Airtac SAIF Series Standard Cylinder with Valve SAIF40X350S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X350S-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 350mm stroke and a built-in 4M210-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke350 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X350S-08B
The AirTAC SAIF40X350S-08B is a double-acting profile cylinder dimensionally interchangeable per ISO 15552, featuring a built-in 4M210-08 5/2 solenoid valve. This valve delivers a 16.0 mm2 effective area (Cv 0.89) and is driven by a DC24V terminal coil consuming 3.0 W. The integrated manifold uses an O8 x O5 PU tube to bridge the valve and cylinder, meaning the 1/4" valve port differs from the cylinder's own 1/8" port. Equipped with a magnet, it works seamlessly with CMSE reed and DMSE electronic sensors.
Although the cylinder body rates to 1.0 MPa, the practical operating range for this valved assembly is 0.15-0.8 MPa. The 40mm bore generates 628N of push force at 0.5 MPa. By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised simply by repositioning the valve. This self-switching design eliminates remote valves, reducing tubing and panel space for decentralized machine stations.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X350S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X350S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-08 (5/2) |
|---|---|
| Valve flow | 16.0 mm² (Cv 0.89) |
| Max frequency | 5 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 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 SAIF40X350S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×350 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAIF40X350S-08B Is Used
Decentralized Automation
Ideal for large machines with multiple stations, eliminating long tubing runs by mounting the valve directly on the cylinder.
Compact Assembly Lines
Saves valuable panel space by integrating the 4M210 valve, requiring only a single DC24V electrical signal to actuate.
Retrofit & Upgrades
Perfect for upgrading existing ISO 15552 setups where running new pneumatic tubing to a remote valve is costly or complex.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X350S-08B the Right Choice?
Choose this 40mm bore when you need 628N push force at 0.5 MPa; step down to a 32mm bore for 402N, or up to a 50mm bore for 982N if your load requires more thrust. A self-valved SAIF beats a separate cylinder and remote valve when decentralizing stations across a large machine, as it cuts plumbing and only needs a single DC24V terminal signal. The 4M210-08 valve handles up to 5 cycles per second.
For stroke lengths of 350mm or greater, add an external guide to manage side loads and prevent rod binding. To replace this unit, match the 40mm bore, 350mm stroke, 1/4" valve port, DC24V voltage, terminal entry, PT thread, and the -S magnet. Note that the 5/2 valve routes air but does not lock the load; use a SAIL lock cylinder for position holding.
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 SAIF40X350S-08B FAQ
The 40mm bore generates 628N push force and 528N pull force at 0.5 MPa. The built-in 4M210-08 5/2 valve has a 16.0 mm2 orifice with a Cv of 0.89.
No, the SAIF40X350S-08B switches itself from a single DC24V terminal coil signal. By factory default, the rod retracts when energised, but you can reposition the valve to extend-when-energised.
Related AirTAC Cylinders & Valves
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