Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08B is a genuine double-acting profile-type cylinder with a Ø80mm bore, 250mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ80 mm
- Stroke250 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08B
The SAUF80X250S-08B is a double-acting profile cylinder with a built-in AirTAC 4M310-08 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. This model includes a piston magnet for CMSG/DMSG/EMSG switches.
Operating within the 0.15-0.8 MPa valve window, it delivers a 2513 N push force at 0.5 MPa. The 1/4" port valve flows 25 mm2 (Cv 1.4) at up to 4 cycles per second. For sizing, the safe working load is roughly 1508 N, translating to a 128 kg vertical lift with a 2:1 margin. The cylinder port is 3/8" and uses PU tube Ø10xØ6.5.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 250 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 3/8" |
| Rod thread | M20×1.5 |
| PU tube | Ø10 × Ø6.5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 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 SAUF80X250S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 80×250 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAUF80X250S-08B Is Used
Decentralized Diverters
Drives individual lane diverters directly at the point of use, removing long tube runs back to a central manifold.
Independent Stack Gates
Controls localized pallet stack gates with a single DC24V signal, simplifying large facility wiring.
Machine Tool Clamps
Provides self-contained clamping on multi-station machining centers, freeing up manifold slots for other tools.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08B the Right Choice?
When sizing, compare neighbouring bores: a 63 mm bore gives 1559 N push at 0.5 MPa, while a 100 mm bore gives 3927 N. This 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa. The assembled unit operates strictly in the 0.15-0.8 MPa range, even though the cylinder body rates to 1.0 MPa. Confirm the DC24V terminal entry and PT thread suit your control setup. The rod retracts when the coil is energised, but you can reposition the valve to extend on signal. The valve routes air and is not a load lock; add an external rod lock or pilot-operated check valve to hold a load. For this 250 mm stroke, ensure side-load guidance.
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 SAUF80X250S-08B FAQ
It delivers 2513 N push and 2268 N pull at 0.5 MPa. The built-in valve is a 4M310-08 with a 1/4" port, Cv 1.4, and 4 cycles/s max. The coil is DC24V with terminal entry. You must size force within the 0.15-0.8 MPa valve operating window, not the 1.0 MPa cylinder body rating.
By default the rod retracts when energised, but you can reposition the valve to extend on signal. The 5/2 valve only routes air; it is not a load lock. The piston will drift on air loss, so add an external rod lock or pilot-operated check valve for load holding.
Related AirTAC Cylinders & Valves
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