Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X350S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X350S-08B is a genuine double-acting profile-type cylinder with a Ø50mm bore, 350mm 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.
- BoreØ50 mm
- Stroke350 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X350S-08B
The SAUF50X350S-08B is a double-acting profile cylinder with a built-in AirTAC 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 cylinder of the same bore. The -S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
It uses a 4M210-08 valve with a 1/4" port, 16 mm2 flow (Cv 0.89), and a 5 cycle/s limit. The bore sets the 1/4" cylinder port and M16x1.5 rod thread. The cylinder body rates to 1.0 MPa, but the assembled unit operates at 0.15-0.8 MPa. Push force is 982 N at 0.5 MPa. A computed buyer insight: safe working load is about 589 N (60% of the 982 N figure), allowing a vertical lift of roughly 50 kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X350S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X350S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 350 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 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 SAUF50X350S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×350 | 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 SAUF50X350S-08B Is Used
Decentralized Conveyor Divert
Mounts directly at the divert lane. One DC24V signal actuates the 350 mm stroke to push parcels, removing the need for a central valve manifold.
Independent Pallet Stop
Ideal for isolated pallet stops on long transfer lines. The integrated 4M210 valve and magnet piston allow local position feedback without remote tubing runs.
Machine Tool Guard Gate
Drives a 350 mm safety gate directly from one terminal connection. The compact profile saves space while delivering 982 N push force at 0.5 MPa.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X350S-08B the Right Choice?
Size by checking both neighboring bores: the 40 mm bore gives 628 N push at 0.5 MPa, while the 63 mm bore gives 1559 N. This 50 mm bore provides 982 N push and 825 N pull at 0.5 MPa. Confirm the DC24V coil and terminal entry suit your control system. The default action retracts the rod when energized, but you can reposition the valve to extend on signal. Always size force within the 0.15-0.8 MPa valve window, not the 1.0 MPa cylinder rating. The valve routes air and is not a load lock; for held loads add an external rod lock or pilot-operated check valve. For the 350 mm stroke, use external guides to prevent rod bending and side-load wear.
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 SAUF50X350S-08B FAQ
It delivers 982 N push and 825 N pull at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/s max) running on DC24V. Although the cylinder body rates to 1.0 MPa, the assembled unit operates strictly within the 0.15-0.8 MPa valve window.
Yes. The default action retracts the rod when energized, but you can reconfigure it to extend by repositioning the built-in valve. This self-switching design means no remote valve is needed, simplifying installation.
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