Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 80mm 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
- Stroke80 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08B
The SAUF40X80-08B 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 makes it shorter than an ISO 15552 unit of the same bore. It features a 1/4" cylinder port, an M12x1.25 rod thread, and 21mm adjustable cushions.
Operating within the 0.15-0.8 MPa valve window, it delivers 628N push and 528N pull at 0.5 MPa. A practical computed insight: your safe working load is roughly 377N (about 60% of the 0.5MPa push), allowing a 32kg vertical lift with a 2:1 margin. The 4M210-08 valve provides 16mm2 flow (Cv 0.89) at up to 5 cycles/s. It uses a DC24V terminal coil (IP65) and Ø8xØ5 PU tube. This SKU lacks the S suffix, so it cannot take a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 80 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 | 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 (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 SAUF40X80-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×80 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAUF40X80-08B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station switches itself via one DC24V signal, avoiding a massive central valve manifold.
Independent Diverters
Perfect for conveyor sorters needing a single actuator at each lane, saving tubing back to a control cabinet.
Compact Assembly Tooling
Fits into tight robotic cells where the shorter profile barrel and integrated 4M210 valve maximize available envelope.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08B the Right Choice?
Size by checking both neighboring bores: the 32mm bore yields 402N push at 0.5MPa, while the 50mm bore yields 982N. This 40mm bore provides 628N push at 0.5MPa. Confirm your coil matches the DC24V terminal entry before ordering. The rod retracts when the coil is energized, but you can reposition the valve to extend-when-energized. 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, it is not a load lock; add an external rod lock or pilot-operated check valve to hold a load. For this 80mm stroke side-load is minimal, but for any stroke over 300mm add a guide.
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 SAUF40X80-08B FAQ
It delivers 628N push and 528N pull at 0.5MPa, driven by a built-in 4M210-08 valve with 1/4" port, Cv 0.89, and 5 cycles/s max. The DC24V coil runs the assembled unit within a 0.15-0.8 MPa window, despite the 1.0 MPa cylinder body rating.
Yes. The default action retracts the rod upon energizing, but you can reposition the integrated valve to switch it to extend-when-energized. This self-switching design means no remote valve is needed.
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