Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08B 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"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08B
The AirTAC SAIF50X300S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Equipped with a -S magnet for CMSE reed and DMSE electronic sensors, it delivers 982N push force at 0.5MPa. The built-in valve offers a 16.0mm2 orifice (Cv 0.89) and switches at 5 cycles/sec. Because the cylinder body rates to 1.0MPa but the valve operates 0.15-0.8MPa, the practical working range for this assembled unit is 0.15-0.8MPa.
This specific SKU uses a DC24V coil (3.0W, IP65, 0.05s response) with a terminal electrical entry. The manifold links the valve to the cylinder via PU tubing (O8xO5). By default, the factory setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. It switches itself from one coil signal, eliminating remote valves and reducing panel space for decentralized installations.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08B |
|---|---|
| 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 | 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 SAIF50X300S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×300 | 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 SAIF50X300S-08B Is Used
Decentralized Stations
Ideal for large machines with decentralized stations, eliminating the need to run long valve tubing back to a central panel.
Space-Tight Machines
The built-in 4M210 valve saves valuable panel and footprint space in compact assemblies where external plumbing is restricted.
Retrofit Automation
Perfect for retrofits where running new pneumatic lines is costly, needing only a single DC24V electrical signal to operate.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X300S-08B the Right Choice?
Choose this 50mm bore when a 40mm bore yields insufficient force (628N push at 0.5MPa) or a 63mm bore is oversized (1559N push). The self-valved SAIF design beats a separate cylinder and remote valve in space-tight machines, cutting tubing and wiring complexity. This 300mm stroke requires attention to side-load; use a guide to prevent rod binding. To replace, match the 50mm bore, 300mm stroke, 1/4" valve port, DC24V terminal coil, PT thread, and -S magnet. Remember, the 5/2 valve routes air but does not lock the load—use SAIL for holding.
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-08B FAQ
The 50mm bore provides 982N push and 825N pull force at 0.5MPa. The built-in 4M210-08 valve has a 16.0mm2 orifice with a Cv of 0.89.
No, it switches itself from one DC24V coil signal. By default, the rod retracts when energised, but you can reposition the valve to extend-when-energised.
Related AirTAC Cylinders & Valves
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