Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800S-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 SAUF40X800S-08A
The SAUF40X800S-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 hard-anodized aluminum barrel is shorter than an ISO 15552 unit of the same bore. This model includes a piston magnet for CMSG/DMSG/EMSG switches.
It features a 40mm bore, 800mm stroke, and a 1/4" cylinder port. The integrated valve provides 16 mm2 flow (Cv 0.89) at 1/4" and handles 5 cycles/sec. The body rates to 1.0 MPa, but the valve limits operation to 0.15-0.8 MPa. At 0.5 MPa it pushes 628 N and pulls 528 N. The safe working load is roughly 377 N, allowing a vertical lift of about 32 kg with a 2:1 margin. It uses a terminal entry, PT threads, and PU tube Ø8xØ5.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800S-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 SAUF40X800S-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 SAUF40X800S-08A Is Used
Sorting Diverter
Decentralized package sorting where one coil signal per actuator removes the need for a central manifold and long tubing runs.
Vertical Gate
Lifting a 32 kg gate using the 40mm bore, benefiting from the self-contained valve to simplify machine wiring.
Long-Stroke Pusher
Ejecting parts on an 800mm stroke, using external guides to manage side loads while the integrated 4M210 valve handles cycling.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800S-08A the Right Choice?
When sizing, compare neighboring bores: a 32mm bore yields 402 N push at 0.5 MPa, while a 50mm bore provides 982 N. This 40mm bore delivers 628 N push and 528 N pull at 0.5 MPa. Always size force within the valve's 0.15-0.8 MPa window, never the 1.0 MPa cylinder body rating. Confirm the AC220V terminal entry meets your electrical specs. The rod retracts when the coil is energized; reposition the valve to extend on energization. The built-in valve routes air and is not a load lock—add an external rod lock or pilot-operated check valve to hold loads. 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 SAUF40X800S-08A FAQ
It pushes 628 N and pulls 528 N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/sec). The coil is AC220V with a terminal entry. Although the cylinder body rates to 1.0 MPa, the assembled unit operates strictly within the 0.15-0.8 MPa valve window.
By default the rod retracts when the coil is energised; you can reposition the valve to extend on energisation. The 5/2 valve only routes air—it is not a lock. On air loss the piston drifts, so add an external rod lock or pilot-operated check valve for load holding.
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