Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08B 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"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08B
The SAUF50X225S-08B is a double-acting profile cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One coil signal switches the actuator directly, 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 50mm bore, 1/4" cylinder port, M16x1.5 rod thread, and a 21mm adjustable cushion at each end.
This model includes a piston magnet for CMSG/DMSG/EMSG switches. The integrated valve delivers a 1/4" port, 16mm2 flow (Cv 0.89), and up to 5 cycles/sec. The DC24V coil offers IP65 protection with a 0.05s response. Size force within the 0.15-0.8 MPa valve window: push is 982N and pull is 825N at 0.5 MPa. Computed buyer insight: safe working load is roughly 589N (about 60% of the 0.5 MPa push force), allowing a vertical lift of approximately 50kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08B |
|---|---|
| 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 | 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 SAUF50X225S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×225 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAUF50X225S-08B Is Used
Decentralized Conveyor Divert
Mounts directly at the divert gate to push packages locally, removing the need for long tube runs back to a central valve manifold.
Independent Clamping Station
Ideal for a standalone clamping actuator on a machining cell, switched by a single DC24V signal without consuming manifold outputs.
Compact Sorter Stopper
Fits neatly within tight sorter lanes as a profile cylinder, using its integrated 4M210 valve to provide rapid 5 cycle/sec actuation.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X225S-08B the Right Choice?
When sizing, compare neighbouring bores: a 40mm bore gives 628N push while a 63mm bore gives 1559N at 0.5 MPa. This 50mm bore provides 982N push, yielding a safe working load of about 589N. Confirm the DC24V terminal entry and PT thread match your control system. The default action retracts the rod when the coil is energised, but you can reposition the valve to extend on energisation. Always size within the 0.15-0.8 MPa valve operating range, not the 1.0 MPa cylinder body rating. The built-in 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 225mm stroke, ensure adequate side-load guidance to prevent rod binding.
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-08B FAQ
It pushes 982N and pulls 825N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/sec) driven by a DC24V terminal entry coil. You must size the force within the valve's 0.15-0.8 MPa operating window, even though the cylinder body rates to 1.0 MPa.
Yes. The default factory action retracts the rod when the coil is energised. You can reconfigure it to extend-when-energised simply by repositioning the built-in valve on the cap. This self-switching design means no remote valve is needed.
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