Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 250mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke250 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06A
The AirTAC SAIF40X250S-06A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-06 5/2 solenoid valve. This specific configuration uses a 1/8" valve port with a Cv of 0.78 and a 14.0 mm2 effective area, driving a 40mm bore that generates 628N of push force at 0.5 MPa. It includes a magnet for position sensing and uses a carbon steel piston rod. Because the cylinder body rates to 1.0 MPa but the built-in valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa.
Wired for AC220V with a terminal electrical entry, the coil consumes 3.5 VA and responds in 0.05 seconds or less. The manifold connects to the cylinder via an O8 x O5 PU tube, meaning the 1/8" valve port and the cylinder's 1/4" port are distinct. 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 remote valves and excess tubing, making it ideal for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| 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 SAIF40X250S-06A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×250 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAIF40X250S-06A Is Used
Decentralized Assembly Lines
Eliminates the need for a central valve bank, allowing independent control of multiple clamps across a large factory floor using only a single coil signal per station.
Space-Constrained Machinery
The integrated manifold block saves valuable panel and tubing space, making it highly effective for compact automated equipment where routing external air lines is difficult.
Retrofit Automation
Perfect for upgrading existing ISO 15552 interchangeable setups where running new valve tubing is costly, simply wiring the AC220V terminal connection to drive the action.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X250S-06A the Right Choice?
Choose this 40mm bore if your application requires around 628N push force at 0.5 MPa; stepping down to a 32mm bore drops the push force to 402N, while stepping up to a 50mm bore increases it to 982N. A self-valved SAIF unit is superior to a separate cylinder and remote valve when you need to minimize panel space and wiring across decentralized machine stations. Since the stroke is 250mm, ensure adequate guiding to prevent excessive side loading on the rod. For load-holding applications, note that the 5/2 valve routes air but does not lock the load—consider AirTAC SAIL or BSAI series for pneumatic locking needs. Replacement requires matching the 40mm bore, 250mm stroke, 1/8" valve port, AC220V terminal coil, PT thread, and -S 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 SAIF40X250S-06A FAQ
The 40mm bore generates 628N of push force and 528N of pull force at 0.5 MPa. The built-in 4M210-06 valve has a 14.0 mm2 effective area with a Cv of 0.78.
It uses a 5/2 solenoid valve that holds position via internal pilot pressure. This specific model uses an AC220V terminal coil (3.5 VA, IP65). By default, the rod retracts when energised, but you can reposition the valve to extend-when-energised, eliminating the need for a separate remote valve.
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