Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250-08A is a genuine double-acting profile-type cylinder with a Ø50mm bore, 250mm 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
- Stroke250 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250-08A
The SAUF50X250-08A 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 has a 1/4" cylinder port, an M16x1.5 rod thread, and 21mm adjustable cushions.
Operating strictly within the valve's 0.15-0.8 MPa window, this 50mm bore delivers 982N push and 825N pull at 0.5 MPa. The 1/4" valve port gives 16mm2 flow (Cv 0.89) and handles 5 cycles/sec. For sizing, the safe working load is roughly 589N, and it can vertically lift about 50kg with a 2:1 margin. The AC220V terminal entry coil is IP65 rated. Note this SKU lacks a magnet, so it cannot take a sensor.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 250 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 SAUF50X250-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×250 | 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 SAUF50X250-08A Is Used
Decentralized Clamping
Ideal for a machining cell needing independent clamping at multiple stations without running long tubing back to a central manifold.
Inline Diverting
Perfect for a conveyor diverter arm where installing a separate valve island is impractical, relying on the integrated 4M210 valve.
Package Rejecting
Suits a decentralized packaging line reject gate, switching itself with one AC220V signal to save installation time.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X250-08A the Right Choice?
Size force between the 40mm bore (628N push) and 63mm bore (1559N push) neighbours, using the 0.5MPa figures. Confirm the AC220V terminal entry and PT threads match your supply. The rod retracts by default when energised; reposition the valve to switch to extend-when-energised. Always size within the 0.15-0.8 MPa valve range, never the 1.0MPa cylinder body rating. Because the built-in valve only routes air, add an external rod lock or pilot-operated check valve to hold a load. For this 250mm stroke, ensure 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 SAUF50X250-08A 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 entry coil. You must size the force within the valve's 0.15-0.8MPa operating window, not the 1.0MPa cylinder body rating.
This specific SKU has no magnet (-S omitted), so it cannot take a magnetic switch. Additionally, the built-in valve routes air but does not lock; if air is lost, the piston drifts. Use an external rod lock or pilot-operated check valve for load holding.
Related AirTAC Cylinders & Valves
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