Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-06B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-06B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 50mm 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
- Stroke50 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-06B
The SAUF40X50-06B 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. It uses a 1/4" cylinder port and a 1/8" valve port.
Operating within the 0.15-0.8 MPa valve window, this 40mm bore delivers 628N push and 528N pull at 0.5 MPa. The integrated valve flows 14 mm2 (Cv 0.78) at up to 5 cycles per second. The DC24V terminal coil offers IP65 protection. For sizing, the safe working load is roughly 377N, with a vertical lift capacity around 32kg at a 2:1 margin. Because this SKU lacks the S suffix, it cannot accept a magnetic sensor.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-06B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-06B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 50 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 SAUF40X50-06B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×50 | 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 SAUF40X50-06B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station needs independent actuation without routing long tubing runs back to a central manifold.
Inline Diverters
Perfect for mounting directly onto a conveyor frame to operate a diverting gate, using the built-in valve to minimize installation hardware.
Compact Assembly Stations
Suits tight assembly machinery where the short profile barrel and integrated 4M210 valve free up valuable space for other components.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-06B the Right Choice?
Size by checking both neighboring bores: the 32mm bore yields 402N push while the 50mm bore yields 982N push at 0.5 MPa. Confirm the DC24V terminal entry and PT threads match your supply. The rod retracts when the coil is energized, but you can reposition the valve to extend on signal. Always size force within the 0.15-0.8 MPa valve range, not the 1.0 MPa cylinder body rating. The integrated valve routes air and is not a load lock; add an external rod lock or pilot-operated check valve to hold loads safely. Since this 50mm stroke is below the 300mm threshold, side-load guides are less critical but still good practice.
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 SAUF40X50-06B FAQ
This 40mm bore cylinder pushes 628N and pulls 528N at 0.5 MPa. It uses a built-in 4M210-06 valve with 1/8" port, Cv 0.78, and a DC24V coil. Although the cylinder body rates to 1.0 MPa, you must size force within the integrated valve's 0.15-0.8 MPa operating window.
Yes, the default action retracts the rod when the coil is energized, but you can reposition the valve to extend on signal. The valve only routes air; it is not a load lock. If you need to hold a load against air loss or drift, install an external rod lock or pilot-operated check valve.
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