
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X225S-06A 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-06A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-06 5/2 solenoid valve. This specific build pairs a 1/8" valve port with a 1/4" cylinder port, connecting via PU tubing (O8 x O5). Driven by an AC220V terminal-entry coil drawing 3.5 VA, it activates in 0.05 s. The assembled unit operates safely within 0.15-0.8 MPa, as the valve limits the cylinder's 1.0 MPa base rating. At 0.5 MPa it delivers 982N push force, and includes a magnet for CMSE reed or DMSE solid-state sensors.
By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve. This self-switching design eliminates remote plumbing, saving panel space for decentralized machine stations. The 5/2 valve holds position via internal pilot pressure, not a spring, but it will not lock a load without live air.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X225S-06A |
|---|---|
| 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 | 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 | 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. |
| 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).
Eliminates the need for long air runs from a central manifold, using a single AC220V signal to drive local clamping at 982N push force.
The integrated 4M210-06 valve saves valuable panel and footprint space while providing precise 0.05s switching for automated tooling.
Ideal for upgrading existing lines where adding dedicated valve islands is too costly, simply drop in the self-valved cylinder and wire the terminal.
Choose this 50mm bore when 40mm cylinders fall short on thrust; a 40mm bore provides 628N push at 0.5 MPa, whereas this 50mm unit yields 982N. If your application needs less force and faster cycling, stepping down is ideal. The SAIF format beats a separate cylinder plus remote valve when wiring and space are tight, as one AC220V terminal signal drives the entire actuator. For 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. To replace this unit, match the 50mm bore, 225mm stroke, 1/8" valve port, AC220V terminal coil, PT threads, and the -S magnet. Since the stroke is 225mm, ensure adequate guiding to prevent excessive side loads on the rod.
Quick checklist
The 50mm bore generates 982N push and 825N pull force at 0.5 MPa. The built-in 4M210-06 valve has an effective area of 14.0 mm2 (Cv 0.78) and supports a max frequency of 5 cycles per second.
It uses a 5/2 internally piloted valve. Factory set to retract when energised, it can be repositioned to extend when energised. The AC220V terminal coil draws 3.5 VA, features IP65 protection, and activates in 0.05 s, eliminating the need for a separate remote valve.
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