Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08B is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 250mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ80 mm
- Stroke250 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08B
The AirTAC SAIF80X250-08B is a double-acting ISO 15552 profile cylinder integrating a 4M310-08 5/2 solenoid valve directly on its body. It delivers 2513N push force at 0.5MPa via a 1/4 valve port and 3/8 cylinder port, using a 10x6.5mm PU tube manifold. Driven by a DC24V terminal coil drawing 3.0W with IP65 protection and 0.05s response, it eliminates remote plumbing.
Because the built-in valve operates at 0.15-0.8MPa, this defines the practical working range despite the cylinder body rating to 1.0MPa. The factory setting retracts the carbon steel rod when energised, but you can reposition the valve to extend on signal. It switches itself from one coil signal, saving panel space and tubing across decentralized stations.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 250 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| PU tube | Ø10 × Ø6.5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 cycle/sec |
| Coil voltage | DC24V · DC 3.0 W |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 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 SAIF80X250-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×250 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| B | Coil voltage DC24V. |
| 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 SAIF80X250-08B Is Used
Decentralized Assembly Lines
Ideal for large machines where running individual valve tubing back to a central panel is costly, letting each station control its own actuation locally.
Compact Clamping Jigs
The integrated valve manifold saves valuable envelope space on tight fixtures, delivering 2513N of clamping force without external plumbing.
Retrofit Automation
Drops easily into existing ISO 15552 mounting interfaces, upgrading older systems with self-switching logic and a reliable 0.05s DC24V response.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08B the Right Choice?
Choose this 80mm bore when 50mm (982N push at 0.5MPa) is insufficient but 100mm (3927N) is oversized. The 250mm stroke suits moderate reach; for any stroke over 300mm, add external guides to manage side loads. The self-valved SAIF80X250-08B beats a separate cylinder and remote valve in space-tight machines by consolidating wiring and airflow into one decentralized unit.
This DC24V terminal entry configuration suits standard control panels, while the 1/4 valve port provides 25.0mm2 effective area (Cv 1.40). Remember the 5/2 valve routes air but does not lock the load; for position holding, specify a SAIL lock cylinder. Replacement requires matching the 80mm bore, 250mm stroke, 1/4 valve port, DC24V voltage, terminal entry, PT thread, 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 SAIF80X250-08B FAQ
At 0.5MPa, the 80mm bore provides 2513N push force and 2268N pull force. The integrated 4M310-08 valve has a 25.0mm2 effective area (Cv 1.40) to drive these loads efficiently.
No, the 5/2 solenoid valve routes air but does not lock the load. It holds its last position via internal pilot pressure, not a spring. The factory setting retracts the rod when the DC24V coil is energised, but it can be reconfigured to extend on signal.
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