Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400S-06B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400S-06B is a genuine double-acting profile-type cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke400 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400S-06B
The SAUF50X400S-06B is a double-acting profile cylinder with a built-in AirTAC 4M 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 cylinder of the same bore. The bore dictates a 1/4" cylinder port with an M16x1.5 rod thread.
It integrates a 4M210-06 valve (1/8" port, Cv 0.78, 5 cycles/s max) running on DC24V with terminal entry. The cylinder body rates to 1.0 MPa, but the assembled unit operates within the 0.15-0.8 MPa valve window. At 0.5 MPa it pushes 982 N and pulls 825 N. The safe working load is roughly 589 N, and it can vertically lift about 50 kg with a 2:1 margin. The S suffix adds a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400S-06B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400S-06B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 400 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 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 SAUF50X400S-06B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×400 | 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 SAUF50X400S-06B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station needs independent control without running long tubing back to a central manifold.
Inline Diverter Gate
Perfect for a conveyor diverter requiring a 400 mm reach, switching itself locally to save manifold slots and simplify plumbing.
Vertical Lift Station
Suited for a localized 50 kg vertical lift task in a packaging line, operating safely at 0.5 MPa with a 2:1 margin.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400S-06B the Right Choice?
Size by checking both neighboring bores: the 40 mm bore yields 628 N push while the 63 mm bore yields 1559 N at 0.5 MPa. This 50 mm bore provides 982 N push and 825 N pull at 0.5 MPa. Always size force within the 0.15-0.8 MPa valve operating range, never the 1.0 MPa cylinder body rating. Confirm the DC24V coil and terminal entry meet your electrical specs. The rod retracts when energized but you can reconfigure it to extend by repositioning the valve. Because the 400 mm stroke exceeds 300 mm, add external guides to prevent rod bending and side-load wear. The valve only routes air; it is not a lock. For load holding on air loss, add an external rod lock or pilot-operated check valve.
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 SAUF50X400S-06B FAQ
It pushes 982 N and pulls 825 N at 0.5 MPa. The built-in valve is a 4M210-06 (Cv 0.78, 1/8" port) running on a DC24V terminal-entry coil. Although the cylinder body rates to 1.0 MPa, you must size force within the assembled valve's 0.15-0.8 MPa operating window.
By default the rod retracts when energized, but you can reconfigure it to extend by repositioning the valve. The 5/2 valve only routes air and is not a load lock; the piston will drift on air loss. Add an external rod lock or pilot-operated check valve for load holding.
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