Airtac SAIF Series Standard Cylinder with Valve SAIF80X500-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X500-08B is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 500mm 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
- Stroke500 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X500-08B
The AirTAC SAIF80X500-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. Driven by a DC24V terminal coil drawing 3.0 W, it delivers 2513N of push force at 0.5 MPa. The built-in valve provides a Cv of 1.40 and operates at 4 cycles per second. Because the manifold block mounts directly using O10 x O6.5 PU tubing, you save panel space and eliminate remote plumbing.
While the bare cylinder body rates to 1.0 MPa, the practical operating range for this valved assembly is 0.15-0.8 MPa. The factory setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend on signal. The cylinder port is 3/8 inch, while the valve port is 1/4 inch. This self-switching design is ideal for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X500-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X500-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIF80X500-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×500 | 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 SAIF80X500-08B Is Used
Decentralized Automation
Eliminates the need for long tubing runs back to a central valve island, driving a 500mm stroke directly from a local DC24V signal.
Heavy Work Handling
Provides 2513N of push force at 0.5 MPa for clamping or lifting heavy workpieces without occupying panel space for a separate 4M310 valve.
Machine Retrofitting
Ideal for upgrading existing ISO 15552 fixtures where adding external pneumatic plumbing is costly or physically constrained.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X500-08B the Right Choice?
Choose this 80mm bore when you need substantial thrust, such as the 2513N push force at 0.5 MPa, but want to avoid the tubing runs of a remote valve bank. If your application requires less force, stepping down to a 63mm bore yields 1559N push at 0.5 MPa. This SAIF unit uses a DC24V terminal connection with PT threads, meaning you only need to run a single electrical signal to the machine station.
With a 500mm stroke, ensure adequate guiding to prevent excessive side loading on the piston rod. Remember that the integrated 5/2 valve routes air but does not lock the load; if you need true load holding without live pressure, consider the SAIL lock variant. To replace this unit, match the 80mm bore, 500mm stroke, 1/4 inch valve port, DC24V voltage, terminal entry, PT threads, 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 SAIF80X500-08B FAQ
At 0.5 MPa, this 80mm bore cylinder generates 2513N of push force and 2268N of pull force. The integrated 4M310-08 5/2 valve has an effective area of 25.0 mm2 (Cv 1.40).
The 5/2 valve is internally piloted and holds its last position by pilot pressure, not by a spring. By factory default, the coil retracts the rod when energised, but you can reposition the valve to extend on signal. It operates on DC24V.
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