Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 400mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke400 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06A
The SAUF40X400-06A is a double-acting profile cylinder with a built-in AirTAC 4M210 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 uses terminal entry with PT threads and lacks a magnet, so it cannot accept a magnetic switch.
The integrated valve restricts operation to a 0.15-0.8 MPa window, even though the cylinder body rates to 1.0 MPa. At 0.5 MPa it delivers 628 N push and 528 N pull on a 1/4" air port. The 1/8" valve port yields a Cv of 0.78 and cycles up to 5 times per second. For sizing, the safe working load is roughly 377 N, allowing a vertical lift of about 32 kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 400 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| 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 SAUF40X400-06A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×400 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAUF40X400-06A Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station needs independent control without routing long tubing back to a central manifold.
Inline Divert Gate
Provides one-valve-per-actuator convenience for a conveyor sorting gate, simplifying installation and reducing response time.
Package Stopper Arm
Perfect for independent stopper arms on packaging lines, saving manifold slots while delivering reliable 628 N push force.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06A the Right Choice?
When sizing, compare neighbouring bores: a 32 mm bore yields 402 N push at 0.5 MPa, while a 50 mm bore provides 982 N. This 40 mm bore generates 628 N push and 528 N pull at 0.5 MPa. Always size force within the valve's 0.15-0.8 MPa operating range, never the 1.0 MPa cylinder body rating. Confirm the AC220V terminal entry meets your electrical specs. The rod retracts when the coil is energised, but you can reposition the valve to extend on signal. Because this is a 400 mm stroke, use an external guide to prevent rod bending and side-load damage. The valve routes air and is not a lock; the cushion only decelerates near stroke end. Add an external rod lock or pilot-operated check valve to hold a load securely.
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 SAUF40X400-06A FAQ
It delivers 628 N push and 528 N pull at 0.5 MPa. The built-in valve is a 4M210-06 (1/8" port, Cv 0.78, 5 cycles/s max) running on an AC220V terminal coil. You must size 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 when the coil is energised, but you can reposition the valve to extend on signal. The valve only routes air; it is not a load lock. The piston will drift on air loss, so add an external rod lock or pilot-operated check valve for load holding.
Related AirTAC Cylinders & Valves
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