
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X50S-08B is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 50mm 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.
The AirTAC SAIF63X50S-08B is a double-acting ISO 15552 profile cylinder integrating a 4M310-08 5/2 solenoid valve directly on its manifold. It delivers 1559N push force at 0.5MPa and uses a DC24V terminal coil consuming just 3.0W. Because the valve switches the cylinder from a single electrical signal, you skip remote valve plumbing and save panel space for decentralized installations. The manifold bridges the 3/8" cylinder port and 1/4" valve port using PU tubing (O10 x O6.5).
While the bare cylinder rates to 1.0MPa, the integrated valve limits the practical SAIF operating range to 0.15-0.8MPa. Factory set to retract the rod when energised, the valve can be repositioned for extend-when-energised action. This unit includes a magnet for CMSE reed and DMSE solid-state sensors.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X50S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 50 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G3/8 |
| Rod thread | M16×1.5 |
| PU tube | Ø10 × Ø6.5 |
| 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 SAIF at 0.15–0.8 MPa. Default: rod retracts when the coil is energised (reconfigurable to extend). Specs follow the official AirTAC SAIF datasheet. Port options: PT / G.
| 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.
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×50 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| B | Coil voltage DC24V. |
| I / (blank) | Terminal electrical entry. |
SAIF does not hold its load without air — the valve routes air, it is not a lock. For load-holding use a SAIL (lock) or BSAI (clamp-lock).
Install multiple self-valved units across large machines without routing pneumatic lines back to a central panel, driving local autonomy with a single DC24V signal.
Provide repeatable 1559N clamping at 0.5MPa in compact cells where external valve mounting space is restricted, leveraging the 4M310 valve's 4 cycle/sec speed.
Add actuation to existing machinery easily; the ISO 15552 mounting interface and integrated valve minimize mechanical and pneumatic rework.
Choose this 63mm bore when a 50mm bore (982N push at 0.5MPa) lacks thrust, but an 80mm bore (2513N) is excessive. The self-contained valve design eliminates tubing runs to a central manifold, cutting wiring and assembly time. For position holding under zero pressure, note this 5/2 valve routes air but does not lock; use an AirTAC SAIL lock cylinder instead. Match replacements by the 50mm stroke, 3/8" cylinder port, 1/4" valve port, DC24V terminal coil, PT threads, and -S magnet.
Quick checklist
At 0.5MPa it provides 1559N push and 1402N pull force. The built-in 4M310-08 valve has a 25.0mm2 orifice (Cv 1.40) and operates up to 4 cycles per second.
Yes. The factory setting retracts the rod when the DC24V coil is energised, but you can reposition the 5/2 valve on the manifold to extend-when-energised. It holds position via pilot pressure, not a mechanical spring.
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