Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08A
The SAUF80X250S-08A is an extruded aluminum profile-type double-acting cylinder with a built-in AirTAC 4M310-08 5/2 solenoid valve on the cap. One coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The 80mm bore delivers 2513N push at 0.5MPa, and the integrated -S piston magnet supports CMSG/DMSG/EMSG switches for position sensing.
Size force strictly within the 0.15-0.8MPa valve window, as the assembled unit cannot use the 1.0MPa cylinder body rating. Based on the 0.5MPa push force, the safe working load is roughly 1508N, translating to a 128kg vertical lift with a 2:1 margin. The valve provides 25mm2 flow (Cv 1.4) at 1/4" port, switching up to 4 cycles/sec, while the cylinder port is 3/8". It uses a Ø10xØ6.5 PU tube.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08A |
|---|---|
| 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 | AC220V · AC 3.5 VA |
| 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-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 80×250 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| A | Coil voltage AC220V. |
| 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-08A Is Used
Decentralized Clamping Press
Ideal for large machining cells where each clamping station switches itself via one AC220V signal, avoiding long tube runs back to a central manifold.
Independent Divert Gate
A single coil drives this 80mm actuator to sort heavy packages, saving a valve island slot and simplifying electrical control on the conveyor frame.
Vertical Lift Station
Provides a safe 128kg vertical lift capacity with a 2:1 margin at 0.5MPa, using the built-in magnet for precise lower-stop confirmation.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X250S-08A the Right Choice?
Size against the 63mm and 100mm neighbors: the 63mm bore yields 1559N push at 0.5MPa, while the 100mm bore yields 3927N. This 80mm bore provides 2513N push and 2268N pull at 0.5MPa. Confirm the AC220V terminal entry and PT thread. The default action retracts the rod when energized, but you can reposition the valve to extend on signal. Keep operating pressure between 0.15-0.8MPa. The built-in valve routes air and is not a lock; add an external rod lock or pilot-operated check valve for held loads. For this 250mm stroke, use SC-series mounting accessories and guide the load to prevent side-load wear.
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-08A FAQ
It delivers 2513N push and 2268N pull at 0.5MPa, reaching 4021N push at 0.8MPa. The built-in valve is a 4M310-08 5/2 solenoid with 1/4" port, Cv 1.4, and 4 cycles/sec max. The coil is AC220V terminal entry. Size force within the 0.15-0.8MPa valve operating window, not the 1.0MPa cylinder body rating.
Yes, the default action retracts the rod on signal, but you can reconfigure it to extend-when-energised by repositioning the valve. The valve only routes air; it is not a load lock. The piston will drift on air loss, so install an external rod lock or pilot-operated check valve if you need to hold a load.
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