
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X225S-06B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 225mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
The AirTAC SAIF50X225S-06B is a double-acting profile cylinder with a built-in 4M210-06 5/2 solenoid valve, delivering a 0.78 Cv flow rate. Driven by a DC24V terminal coil drawing 3.0W, it eliminates the need for a remote valve bank. The integrated manifold uses an O8xO5 PU tube to bridge the valve to the cylinder body, keeping your plumbing minimal. Because the valve operates at 0.15-0.8 MPa, this defines the practical working pressure for the assembled unit, even though the bare cylinder rates to 1.0 MPa.
This 50mm bore generates 982N of push force at 0.5 MPa and includes a magnet for CMSE reed or DMSE electronic sensors. From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised if your sequence demands it. It is a true ISO 15552 profile cylinder, dimensionally interchangeable with standard ISO mounts, but adds a self-switching manifold block for decentralized machine layouts.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X225S-06B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 225 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| Max frequency | 5 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 | 982 N | 825 N |
| 0.7 MPa | 1374 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. |
|---|---|
| 50×225 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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).
Mounts directly at the station to actuate clamps without routing long pneumatic lines back to a central valve manifold, saving wiring and tubing time.
Uses the integrated 5/2 valve to rapidly switch the diverting arm at 0.78 Cv, fitting into tight transfer zones where panel space is restricted.
Ideal for upgrading older lines where adding a new remote valve bank is costly; the DC24V terminal coil wires straight to the local controller.
Choose this self-valved SAIF50X225S-06B when you need decentralized control and want to cut panel space; it switches itself from one DC24V signal, removing the cost of running long valve tubing back to a central island. If you need more thrust, stepping up to the 63mm bore yields 1559N at 0.5 MPa, while dropping to a 40mm bore reduces the footprint but limits you to 628N. The 225mm stroke is well under the 1200mm standard maximum, but at this length you should still verify external guide rails to prevent side-load wear on the rod seals.
When specifying a replacement, confirm the 50mm bore, 225mm stroke, PT1/8 valve port, PT1/4 cylinder port, DC24V voltage, terminal entry, and the -S magnet. Remember that the built-in 5/2 valve routes air but does not lock the load; for position holding under zero pressure, look to the SAIL lock series instead.
Quick checklist
At 0.5 MPa, this 50mm bore double-acting cylinder provides 982N of push force and 825N of pull force. The maximum push force reaches 1767N at 0.7 MPa.
The built-in 4M210-06 5/2 valve allows the cylinder to control itself from a single DC24V signal, eliminating separate remote valves for decentralized installations. By default, the rod retracts when energised, but you can reposition the valve to extend-when-energised.
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