Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 50mm 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
- Stroke50 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06A
The AirTAC SAUF40X50S-06A is a double-acting profile cylinder with a built-in 4M 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 unit of the same bore. The S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
It uses a 4M210-06 valve with a 1/8" port, Cv 0.78, and 5 cycles/s. The cylinder body rates to 1.0 MPa, but the assembled unit operates at 0.15-0.8 MPa. At 0.5 MPa it pushes 628 N and pulls 528 N. The 1/4" cylinder port and M12x1.25 rod thread are fixed by the 40 mm bore. Computed buyer insight: safe working load is about 377 N (60% of the 628 N push), allowing a 32 kg vertical lift with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 50 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 SAUF40X50S-06A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×50 | 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 SAUF40X50S-06A Is Used
Diverter Gate
Decentralized conveyor sorting where one coil signal per gate saves manifold space and tubing runs.
Clamp Station
Independent machining clamps needing local actuation without routing long air lines back to a central valve island.
Parts Ejector
Machine tool ejection requiring a compact profile cylinder that switches itself directly from an AC220V signal.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06A the Right Choice?
Size force within the 0.15-0.8 MPa valve window. At 0.5 MPa this 40 mm bore pushes 628 N; if you need more force step up to the 50 mm bore (982 N push), or drop to the 32 mm bore (402 N push) for lighter loads. Confirm the AC220V terminal entry and PT thread suit your control system. The default action retracts the rod when energised; reposition the valve to extend on energisation. The built-in valve routes air and is not a load lock—add an external rod lock or pilot-operated check valve to hold a load. The 50 mm stroke meets the 50 mm minimum for this bore. For strokes 300 mm or longer, guide the rod to manage side 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 SAUF40X50S-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). The cylinder body rates to 1.0 MPa, but the assembled unit operates strictly within a 0.15-0.8 MPa window. The coil is AC220V with terminal entry.
By default the rod retracts when the coil is energised. You can reconfigure it to extend when energised simply by repositioning the built-in valve. This self-switching design means no remote valve is needed.
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