Airtac SAIF Series Standard Cylinder with Valve SAIF63X50-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X50-08B is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 50mm 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
- Stroke50 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF63X50-08B
The AirTAC SAIF63X50-08B is a double-acting ISO 15552 profile cylinder with a built-in 4M310-08 5/2 solenoid valve. Delivering a Cv of 1.40 and an effective orifice of 25.0 mm2, it generates 1559 N of push force at 0.5 MPa. The unit is driven by a DC24V terminal entry coil drawing 3.0 W, protected to IP65 with a 0.05 s response time. Because the manifold uses O10 x O6.5 PU tubing, the 1/4" valve port differs from the 3/8" cylinder port.
Although the base cylinder rates to 1.0 MPa, the practical SAIF operating range is 0.15-0.8 MPa due to the internal pilot valve. This assembly controls itself from one coil signal, eliminating remote valves and excess tubing for decentralized stations. Factory set to retract when energised, the valve can be repositioned to extend-when-energised. Note the air cushions only decelerate near stroke end; this unit does not hold load without live pressure.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X50-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X50-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 50 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 SAIF63X50-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×50 | 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 SAIF63X50-08B Is Used
Decentralized Stations
Ideal for large machines with multiple stations, using one DC24V signal to actuate 1559 N of force without running long valve tubing back to a central manifold.
Space-Tight Clamping
Fits compact machinery where a separate valve would exceed available envelope space, providing integrated 5/2 flow control directly on the cylinder body.
Wiring Retrofits
Simplifies electrical upgrades in older equipment by using a local 3.0 W terminal coil instead of routing complex pneumatic lines to new control islands.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X50-08B the Right Choice?
Choose this 63 mm bore when 50 mm falls short of the 879 N push force of a 40 mm cylinder, but you do not need the 2513 N thrust of an 80 mm unit. The self-valved SAIF design beats a separate cylinder and remote valve when panel space is tight and running tubing across a large machine is costly. Select the DC24V terminal coil for standard low-voltage control panels.
When ordering a replacement, confirm the 50 mm stroke, 3/8" cylinder port, 1/4" valve port, DC24V voltage, terminal entry, PT thread, and absence of a magnet. Since the stroke is under 300 mm, side-load guide concerns are minimal. For applications requiring true load holding without live pressure, consider the SAIL lock cylinder instead.
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 SAIF63X50-08B FAQ
The 63 mm bore provides 1559 N of push force and 1402 N of pull force at 0.5 MPa. The built-in 4M310-08 valve has an effective area of 25.0 mm2 and a Cv of 1.40.
It uses a 5/2 solenoid valve that holds position by pilot pressure. This specific DC24V terminal coil draws 3.0 W. The factory default retracts the rod when energised, but you can reposition the valve to extend-when-energised.
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