Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08A is a genuine double-acting profile-type cylinder with a Ø50mm bore, 225mm 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
- Stroke225 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08A
The SAUF50X225S-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. The S suffix means a piston magnet is present for CMSG/DMSG/EMSG switches.
It delivers 982 N push and 825 N pull at 0.5 MPa. A safe working load is roughly 589 N, and it can vertically lift about 50 kg with a 2:1 margin. The integrated valve has a 1/4" port, 16 mm2 flow (Cv 0.89), and handles 5 cycles/s. The cylinder body rates to 1.0 MPa, but size force within the valve's 0.15-0.8 MPa window. The bore sets the 1/4" cylinder port, rod thread is M16x1.5, and PU tube is Ø8xØ5.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 225 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 SAUF50X225S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×225 | 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 SAUF50X225S-08A Is Used
Diverter Gate Actuation
Decentralized sorting lines use this self-switching cylinder to push packages, cutting tubing runs to a central manifold.
Independent Clamp Stations
Each clamping point gets its own 4M210-08 valve signal, freeing manifold slots for other actuators on the machine.
Component Insertion
The compact profile and built-in magnet for position sensing suit tight cells where a remote valve would be cumbersome.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08A the Right Choice?
Size by checking both neighbours: the 40 mm bore gives 628 N push at 0.5 MPa, while the 63 mm bore gives 1559 N. This 50 mm bore provides 982 N push. Confirm the coil is AC220V with terminal entry and PT threads. Default action retracts the rod when energised; reposition the valve to extend on energisation. Size force within the 0.15-0.8 MPa valve range, never the 1.0 MPa cylinder rating. The valve routes air and is not a lock; for load holding on air loss, add an external rod lock or pilot-operated check valve. For this 225 mm stroke, ensure side-load guidance to prevent rod bending.
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 SAUF50X225S-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) running on AC220V. The cylinder body rates to 1.0 MPa, but you must size force within the assembled valve's 0.15-0.8 MPa operating window.
Yes. The default action retracts the rod on energisation, but you can reposition the valve to make it extend when energised. Because the valve only routes air, use an external rod lock or pilot-operated check valve if you need to hold a load on air loss.
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