Airtac SAIF Series Standard Cylinder with Valve SAIF63X125S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X125S-08B is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 125mm 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
- Stroke125 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF63X125S-08B
The AirTAC SAIF63X125S-08B is a double-acting ISO 15552 profile cylinder engineered with a built-in 4M310-08 5/2 solenoid valve, delivering a Cv of 1.40 and a 25.0 mm2 effective orifice. Driven by a DC24V terminal-entry coil drawing 3.0 W, it activates in 0.05 s or less. Although the bare cylinder body is rated for 1.0 MPa, the integrated valve operates at 0.15-0.8 MPa, establishing the true working pressure range for this assembly. It generates 1559 N of push force and 1402 N of pull force at 0.5 MPa.
By integrating the valve directly onto a manifold block via O10 x O6.5 PU tubing, this unit eliminates the need for a remote valve island, reducing panel space and plumbing. Factory-set to retract the piston rod when the coil is energised, the 5/2 valve can be repositioned to extend-when-energised if your sequence demands it. The -S suffix denotes an integrated magnet for precise position sensing using AirTAC CMSE reed or DMSE electronic solid-state switches.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X125S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X125S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 125 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 SAIF63X125S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×125 | 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 SAIF63X125S-08B Is Used
Decentralized Automation Cells
Ideal for large machines with multiple stations, letting each 63 mm bore actuator switch locally via its built-in 4M310 valve without a massive central pneumatic panel.
Material Diverters
Provides robust 1559 N push force at 0.5 MPa for diverting heavier packages, with the DC24V coil ensuring fast 0.05 s switching cycles.
Compact Assembly Presses
Fits into tight machine footprints where space is restricted, using the integrated manifold and O10 x O6.5 PU tubing to minimize external plumbing.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X125S-08B the Right Choice?
Choose this 63 mm bore when a 50 mm bore falls short on thrust (982 N push at 0.5 MPa) but an 80 mm bore is excessive (2513 N push at 0.5 MPa). The self-contained SAIF architecture is optimal for decentralized machine stations where routing wiring for a single DC24V terminal coil is far simpler than running pneumatic tubing back to a central manifold. The cylinder features PT1/4 ports, while the 4M310 valve utilizes a 1/4 inch port. Remember that the 5/2 valve routes air but does not mechanically lock the load; if you need fail-safe holding, consider the SAIL lock variant.
When replacing this assembly, verify the 63 mm bore, 125 mm stroke, 1/4 inch valve port, DC24V voltage, terminal electrical entry, PT thread type, and the -S magnet. The carbon steel piston rod handles standard loads well, but for any stroke length at or above 300 mm, always use external guide rails to prevent side-load damage to the cylinder seals.
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 SAIF63X125S-08B FAQ
At 0.5 MPa, this 63 mm bore cylinder outputs 1559 N of push force and 1402 N of pull force. The integrated 4M310-08 5/2 valve provides an effective area of 25.0 mm2 with a Cv of 1.40.
No, the 5/2 valve is internal piloted and holds its position pneumatically without a spring. It is factory-set to retract when the DC24V coil is energised, but you can reposition the valve on the manifold to extend-when-energised instead.
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