Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 800mm 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.
- BoreØ40 mm
- Stroke800 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08A
The SAUF40X800-08A 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 is shorter than an ISO 15552 unit of the same bore. This SKU lacks a magnet (-S), so it cannot take a magnetic switch.
Operating within the valve's 0.15-0.8 MPa range, the 40mm bore delivers 628N push and 528N pull at 0.5 MPa. The 1/4" ported valve flows 16 mm2 (Cv 0.89) at up to 5 cycles/sec. Computed buyer insight: safe working load is roughly 377N (60% of the 0.5 MPa push), and vertical lift is about 32kg with a 2:1 margin. The cylinder port is 1/4" with a PT thread.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 800 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M12×1.25 |
| 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 | 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 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 SAUF40X800-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×800 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAUF40X800-08A Is Used
Long-Stroke Diversion
Pushes packages across a wide conveyor belt using a single AC220V signal, saving manifold space at the main panel.
Decentralized Pallet Stop
Acts as a localized pallet stop on a long line. The built-in 4M210 valve removes the need to run tubing back to a central island.
Machine Guard Gate
Drives an 800mm access gate directly. The integrated valve simplifies wiring and speeds up response times on large perimeters.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08A the Right Choice?
Size by comparing neighbors: a 32mm bore yields 402N push at 0.5 MPa, while a 50mm bore gives 982N. This 40mm bore provides 628N push and 528N pull at 0.5 MPa. Confirm the AC220V terminal entry and PT thread before ordering. 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 window, never the 1.0 MPa cylinder body rating. The valve only routes air; it is not a lock, so add an external rod lock or pilot-operated check valve to hold a load. For the 800mm 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 SAUF40X800-08A FAQ
It generates 628N push and 528N pull at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/sec max) with an AC220V terminal coil. You must size the force within the valve's 0.15-0.8 MPa operating window, not the 1.0 MPa cylinder body rating.
Yes. The default action retracts the rod on signal, but you can reposition the valve to extend when energised. The valve only routes air; it is not a lock. The piston will drift on air loss, so install an external rod lock or pilot-operated check valve for load holding.
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