Airtac SAIF Series Standard Cylinder with Valve SAIF40X125-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X125-08A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 125mm 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
- Stroke125 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X125-08A
The AirTAC SAIF40X125-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This specific SKU is configured with a PT 1/4 cylinder port, a 1/4 valve port, and an AC220V terminal entry coil drawing 3.5 VA. The built-in valve provides an effective flow area of 16.0 mm2 (Cv 0.89) and supports a max frequency of 5 cycles per second. Because the valve manifold routes air directly via O8xO5 PU tubing, you eliminate remote plumbing.
While the bare cylinder body rates to 1.0 MPa, the practical operating pressure for this valved assembly is 0.15-0.8 MPa, yielding a push force of 628 N at 0.5 MPa. By default, the piston rod retracts when the coil is energised, but you can reposition the valve to extend on signal. The assembly switches itself from one coil signal, making it ideal for decentralized stations across a large machine.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X125-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X125-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 125 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 SAIF40X125-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×125 | 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 SAIF40X125-08A Is Used
Decentralized Stations
Eliminates the need for a remote valve island on large machines by switching directly at the cylinder, drastically reducing tubing costs.
Compact Assembly Machines
Fits neatly into space-tight automation cells where external valve plumbing would clutter the envelope or interfere with moving parts.
Retrofit Upgrades
Ideal for upgrading existing ISO 15552 fixtures where running new pneumatic lines to a central manifold is prohibitively expensive.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X125-08A the Right Choice?
Choose this 40 mm bore when you need 628 N of push force at 0.5 MPa; stepping down to a 32 mm bore drops output to 402 N, while a 50 mm bore increases it to 982 N. The integrated 4M210 valve means you skip running long air lines back to a central panel, saving space and wiring time in tight machinery. The AC220V terminal connection offers solid IP65 protection with a 0.05 s activation time.
This unit does not hold its load without live pressure, as the 5/2 valve routes air rather than locking it. For position holding, consider an AirTAC SAIL lock cylinder. When ordering a replacement, verify the 125 mm stroke, PT 1/4 threads, AC220V voltage, terminal entry, and absence of a magnet (-S). The 125 mm stroke is short enough that side-load guides are typically unnecessary, but always ensure axial alignment.
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 SAIF40X125-08A FAQ
At 0.5 MPa, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. The integrated 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89).
No, it features a built-in 4M210 5/2 valve driven by an AC220V terminal coil. By factory default, the rod retracts when energised, but you can reposition the valve to extend on signal.
Related AirTAC Cylinders & Valves
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