Airtac SAIF Series Standard Cylinder with Valve SAIF80X450-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X450-08A is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 450mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ80 mm
- Stroke450 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X450-08A
The AirTAC SAIF80X450-08A is a double-acting ISO 15552 profile cylinder equipped with a built-in 4M310-08 5/2 solenoid valve. This integrated valve delivers a Cv of 1.40 and operates at a maximum frequency of 4 cycles per second. Driven by an AC220V coil with a standard terminal electrical entry, it consumes 3.5 VA and responds in 0.05 seconds. The cylinder features a carbon steel piston rod and PT tapered port threads. Because the valve operates at 0.15-0.8 MPa, the practical working pressure for the assembled SAIF unit is 0.15-0.8 MPa, even though the bare cylinder rates to 1.0 MPa.
Offering a robust push force of 2513N at 0.5 MPa, this self-contained actuator eliminates the need for separate remote valves and extensive pneumatic plumbing. The manifold connects the valve to the cylinder using PU tubing, making it ideal for decentralized stations across large machines. 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. Note that the 5/2 valve routes air and does not lock the load; for position holding, consider the SAIL series.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X450-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X450-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 450 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| PU tube | Ø10 × Ø6.5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 cycle/sec |
| Coil voltage | AC220V · AC 3.5 VA |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 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 SAIF80X450-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×450 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| A | Coil voltage AC220V. |
| 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 SAIF80X450-08A Is Used
Decentralized Automation Stations
Perfect for large assembly lines where running individual valve tubing back to a central manifold is costly. The integrated 4M310 valve allows direct local control.
High-Force Clamping Fixtures
Provides 2513N of push force at 0.5 MPa for securing heavy components during machining operations, without needing external valve hardware.
Space-Constrained Machinery
Ideal for compact equipment layouts where panel space is limited. The built-in valve and short PU tubing drastically reduce the overall pneumatic footprint.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X450-08A the Right Choice?
Select this 80mm bore model when your application requires substantial thrust, such as the 2513N push force at 0.5 MPa or 3518N at 0.7 MPa. If your force requirements are lower, stepping down to the 63mm bore yields 1559N at 0.5 MPa, whereas moving to the 100mm bore provides 3927N at 0.5 MPa. The SAIF80X450-08A is optimal for machines where installing a separate cylinder and remote valve is impractical due to space constraints or wiring complexity. It bundles the exact configuration needed: an 80mm bore, 450mm stroke, 4M310-08 valve with a 1/4" valve port, AC220V voltage, terminal entry, and PT threads. Since the stroke is 450mm, ensure adequate guiding to prevent excessive side loads on the piston rod. This unit does not include a magnet for sensors; adding the -S option enables CMSE reed or DMSE electronic switches.
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 SAIF80X450-08A FAQ
At 0.5 MPa, the 80mm bore provides a push force of 2513N and a pull force of 2268N. If you increase the pressure to 0.7 MPa, the push force reaches 3518N. The maximum push force is 513 kgf at 1.0 MPa, but the practical working pressure is limited to 0.15-0.8 MPa by the built-in valve.
It uses a 4M310-08 5/2 solenoid valve internally piloted, operating at 0.15-0.8 MPa. The standard AC220V coil uses a terminal entry and draws 3.5 VA. Factory-set to retract the rod when energised, the valve can be repositioned to extend-when-energised. It holds position via pilot pressure, not a spring, but does not lock the load mechanically.
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