Airtac SAIF Series Standard Cylinder with Valve SAIF50X80-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X80-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 80mm 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
- Stroke80 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X80-08B
The AirTAC SAIF50X80-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Driven by a DC24V terminal coil drawing 3.0 W, the valve provides a 0.89 Cv flow rate to the 50mm bore, generating 982N of push force at 0.5 MPa. While the bare cylinder rates to 1.0 MPa, the built-in valve limits the practical operating range to 0.15-0.8 MPa.
From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised if needed. The manifold connects to the cylinder using O8xO5 PU tubing, meaning the 1/4 inch valve port differs from the 1/4 inch cylinder port. By switching itself from one electrical signal, this unit eliminates remote plumbing and saves panel space for decentralized machine stations.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X80-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X80-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 80 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 SAIF50X80-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×80 | 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 SAIF50X80-08B Is Used
Decentralized Stations
Ideal for large machines where running individual air tubes back to a main valve bank is inefficient, letting each station control its own actuation.
Compact Assembly
Fits into tight machinery envelopes by removing the space normally required for external valve plumbing and mounting hardware.
Retrofit Automation
Perfect for upgrading existing pneumatic setups where adding a new remote valve manifold would require extensive rewiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X80-08B the Right Choice?
Choose this 50mm bore when you need 982N push force at 0.5 MPa; step down to a 40mm bore for 628N, or up to a 63mm bore for 1559N. A self-valved SAIF beats a separate cylinder and remote valve when wiring and air tubing to a central panel is costly or impractical. This specific DC24V terminal entry model suits low-voltage control systems, and the PT threaded ports match standard Asian pneumatic fittings.
For position feedback, note this SKU lacks the -S magnet, so it cannot host CMSE reed or DMSE electronic sensors. Remember that the 5/2 valve routes air but does not lock the load mechanically—consider an AirTAC SAIL lock cylinder if you need true hold. When replacing, match the 50mm bore, 80mm stroke, 1/4 inch valve port, DC24V voltage, terminal entry, and PT thread.
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 SAIF50X80-08B FAQ
The 50mm bore generates 982N push and 825N pull force at 0.5 MPa. The integrated 4M210-08 valve has an effective area of 16.0 mm2 and a 0.89 Cv flow rate.
It uses a 5/2 solenoid valve that holds position via internal pilot pressure. This specific model uses a DC24V terminal coil. By default, the rod retracts when energised, but you can reposition the valve to extend-when-energised.
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