Airtac SAIF Series Standard Cylinder with Valve SAIF63X250S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X250S-08A is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 250mm 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
- Stroke250 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF63X250S-08A
The AirTAC SAIF63X250S-08A is a double-acting profile cylinder with a built-in 4M310-08 5/2 solenoid valve, delivering a Cv of 1.40 and an effective area of 25.0 mm2. Driven by an AC220V terminal coil that consumes 3.5 VA, it activates in 0.05 s or less and carries an IP65 rating. While the cylinder body rates to 1.0 MPa, the practical operating range for this valved unit is 0.15-0.8 MPa. It delivers 1559 N of push force at 0.5 MPa.
This assembly integrates the valve directly onto the cylinder via a manifold block using O10 x O6.5 PU tubing, eliminating the need for remote plumbing. The cylinder features a 3/8 port, while the valve utilizes a 1/4 port. Factory-set to retract the rod when the coil is energised, the valve can be repositioned to extend-when-energised. The -S magnet option supports CMSE reed and DMSE electronic sensors for position feedback.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X250S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X250S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAIF63X250S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×250 | 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 SAIF63X250S-08A Is Used
Decentralized Automation Cells
Ideal for large factory layouts where running individual valve tubing back to a central manifold is costly, allowing each station to control itself independently.
Compact Machine Integration
Saves valuable panel and footprint space by mounting the 5/2 valve and manifold directly onto the profile cylinder body.
Wiring Retrofit Projects
Perfect for upgrades where adding a single AC220V electrical signal is far easier than routing new pneumatic lines across a complex machine.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X250S-08A the Right Choice?
Choose this 63 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is insufficient, but an 80 mm bore (2513 N push) is excessive. The self-contained SAIF design excels in decentralized stations across large machines, cutting panel space and tubing runs by switching directly from one coil signal rather than relying on a separate remote valve. Remember that the 5/2 valve routes air and does not hold the load without live pressure; for true mechanical locking, consider the SAIL series instead.
With a 250 mm stroke, ensure adequate guiding to prevent side-load damage to the carbon steel rod and seals. To replace this unit, match the 63 mm bore, 250 mm stroke, 4M310-08 valve with 1/4 port, AC220V terminal coil, PT thread type, and the -S magnet option.
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 SAIF63X250S-08A FAQ
The cylinder provides 1559 N of push force and 1402 N of pull force at 0.5 MPa. The built-in 4M310-08 5/2 valve has an effective area of 25.0 mm2 (Cv 1.40) and a maximum frequency of 4 cycles per second.
No, the 4M310-08 valve is built-in. By default, the piston rod retracts when the AC220V coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve.
Related AirTAC Cylinders & Valves
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