
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X500S-08A is a genuine double-acting ISO 15552 cylinder with a Ø80mm 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 SAIF80X500S-08A is a double-acting ISO 15552 profile cylinder equipped with a built-in 4M310-08 5/2 solenoid valve. Featuring a 500mm stroke and an 80mm bore, it delivers 2513N of push force at 0.5 MPa. The integrated valve offers a 25.0 mm2 orifice (Cv 1.40) and operates at 4 cycles per second. This specific configuration includes a carbon steel rod, a magnetic piston for CMSE reed and DMSE electronic sensors, and an AC220V terminal coil consuming 3.5 VA with an IP65 rating. Because the valve limits the pressure, the practical working range for this assembled unit is 0.15-0.8 MPa, even though the cylinder body rates to 1.0 MPa.
By default, the factory setting retracts the piston rod when the coil is energised, but you can reconfigure it to extend-when-energised simply by repositioning the valve. The manifold connects to the cylinder using O10 x O6.5 PU tubing. Note the distinct port sizes: the cylinder port is 3/8, while the valve port is 1/4. This self-switching design eliminates the need for a separate remote valve, drastically reducing tubing and panel space for decentralized machine stations.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X500S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 500 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| 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 | 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 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 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. |
|---|---|
| 80×500 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| A | Coil voltage AC220V. |
| 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 machines with distributed stations, using one AC220V signal to drive the cylinder without remote valve plumbing.
The 500mm stroke and 2513N force class suit long-travel clamping or lifting tasks, provided external guide rails support the load.
Ideal for machine upgrades where adding a separate valve island is impossible, leveraging the built-in 4M310 valve and PT1/4 port.
Choose this 80mm bore when a 63mm bore (1559N push at 0.5 MPa) is insufficient, but a 100mm bore (3927N) is excessive. The 500mm stroke requires careful attention to side-load; always use a guide rail to prevent rod binding. The built-in 4M310-08 valve makes this unit ideal for decentralized installations where routing pneumatic tubing from a central manifold is costly or impractical. The AC220V terminal entry coil simplifies wiring to standard mains power. Remember that the 5/2 valve routes air but does not lock the load; if you need true position holding without live pressure, consider the SAIL lock or BSAI clamp-lock series. When ordering replacements, match the 80mm bore, 500mm stroke, 1/4 valve port, AC220V voltage, PT thread, terminal entry, and the -S magnet.
Quick checklist
The 80mm bore generates 2513N push and 2268N pull force at 0.5 MPa. The built-in 4M310-08 valve has a 25.0 mm2 effective area (Cv 1.40) and a maximum frequency of 4 cycles per second.
No, the 5/2 valve routes air but does not hold the load without live pressure. By default, the rod retracts when the coil is energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
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