Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08B is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 400mm 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.
- BoreØ63 mm
- Stroke400 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08B
The AirTAC SAIF63X400-08B is a double-acting ISO 15552 profile cylinder with a built-in 4M310-08 5/2 solenoid valve, offering a Cv of 1.40. Driven by a DC24V terminal entry coil consuming 3.0W, it activates in 0.05s. The base cylinder rates to 1.0MPa, but because the internal pilot valve operates at 0.15-0.8MPa, the practical working range for this assembled unit is 0.15-0.8MPa. It delivers 1559N of push force and 1402N of pull force at 0.5MPa.
By default, the piston rod retracts when the coil is energised, though this can be reconfigured to extend-when-energised by simply repositioning the valve. The manifold connects the valve to the cylinder using O10 x O6.5 PU tubing. Because it switches itself from one coil signal, no remote valve is needed, saving panel space and making it ideal for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G3/8 |
| Rod thread | M16×1.5 |
| 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 | 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 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 SAIF63X400-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×400 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAIF63X400-08B Is Used
Decentralized Automation
Perfect for large machine grids where running valve tubing back to a main panel is costly, this cylinder controls itself locally via a single DC24V signal.
Extended Stroke Handling
With a 400mm stroke and 1559N push force, it handles long-travel material push-off or part ejection tasks while keeping the footprint compact.
Space-Constrained Retrofits
Ideal for upgrading older machines where panel space is full, as the built-in 4M310 valve eliminates the need to mount a separate valve island.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08B the Right Choice?
Selecting this self-valved SAIF unit over a separate cylinder and remote valve minimises plumbing and wiring complexity. If your application requires less force, stepping down to a 50mm bore yields 982N of push at 0.5MPa; if you need more power, an 80mm bore provides 2513N. For this 400mm stroke, adding an external guide is recommended to prevent excessive side-load wear on the rod. Remember that the 5/2 valve routes air but does not lock the load; for position holding, consider the SAIL lock cylinder. When replacing, match the 63mm bore, 400mm stroke, PT1/4 cylinder port, 4M310-08 valve, DC24V terminal coil, 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 SAIF63X400-08B FAQ
It delivers 1559N of push and 1402N of pull at 0.5MPa. The built-in 4M310-08 5/2 valve has an effective area of 25.0mm2 (Cv 1.40) with a maximum frequency of 4 cycles per second.
This model uses a DC24V terminal entry coil. No separate remote valve is needed as the valve is built-in. By factory default, the rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve.
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