Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X900S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X900S-08B is a genuine double-acting profile-type cylinder with a Ø63mm bore, 900mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ63 mm
- Stroke900 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X900S-08B
The SAUF63X900S-08B is a double-acting profile cylinder with a built-in AirTAC 4M 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 63mm bore uses a 3/8" air port and an M16x1.5 rod thread.
It integrates a 4M310-08 valve with a 1/4" port, Cv 1.4, and a 4 cycle/s limit. The DC24V coil offers IP65 protection with a 0.05s response. The cylinder body rates to 1.0 MPa, but the assembled unit operates strictly within the 0.15-0.8 MPa valve window. At 0.5 MPa it pushes 1559 N, giving a safe working load of about 935 N or a 79 kg vertical lift with a 2:1 margin. The S suffix adds a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X900S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X900S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 900 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 3/8" |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 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 SAUF63X900S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 63×900 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAUF63X900S-08B Is Used
Sorting Diverter
Decentralized package sorting where one coil signal per actuator pushes diverters without routing long tubing back to a central manifold.
Vertical Material Gate
Opening and closing tall storage gates using the 900mm stroke, relying on the built-in 4M310 valve to save installation space.
Long-Stroke Ejector
Ejecting machined parts from a wide machine bed, taking advantage of the 1559 N push force and the integrated magnet for position feedback.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X900S-08B the Right Choice?
Size by checking both neighbors: the 50mm bore pushes 982 N and the 80mm bore pushes 2513 N at 0.5 MPa. This 63mm bore provides 1559 N push and 1402 N pull at 0.5 MPa. Always size force within the 0.15-0.8 MPa valve range, never the 1.0 MPa cylinder body rating. Confirm the DC24V terminal entry and PT threads suit your control panel. The rod retracts when the coil is energised, but you can reposition the valve to extend on signal. The built-in valve routes air and is not a load lock; add an external rod lock or pilot-operated check valve to hold a load. Because the 900mm stroke exceeds 300mm, 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 SAUF63X900S-08B FAQ
It pushes 1559 N and pulls 1402 N at 0.5 MPa. The built-in valve is a 4M310-08 5/2 solenoid with a 1/4" port and Cv 1.4. The coil is DC24V with terminal entry. Although the cylinder body rates to 1.0 MPa, the assembled unit must operate within the 0.15-0.8 MPa valve window.
No. The built-in valve only routes air; it is not a load lock. If air is lost, the piston drifts and the 21mm adjustable cushion only decelerates near stroke end. For vertical load holding, install an external rod lock or a pilot-operated check valve.
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