Airtac SAIF Series Standard Cylinder with Valve SAIF40X175-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X175-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 175mm 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
- Stroke175 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X175-08B
The AirTAC SAIF40X175-08B is a double-acting profile cylinder dimensionally interchangeable per ISO 15552, featuring a built-in 4M210-08 5/2 solenoid valve that delivers a 16.0 mm2 flow area (Cv 0.89). Wired for DC24V via a terminal entry, the coil consumes 3.0 W, features IP65 protection, and activates in 0.05 s or less. Because the manifold links the valve to the cylinder using O8 x O5 PU tubing, the 1/4" valve port differs from the cylinder's own 1/4" port.
While the bare carbon steel rod cylinder rates to 1.0 MPa, the internal pilot valve operates at 0.15-0.8 MPa, setting the practical working range for the assembly. Generating 628 N of push force at 0.5 MPa, this self-switching unit defaults to retracting the rod when the coil is energised but can be reconfigured to extend on signal by repositioning the valve. This integrated design eliminates remote plumbing, saving panel space for decentralized machine stations.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X175-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X175-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 175 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 SAIF40X175-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×175 | 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 SAIF40X175-08B Is Used
Decentralized Assembly Stations
Ideal for large machines where running remote valve tubing is costly; the integrated 4M210 valve lets this 40mm cylinder switch itself from a single DC24V signal.
Space-Constrained Machinery
Eliminates the panel footprint of a separate valve island, fitting a 628N thrust actuator and its 5/2 pilot valve directly into tight automation cells.
Wiring Retrofits
Simplifies electrical upgrades on older lines by using a terminal entry DC24V coil, dropping pneumatic hoses in favor of a single low-voltage control wire.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X175-08B the Right Choice?
Choose this 40 mm bore when an application requires around 628 N of push force at 0.5 MPa; step down to a 32 mm bore for 402 N, or up to a 50 mm bore for 982 N. A self-valved SAIF is ideal when running separate valve tubing is costly or space-prohibitive, as one DC24V terminal signal drives the actuator directly. Select this specific 1/4" valve port and DC24V terminal configuration to match standard control voltages.
Remember the built-in 5/2 valve routes air but does not lock the load without live pressure; for position holding, consider an AirTAC SAIL lock cylinder. To replace this unit, match the 40 mm bore, 175 mm stroke, 4M210-08 valve, DC24V voltage, terminal entry, PT thread, and standard carbon steel rod (no -S magnet). For this 175 mm stroke, ensure standard mounting supports the load.
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 SAIF40X175-08B FAQ
The 40mm bore generates 628 N of push and 528 N of pull force at 0.5 MPa. The built-in 4M210-08 valve provides a 16.0 mm2 effective area (Cv 0.89) with a maximum frequency of 5 cycles per second.
No, the integrated 5/2 valve switches the cylinder directly from one DC24V coil signal. By factory default, the piston rod retracts when the coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve.
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