Airtac SAIF Series Standard Cylinder with Valve SAIF50X900-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X900-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 900mm 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
- Stroke900 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X900-08B
The AirTAC SAIF50X900-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This specific configuration uses a DC24V terminal entry coil that consumes 3.0 W, offering IP65 protection and a rapid 0.05 s activation time. Because the manifold connects to the cylinder via O8 x O5 PU tubing, the valve port (1/4 inch) operates independently from the cylinder port (also 1/4 inch). The valve provides a 16.0 mm2 effective area (Cv 0.89) and switches up to 5 cycles per second.
While the cylinder body is rated for 1.0 MPa, the built-in valve limits the practical operating pressure to 0.15-0.8 MPa. At 0.5 MPa, this 50 mm bore generates 982 N of push force and 825 N of pull force. From the factory, the default setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. This self-contained design eliminates remote plumbing, saving panel space for decentralized machine stations.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X900-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X900-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 900 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 SAIF50X900-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×900 | 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 SAIF50X900-08B Is Used
Long-Stroke Diversion
Ideal for decentralized conveyor sorting lines where a 900 mm reach is needed to push packages, eliminating the need to run long air tubes back to a main control panel.
Space-Constrained Automation
Perfect for large assembly machines with tight panel space, using the built-in 4M210-08 valve to drive the actuator locally via a single DC24V electrical signal.
Machine Retrofitting
Simplifies upgrading older equipment by avoiding the installation of new external valve islands, relying instead on the cylinder's self-contained PT1/4 manifold and terminal wiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X900-08B the Right Choice?
Choose this 900 mm stroke model when you need long linear travel with integrated switching. At 0.5 MPa it provides 982 N push force; if your application requires less force, stepping down to a 40 mm bore yields 628 N, while a 63 mm bore upgrades thrust to 1559 N. Because this stroke is 900 mm, mounting a guide rod is highly recommended to prevent excessive side-loading and premature seal wear. The carbon steel piston rod and PT tapered threads are standard.
A self-valved SAIF beats a separate cylinder and remote valve when wiring and air tubing to a central panel are costly or impractical. This unit requires only a DC24V signal to operate. Remember that the 5/2 valve routes air but does not lock the load mechanically; if you need true position holding without live pressure, consider the SAIL lock variant. For exact replacement matching, verify the 50 mm bore, 900 mm stroke, 1/4 inch valve port, DC24V voltage, terminal entry, and absence of a sensor 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 SAIF50X900-08B 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 5/2 valve has an effective area of 16.0 mm2 (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
No, the SAIF50X900-08B switches itself using the built-in 4M210-08 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 if needed.
Related AirTAC Cylinders & Valves
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