Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08B is a genuine double-acting profile-type cylinder with a Ø80mm bore, 400mm 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
- Stroke400 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08B
The SAUF80X400-08B is a double-acting profile 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 extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore. It features a 3/8" cylinder port, an M20x1.5 rod thread, and 28mm adjustable cushions.
Operating within the valve's 0.15-0.8 MPa window, it delivers 2513 N push force at 0.5 MPa. The 1/4" valve port flows 25 mm2 (Cv 1.4) at up to 4 cycles per second. The DC24V terminal coil offers IP65 protection and a 0.05s response. For sizing, the safe working load is roughly 1508 N, and it can vertically lift about 128 kg with a 2:1 margin. This SKU lacks a magnet, so it cannot accept a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAUF80X400-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 80×400 | 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 SAUF80X400-08B Is Used
Divert Gate Actuation
Drives a lane diverter directly from the cylinder cap, needing only one DC24V signal to switch without routing air lines back to a central manifold.
Pallet Stopper Control
Raises and lowers a heavy pallet stop using 2513 N push force, with the integrated 4M310-08 valve simplifying installation across long conveyor stretches.
Press Ejection System
Ejects parts sequentially at up to 4 cycles per second, saving manifold space while the 28mm cushions absorb end-of-stroke impact.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08B the Right Choice?
Size by checking both neighboring bores: the 63mm bore offers 1559 N push at 0.5 MPa, while the 100mm bore provides 3927 N. This 80mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa. Confirm the DC24V terminal entry and PT threads meet your schematic. The rod retracts by default 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. For this 400mm stroke, use external guides to prevent rod bending and side-load damage.
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 SAUF80X400-08B FAQ
It generates 2513 N push and 2268 N pull at 0.5 MPa, reaching 4021 N push at 0.8 MPa. The built-in valve is a 4M310-08 5/2 solenoid with a 1/4" port, Cv 1.4, and a DC24V terminal coil. You must size the force within the valve's 0.15-0.8 MPa operating window, as the 1.0 MPa cylinder body rating does not apply to the assembled unit.
No, the built-in valve only routes air and is not a lock. If air is lost, the piston will drift. To maintain a vertical or suspended load, you must install an external rod lock or a pilot-operated check valve. Additionally, this specific SKU has no magnet, so it cannot accept magnetic position switches.
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