Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50S-08B is a genuine double-acting profile-type cylinder with a Ø50mm bore, 50mm 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
- Stroke50 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50S-08B
The SAUF50X50S-08B is a double-acting profile cylinder with a built-in AirTAC 4M210-08 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 makes it shorter than an ISO 15552 cylinder of the same bore. The bore dictates a 1/4" cylinder port and an M16x1.5 rod thread.
Operating within the 0.15-0.8 MPa valve window, it delivers 982 N push and 825 N pull at 0.5 MPa. The 4M210-08 valve flows 16 mm2 (Cv 0.89) at up to 5 cycles per second. The DC24V terminal coil offers IP65 protection and uses a PU tube size of 8x5 mm. For sizing, the safe working load is roughly 589 N (about 60% of the 0.5 MPa push force), translating to a vertical lift capacity of approximately 50 kg with a 2:1 margin. The S suffix denotes a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 50 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 SAUF50X50S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×50 | 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 SAUF50X50S-08B Is Used
Decentralized Conveyor Diverters
Ideal for distributed conveyor lines where fitting a central manifold is impractical, letting one DC24V signal actuate the diverter directly without extra tubing runs.
Independent Clamping Stations
Perfect for multi-station clamping fixtures on large machines, saving manifold slots by self-switching each clamp via the integrated 4M210 valve.
Compact Assembly Pick-Place
Suits space-constrained assembly cells needing a short profile cylinder with a built-in magnet for position confirmation and a 50 kg vertical lift margin.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50S-08B the Right Choice?
Size this 50 mm bore against the neighbouring 40 mm and 63 mm options. At 0.5 MPa it provides 982 N push, sitting between the 40 mm (628 N) and 63 mm (1559 N) variants. Confirm the DC24V terminal entry and PT thread meet your control spec. The default action retracts the rod when energised, but repositioning the valve changes it to extend-when-energised. Always size force within the 0.15-0.8 MPa valve range, not the 1.0 MPa cylinder body rating. The built-in valve routes air and is not a lock; add an external rod lock or pilot-operated check valve to hold loads safely. For strokes of 300 mm or longer, use side-load guides.
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 SAUF50X50S-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/sec max) driven by a DC24V terminal coil. Although the cylinder body rates to 1.0 MPa, you must size force within the assembled valve's 0.15-0.8 MPa operating window.
Yes. The default factory action retracts the rod when energised, but you can reconfigure it to extend-when-energised simply by repositioning the built-in valve. This self-switching design removes the need for a separate remote valve.
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