Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-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 SAUF40X50S-06B
The SAUF40X50S-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 makes it shorter than an ISO 15552 cylinder of the same bore. It features a 50 mm stroke, a 1/4" cylinder port, and an M12x1.25 rod thread.
Operating within the 0.15-0.8 MPa valve window, it delivers 628 N push force at 0.5 MPa. A practical safe working load is roughly 377 N, allowing a vertical lift of about 32 kg with a 2:1 margin. The integrated 4M210-06 valve has a 1/8" port, Cv 0.78, and cycles up to 5 times per second. This DC24V terminal-entry version includes a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-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 SAUF40X50S-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 SAUF40X50S-06B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station uses one coil signal to actuate independently, skipping a central valve manifold.
Inline Diverter Gate
Perfect for a conveyor diverter that needs rapid 5 cycle/s actuation without routing long air lines back to a main control panel.
Package Stopper Arm
Suits a logistics line stopper arm, using the built-in magnet and SC-series mount to simplify installation in tight spaces.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50S-06B the Right Choice?
Size by comparing neighbouring bores: the 32 mm bore pushes 402 N while the 50 mm bore pushes 982 N at 0.5 MPa. This 40 mm bore yields 628 N push and 528 N pull at 0.5 MPa, peaking at 1005 N push at 0.8 MPa. Confirm the DC24V coil and terminal entry suit your control system. 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 the coil is energised; reposition the valve to reverse this to extend-when-energised. The valve only routes air, so add an external rod lock or pilot-operated check valve to hold loads safely. For this 50 mm stroke, side-load guides are not strictly required, but always ensure linear motion.
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 SAUF40X50S-06B FAQ
It pushes 628 N and pulls 528 N at 0.5 MPa, reaching 1005 N push at 0.8 MPa. The built-in valve is a 4M210-06 with a 1/8" port and Cv 0.78. It runs on DC24V via a terminal entry. Although the cylinder body rates to 1.0 MPa, the assembled unit operates strictly within a 0.15-0.8 MPa window.
Yes, the default action retracts the rod when the coil is energised, but you can reposition the valve to make it extend-when-energised. The valve only routes air; it does not function as a load lock. You must add an external rod lock or pilot-operated check valve to prevent drift on air loss.
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