Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 800mm 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
- Stroke800 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08B
The AirTAC SAIF50X800S-08B is a double-acting ISO 15552 profile cylinder equipped with a built-in 4M210-08 5/2 solenoid valve, providing a Cv of 0.89. Driven by a DC24V terminal entry coil consuming 3.0 W, it achieves IP65 protection and a rapid 0.05 s activation time. The integrated manifold uses an O8 x O5 PU tube, meaning the 1/4" valve port and the cylinder's 1/4" port are cleanly separated without external plumbing.
While the bare cylinder rates to 1.0 MPa, the practical operating range for this assembled SAIF unit is 0.15-0.8 MPa due to the internal pilot valve limits. Delivering 982 N of push force at 0.5 MPa, it includes an -S magnet for CMSE reed and DMSE electronic sensors. By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised simply by repositioning the valve.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 800 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 SAIF50X800S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×800 | 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 SAIF50X800S-08B Is Used
Decentralized Assembly Stations
Eliminates the need to run long valve tubing from a central panel, driving the 800mm stroke directly from a local DC24V signal.
Space-Constrained Machinery
The integrated 4M210-08 valve manifold saves valuable footprint while providing 982 N of thrust for compact CNC loading.
Retrofit Automation
Ideal for upgrading older machines where adding a separate valve island is too costly, using the existing DC24V terminal wiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08B the Right Choice?
Choose this self-valved SAIF50X800S-08B when decentralizing actuation across a large machine eliminates the need for a remote valve bank, saving panel space and tubing. If your application requires less force, step down to a bore 40 unit offering 628 N push at 0.5 MPa; if you need more thrust, step up to a bore 63 cylinder providing 1559 N. To replace this unit, match the 50mm bore, 800mm stroke, 4M210-08 valve, DC24V terminal coil, PT thread, and -S magnet. For any stroke at or above 300 mm, such as this 800mm travel, add external guide rails to prevent excessive side-loading on the rod.
Remember that the built-in 5/2 valve routes air but does not lock the load mechanically. If your machine requires true position holding without live pressure, select the AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on the valve or the end-of-stroke air cushions.
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 SAIF50X800S-08B FAQ
The 50mm bore generates 982 N push force and 825 N pull force at 0.5 MPa. The built-in 4M210-08 5/2 valve has an effective area of 16.0 mm2 (Cv 0.89) and a maximum frequency of 5 cycles per second.
No, it switches itself from a single DC24V terminal coil signal. By default, the rod retracts when the coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve.
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