Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08B is a genuine double-acting profile-type cylinder with a Ø50mm bore, 900mm 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
- Stroke900 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08B
The SAUF50X900S-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 50mm bore delivers 982N push and 825N pull at 0.5MPa, operating within the 0.15-0.8MPa valve window.
The integrated valve provides 1/4" porting with 16mm2 flow (Cv 0.89) and switches up to 5 cycles/sec. This DC24V terminal-entry coil is IP65 rated. The cylinder body rates to 1.0MPa, but the assembled unit operates at 0.15-0.8MPa. Safe working load is about 589N (60% of the 0.5MPa push), enabling a 50kg vertical lift with a 2:1 margin. The 1/4" cylinder port and M16x1.5 rod thread handle the 900mm stroke, supported by an -S piston magnet for sensors.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 900 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 SAUF50X900S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×900 | 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 SAUF50X900S-08B Is Used
Decentralized Conveyor Divert
Mounts directly on a conveyor divert arm. The built-in 4M210 valve switches the 900mm stroke locally, eliminating long tubing runs back to a central manifold.
Long-Stroke Machine Guard
Drives a 900mm safety guard on a large machine. One DC24V coil signal controls the 50mm bore, saving manifold space while providing 982N push at 0.5MPa.
Vertical Material Lift
Lifts 50kg loads vertically with a 2:1 safety margin. The -S magnet tracks position via CMSG switches, while the compact profile saves floor space.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08B the Right Choice?
Size between neighbours: the 40mm bore offers 628N push at 0.5MPa, while the 63mm bore provides 1559N. This 50mm bore gives 982N push and 825N pull at 0.5MPa. Confirm the DC24V terminal entry and PT threads. The rod retracts when the coil is energised but can be reconfigured to extend-when-energised by repositioning the valve. Size force within the 0.15-0.8MPa valve range, never the 1.0MPa cylinder body limit. The built-in valve routes air and is not a lock; add an external rod lock or pilot-operated check valve to hold loads. For the 900mm stroke, use external guides to prevent rod bending and side loads.
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 SAUF50X900S-08B FAQ
It delivers 982N push and 825N pull at 0.5MPa. The built-in 4M210-08 valve has 1/4" porting, Cv 0.89, and runs on DC24V. Although the cylinder body rates to 1.0MPa, the assembled unit operates strictly within the 0.15-0.8MPa valve window.
No. The built-in 5/2 valve routes air but is not a load lock. If air is lost, the piston drifts. For vertical load holding, install an external rod lock or a pilot-operated check valve. The rod retracts when energised but can be reconfigured to extend by repositioning the valve.
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