Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250-06A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250-06A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 250mm 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
- Stroke250 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250-06A
The SAUF40X250-06A is a double-acting profile cylinder with a built-in AirTAC 4M210-06 5/2 solenoid valve on the cap. One AC220V coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 unit of the same bore. The bore sets the 1/4" cylinder port and M12x1.25 rod thread.
Operating strictly within the valve's 0.15-0.8 MPa window, it delivers 628 N push and 528 N pull at 0.5 MPa. The 1/8" valve port flows 14 mm2 (Cv 0.78) at up to 5 cycles per second. For sizing, expect a safe working load around 377 N, or a vertical lift capacity of roughly 32 kg with a 2:1 margin. Note this SKU lacks a magnet and cannot accept a sensor.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250-06A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250-06A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 250 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 SAUF40X250-06A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×250 | 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 SAUF40X250-06A Is Used
Diverter Gate Actuation
Drives a routing flap on a packaging line directly from one coil signal, removing the need to run tubing back to a central valve manifold.
Decentralized Clamp Station
Holds a workpiece in a welding cell. The integrated 4M210-06 valve provides rapid 5 cycle/sec actuation right at the point of operation.
Compact Stopper Cylinder
Controls pallet flow on an accumulation line. The short profile barrel saves space while the 1/4" cylinder port delivers responsive stopping force.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X250-06A the Right Choice?
Size by checking both neighboring bores: the 32 mm bore yields 402 N push, while the 63 mm bore provides 1559 N at 0.5 MPa. This 40 mm bore gives 628 N push and 528 N pull at 0.5 MPa. Confirm the AC220V terminal entry and PT threads suit your supply. The cylinder body rates to 1.0 MPa, but you must size force within the 0.15-0.8 MPa valve limit. By default the rod retracts when energized; reposition the valve to reverse this. Because the valve only routes air, add an external rod lock or pilot-operated check valve to hold loads safely. For this 250 mm stroke, ensure external guidance to manage side loads.
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 SAUF40X250-06A FAQ
It pushes 628 N and pulls 528 N at 0.5 MPa. The built-in valve is a 4M210-06 (1/8" port, Cv 0.78, 5 cycles/sec) running on AC220V. Although the cylinder body rates to 1.0 MPa, the assembled unit must operate within the 0.15-0.8 MPa valve window.
No to both. The 5/2 valve routes air but does not lock the piston, so add an external rod lock or pilot check valve for load holding. Also, this specific SKU lacks a magnet and cannot accept a magnetic sensor.
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