Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 350mm 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
- Stroke350 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08A
The AirTAC SAIF40X350-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This specific SKU specifies an AC220V coil with a terminal electrical entry, drawing 3.5 VA and protected to IP65. The built-in valve offers an effective flow of 16.0 mm2 (Cv 0.89) and switches in 0.05 seconds. Because the cylinder body rates to 1.0 MPa but the internal pilot valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa. At 0.7 MPa, the 40mm bore generates 879 N of push force.
By default, the factory setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. This self-switching design eliminates the need for a separate remote valve, reducing panel space and tubing. The manifold connects to the cylinder via PU tubing (O8 x O5), and note that the valve port (1/4) differs from the cylinder port (1/4) in their respective functional roles within the assembly.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 350 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 SAIF40X350-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×350 | 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 SAIF40X350-08A Is Used
Decentralized Automation
Ideal for large machines with decentralized stations, eliminating long tubing runs by switching the cylinder directly from the integrated valve.
Compact Assembly Lines
Saves valuable panel and floor space in compact manufacturing cells by removing the need for a remote valve bank and associated wiring.
Retrofit & Upgrades
Perfect for retrofits where running new valve tubing is costly, as the 4M210-08 valve and AC220V terminal coil provide a self-contained actuator.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X350-08A the Right Choice?
Choose this 40mm bore when you need 879 N of push force at 0.7 MPa; stepping down to a 32mm bore yields 563 N, while stepping up to a 50mm bore provides 1374 N. A self-valved SAIF unit is superior to a separate cylinder and remote valve when you need decentralized stations across a large machine, as it slashes plumbing and wiring complexity. For this AC220V terminal-entry model, ensure your control system matches the voltage and entry type. The 350mm stroke is well within the 1200mm standard maximum but exceeds 300mm, so you must account for potential side loads and use a suitable guide to prevent rod damage. If your application requires true load holding without live pressure, note that the 5/2 valve routes air but does not lock the load—consider the SAIL series instead. Replacement requires matching the 40mm bore, 350mm stroke, 1/4 valve port, AC220V terminal coil, PT thread, and no magnet (-S).
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 SAIF40X350-08A FAQ
The 40mm bore generates 879 N of push force at 0.7 MPa. The integrated 4M210-08 5/2 valve has an effective area of 16.0 mm2 (Cv 0.89) and a maximum frequency of 5 cycles per second.
The built-in 4M210 valve allows the cylinder to switch itself from one AC220V coil signal, reducing plumbing and panel space. By default, the rod retracts when the coil is energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
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