
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X160S-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 160mm 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.
The AirTAC SAIF50X160S-08B is a double-acting ISO 15552 profile cylinder with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89. Driven by a DC24V terminal coil drawing 3.0W, it eliminates the need for remote plumbing. While the bare cylinder rates to 1.0 MPa, the integrated valve limits the practical working pressure to 0.15-0.8 MPa. In this 50mm bore configuration, it generates 982N of push thrust at 0.5 MPa.
By default, the factory setting retracts the piston rod when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve. The manifold connects to the cylinder via an O8xO5 PU tube, meaning the 1/4" valve port differs from the cylinder's own 1/4" port. Equipped with a magnet (-S), it supports position sensing with AirTAC CMSE reed or DMSE electronic sensors.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X160S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 160 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.
| 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.
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×160 | 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).
Ideal for large machine grids where running individual valve tubing back to a central manifold is costly. The built-in 4M210 valve lets one DC24V signal directly control the 50mm bore actuator.
Saves valuable panel space by integrating the 5/2 valve directly on the cylinder. Provides 825N of pull force at 0.5 MPa for secure part holding without external plumbing.
The -S magnet works seamlessly with DMSE electronic sensors for precise end-of-stroke detection, confirming the 160mm stroke completion before triggering the next machine cycle.
Choose this 50mm bore if you need 982N push force at 0.5 MPa; stepping down to a 40mm bore drops the push force to 628N, while upgrading to a 63mm bore yields 1559N. A self-valved SAIF unit is ideal for decentralized stations across large machines, saving panel space and wiring compared to running a separate cylinder and remote valve. The 5/2 valve routes air to hold its last position via pilot pressure, but it is not a mechanical lock—if you drop air pressure, the load will not hold; refer to the SAIL lock series for true load-holding.
When ordering a replacement, verify the 50mm bore, 160mm stroke, 1/4" PT valve port, DC24V terminal coil, and the -S magnet. At 160mm stroke, side-load is minimal, but for any stroke over 300mm, ensure external guide rails are used to prevent rod binding.
Quick checklist
The 50mm bore generates 982N of push thrust and 825N of pull thrust at 0.5 MPa. While the cylinder body rates to 1.0 MPa, the built-in 4M210 valve limits the practical operating pressure range to 0.15-0.8 MPa.
It uses a 4M210-08 5/2 solenoid valve with a Cv of 0.89. The DC24V terminal coil consumes 3.0W and actuates in 0.05s. By factory default, energising the coil retracts the rod, but you can reposition the valve to extend-when-energised. No separate remote valve is needed.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.