Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08A
The AirTAC SAIF80X50S-08A is a double-acting ISO 15552 extruded aluminum profile cylinder equipped with a built-in 4M310-08 5/2 solenoid valve. This integrated manifold block uses a PU tube (O10 x O6.5) to link the valve to the cylinder, eliminating the need for remote pneumatic plumbing. Driven by an AC220V terminal connection coil drawing 3.5 VA, it activates in 0.05 s or less. The cylinder body features a carbon steel piston rod and a -S magnet for CMSE reed and DMSE electronic sensors.
Although the cylinder itself is rated for 1.0 MPa, the internal pilot pressure of the 4M310 valve limits the practical operating range of this assembled unit to 0.15-0.8 MPa. The valve provides a 25.0 mm2 effective area (Cv 1.40) and cycles up to 4 times per second. By default, the factory setting retracts the rod when the coil is energised, but you can reposition the valve to extend-when-energised if your sequence requires it.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08A |
|---|---|
| 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 | 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 SAIF80X50S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×50 | 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 SAIF80X50S-08A Is Used
Decentralized Machine Stations
Eliminates the need for a central valve manifold by integrating the 4M310 valve directly on the cylinder, saving panel space and simplifying machine wiring across large factory layouts.
High-Force Clamping
Delivers 2513N of push force at 0.5 MPa, making it suitable for securely holding heavy workpieces during machining or assembly operations.
Space-Constrained Retrofits
Ideal for upgrading existing machinery where routing new pneumatic tubing from a remote valve is impractical, offering a self-contained actuator driven by a single AC220V signal.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08A the Right Choice?
Choose this 80mm bore when you need substantial push force, generating 2513N at 0.5 MPa or 3518N at 0.7 MPa. If your application requires less force and faster cycling, stepping down to a 63mm bore yields 1559N at 0.5 MPa. Conversely, moving up to a 100mm bore provides 3927N at 0.5 MPa. The self-valved SAIF design excels in decentralized installations across large machines where running separate valve tubing is costly and consumes panel space. A single AC220V electrical signal controls the entire actuator.
Ensure you specify the exact bore (80mm), stroke (50mm), valve port (08 / 1/4"), cylinder port (3/8"), coil voltage (AC220V), terminal entry, PT tapered threads, and the -S magnet when ordering a replacement. Note that the 5/2 valve routes air to hold the cylinder in position via live pressure; it is not a mechanical lock. If true load-holding is required under pressure loss, consider the SAIL lock variant. Because the stroke is 50mm, side-load stress is minimal, but always verify guide alignment.
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-08A FAQ
The 80mm bore generates a push force of 2513N at 0.5 MPa and 3518N at 0.7 MPa. The built-in 4M310-08 valve has an effective area of 25.0 mm2 (Cv 1.40) and operates at a maximum frequency of 4 cycles per second.
It uses a 5/2 solenoid valve driven by an AC220V terminal coil. By default, the rod retracts when energised, but this can be reconfigured to extend-when-energised by repositioning the valve. The valve routes air to hold position via live pressure but is not a mechanical lock; for true load-holding under pressure loss, consider the SAIL series.
Request a Quote for Airtac SAIF Series Standard Cylinder with Valve SAIF80X50S-08A
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.