Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 80mm stroke and a built-in 4M210-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ50 mm
- Stroke80 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08B
The AirTAC SAIF50X80S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This built-in valve provides a Cv of 0.89 and operates on DC24V power via a terminal electrical entry, consuming just 3.0 W. Equipped with a magnet for CMSE reed and DMSE electronic sensors, it delivers a robust push force of 982N at 0.5 MPa. The carbon steel piston rod and PT tapered threads ensure durable, leak-free connections.
Because the cylinder body rates to 1.0 MPa but the internal pilot valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa. By default, the piston rod retracts when the coil is energised, though you can reconfigure it to extend-when-energised by simply repositioning the valve. The manifold uses O8xO5 PU tubing, and the valve port (1/4") differs from the cylinder port (1/4"), ensuring optimal flow without needing a separate remote valve.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 80 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-08 (5/2) |
|---|---|
| Valve flow | 16.0 mm² (Cv 0.89) |
| Max frequency | 5 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 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 SAIF50X80S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×80 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAIF50X80S-08B Is Used
Decentralized Assembly Stations
Eliminates the need for long air lines back to a central manifold, driving local clamping directly from a single DC24V signal.
Space-Constrained Machinery
The integrated 4M210 valve manifold saves valuable panel and footprint space in compact automated equipment.
Retrofit & Upgrade Projects
Ideal for upgrading older machines where running new valve tubing is costly or physically difficult.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08B the Right Choice?
Choose this 50mm bore if you need higher force than the 40mm bore (628N push at 0.5 MPa) but less bulk than the 63mm bore (1559N). The self-valved SAIF design eliminates separate valve plumbing and panel space, making it ideal for decentralized stations across large machines. A single DC24V terminal signal drives the cylinder at up to 5 cycles per second. For load-holding applications, note that the 5/2 valve routes air but does not lock the load; consider the SAIL lock series if mechanical holding is required. To replace this unit, match the 50mm bore, 80mm stroke, 1/4" valve port, DC24V terminal coil, PT threads, and the -S 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 SAIF50X80S-08B FAQ
The 50mm bore generates a push force of 982N and a pull force of 825N at 0.5 MPa. The built-in 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89).
It uses a 5/2 solenoid valve that holds position by internal pilot pressure, not a spring. This specific model uses a DC24V terminal coil (3.0 W, IP65). Factory setting retracts the rod when energised, but you can reposition the valve to extend-when-energised.
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