Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08B is a genuine double-acting profile-type cylinder with a Ø50mm bore, 800mm 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
- Stroke800 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08B
The SAUF50X800S-08B 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 is shorter than an ISO 15552 cylinder of the same bore. This 50mm bore unit has a 1/4" cylinder port, a 1/4" valve port, and a 800mm stroke. It includes a piston magnet for CMSG/DMSG/EMSG switches.
Operating within 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) and up to 5 cycles/sec. The DC24V coil offers IP65 protection with terminal entry. For sizing, the safe working load is roughly 589N (about 60% of the 0.5MPa push force), supporting a vertical lift of approximately 50kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 800 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 SAUF50X800S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×800 | 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 SAUF50X800S-08B Is Used
Decentralized Conveyor Divert
Mounts directly at the divert gate to push packages, needing only one coil signal and no long tubing runs back to a central manifold.
Independent Machine Station
Ideal for a standalone assembly station where the 4M210 valve switches the 800mm stroke actuator locally without consuming manifold space.
Vertical Material Lift
Handles vertical lifts up to roughly 50kg with a 2:1 safety margin at 0.5MPa, using its self-contained DC24V valve for compact zoning.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X800S-08B the Right Choice?
When sizing, compare this 50mm bore (982N push at 0.5MPa) against the neighboring 40mm (628N) and 63mm (1559N) options to match your load. The safe working load is about 589N. Confirm the DC24V coil and terminal entry suit your control system. The cylinder body rates to 1.0MPa, but you must size force strictly within the 0.15-0.8MPa valve operating range. By default the rod retracts when the coil is energised; you can reconfigure it to extend-when-energised by repositioning the valve. The built-in valve routes air and is not a load lock; for held loads add an external rod lock or pilot-operated check valve. At 800mm stroke, prevent rod bending by managing side loads with external guides.
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 SAUF50X800S-08B FAQ
It delivers 982N push and 825N pull at 0.5MPa. The built-in valve is a 4M210-08 (5/2 solenoid) with 1/4" port, 16mm2 flow (Cv 0.89), and 5 cycles/sec max. The coil is DC24V with terminal entry. Although the cylinder body rates to 1.0MPa, the assembled unit must operate within the 0.15-0.8MPa valve window.
By default the rod retracts when energised, but you can reposition the valve to extend-when-energised. The 5/2 valve only routes air; it is not a load lock. If air is lost, the piston drifts and the 21mm cushion only decelerates near stroke end. Use an external rod lock or pilot-operated check valve to hold a load.
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