Airtac SAIF Series Standard Cylinder with Valve SAIF50X700-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X700-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 700mm 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
- Stroke700 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X700-08B
The AirTAC SAIF50X700-08B is a double-acting ISO 15552 profile cylinder equipped with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89. Driven by a DC24V terminal coil drawing 3.0 W, it eliminates the need for a separate remote valve. The assembly operates at 0.15-0.8 MPa, as the integrated valve limits the cylinder's 1.0 MPa maximum. At 0.5 MPa, it provides 982N of push force.
By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve. The manifold connects to the cylinder bore using O8xO5 PU tubing, while the valve port is 1/4 inch and the cylinder port is 1/4 inch. This decentralized design simplifies machine wiring and reduces panel space.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X700-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X700-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 700 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 SAIF50X700-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×700 | 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 SAIF50X700-08B Is Used
Decentralized Machine Stations
Ideal for large machines where installing a remote valve bank is impractical, as the built-in 5/2 valve allows the cylinder to switch itself from a single DC24V signal.
Long-Stroke Assembly Lines
Provides 982N of push force at 0.5 MPa over a 700mm stroke, suitable for pushing or lifting tasks on automated assembly lines.
Space-Constrained Retrofits
Perfect for upgrading existing machinery where panel space is limited, eliminating the need for external valve plumbing and reducing installation time.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X700-08B the Right Choice?
Choose this 50mm bore when a 40mm bore falls short of the 628N push force at 0.5 MPa, but a 63mm bore's 1559N is excessive. The 700mm stroke is well within the 1200mm standard maximum for this bore. Because the stroke is 700mm, ensure adequate side-load support and use a guide to prevent rod bending and premature seal wear. This self-valved SAIF unit is ideal for decentralized stations where running separate valve tubing is costly, saving space and wiring. It uses a DC24V terminal connection with PT thread. Remember that the 5/2 valve routes air but does not hold the load without live pressure; for true position holding, consider the SAIL lock cylinder. To replace this model, match the 50mm bore, 700mm stroke, 1/4 inch valve port, DC24V voltage, terminal entry, PT thread, and no magnet.
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 SAIF50X700-08B FAQ
At an operating pressure of 0.5 MPa, the 50mm bore provides a push force of 982N and a pull force of 825N. The practical working pressure for the assembled unit is 0.15-0.8 MPa.
It features a 4M210-08 5/2 solenoid valve with a Cv of 0.89. By factory default, the piston rod retracts when the DC24V coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve.
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