Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125-08A is a genuine double-acting profile-type cylinder with a Ø63mm bore, 125mm 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
- Stroke125 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125-08A
The SAUF63X125-08A is a double-acting profile cylinder with a built-in AirTAC 4M310-08 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. It uses a Ø20 mm rod with an M16x1.5 thread, and the cylinder air port is 3/8".
Operating within the valve's 0.15-0.8 MPa window, this bore pushes 1559 N and pulls 1402 N at 0.5 MPa. The 1/4" valve port yields a Cv of 1.4 and supports up to 4 cycles per second. For sizing, the safe working load is roughly 935 N (about 60% of the 0.5 MPa push force), translating to a vertical lift capacity of approximately 79 kg with a 2:1 margin. The AC220V terminal entry coil is IP65 rated.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 125 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 SAUF63X125-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 63×125 | 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 SAUF63X125-08A Is Used
Sorting Diverter
Decentralized diverter gates on a high-speed conveyor use the built-in valve to switch locally without routing air lines back to a central manifold.
Clamp Station
Independent machining clamps operate from a single AC220V signal, with the 4M310-08 valve handling the 1/4" port air flow directly at the actuator.
Package Stopper
Individual package stops on a packaging line leverage the compact profile and self-contained switching to save install time across multiple stations.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF63X125-08A the Right Choice?
Size this model against its neighbors: a 50 mm bore pushes 982 N, while an 80 mm bore pushes 2513 N at 0.5 MPa. This 63 mm bore provides 1559 N push force, so select it when your load sits near that 935 N safe working threshold. Confirm the AC220V terminal entry and PT thread match your supply. The cylinder body rates to 1.0 MPa, but you must size force within the built-in valve's 0.15-0.8 MPa operating range. By default the rod retracts when the coil is energised, but you can reposition the valve to extend on signal. Since this SKU lacks the -S magnet, it cannot accept a magnetic switch. The valve only routes air, so for load holding on pressure loss add an external rod lock or pilot-operated check valve. For this 125 mm stroke side-load is minimal, but for any stroke over 300 mm add guide rails to prevent rod binding.
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 SAUF63X125-08A FAQ
It pushes 1559 N and pulls 1402 N at 0.5 MPa, reaching 2494 N at 0.8 MPa. The built-in valve is a 4M310-08 5/2 solenoid with a 1/4" port, Cv 1.4, and a 4 cycle/sec limit. The coil is AC220V with terminal entry. Although the cylinder body rates to 1.0 MPa, the assembled unit operates strictly within the valve's 0.15-0.8 MPa range.
Yes, the default action retracts the rod when the coil is energised, but you can reconfigure it to extend by repositioning the valve. The valve only routes air and is not a lock; the piston will drift on air loss. For load holding, install an external rod lock or pilot-operated check valve.
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