Airtac SAIF Series Standard Cylinder with Valve SAIF63X350S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X350S-08B is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 350mm 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
- Stroke350 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF63X350S-08B
The AirTAC SAIF63X350S-08B is a double-acting ISO 15552 profile cylinder equipped with an integrated 4M310-08 5/2 solenoid valve. This built-in valve provides an effective flow area of 25.0 mm2 (Cv 1.40) and mounts directly via a manifold block using O10 x O6.5 PU tubing. Driven by a DC24V terminal-entry coil consuming 3.0 W, it achieves IP65 protection and a 0.05 s activation time. The cylinder bore is 63 mm, generating 1559 N of push force at 0.5 MPa. Because the valve operates at 0.15-0.8 MPa, the practical working range for the assembled SAIF unit is 0.15-0.8 MPa, even though the bare cylinder rates to 1.0 MPa.
By integrating the valve directly onto the cylinder body, this unit eliminates the need for a separate remote valve, reducing plumbing and panel space for decentralized machine stations. A single coil signal drives the cylinder, and the factory default setting retracts the piston rod when the coil is energised. You can reconfigure the valve position to extend-when-energised if your logic requires it. This -S model includes a magnet for position sensing with AirTAC CMSE reed and DMSE electronic switches.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X350S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X350S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAIF63X350S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×350 | 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 SAIF63X350S-08B Is Used
Decentralized Automation Cells
Perfect for distributed stations on large assembly lines, eliminating long air tubes back to a central valve island.
Space-Constrained Machinery
Integrates the 5/2 valve directly on the cylinder body, saving valuable panel and floor space in tight equipment layouts.
Retrofit and Upgrades
Simplifies machine upgrades by replacing a standard cylinder and remote plumbing with a single self-switching unit driven by one DC24V signal.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X350S-08B the Right Choice?
Choose this 63 mm bore SAIF when you need higher force than the 50 mm bore (which provides 982 N push at 0.5 MPa) but do not require the full 2513 N push force of the 80 mm version. The self-valved design is ideal for large machines where running individual valve tubing to a central manifold is costly and space-prohibitive. Select this specific DC24V terminal configuration when matching low-voltage control panels, ensuring the 3.0 W coil power meets your circuit capacity. The cylinder port is PT1/4, while the valve port is 1/4 inch, and the thread type is PT. To replace this unit, match the 63 mm bore, 350 mm stroke, 08 valve port, DC24V voltage, terminal entry, PT thread, and -S magnet. Since the stroke is 350 mm, ensure adequate side-load support and use a guide rail to prevent rod binding.
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 SAIF63X350S-08B FAQ
The 63 mm bore generates 1559 N of push force and 1402 N of pull force at 0.5 MPa. The built-in 4M310-08 valve provides an effective area of 25.0 mm2 (Cv 1.40) and operates at a maximum frequency of 4 cycles per second.
No, the integrated 4M310 5/2 valve controls the cylinder directly from one DC24V coil signal. By factory default, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised. Note that it does not hold the load without live pressure; for locking, consider the SAIL series.
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