Airtac SAIF Series Standard Cylinder with Valve SAIF50X100-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X100-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 100mm 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
- Stroke100 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X100-08B
The AirTAC SAIF50X100-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This specific SKU is configured with a DC24V terminal electrical entry consuming 3.0 W, providing a self-switching actuator that eliminates the need for remote plumbing. The built-in valve offers a 16.0 mm2 effective area (Cv 0.89) and operates at 5 cycles per second, driving a 50 mm bore that generates 982 N of push force at 0.5 MPa.
Because the 4M210 valve limits the working pressure to 0.15-0.8 MPa, the practical operating range for this assembled unit is 0.15-0.8 MPa despite the cylinder body rating. The manifold connects to the cylinder via O8 x O5 PU tubing, and the factory default setting retracts the rod when the coil is energised, which can be reconfigured to extend-when-energised by repositioning the valve. This decentralized design saves panel space and simplifies machine wiring.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X100-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X100-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 100 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 SAIF50X100-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×100 | 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 SAIF50X100-08B Is Used
Decentralized Assembly Lines
Eliminates the need for long air tubing runs back to a central manifold, allowing individual DC24V stations to control clamping directly at the point of operation.
Compact Machining Cells
Saves valuable panel space by integrating the 4M210 valve directly onto the cylinder body, ideal for tight envelopes where external valves would interfere with tooling.
Retrofit Sorting Diverts
Provides a fast 5 cycle/sec switching capability with Cv 0.89 flow, perfect for upgrading existing conveyor lines where adding dedicated valve islands is cost-prohibitive.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X100-08B the Right Choice?
Choose this 50 mm bore when you need 982 N push force at 0.5 MPa; step down to a 40 mm bore (628 N push) for lighter loads, or up to a 63 mm bore (1559 N push) if higher thrust is required. The self-valved SAIF architecture is superior to a separate cylinder and remote valve when you need decentralized stations with minimal tubing, as one DC24V coil signal directly controls the actuator. The 1/4 inch cylinder port and 1/4 inch valve port keep airflow balanced for speeds between 30-800 mm/s.
Remember that the 5/2 valve routes air and is not a locking mechanism; if your application requires load holding under zero pressure, consider the SAIL lock variant instead. When replacing this unit, match the 50 mm bore, 100 mm stroke, PT 1/4 port thread, 4M210-08 valve, DC24V terminal coil, and standard carbon steel rod. For stroke lengths of 300 mm or more, ensure adequate guide support to prevent side-load wear on the profile barrel.
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 SAIF50X100-08B FAQ
At 0.5 MPa, the 50 mm bore generates 982 N of push force and 825 N of pull force. The integrated 4M210-08 valve provides an effective area of 16.0 mm2 (Cv 0.89) to drive these loads at speeds up to 800 mm/s.
The 5/2 valve is internal piloted and holds its last position via pilot pressure, not a spring. By factory default, the coil retracts the rod when energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
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