Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 800mm 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
- Stroke800 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08A
The AirTAC SAIF40X800-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Driven by an AC220V terminal coil drawing 3.5 VA, it delivers a 628N push force at 0.5 MPa. The manifold links the valve to the cylinder via O8xO5 PU tubing, meaning the 1/4" valve port is distinct from the cylinder's 1/4" port. Because the 4M210 valve 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.
This decentralized design switches itself from one coil signal, eliminating remote valves and reducing panel space. The factory setting retracts the rod when the coil is energised, but you can reposition the valve to extend-when-energised. It responds in 0.05 s, features IP65 protection, and uses adjustable air cushions at both ends to decelerate the piston near stroke limits.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 800 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 SAIF40X800-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×800 | 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 SAIF40X800-08A Is Used
Decentralized Conveyor Diverters
Ideal for long conveyor lines where installing a remote valve island is impractical. The built-in 4M210 valve lets each diverter operate independently from a single AC220V signal.
Space-Constrained Machinery
Eliminates the need for external pneumatic tubing back to a central manifold. The integrated valve and manifold block save valuable panel and floor space in tight machine layouts.
Retrofit Automation Systems
Perfect for upgrading older machines where adding dedicated air lines is costly. The 0.05s response terminal coil integrates easily into existing 220V control wiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08A the Right Choice?
Choose this 40mm bore when a 32mm cylinder lacks thrust (the 32mm bore yields 402N push at 0.5 MPa) or a 50mm unit is excessive (yielding 982N). The 800mm stroke demands careful attention to side loads; always use a guide rail to prevent rod bending and premature seal wear. The self-valved SAIF architecture is optimal for decentralized stations where running separate valve tubing is costly.
This assembly uses a PT tapered thread and a carbon steel rod. It does not hold its load without live air pressure, as the 5/2 valve routes air rather than locking it. For position holding, consider an AirTAC SAIL lock cylinder. To replace this unit, match the 40mm bore, 800mm stroke, 1/4" valve port, AC220V terminal coil, and no magnet.
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 SAIF40X800-08A FAQ
The 40mm bore generates 628N push and 528N pull force at 0.5 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.
No, the SAIF40X800-08A switches itself using the built-in 4M210 valve driven by an AC220V terminal coil. 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.
Related AirTAC Cylinders & Valves
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