Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 125mm stroke and a built-in 4M210-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ50 mm
- Stroke125 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A
The AirTAC SAIF50X125-08A is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. Driven by an AC220V terminal coil drawing 3.5 VA, it delivers a Cv of 0.89 with a 0.05s activation time. Because the cylinder body rates to 1.0 MPa but the integrated valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa. It generates 982N of push force at 0.5 MPa.
This decentralized design eliminates the need for a separate remote valve, reducing plumbing and panel space. The manifold connects to the cylinder via O8xO5 PU tubing, distinguishing the 1/4" valve port from the cylinder's own 1/4" port. Factory-set to retract the rod when energized, the valve can be repositioned to extend on signal. The standard carbon steel rod and PT tapered threads ensure durable, leak-free pneumatic performance.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 125 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-08 (5/2) |
|---|---|
| Valve flow | 16.0 mm² (Cv 0.89) |
| 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×125 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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).
Where the Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A Is Used
Decentralized Assembly Stations
Eliminates remote valve plumbing, allowing independent control of multiple clamping points across a large machine layout.
Space-Constrained Machinery
The integrated 4M210 valve saves valuable panel space, fitting high-force actuation into compact equipment frames.
Retrofit Automation
Ideal for upgrading existing lines where routing new air tubing back to a central manifold is prohibitively expensive.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A the Right Choice?
Choose this 50mm bore when you need roughly 982N push force at 0.5 MPa, stepping up from a 40mm bore (628N) or down from a 63mm bore (1559N). A self-valved SAIF excels in space-tight machines or decentralized stations where running tubing back to a main valve manifold is costly. The AC220V terminal connection suits standard plant power, and because no -S magnet is specified here, add it if you require CMSE reed or DMSE electronic sensors for position feedback. For load-holding, note that the 5/2 valve routes air but does not lock the piston; consider a SAIL lock cylinder for braking applications. Replacement requires matching the 50mm bore, 125mm stroke, 08 valve port, AC220V voltage, terminal entry, and PT threads.
Quick checklist
- ✓ Force at 0.15–0.8 MPa
- ✓ Coil voltage matches panel
- ✓ Terminal vs grommet entry
- ✓ Retract- or extend-when-energised
- ✓ Load-holding → SAIL / BSAI
Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08A FAQ
At 0.5 MPa, this 50mm bore cylinder provides 982N of push force and 825N of pull force. The built-in 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
The integrated 4M210 5/2 valve lets the cylinder switch itself from one AC220V coil signal, drastically reducing tubing and panel space. It is factory-set to retract when energized but can be reconfigured to extend on signal by repositioning the valve.
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