
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X500S-08B is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 500mm 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 SAIF63X500S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. This specific build utilizes a DC24V terminal coil drawing 3.0 W, paired with a PT1/4 valve port that feeds the cylinder via an O10 x O6.5 PU tube. Because the manifold mounts the valve directly, you drive the 500 mm stroke from a single electrical signal, eliminating remote plumbing. The assembled unit operates safely within the 0.15-0.8 MPa valve range, even though the bare cylinder rates to 1.0 MPa.
Equipped with a magnet (-S), this model supports AirTAC CMSE reed and DMSE electronic sensors for precise end-position detection. Delivering 1559 N push force at 0.5 MPa, it handles substantial loads. By factory default, the piston rod retracts when the coil is energised, but you can reconfigure the valve to extend-when-energised by simply repositioning it. The 5/2 valve holds its position via internal pilot pressure, not a spring, meaning it routes air continuously without locking the load.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X500S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 500 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. |
|---|---|
| 63×500 | 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).
Perfect for large-scale assembly lines where installing individual remote valves is impractical, saving panel space and simplifying wiring.
Provides robust 1559 N push force to actuate diverters and gates directly on the conveyor frame using only a DC24V signal.
Ideal for upgrading existing machinery where running long pneumatic tubes is difficult, as the self-contained valve handles switching locally.
Choose this 63 mm bore when a 50 mm cylinder (offering 982 N push at 0.5 MPa) is underpowered, but an 80 mm unit is physically excessive. The integrated 4M310-08 valve provides a Cv of 1.40 and a 25.0 mm2 effective area, flowing enough air for a 500 mm stroke at 30-800 mm/s. This decentralized design is ideal for large machines where routing air lines to a central panel is costly, as it requires only a main air supply and a DC24V terminal connection. For any load-holding requirements, note that neither the 5/2 valve nor the adjustable air cushions act as a brake; consider an AirTAC SAIL lock cylinder instead.
At 500 mm, the stroke is well within the 1500 mm standard maximum, but you should use side-load guides to prevent rod bending. To replace this unit, match the 63 mm bore, 500 mm stroke, PT3/8 cylinder port, 4M310-08 valve, DC24V terminal coil, PT thread, and the -S magnet option.
Quick checklist
At 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. The integrated 4M310-08 valve has an effective area of 25.0 mm2 (Cv 1.40) and supports a maximum frequency of 4 cycles per second.
The 4M310 valve is internally piloted and operates on 0.15-0.8 MPa of air pressure, requiring no separate pilot line. It is a 5/2 valve that holds its last position via pilot pressure, not a spring, but it does not lock the load. By default, the rod retracts upon coil energisation, which can be reconfigured to extend by repositioning the valve.
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