Airtac SAIF Series Standard Cylinder with Valve SAIF40X225S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X225S-08A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 225mm 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
- Stroke225 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X225S-08A
The AirTAC SAIF40X225S-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This specific build includes a -S magnet for position sensing with CMSE reed and DMSE electronic switches. The bundled valve offers a 16.0 mm2 effective area (Cv 0.89) and operates via an AC220V terminal coil consuming 3.5 VA. Because the valve manifold mounts directly using PU tubing (O8 x O5), it eliminates remote plumbing.
Although the cylinder body rates to 1.0 MPa, the practical operating range for the assembled SAIF unit is 0.15-0.8 MPa due to the internal pilot valve limits. The 40 mm bore generates 628 N of push force at 0.5 MPa. Factory configured to retract the rod when the coil is energised, the valve can be repositioned to extend-when-energised if your sequence demands it.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X225S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X225S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 225 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 | AC220V · AC 3.5 VA |
| 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 SAIF40X225S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×225 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| A | Coil voltage AC220V. |
| 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 SAIF40X225S-08A Is Used
Decentralized Assembly Stations
Ideal for large factory layouts where running individual air lines from a central manifold is costly. The integrated AC220V valve lets each station control itself.
Compact Machining Clamps
Fits neatly into tight machine envelopes. The 628 N push force at 0.5 MPa securely holds workpieces without needing bulky external valve banks.
Retrofitted Material Handling
Perfect for upgrading existing conveyor diverters. The -S magnet provides DMSE electronic switch feedback while the built-in valve simplifies wiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X225S-08A the Right Choice?
Choose this self-valved SAIF40X225S-08A when decentralizing control across a large machine eliminates the cost of running long valve tubing back to a central panel. If your application requires less force, stepping down to a 32 mm bore yields 402 N at 0.5 MPa; if you need more power, the 50 mm bore provides 982 N. To replace this unit, match the 40 mm bore, 225 mm stroke, 1/4" cylinder port, 08 (1/4") valve port, AC220V terminal coil, PT thread, and the -S magnet option. For the 225 mm stroke, ensure adequate guiding to prevent excessive side loads on the rod. Remember 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 SAIF40X225S-08A FAQ
The 40 mm bore generates 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). The integrated 4M210-08 5/2 valve provides an effective area of 16.0 mm2 (Cv 0.89) with a maximum frequency of 5 cycles per second.
You do not need a remote valve. The integrated 4M210 valve switches the cylinder directly from one AC220V terminal coil signal, saving panel space. By default, it retracts the rod when energised, but you can reposition the valve to extend-when-energised.
Related AirTAC Cylinders & Valves
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