Airtac SAIF Series Standard Cylinder with Valve SAIF50X50-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X50-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 50mm 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
- Stroke50 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X50-08B
The AirTAC SAIF50X50-08B is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. Driven by a DC24V terminal coil drawing 3.0 W, the integrated valve provides an effective flow of 16.0 mm2 (Cv 0.89) and responds in 0.05 s. The cylinder body features a PT1/4 port and a carbon steel piston rod. Because the manifold block routes air via O8xO5 PU tubing, the valve port differs from the cylinder port.
This decentralized design eliminates remote valves and excess plumbing, saving panel space across large machines. While the cylinder body rates to 1.0 MPa, the built-in valve limits the practical SAIF operating pressure to 0.15-0.8 MPa. In the factory default state, the piston rod retracts when the coil is energised; this behavior can be reconfigured to extend-when-energised by repositioning the valve. At 0.5 MPa it yields 982 N of push force and 825 N of pull force.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X50-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X50-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 50 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 | 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.
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 SAIF50X50-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×50 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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).
Where the Airtac SAIF Series Standard Cylinder with Valve SAIF50X50-08B Is Used
Decentralized Machine Stations
Ideal for large automated lines where installing a central valve island is impractical, allowing local control directly at the actuator.
Compact Assembly Automation
The built-in valve manifold saves valuable footprint on dense machinery, reducing external tubing and simplifying wiring.
Retrofit and Upgrades
Perfect for upgrading existing pneumatic setups where routing new air lines for a remote valve is too expensive or complex.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X50-08B the Right Choice?
Choose this 50 mm bore when an application requires around 982 N of push force at 0.5 MPa; stepping down to a 40 mm bore drops output to 628 N, while an 80 mm bore increases it to 2513 N. The self-contained SAIF architecture is optimal for space-tight machines or decentralized stations where running separate valve tubing is costly. A single DC24V terminal electrical connection drives both the valve and cylinder.
This assembly operates at 30-800 mm/s. The 5/2 valve routes air but does not lock the load mechanically; for position holding under lost pressure, consider an AirTAC SAIL lock cylinder. To match this exact unit for replacement, verify the 50 mm bore, 50 mm stroke, 1/4 inch valve port, PT threads, DC24V voltage, terminal entry, and standard carbon steel rod. No magnet is specified, so CMSE or DMSE sensors cannot be used without modification.
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 SAIF50X50-08B FAQ
At 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. The integrated 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89) and a maximum frequency of 5 cycles per second.
No, the SAIF50X50-08B switches itself using the built-in 4M210 5/2 valve driven by a DC24V terminal coil. By factory default, energising the coil retracts the rod, but the valve can be repositioned to extend-when-energised.
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