Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125-08A 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 SAUF50X125-08A
The SAUF50X125-08A 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 rod, eliminating remote plumbing and freeing a manifold slot. The extruded aluminum barrel is shorter than an ISO 15552 unit of the same bore. This 50mm bore delivers 982N push and 825N pull at 0.5MPa, with a 1/4" cylinder port and an M16x1.5 rod thread.
Size force within the 0.15-0.8MPa valve window, not the 1.0MPa cylinder body rating. The integrated valve flows 16mm2 (Cv 0.89) at 1/4" and handles 5 cycles/sec. The AC220V terminal entry coil is IP65 rated. For sizing, the safe working load is about 589N (60% of the 0.5MPa push), and vertical lift is roughly 50kg with a 2:1 margin. This SKU lacks the S suffix, so it cannot take a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125-08A |
|---|---|
| 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 SAUF50X125-08A
| 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 SAUF50X125-08A Is Used
Conveyor Diverter Gate
Decentralized diverter on a packaging line. The built-in valve means one AC220V signal flips the gate without running tubes back to a central manifold.
Compact Clamping Station
Independent clamping in a tight cell. The profile barrel saves length versus standard cylinders, and the 4M210-08 valve switches directly at the cap.
Machine Tool Guard
Local actuation for a safety door. The 50mm bore provides 982N push at 0.5MPa, and the terminal entry coil keeps wiring simple and IP65 protected.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X125-08A the Right Choice?
Compare neighbours: the 40mm bore pushes 628N and the 63mm pushes 1559N at 0.5MPa, versus 982N here. Confirm the AC220V terminal coil and 1/4" valve port suit your supply. The rod retracts when energised but you can reconfigure it to extend by repositioning the valve. Keep pressure between 0.15-0.8MPa. The valve routes air and is not a lock; add an external rod lock or pilot-operated check valve to hold a load. For this 125mm stroke, side-load is minimal, but always guide the rod for rigid mounting. This non-magnet SKU cannot accept sensors.
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 SAUF50X125-08A FAQ
It pushes 982N and pulls 825N at 0.5MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/sec) with an AC220V terminal coil. Although the cylinder body rates to 1.0MPa, the assembled unit must operate within the valve's 0.15-0.8MPa window.
By default the rod retracts when energised. You can reconfigure it to extend-when-energised simply by repositioning the valve on the cap. This allows you to choose the fail-safe state for your process without extra parts.
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