Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125S-08A is a genuine double-acting profile-type cylinder with a Ø50mm bore, 125mm 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
- Stroke125 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125S-08A
The SAUF50X125S-08A is an extruded aluminum profile cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One AC220V terminal coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The bore 50mm cylinder port is 1/4" PT, the rod is Ø20mm with an M16x1.5 thread, and the S suffix denotes a piston magnet for CMSG/DMSG/EMSG switches.
Operating in the 0.15-0.8 MPa valve window, it delivers 982N push and 825N pull at 0.5 MPa. The 4M210-08 valve provides 16mm2 flow (Cv 0.89) at up to 5 cycles/sec. For sizing, the safe working load is roughly 589N (60% of the 0.5MPa push force), and the vertical lift capacity is about 50kg with a 2:1 safety margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125S-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 125 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 SAUF50X125S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×125 | 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 SAUF50X125S-08A Is Used
Modular Clamping Stations
Dedicated clamping on machining cells where wiring one AC220V coil per actuator avoids a centralized valve bank.
Diverter Gates
Independent package routing on conveyors, using the 5 cycle/sec valve speed and integrated magnet for position feedback.
Compact Sortation Pushers
Space-saving sortation pushers where the shorter profile body and built-in valve minimize machine footprint.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125S-08A the Right Choice?
Size force between the 0.15-0.8 MPa valve limits: this 50mm bore gives 982N push at 0.5MPa, sitting between the 40mm (628N) and 63mm (1559N) options. Confirm the AC220V terminal entry suits your control circuit. The default action retracts the rod when energised, but you can reconfigure it to extend by repositioning the valve. Since the valve only routes air, add an external rod lock or pilot-operated check valve to hold loads safely. For this 125mm stroke, side-load is minimal, but for strokes over 300mm, use guide rails 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 SAUF50X125S-08A FAQ
It has a 50mm bore, 125mm stroke, and a built-in 4M210-08 valve (Cv 0.89, 16mm2 flow, max 5 cycles/sec). The AC220V terminal coil is IP65. Force is 982N push and 825N pull at 0.5MPa. Size within the 0.15-0.8 MPa valve operating window, not the 1.0 MPa cylinder body rating.
By default, the rod retracts when the coil is energised. You can reconfigure it to extend-when-energised simply by repositioning the built-in valve. This decentralized setup means one coil signal switches the cylinder directly, requiring no remote valve.
Related AirTAC Cylinders & Valves
Request a Quote for Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125S-08A
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.