Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08A
The AirTAC SAIF80X250-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. This specific SKU utilizes a PT tapered thread for both the 3/8 inch cylinder port and the 1/4 inch valve port, which links to the manifold via PU tubing. Equipped with a carbon steel piston rod and a 250mm stroke, it delivers 2513N of push force at 0.5 MPa. Because the valve body operates at 0.15-0.8 MPa, this defines the practical working pressure range for the assembled unit, even though the bare cylinder rates to 1.0 MPa.
This assembly is driven by an AC220V coil with a standard terminal electrical entry, drawing 3.5 VA and offering IP65 protection. By default, the factory setting retracts the piston rod when the coil is energised, but you can reconfigure it to extend-when-energised simply by repositioning the valve. Switching itself from a single coil signal, it eliminates remote plumbing and saves panel space, making it highly effective for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08A |
|---|---|
| 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 | 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 (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 SAIF80X250-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×250 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAIF80X250-08A Is Used
Decentralized Machine Stations
Ideal for large factory layouts where running separate valve tubing back to a central manifold is costly, letting each 80mm station control itself locally.
Space-Constrained Automation
The integrated valve block saves valuable panel and machine envelope space, delivering 2513N of force without requiring a remote valve island.
Pneumatic Retrofits
Perfect for upgrading existing ISO 15552 interchangeable setups where adding a standalone valve would complicate the existing frame or wiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X250-08A the Right Choice?
Selecting this 80mm bore model makes sense when a 63mm bore (offering 1559N push at 0.5 MPa) is insufficient, but a 100mm bore (3927N) would be overkill. The self-valved SAIF80X250-08A outperforms a separate cylinder and remote valve setup by drastically reducing tubing runs and wiring complexity in decentralized architectures. It uses a 4M310-08 valve with a 1.40 Cv flow coefficient, supporting a maximum frequency of 4 cycles per second. Ensure you match the 250mm stroke, 3/8 inch cylinder port, 1/4 inch valve port, AC220V terminal coil, PT thread, and standard carbon steel rod (no -S magnet) when specifying replacements.
For any stroke length of 300mm or greater, you must account for potential side loads and implement external guide mechanisms to prevent rod damage. Furthermore, 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.
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 SAIF80X250-08A FAQ
The 80mm bore generates 2513N push force and 2268N pull force at 0.5 MPa. The built-in 4M310-08 5/2 valve provides an effective area of 25.0 mm2 (Cv 1.40) with a maximum frequency of 4 cycles per second.
It uses an AC220V terminal-entry coil consuming 3.5 VA with an IP65 rating and a 0.05s response time. The factory default retracts the rod when energised, but you can reconfigure it to extend-when-energised by repositioning the valve.
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