Airtac SAIF Series Standard Cylinder with Valve SAIF40X75-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X75-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 75mm 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
- Stroke75 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X75-08B
The AirTAC SAIF40X75-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Driven by a DC24V terminal coil drawing 3.0 W, it delivers a Cv of 0.89 and generates 628N of push force at 0.5 MPa. The cylinder port is PT1/4, while the valve manifold feeds it via an O8xO5 PU tube. Because the valve body operates at 0.15-0.8 MPa, this defines the practical working range for the assembled unit, even though the bare cylinder rates to 1.0 MPa.
By switching itself from a single coil signal, this unit eliminates remote plumbing and saves panel space, making it ideal for decentralized stations. The factory setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. The 5/2 valve holds its position via pilot pressure, not a spring, and the air cushions only decelerate the rod near stroke end—they do not lock the load.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X75-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X75-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAIF40X75-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×75 | 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 SAIF40X75-08B Is Used
Decentralized Assembly Lines
Eliminates the need for a central valve bank, allowing independent 5/2 control directly at each station to reduce tubing costs.
Compact Clamping Fixtures
Saves valuable panel space by integrating the 4M210 valve and cylinder into one assembly, ideal for tight machine envelopes.
Retrofit Automation
Simplifies machine upgrades by replacing separate cylinder and remote valve setups with a single DC24V terminal-driven unit.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X75-08B the Right Choice?
Choose this self-valved SAIF40X75-08B when you need to consolidate wiring and tubing across a large machine. If your application requires less force, step down to the 32mm bore (402N push at 0.5 MPa); if you need more power, the 50mm bore offers 982N. This specific DC24V terminal configuration suits standard PLC outputs, and the PT thread matches legacy pneumatic fittings. When ordering a replacement, verify the 75mm stroke, 1/4 valve port, DC24V voltage, terminal entry, and absence of a magnet (-S).
For stroke lengths of 300mm or more on this series, ensure adequate side-load guidance to prevent premature seal wear. If your machine demands true load holding without live pressure, note that this 5/2 valve routes air but does not brake; consider an AirTAC SAIL lock cylinder instead.
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 SAIF40X75-08B FAQ
At 0.5 MPa, this 40mm bore cylinder provides 628N of push force and 528N of pull force. The integrated 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89) and a maximum frequency of 5 cycles per second.
No. The 5/2 valve is internal piloted and holds its last position via air pressure, not a spring. The factory default retracts the rod when the DC24V coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve.
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