Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08A is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 350mm 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
- Stroke350 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08A
The AirTAC SAIF80X350S-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. This built-in manifold block uses a PU tube (O10 x O6.5) to connect the valve to the cylinder, meaning the 1/4" valve port differs from the cylinder's 3/8" port. Driven by an AC220V terminal entry coil consuming 3.5 VA, it delivers 2513N of push force at 0.5 MPa. The -S magnet enables position sensing with CMSE reed or DMSE electronic switches.
Because the 4M310 valve operates at 0.15-0.8 MPa, the practical working range for this assembled SAIF unit is 0.15-0.8 MPa rather than the bare cylinder's 1.0 MPa limit. By default, the piston rod retracts when the coil is energised, but you can reconfigure the valve to extend-when-energised. This self-switching design eliminates remote plumbing, saving panel space for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIF80X350S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×350 | 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 SAIF80X350S-08A Is Used
Decentralized Machine Stations
Ideal for large assembly lines where running individual valve tubing back to a central manifold is costly and complex.
Mid-Force Clamping
Provides 2513N of push force at 0.5 MPa for securely holding heavier workpieces during machining or welding.
Space-Constrained Retrofitting
The integrated valve manifold saves valuable panel and floor space when upgrading existing equipment.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08A the Right Choice?
Choose this 80mm bore when a 63mm bore (offering 1559N push at 0.5 MPa) is insufficient, but a 100mm bore (3927N at 0.5 MPa) would be excessive overkill. The self-valved SAIF format beats a separate cylinder plus remote valve when you need to minimize tubing and wiring across decentralized machine stations. It requires only one AC220V coil signal to drive the motion. Remember that the 5/2 valve routes air but does not lock the load; for true position holding under pressure loss, consider the SAIL lock or BSAI clamp-lock series. When replacing, match the 80mm bore, 350mm stroke, 1/4" valve port, AC220V voltage, terminal entry, PT thread, and -S magnet. For this 350mm stroke, ensure adequate guiding to prevent rod side-loading.
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 SAIF80X350S-08A FAQ
The 80mm bore generates 2513N push and 2268N pull force at 0.5 MPa. The built-in 4M310-08 valve has an effective area of 25.0 mm2 (Cv 1.40) and a maximum frequency of 4 cycles per second.
Yes. The factory setting retracts the rod when the AC220V coil is energised, but you can reposition the 5/2 valve on the manifold to extend-when-energised. This allows the cylinder to switch itself from one coil signal without needing a separate remote valve.
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