Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 250mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke250 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06B
The AirTAC SAIF40X250S-06B is a double-acting profile cylinder with a built-in 4M210-06 5/2 solenoid valve, delivering a 628N push force at 0.5 MPa. Driven by a DC24V terminal coil consuming 3.0 W, it switches itself from a single electrical signal. This eliminates remote valves and excess plumbing, making it ideal for decentralized machine stations. The assembly operates safely within 0.15-0.8 MPa, as the valve limits the cylinder's 1.0 MPa base rating.
By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve. The manifold connects via an O8 x O5 PU tube, and the valve's 1/8 inch port differs from the cylinder's 1/4 inch port. Equipped with a magnet, this unit supports CMSE reed and DMSE electronic sensors for precise positioning.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| 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 SAIF40X250S-06B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×250 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAIF40X250S-06B Is Used
Decentralized Assembly Stations
Eliminates the need for a central valve bank by controlling the cylinder directly at the station, reducing tubing runs across large machinery.
Space-Constrained Machinery
The integrated 4M210 valve manifold saves valuable panel and footprint space where routing external valve plumbing is physically impossible.
Retrofit & Upgrade Projects
Ideal for upgrading older pneumatic lines where adding new valve tubing is costly, requiring only a single DC24V electrical signal to operate.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06B the Right Choice?
Choose this self-valved SAIF unit to save panel space and wiring compared to running a separate cylinder and remote valve. If your application requires less force, stepping down to a 32mm bore yields 402N push at 0.5 MPa; for heavier loads, a 50mm bore provides 982N. This DC24V terminal entry model suits standard control panels, while the PT 1/8 valve port offers a 14.0 mm2 effective area (Cv 0.78). When ordering a replacement, match the 40mm bore, 250mm stroke, 1/8 valve port, DC24V voltage, terminal entry, PT thread, and -S magnet. For this 250mm stroke, ensure adequate guide support to handle side loads and prevent rod deflection. Note that the 5/2 valve routes air but does not lock the load; for position holding, consider a SAIL lock cylinder.
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 SAIF40X250S-06B FAQ
The 40mm bore generates a 628N push force and 528N pull force at 0.5 MPa. The built-in 4M210-06 valve has a 14.0 mm2 effective area (Cv 0.78) and a maximum frequency of 5 cycles per second.
The 5/2 valve routes air but does not lock the load without live pressure. Factory-set to retract when the DC24V coil is energised, the valve can be repositioned to extend-when-energised. This self-contained switching removes the need for a separate remote valve.
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