Airtac SAIF Series Standard Cylinder with Valve SAIF80X50-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X50-08B is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 50mm 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
- Stroke50 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X50-08B
The AirTAC SAIF80X50-08B is a double-acting ISO 15552 profile cylinder with a built-in 4M310-08 5/2 solenoid valve, delivering a Cv of 1.40 and a 25.0 mm2 effective orifice. Driven by a DC24V terminal coil drawing 3.0 W, it responds in 0.05 s with IP65 protection. The integrated manifold uses PU tubing (O10 x O6.5) to bridge the valve and cylinder, meaning the valve's 1/4 inch port differs from the cylinder's 3/8 inch port. This assembly operates within a 0.15-0.8 MPa range, as the built-in valve limits the cylinder's 1.0 MPa base rating.
Generating 2513 N of push force at 0.5 MPa (up to 4523 N at 0.9 MPa), it switches itself from one coil signal, eliminating remote plumbing. Factory-set to retract when energised, the valve can be repositioned to extend on signal. This decentralized design saves panel space and tubing across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X50-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X50-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAIF80X50-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×50 | 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 SAIF80X50-08B Is Used
Decentralized Assembly Stations
Ideal for large automated lines where installing individual remote valves is impractical, allowing direct local control via the integrated 4M310 valve.
High-Force Clamping
Delivers 2513 N of push force at 0.5 MPa, suitable for securely holding heavy workpieces during machining or welding operations.
Space-Constrained Retrofitting
Perfect for machine upgrades where panel space is full, using the built-in valve and DC24V terminal connection to minimize external wiring and plumbing.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X50-08B the Right Choice?
Choose this 80 mm bore when a 63 mm cylinder (providing 1559 N push at 0.5 MPa) lacks thrust, but a 100 mm unit is physically too large. The SAIF80X50-08B is ideal for space-tight machines where running separate valve tubing is costly, as the DC24V terminal coil wires directly to the cylinder. For any load-holding requirements, note that the 5/2 valve routes air but does not lock the rod; an AirTAC SAIL lock cylinder is required for braking duties.
When replacing, match the 80 mm bore, 50 mm stroke, 3/8 inch cylinder port, 1/4 inch valve port, DC24V voltage, terminal entry, PT thread, and no-magnet standard. For strokes of 50 mm, side-load guides are less critical, but always ensure axial alignment to prevent seal wear.
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 SAIF80X50-08B FAQ
The 80 mm bore generates 2513 N push and 2268 N pull force at 0.5 MPa. The built-in 4M310-08 5/2 valve provides a 25.0 mm2 effective area (Cv 1.40) with a max frequency of 4 cycles/sec.
No, the 5/2 valve routes air but does not lock the load. The factory setting retracts the rod when the DC24V coil is energised, but it can be repositioned to extend instead. For true load holding, use an AirTAC SAIL cylinder.
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