Airtac SAIF Series Standard Cylinder with Valve SAIF40X250-06A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X250-06A 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 SAIF40X250-06A
The AirTAC SAIF40X250-06A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-06 5/2 solenoid valve. Equipped with an AC220V terminal coil, this unit delivers a 14.0 mm2 effective area (Cv 0.78) and generates 628N of push force at 0.5 MPa. 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 the assembled SAIF is 0.15-0.8 MPa.
This self-contained design eliminates the need for remote plumbing, using an O8xO5 PU tube to bridge the manifold and cylinder. By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised simply by repositioning the valve. The AC coil consumes 3.5 VA, features IP65 protection, and responds in 0.05 s or less.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X250-06A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X250-06A |
|---|---|
| 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 SAIF40X250-06A
| 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 SAIF40X250-06A Is Used
Decentralized Assembly Stations
Eliminates the need to run long valve tubing across a large machine, driving the 40mm bore directly from a local AC220V signal.
Space-Constrained Machinery
The integrated 4M210 valve manifold block saves valuable control cabinet space while delivering 628N of push force at 0.5 MPa.
Retrofit and Upgrades
Ideal for upgrading existing ISO 15552 installations where adding a separate remote valve bank is cost-prohibitive or physically impossible.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X250-06A the Right Choice?
Choose this 40mm bore when a 32mm cylinder (402N push at 0.5 MPa) lacks thrust, but a 50mm bore (982N push at 0.5 MPa) provides excess capacity. The self-valved SAIF architecture is ideal for decentralized machine stations, cutting panel space and tubing runs compared to a separate cylinder and remote valve. When specifying this model, confirm your requirements for a 250mm stroke, PT1/8 cylinder port, 1/8" valve port, AC220V terminal connection, and no magnet (-S). For strokes of 250mm or greater, ensure adequate guide support to handle potential side loads.
Remember that the built-in 5/2 valve routes air but does not lock the load; if you need true position holding under pressure loss, consider the SAIL lock series instead. The air cushion only decelerates the piston near the stroke ends.
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 SAIF40X250-06A 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 (Cv 0.78) with a maximum frequency of 5 cycles per second.
By factory default, the rod retracts when the AC220V coil is energised. Because it uses a 5/2 pilot valve rather than a spring, you can reconfigure it to extend-when-energised by repositioning the valve on the manifold.
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