Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X80S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X80S-08B is a genuine double-acting profile-type cylinder with a Ø50mm bore, 80mm 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
- Stroke80 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X80S-08B
The SAUF50X80S-08B is a double-acting profile-type 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 is shorter than an ISO 15552 unit of the same bore. The bore sets the 1/4" cylinder port and M16x1.5 rod thread.
Operating within the 0.15-0.8 MPa valve window, it delivers 982 N push at 0.5 MPa. The safe working load is roughly 589 N, allowing a vertical lift of about 50 kg with a 2:1 margin. The 1/4" valve port yields a 16 mm2 flow (Cv 0.89) and handles 5 cycles per second. This DC24V terminal-entry coil is IP65 rated, and the S suffix provides a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X80S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X80S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 80 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 SAUF50X80S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×80 | 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 SAUF50X80S-08B Is Used
Decentralized Clamping
Ideal for machining cells where each clamping station uses one coil signal to actuate independently, avoiding a central valve manifold.
Inline Diverters
Perfect for conveyor sorting gates that need rapid 5 cycle/sec actuation without routing long air lines back to a main control panel.
Package Stops
Excellent for decentralized packaging lines, saving installation time by mounting the valve directly on the cylinder cap.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X80S-08B the Right Choice?
Size by comparing neighbouring bores: the 40 mm bore gives 628 N push while the 63 mm bore gives 1559 N at 0.5 MPa. This 50 mm bore yields 982 N push and 825 N pull at 0.5 MPa, so select it when your load sits near 589 N. Always confirm the DC24V terminal entry and PT threads match your control scheme. The default action retracts the rod when energised, but you can reposition the valve to extend on signal. Size force strictly within the 0.15-0.8 MPa valve range, never 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. For this 80 mm stroke side-load is minimal, but any stroke over 300 mm requires guide rails to prevent piston binding.
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 SAUF50X80S-08B FAQ
It pushes 982 N and pulls 825 N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 16 mm2 flow) running on a DC24V terminal-entry coil. The cylinder body rates to 1.0 MPa, but you must size force within the 0.15-0.8 MPa assembled valve window.
The default action retracts the rod when energised. You can reconfigure it to extend-when-energised simply by repositioning the valve. Because the valve routes air rather than locking it, the piston will drift on air loss, so add an external rod lock for suspended loads.
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