Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300S-08B is a genuine double-acting profile-type cylinder with a Ø50mm bore, 300mm 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
- Stroke300 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300S-08B
The SAUF50X300S-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 S suffix means a piston magnet is present for CMSG or DMSG switches.
Operating within the 0.15-0.8 MPa valve window, this 50mm bore delivers 982N push and 825N pull at 0.5MPa. The 1/4" valve port gives 16mm2 flow (Cv 0.89) at up to 5 cycles per second. Based on the 0.5MPa push force, the safe working load is roughly 589N, and it can vertically lift about 50kg with a 2:1 margin. The cylinder port is 1/4" and uses PU tube Ø8xØ5.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 300 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 SAUF50X300S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×300 | 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 SAUF50X300S-08B Is Used
Diverter Gate Actuation
Decentralized sorting line diverter where the integrated valve mounts directly on the cylinder, removing long tube runs back to a central manifold.
Package Stopper Arm
Independent stopper on a packaging conveyor; the single DC24V coil signal simplifies control wiring for each individual station.
Clamp Fixture
Machine tool clamping where the 4M210 valve provides rapid 5 cycles per second operation and the magnet allows position confirmation.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300S-08B the Right Choice?
Size force between the 40mm bore (628N push) and 63mm bore (1559N push) alternatives at 0.5MPa. This 50mm unit provides 982N push. Confirm the DC24V terminal entry and PT thread match your supply. The default action retracts the rod when energised, but you can reposition the valve to extend on signal. Size pressure within the 0.15-0.8MPa valve range, not the 1.0MPa cylinder body rating. The valve routes air and does not lock the load; add an external rod lock or pilot-operated check valve for holding. At 300mm stroke, use external guides to prevent rod bending and 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 SAUF50X300S-08B FAQ
It has a 50mm bore delivering 982N push and 825N pull at 0.5MPa. 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 1.0MPa, the assembled unit must operate within the 0.15-0.8MPa valve window.
No, the built-in valve only routes air and is not a load lock. Without air, the piston drifts. For load holding, install an external rod lock or a pilot-operated check valve. The default action retracts when energised, but you can reposition the valve to extend on signal.
Related AirTAC Cylinders & Valves
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