Airtac SAIF Series Standard Cylinder with Valve SAIF80X250S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X250S-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 SAIF80X250S-08A
The AirTAC SAIF80X250S-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. Driven by an AC220V terminal coil drawing 3.5 VA, it supplies a Cv of 1.40 and a 25.0 mm2 effective area. The cylinder body accepts PT1/4 ports, while the valve manifold feeds it via an O10 x O6.5 PU tube. Because the 5/2 valve operates from 0.15 to 0.8 MPa, this is the practical working range for the assembled unit, despite the bare cylinder rating of 1.0 MPa.
This 80 mm bore generates 2513 N of push force at 0.5 MPa and includes a magnet for CMSE reed and DMSE electronic sensors. By default, the piston rod retracts when the coil is energised, though you can reposition the valve to extend on signal. The self-contained switching eliminates remote plumbing, saving panel space and making it ideal for decentralized machine stations. It responds in 0.05 s and carries an IP65 rating.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X250S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X250S-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 SAIF80X250S-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 SAIF80X250S-08A Is Used
Decentralized Stations
Eliminates long air lines to a central panel by switching locally via the built-in 4M310 valve, perfect for large assembly lines.
Space-Tight Machinery
Fits into compact automation cells where mounting a separate directional valve is physically impossible or adds unwanted bulk.
Retrofit & Upgrades
Ideal for upgrading existing pneumatic setups where running new valve tubing is costly, needing only a single electrical signal.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X250S-08A the Right Choice?
Choose this 80 mm bore when 50 mm cylinders fall short, offering 982 N push at 0.5 MPa, or step up to 100 mm for 3927 N. The 250 mm stroke is well within the 1500 mm standard maximum, but at this length you should use a guide to prevent excessive side loading on the rod. The integrated 4M310-08 valve removes the need for a separate remote valve, cutting wiring and tubing complexity in tight retrofits. Remember that the 5/2 valve routes air but does not lock the load; for true position holding, consider a SAIL lock cylinder. To replace this unit, match the 80 mm bore, 250 mm stroke, 1/4" 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 SAIF80X250S-08A FAQ
The 80 mm bore produces 2513 N of push force at 0.5 MPa. The built-in 4M310-08 5/2 valve provides a 25.0 mm2 effective area (Cv 1.40) and can cycle up to 4 times per second.
It has a 4M310 valve mounted directly on a manifold block. Driven by an AC220V terminal coil, it switches itself from one signal. Factory set to retract when energised, the valve can be repositioned to extend on signal.
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