Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400-08A is a genuine double-acting profile-type cylinder with a Ø50mm bore, 400mm stroke and a built-in 4M210-08 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 valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400-08A
The SAUF50X400-08A is a double-acting profile cylinder with a built-in AirTAC 4M210-08 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 unit of the same bore. It uses a 1/4" cylinder port and a 1/4" valve port.
Operating within the 0.15-0.8 MPa valve window, it delivers 982 N push and 825 N pull at 0.5 MPa. The computed safe working load is roughly 589 N, allowing a vertical lift of about 50 kg with a 2:1 margin. The AC220V terminal coil is IP65 rated, and the valve flows 16 mm2 (Cv 0.89) at up to 5 cycles per second. This SKU lacks a magnet, so it cannot accept a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400-08A |
|---|---|
| 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 | 4M210-08 (5/2) |
|---|---|
| Valve flow | 16.0 mm² (Cv 0.89) |
| 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 (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 SAUF50X400-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×400 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAUF50X400-08A Is Used
Decentralized Conveyor Diverter
Mounts directly at the divert gate to push packages off the belt using one AC220V signal, cutting tubing runs back to a central manifold.
Independent Stacking Arm
Ideal for a standalone stacking station where the built-in 4M210-08 valve handles the 400 mm reach without extra plumbing.
Machine Tool Loading
Loads parts into a chuck with a 982 N push force, using the integrated valve to simplify control wiring on the machine cell.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X400-08A the Right Choice?
Size by checking both neighbours: the 40 mm bore gives 628 N push while the 63 mm bore gives 1559 N at 0.5 MPa. This 50 mm bore provides 982 N push, making the computed safe working load 589 N. Always size force within the 0.15-0.8 MPa assembled valve limit, never the 1.0 MPa cylinder body rating. Confirm the AC220V terminal entry and PT threads meet your specs. The rod retracts when the coil energises; reposition the valve to switch to extend-when-energised. For the 400 mm stroke, use an external guide to prevent rod bending and side loads. The valve routes air, so add an external rod lock or pilot-operated check valve to hold loads safely.
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 SAUF50X400-08A FAQ
It pushes 982 N and pulls 825 N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/s max) driven by an AC220V terminal coil. Size the force within the 0.15-0.8 MPa valve operating window, as the assembled unit cannot use the 1.0 MPa cylinder body rating.
No. The built-in 5/2 valve routes air but does not lock the piston. If air is lost, the rod drifts and the 21 mm adjustable cushion only decelerates near stroke end. Install an external rod lock or pilot-operated check valve for load holding.
Related AirTAC Cylinders & Valves
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