Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 300mm 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
- Stroke300 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08A
The AirTAC SAIF50X300S-08A is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. Driven by an AC220V terminal coil drawing 3.5 VA, the integrated valve delivers a 16.0 mm2 flow (Cv 0.89) and switches at up to 5 cycles per second. 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. It includes a magnet for CMSE reed and DMSE electronic sensors.
Eliminating the need for a remote valve island, this self-switching unit routes air directly via an O8 x O5 PU tube manifold block, saving panel space and plumbing. From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised. At 0.5 MPa it generates 982 N of push force and 825 N of pull force, while the PT1/4 cylinder port and carbon steel rod handle rigorous decentralized station duties.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 300 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 | 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 (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 SAIF50X300S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×300 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAIF50X300S-08A Is Used
Decentralized Machine Stations
Ideal for large assemblies where running individual air lines back to a main panel is costly. The built-in valve lets this 50 mm cylinder operate independently from a single AC220V signal.
Material Handling Diverters
Provides 982 N of push force at 0.5 MPa for redirecting packages. The self-contained 5/2 valve responds in under 0.05 seconds, keeping throughput high on tight conveyor layouts.
Compact Assembly Tooling
Saves valuable envelope space by eliminating external valve plumbing. The 300 mm stroke drives tooling heads smoothly with adjustable air cushions at both ends.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08A the Right Choice?
Choose this 50 mm bore when you need 982 N push force at 0.5 MPa; stepping down to a 40 mm bore drops thrust to 628 N, while a 63 mm bore raises it to 1559 N. The integrated 4M210-08 valve means you only need to run a single AC220V electrical signal to the terminal connection, drastically reducing tubing complexity compared to a separate cylinder and remote valve setup. Remember that the 5/2 valve routes air but does not lock the load—if you need true position holding under pressure loss, consider the SAIL lock variant.
With a 300 mm stroke, this cylinder requires attention to side loading; ensure adequate guide rails to prevent rod bending and premature seal wear. To replace this unit, match the 50 mm bore, 300 mm stroke, 1/4" valve port, PT1/4 cylinder threads, AC220V voltage, terminal entry, and the -S magnet option.
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 SAIF50X300S-08A FAQ
At 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. The integrated 4M210-08 5/2 valve provides an effective flow area of 16.0 mm2 (Cv 0.89).
By factory default, the AC220V coil energizes to retract the piston rod. This behavior can be reconfigured to extend-when-energised simply by repositioning the built-in valve on the manifold block.
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