force within the 0.15-0.8 MPa valve window, where it delivers 628 N push and 528 N pull at 0.5 MPa. The valve flows 16 mm2 (Cv 0.89) at up to 5 cycles per second. Based on the 0.5 MPa push force, the safe working load is about 377 N, and the vertical lift capacity with a 2:1 margin is roughly 32 kg. The -S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X150S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X150S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 150 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 SAUF40X150S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×150 | 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 SAUF40X150S-08B Is Used
Decentralized Conveyor Divert
Mounts directly at a lane diverter on the conveyor frame. The integrated 4M210-08 valve switches the 150 mm stroke locally, removing long tube runs back to a central manifold.
Independent Clamping Station
Acts as a self-contained clamping actuator in a multi-station fixture. One DC24V signal fires the clamp, freeing up manifold slots for other machine functions.
Compact Assembly Pusher
Fits into tight assembly cells where a standard cylinder is too long. The profile barrel and cap-mounted valve keep the footprint small while delivering 628 N push force.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X150S-08B the Right Choice?
When sizing, compare both directions: this 40 mm bore gives 628 N push and 528 N pull at 0.5 MPa, sitting between the 50 mm (982 N push) and 32 mm (402 N push) options. Confirm the DC24V coil, terminal entry, and PT threads suit your control panel. The cylinder body rates to 1.0 MPa, but you must size within the 0.15-0.8 MPa limit of the built-in valve. The rod retracts when the coil is energised; reposition the valve to reverse this to extend-when-energised. Because the 150 mm stroke exceeds 300 mm, ensure external side-load guidance to prevent rod wear. The valve routes air and is not a lock; the piston drifts on air loss, so add an external rod lock or pilot-operated check valve for held 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 SAUF40X150S-08B FAQ
It pushes 628 N and pulls 528 N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5/2 solenoid) running on DC24V. Although the cylinder body rates to 1.0 MPa, the assembled unit operates strictly in the 0.15-0.8 MPa range. The 1/4" cylinder port and M12x1.25 rod thread are fixed by the 40 mm bore.
No. The built-in 5/2 valve routes air but does not lock the piston; the rod drifts if air is lost, and the 21 mm adjustable cushion only decelerates near stroke end. For load holding, install an external rod lock or pilot-operated check valve. Note the rod retracts by default when energised, but you can reposition the valve to extend-when-energised.
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