Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06B 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"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06B
The SAUF40X400-06B is a double-acting profile cylinder with a built-in AirTAC 4M210-06 5/2 solenoid valve on the cap. One coil signal drives the cylinder, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore. It has a 1/4" cylinder port, an M12x1.25 rod thread, and 21mm adjustable cushions.
Operating within the valve's 0.15-0.8 MPa window, this 40mm bore unit pushes 628N and pulls 528N at 0.5 MPa. The 1/8" valve port delivers a 14 mm2 flow (Cv 0.78) at up to 5 cycles/sec. The DC24V coil uses a terminal entry, is IP65 rated, and uses Ø8xØ5 PU tubing. For sizing, expect a safe working load around 377N, or a vertical lift capacity of about 32kg with a 2:1 margin. Note this SKU lacks the S suffix for a magnet, so it cannot accept a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06B |
|---|---|
| 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 | 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 SAUF40X400-06B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×400 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAUF40X400-06B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping actuator switches itself from one local coil signal, saving manifold space and tubing runs.
Inline Divert Gate
Perfect for a conveyor diverter needing a 400mm reach; the integrated 4M210 valve handles the 5 cycle/sec shift without a remote bank.
Independent Push Station
Suits a warehouse sorting pusher where running separate valve lines is impractical, letting the cylinder operate standalone via DC24V.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X400-06B the Right Choice?
When sizing, compare neighbouring bores: a 32mm bore yields 402N push at 0.5 MPa, while a 50mm bore provides 982N. This 40mm bore gives 628N push and 528N pull at 0.5 MPa. Always size force within the built-in valve's 0.15-0.8 MPa operating range, not the 1.0 MPa cylinder body rating. Confirm the DC24V terminal entry coil meets your electrical specs. The default action retracts the rod when energised, but you can reposition the valve to extend on energisation. Because this is a 400mm stroke, add external guides to prevent rod bending and side-load damage. The built-in valve routes air but does not function as a load lock; if air drops, the piston drifts and the cushion only decelerates near stroke end. Use an external rod lock or pilot-operated check valve for holding.
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 SAUF40X400-06B FAQ
It delivers 628N push and 528N pull at 0.5 MPa. The built-in valve is a 4M210-06 (5/2 solenoid) with a 1/8" port, 14 mm2 flow (Cv 0.78), and a 5 cycle/sec max frequency. The DC24V coil uses terminal entry. You must size force within the valve's 0.15-0.8 MPa operating window, even though the cylinder body rates to 1.0 MPa.
Yes, you can reconfigure the valve position to make the rod extend when the coil is energised. The valve only routes air; it is not a load lock. On air loss the piston drifts, and the 21mm cushion merely decelerates it near stroke end. Add an external rod lock or pilot-operated check valve to hold a load.
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