Airtac SAIF Series Standard Cylinder with Valve SAIF50X800-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X800-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 800mm 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
- Stroke800 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X800-08B
The AirTAC SAIF50X800-08B is a double-acting profile cylinder with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89 and 16.0 mm2 effective area. Driven by a DC24V terminal entry coil consuming 3.0 W, it switches itself from one electrical signal, eliminating remote valve plumbing. The assembly operates at 0.15-0.8 MPa, governed by the integrated valve, while delivering 982N of push force at 0.5 MPa.
By default, the piston rod retracts 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 PU tubing (O8 x O5), and the valve port (1/4) differs from the cylinder port (1/4). This self-contained design is ideal for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X800-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X800-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 800 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 SAIF50X800-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×800 | 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 SAIF50X800-08B Is Used
Decentralized Assembly Lines
Ideal for large machine layouts where running remote valve tubing is costly, this self-valved cylinder places control directly at the station.
Long-Stroke Material Handling
The 800mm stroke and 982N force at 0.5 MPa provide extended reach for pushing or lifting parts along a conveyor.
Space-Tight Machine Retrofits
Eliminating the need for a separate valve manifold saves valuable panel space when upgrading existing pneumatic systems.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X800-08B the Right Choice?
Choose this 50mm bore when 40mm cylinders fall short on thrust (628N push at 0.5 MPa) and 63mm units are excessive (1559N). The 800mm stroke suits long-travel tasks, but because it exceeds 300mm, you must account for side-load and use a guide to prevent rod binding. The DC24V terminal coil offers low power and safe voltage control.
A self-valved SAIF beats a separate cylinder and remote valve by cutting panel space and tubing runs. It does not hold loads without live pressure; the 5/2 valve routes air but is not a lock, and the air cushion only decelerates near stroke end. For load-holding, select SAIL or BSAI. Replacement requires matching the 50mm bore, 800mm stroke, 1/4 valve port, DC24V voltage, terminal entry, PT thread, and no 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 SAIF50X800-08B FAQ
The 50mm bore generates 982N push and 825N pull force at 0.5 MPa. The built-in 4M210-08 valve has an orifice of 16.0 mm2 and a Cv of 0.89, with a max frequency of 5 cycles per second.
The DC24V terminal coil consumes 3.0 W and activates in 0.05s. By default, energising the coil retracts the rod, but you can reposition the valve to extend-when-energised. It operates at 0.15-0.8 MPa, meaning no separate remote valve is needed.
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