Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08A
The SAUF50X900S-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 is shorter than an ISO 15552 cylinder of the same bore. This 50mm bore uses a 1/4" cylinder port, a Ø20mm rod with an M16x1.5 thread, and 21mm adjustable cushions. 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 5 cycles/sec. The AC220V terminal entry coil is IP65 rated. For sizing, the safe working load is roughly 589N, and vertical lift is about 50kg with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08A |
|---|---|
| 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 | 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 SAUF50X900S-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×900 | 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 SAUF50X900S-08A Is Used
Long-Stroke Diverters
Drives 900mm sorting gates on conveyor lines directly from one AC220V signal, cutting tubing runs to a central manifold.
Vertical Lift Gates
Raises access doors in automated warehouses, lifting up to 50kg vertically with a 2:1 safety margin at 0.5 MPa.
Decentralized Press Stands
Powers individual clamping pins across a large press, using the built-in valve to eliminate complex manifold plumbing.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X900S-08A the Right Choice?
Size this 50mm bore against the 40mm (628N push) and 63mm (1559N push) neighbors at 0.5 MPa. Verify the AC220V terminal entry and PT threads meet your specs. The default action retracts the rod when energized, but you can reposition the valve to extend on signal. Always size force within the 0.15-0.8 MPa valve range, not the 1.0 MPa cylinder body rating. The valve only routes air; it is not a lock, so 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-load wear.
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-08A FAQ
It pushes 982N and pulls 825N at 0.5 MPa. The built-in valve is a 4M210-08 with 1/4" port, Cv 0.89, and 5 cycles/sec max. The AC220V coil runs on an IP65 terminal entry. Size force within the 0.15-0.8 MPa valve operating window.
By default the rod retracts when energized. You can reconfigure it to extend on signal by repositioning the valve. This self-switching design removes the need for a remote valve while routing air to the cylinder.
Related AirTAC Cylinders & Valves
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