Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-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 SAIF80X50S-08B
The AirTAC SAIF80X50S-08B is a double-acting profile cylinder dimensionally interchangeable per ISO 15552, featuring a built-in 4M310-08 5/2 solenoid valve. This integrated valve provides an effective flow of 25.0 mm2 (Cv 1.40) and mounts directly via a manifold block using O10 x O6.5 PU tubing. Driven by a DC24V terminal coil consuming 3.0 W, it achieves IP65 protection and a 0.05 s activation time. The -S magnet supports CMSE reed and DMSE electronic sensors for precise position feedback.
Because the built-in valve operates at 0.15-0.8 MPa, this sets the practical working range for the assembled SAIF unit, even though the bare cylinder rates to 1.0 MPa. Delivering 2513 N of push force at 0.5 MPa, it eliminates remote plumbing. Factory-set to retract when energised, the valve can be repositioned to extend-when-energised, offering flexible decentralized control from a single coil signal.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-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 SAIF80X50S-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 SAIF80X50S-08B Is Used
Decentralized Assembly Lines
Eliminates remote valve banks by self-switching heavy 80mm actuators directly at the station, slashing tubing complexity.
High-Force Clamping Jigs
Provides 2513 N push force at 0.5 MPa for secure part holding in compact machining cells where panel space is scarce.
Retrofit Automation
Upgrades existing ISO 15552 machines by adding localized DC24V valve control without re-plumbing main air lines.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08B the Right Choice?
Choose this 80mm bore when 50mm stroke delivers sufficient motion but high thrust is required; stepping down to a 63mm bore yields 1559 N push at 0.5 MPa, while this 80mm unit provides 2513 N. The self-valved SAIF80X50S-08B excels over a separate cylinder and remote valve by saving panel space and cutting tubing runs, making it ideal for decentralized stations. Select this DC24V terminal configuration for standard low-voltage control circuits with PT-threaded ports.
For exact replacements, match the 80mm bore, 50mm stroke, 4M310-08 valve with PT1/4 cylinder ports, DC24V voltage, terminal entry, and the -S magnet. Note that the 5/2 valve routes air but does not hold the load without live pressure; for locking needs, consider the SAIL series. Strokes under 300mm require no special guide provisions.
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 SAIF80X50S-08B FAQ
It delivers 2513 N push and 2268 N pull force at 0.5 MPa. The built-in 4M310-08 valve has a 25.0 mm2 orifice (Cv 1.40) and operates at 0.15-0.8 MPa.
No, the integrated 4M310 5/2 valve switches the cylinder from a single DC24V terminal coil signal. It is factory-set to retract when energised but can be repositioned to extend-when-energised.
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