Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08A
The SAUF40X80-08A 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 40mm bore delivers 628N push and 528N pull at 0.5MPa, operating safely within the valve's 0.15-0.8MPa window. The cylinder body rates to 1.0MPa, but the integrated valve limits the assembled unit to 0.8MPa. This terminal-entry AC220V coil offers IP65 protection and responds in 0.05s or less.
The integrated valve provides a 1/4" port with 16mm2 flow (Cv 0.89) and handles up to 5 cycles per second. The cylinder itself uses a 1/4" air port with an M12x1.25 rod thread and 21mm adjustable cushions. For sizing, the computed safe working load is roughly 377N (about 60% of the 628N push force), and it can vertically lift around 32kg with a 2:1 safety margin. This SKU lacks a magnet, so it cannot accept a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08A |
|---|---|
| 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 | 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 SAUF40X80-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×80 | 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 SAUF40X80-08A Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station uses one coil signal to actuate independently, avoiding a central valve manifold.
Inline Divert Gate
Perfect for a conveyor diverter arm that switches up to 5 cycles per second, saving tubing runs back to a control panel.
Package Stopper
Suits decentralized packaging lines where a local stopper cylinder needs integrated 5/2 valve control without extra plumbing.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X80-08A the Right Choice?
When sizing, compare neighbouring bores: a 32mm bore yields 402N push at 0.5MPa, while a 50mm bore yields 982N. This 40mm bore provides 628N push and 528N pull at 0.5MPa. Always size force within the 0.15-0.8MPa valve operating range, never the 1.0MPa cylinder body rating. Confirm the AC220V terminal entry coil meets your electrical specs. The rod retracts by default when energised; repositioning the valve changes it to extend-when-energised. Because the valve only routes air, it is not a load lock—an external rod lock or pilot-operated check valve is required to hold a load against air loss. For this 80mm stroke, side-load guides are unnecessary, but standard SC-series mounting accessories apply.
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 SAUF40X80-08A FAQ
It delivers 628N push and 528N pull at 0.5MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5/2 solenoid) running on AC220V terminal entry. The cylinder body rates to 1.0MPa, but you must size force within the integrated valve's 0.15-0.8MPa operating window.
No, the built-in valve routes air and is not a load lock; the piston drifts without air, so add an external rod lock or pilot-operated check valve to hold loads. Additionally, this SKU lacks the -S magnet and cannot accept a magnetic switch.
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