Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X250-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X250-08A is a genuine double-acting profile-type cylinder with a Ø63mm bore, 250mm 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
- Stroke250 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X250-08A
The AirTAC SAUF63X250-08A is a double-acting profile cylinder with a built-in 4M310 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 SKU uses terminal entry, PT threads, and has no magnet, so it cannot take a magnetic switch.
Within the 0.15-0.8 MPa valve operating window, this 63mm bore generates 1559N push and 1402N pull at 0.5MPa. The integrated 4M310-08 valve has a 1/4" port, Cv 1.4 flow, and cycles up to 4 times per second. For sizing, the safe working load is roughly 935N (about 60% of the 0.5MPa push force), translating to a vertical lift capacity of approximately 79kg with a 2:1 margin. The cylinder body rates to 1.0MPa, but the assembled unit is strictly limited by the valve.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X250-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X250-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 250 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 | 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 (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 SAUF63X250-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 63×250 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAUF63X250-08A Is Used
Conveyor Diverter Gate
Decentralized diverter on a long conveyor line. The integrated valve eliminates long tube runs back to a central manifold, keeping response time fast.
Packaging Machine Pusher
Single-actuator product reject station. One AC220V signal directly controls the 63mm bore, saving a manifold slot and simplifying electrical wiring.
Machine Tool Clamp
Independent clamping station on a large machine tool. The compact profile barrel fits tight cells, while the built-in 4M310 valve handles local switching.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X250-08A the Right Choice?
Size by checking both neighboring bores: the 50mm bore pushes 982N and the 80mm bore pushes 2513N at 0.5MPa. This 63mm bore delivers 1559N push at 0.5MPa, peaking at 2494N at 0.8MPa. Always size force within the valve's 0.15-0.8MPa range, never the 1.0MPa cylinder body rating. Confirm the AC220V terminal entry coil meets your supply. By default the rod retracts when energized; repositioning the valve changes it to extend-when-energized. For this 250mm stroke, ensure adequate side-load guidance. The built-in valve routes air and is not a lock; without air pressure the piston drifts and the cushion only decelerates near stroke end. Add an external rod lock or pilot-operated check valve for held 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 SAUF63X250-08A FAQ
It pushes 1559N and pulls 1402N at 0.5MPa, reaching 2494N push at 0.8MPa. The built-in valve is a 4M310-08 (1/4" port, Cv 1.4, max 4 cycles/sec). The cylinder body rates to 1.0MPa, but you must size force within the valve's 0.15-0.8MPa operating window. The coil is AC220V with terminal entry.
No remote valve is needed; one coil signal drives the integrated 5/2 valve. The valve routes air but is not a load lock. Without air the piston drifts, as the cushion only decelerates near stroke end. For vertical load holding, add an external rod lock or pilot-operated check valve.
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