Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08B 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 SAIF40X350-08B
The AirTAC SAIF40X350-08B is a double-acting ISO 15552 profile cylinder paired with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89. Driven by a DC24V terminal coil drawing 3.0W, it eliminates the need for a remote valve bank. Because the integrated valve operates at 0.15-0.8 MPa, this defines the practical working pressure range for the assembly, even though the bare cylinder rates to 1.0 MPa.
This configuration delivers 628N of push force at 0.5 MPa. The manifold connects the valve to the cylinder body using O8xO5 PU tubing, meaning the 1/4" valve port differs from the cylinder's own 1/4" port. Factory-set to retract the rod when the coil energizes, the valve can be repositioned to extend-when-energized if your sequence demands it.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08B |
|---|---|
| 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 SAIF40X350-08B
| 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 SAIF40X350-08B Is Used
Decentralized Stations
Eliminates long tubing runs from a central panel by mounting the 4M210 valve directly on the cylinder for localized control.
Compact Assembly Machines
Saves valuable manifold space by driving the 628N cylinder directly from a single DC24V terminal connection.
Retrofit Installations
Ideal for upgrading older machines where routing new pneumatic lines to a remote valve is costly or complex.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08B the Right Choice?
Choose this 40mm bore when you need 628N push force at 0.5 MPa; step down to the 32mm bore for 402N if space is tight, or up to the 50mm bore for 982N if loads increase. A self-valved SAIF is superior to a separate cylinder and remote valve when panel space is scarce and decentralized machine stations are preferred, as it switches itself from a single DC24V signal.
For this 350mm stroke, add an external guide to prevent side-loading and premature seal wear. Note that the 5/2 valve routes air but does not lock the load mechanically; for true position holding, consider the SAIL lock series. To replace this unit, match the 40mm bore, 350mm stroke, 1/4" valve port, DC24V terminal coil, PT thread, and standard carbon steel rod without a magnet.
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 SAIF40X350-08B FAQ
The 40mm bore generates 628N push and 528N pull force at 0.5 MPa. The built-in 4M210-08 valve provides an effective flow area of 16.0 mm2 (Cv 0.89).
The built-in 5/2 valve allows the cylinder to switch itself from one DC24V signal without a separate remote valve. Factory-set to retract when energized, it can be repositioned to extend when energized.
Related AirTAC Cylinders & Valves
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