Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50-08B 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 SAUF50X50-08B
The SAUF50X50-08B 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. It has a 50mm stroke, a 1/4" cylinder port, and an M16x1.5 rod thread.
Operating within the valve's 0.15-0.8 MPa window, this 50mm bore delivers 982N push and 825N pull at 0.5 MPa. The integrated valve provides 16 mm2 flow (Cv 0.89) and handles up to 5 cycles per second. The DC24V coil uses a terminal entry, is IP65 rated, and pairs with PU tube Ø8xØ5. For sizing, the safe working load is roughly 589N, and it can vertically lift about 50kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50-08B |
|---|---|
| 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 SAUF50X50-08B
| 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 SAUF50X50-08B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station uses one coil signal to actuate independently, saving manifold space and tubing runs.
Inline Diverting
Perfect for a conveyor diverter gate that switches at up to 5 cycles per second without needing a remote valve bank.
Package Stops
Suits localized package stopping on a packing line, using the built-in 4M210-08 valve to directly control the 50mm stroke motion.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X50-08B the Right Choice?
Size by checking both neighboring bores: the 40mm bore offers 628N push while the 63mm bore provides 1559N push at 0.5 MPa, compared to this 50mm bore's 982N. Confirm the DC24V terminal entry coil meets your supply voltage. 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 range, not the 1.0 MPa cylinder body rating. Because the valve only routes air, add an external rod lock or pilot-operated check valve to hold loads safely. Since this 50mm stroke is below the 300mm threshold, side-load guides are less critical, but always ensure proper alignment. This SKU lacks the S suffix for a magnet, so it cannot accept a magnetic switch.
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 SAUF50X50-08B FAQ
It generates 982N push and 825N 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 entry coil. Although the cylinder body rates to 1.0 MPa, you must size force within the valve's 0.15-0.8 MPa operating window.
Yes. The default action retracts the rod when energized, but you can reposition the built-in valve on the cap to make the rod extend on signal. Remember the valve only routes air; it is not a load lock, so use an external rod lock for holding.
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