Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X900-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X900-08A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 900mm 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
- Stroke900 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X900-08A
The AirTAC SAUF40X900-08A is a double-acting profile cylinder with a built-in 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 cylinder of the same bore. This SKU uses terminal entry, PT threads, and a Ø8xØ5 PU tube.
Operating within the valve's 0.15-0.8 MPa window, 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/s. The 1.0 MPa cylinder body rating does not apply to the assembled unit. Computed insight: safe working load is ~377N (60% of the 0.5 MPa push), yielding a ~32kg vertical lift capacity with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X900-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X900-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 900 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 SAUF40X900-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×900 | 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 SAUF40X900-08A Is Used
Long-Stroke Diverter
Decentralized sorting on a wide conveyor belt where a 900mm reach pushes heavy cartons without running long tubing back to a central manifold.
Vertical Lift Gate
Raising a lightweight access panel in a storage aisle, using the built-in AC220V valve to switch directly from a local control panel.
Machine Guard Door
Opening a large perimeter guard on an automated line, saving a manifold slot and simplifying installation by integrating the 4M210 valve on the cap.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X900-08A the Right Choice?
Size by force: the 40mm bore yields 628N push at 0.5 MPa, sitting between the 32mm (402N) and 50mm (982N) options. Confirm the AC220V terminal coil and 1/4" valve port suit your supply. The cylinder port is 1/4". Default action retracts the rod when energised; reposition the valve to extend-when-energised. Size pressure within the 0.15-0.8 MPa valve range, not the 1.0 MPa body rating. This 900mm stroke requires external guides to prevent rod bending under side loads. The valve routes air and is not a lock; add an external rod lock or pilot-operated check valve to hold loads on air loss. Without a -S suffix, this SKU cannot take a magnetic switch.
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 SAUF40X900-08A FAQ
It pushes 628N and pulls 528N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/s) running on AC220V. Size force within the 0.15-0.8 MPa valve operating window, as the assembled unit cannot use the 1.0 MPa cylinder body rating.
No, the 5/2 valve only routes air and is not a lock; the piston drifts on air loss and the 21mm cushion only decelerates near stroke end. Add an external rod lock or pilot-operated check valve for holding. By default the rod retracts when energised, but you can reposition the valve to extend-when-energised.
Related AirTAC Cylinders & Valves
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