Airtac SAIF Series Standard Cylinder with Valve SAIF50X300-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X300-08A 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 SAIF50X300-08A
The AirTAC SAIF50X300-08A is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. This integrated manifold design eliminates the need for a remote valve island, drastically reducing plumbing and panel space for decentralized machine stations. Driven by an AC220V terminal coil drawing 3.5 VA, it responds in 0.05 s and is protected to IP65. The 4M210-08 valve provides a 16.0 mm2 effective area (Cv 0.89) and switches up to 5 cycles per second.
Because the 5/2 valve operates at 0.15-0.8 MPa, this defines the practical working pressure for the assembled unit, even though the bare cylinder rates to 1.0 MPa. The 50 mm bore generates 982 N of push force at 0.5 MPa. A carbon steel piston rod extends 300 mm, and the manifold connects to the cylinder via O8 x O5 PU tubing. Factory-set to retract when energised, the valve can be repositioned to extend on signal if your sequence requires it.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X300-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X300-08A |
|---|---|
| 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 SAIF50X300-08A
| 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 SAIF50X300-08A Is Used
Decentralized Stations
Ideal for large automated lines where routing individual air lines to a central valve bank is impractical, letting the cylinder switch itself locally.
Space-Tight Machinery
Fits into compact assemblies by eliminating the physical footprint of external valves and minimizing the PU tubing required for operation.
Retrofit & Upgrade
Perfect for upgrading existing pneumatic setups where adding a new remote valve manifold would require expensive panel modifications.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X300-08A 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 output to 628 N, while a 63 mm bore raises it to 1559 N. The self-valved SAIF architecture is optimal for space-tight machines or retrofits where running tubing back to a central panel is costly. The 4M210-08 valve uses a 1/4" port, while the cylinder port is also 1/4". This specific SKU uses an AC220V terminal connection with PT threads and lacks a piston magnet.
With a 300 mm stroke, you must account for potential side-loading; ensure adequate guide rails to prevent rod binding and premature seal wear. Remember that the 5/2 valve routes air but does not lock the load mechanically—use an AirTAC SAIL lock cylinder if you need fail-safe holding. To replace this unit, match the 50 mm bore, 300 mm stroke, 1/4" valve port, AC220V voltage, terminal entry, and PT thread.
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 SAIF50X300-08A FAQ
The 50 mm bore generates 982 N of push force and 825 N of pull force at 0.5 MPa. The integrated 4M210-08 valve has a 16.0 mm2 orifice (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
No, the SAIF50X300-08A has a built-in 4M210 5/2 valve driven by an AC220V terminal coil. By default, the piston retracts when the coil is energised, but you can reposition the valve to extend on signal. It holds position pneumatically via pilot pressure, not mechanically.
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