
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X900S-08A is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 900mm 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 SAIF63X900S-08S is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. This specific configuration uses an AC220V terminal coil consuming 3.5 VA, protected to IP65 with a 0.05s activation time. Because the cylinder body rates to 1.0 MPa but the internal piloted valve operates at 0.15-0.8 MPa, the practical working range for the assembled unit is 0.15-0.8 MPa. It delivers 1559N of push force at 0.5 MPa.
The unit switches itself from one coil signal, eliminating remote valves and extra tubing for decentralized machine stations. A factory setting retracts the piston rod when the coil energises, which you can reconfigure to extend-when-energised by repositioning the valve. The manifold connects using O10xO6.5 PU tubing, and the valve port (1/4) differs from the 3/8 cylinder port. This -S variant includes a magnet for CMSE reed and DMSE electronic sensors.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X900S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 900 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 | 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 | 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. |
|---|---|
| 63×900 | 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).
Ideal for large machines with distributed stations, eliminating long pneumatic tubing runs by switching directly from the integrated valve.
Provides reliable 1559N push force at 0.5 MPa for extended-reach clamping tasks where space for a separate valve island is unavailable.
Handles 900mm stroke diverting gates on conveyors, using the 4M310 valve's 4 cycles/sec frequency for responsive actuation.
Choose this 63mm bore if you need higher thrust than the 50mm bore (982N push at 0.5 MPa) but want a smaller envelope than the 80mm option (2513N push at 0.5 MPa). A self-valved SAIF63 beats a separate cylinder and remote valve when panel space is tight and running tubing across a large machine is costly. Remember the 5/2 valve routes air but does not lock the load; for position holding, select the SAIL lock series instead. To replace this unit, match the 900mm stroke, 3/8 cylinder port, 4M310-08 valve, AC220V terminal coil, PT threads, and -S magnet.
Since the 900mm stroke is long, ensure adequate side-load guidance to prevent rod bending and premature seal wear. The variable air cushions at both ends decelerate the piston near stroke end, but external guides are recommended for this length.
Quick checklist
The 63mm bore generates 1559N push force and 1402N pull force at 0.5 MPa. The built-in 4M310-08 5/2 valve has an effective area of 25.0 mm2 (Cv 1.40) and a max frequency of 4 cycles per second.
No, the 5/2 solenoid valve routes air but does not lock the load without live pressure. By default, the rod retracts when the coil energises, but you can reconfigure it to extend-when-energised by repositioning the valve.
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