Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08A
The AirTAC SAIF63X400-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. This specific SKU specifies a PT1/4 valve port, AC220V coil voltage, and a terminal electrical entry. The built-in valve delivers a Cv of 1.40 with a 25.0 mm2 effective area, driving the 63mm bore to 1559N push force at 0.5 MPa. Because the cylinder body rates to 1.0 MPa but the internal piloted valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa.
By default, the piston rod retracts when the AC220V coil is energised, but this can be reconfigured to extend-when-energised simply by repositioning the valve. The manifold uses O10 x O6.5 PU tubing, and the cylinder port is 3/8 while the valve port is 1/4. This decentralized design eliminates the need for a separate remote valve, reducing panel space and tubing runs across large machines. The carbon steel piston rod operates at 30-800 mm/s without requiring additional lubrication.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08A |
|---|---|
| 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 | 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 (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 SAIF63X400-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×400 | 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 SAIF63X400-08A Is Used
Decentralized Automation Stations
Ideal for large factory layouts where routing individual valve tubing back to a central panel is costly. The integrated 4M310 valve lets one AC220V signal directly control the 63mm bore.
Long-Stroke Material Handling
The 400mm stroke provides extended reach for pushing or lifting tasks. Ensure external guidance is used to manage side loads on the carbon steel rod during movement.
Space-Constrained Machine Retrofits
When adding a new pneumatic station to an existing machine, the built-in valve eliminates the need to find space for a separate valve island, simplifying installation.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X400-08A the Right Choice?
Choose this self-valved SAIF63X400-08A when a machine layout benefits from decentralized control rather than running long air lines back to a central manifold. Stepping down to a 50mm bore drops the 0.5 MPa push force to 982N, whereas moving up to an 80mm bore increases it to 2513N. At a 400mm stroke, the assembly is susceptible to side loads; ensure adequate external guide rails are used to prevent rod binding and premature seal wear.
For load-holding applications, note that the 5/2 valve routes air and does not lock the piston mechanically—consider an AirTAC SAIL lock cylinder if the load must be held without live pressure. When ordering a replacement, verify the 63mm bore, 400mm stroke, 1/4 valve port, AC220V terminal coil, PT thread, and absence of a magnet (-S).
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 SAIF63X400-08A FAQ
The 63mm bore generates 1559N of push force and 1402N of pull force at 0.5 MPa. While the cylinder itself rates to 1.0 MPa, the practical operating range is 0.15-0.8 MPa because the built-in 4M310 valve operates within that pressure limit.
The integrated 4M310-08 is a 5/2 (5 port, 2 position) solenoid valve. By factory default, the rod retracts when the AC220V coil is energised. You can reconfigure it to extend-when-energised by repositioning the valve on the manifold block.
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