Airtac SAIF Series Standard Cylinder with Valve SAIF63X350-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X350-08B 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 SAIF63X350-08B
The AirTAC SAIF63X350-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. Driven by a DC24V terminal coil drawing 3.0 W, the valve provides a Cv of 1.40 and routes air through PU tubing (O10 x O6.5) to the 3/8 cylinder ports. Because the cylinder body rates to 1.0 MPa but the internal pilot valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa.
Generating 1559 N of push force at 0.5 MPa, this self-contained unit eliminates the need for a separate remote valve, saving panel space and tubing in decentralized machine stations. The factory setting retracts the rod when the coil is energised, though you can reposition the valve to extend-when-energised. It features standard carbon steel rod material and PT tapered threads.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X350-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X350-08B |
|---|---|
| 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 SAIF63X350-08B
| 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 SAIF63X350-08B Is Used
Decentralized Automation
Perfect for large machines with multiple stations, eliminating long tubing runs by switching the cylinder directly via a single DC24V signal.
Medium Thrust Actuation
Provides 1559 N of push force at 0.5 MPa for clamping, lifting, or pressing tasks where a compact self-valved footprint is required.
Space-Constrained Retrofits
Ideal for upgrading older machines where adding a remote valve manifold is difficult, using the built-in 4M310 valve and terminal wiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X350-08B the Right Choice?
Choose this 63 mm bore when a 50 mm bore (delivering 982 N push at 0.5 MPa) lacks thrust, but an 80 mm bore (2513 N) is excessive. The 350 mm stroke is well within the 1500 mm standard maximum, but at this length you should implement a guide mechanism to prevent excessive side-loading on the rod. The integrated 4M310-08 valve hits a max frequency of 4 cycles per second, making it ideal for localized automation.
The built-in 5/2 valve routes air to the cylinder but does not lock the load mechanically; if you need true hold without live pressure, consider the SAIL lock variant. To replace this unit, match the 63 mm bore, 350 mm stroke, 08 (1/4) valve port, 3/8 cylinder port, DC24V voltage, terminal entry, PT threads, and no magnet (-S omitted).
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 SAIF63X350-08B FAQ
At 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. The integrated 4M310-08 5/2 valve has an effective area of 25.0 mm2 (Cv 1.40).
No, the SAIF63X350-08B has a built-in 4M310-08 valve actuated by a DC24V (3.0 W) terminal coil. By factory default, the piston rod retracts when the coil is energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
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