Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08A
The AirTAC SAIF50X800S-08A is a double-acting ISO 15552 profile cylinder paired with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89. It features a 50mm bore, an 800mm stroke, and a carbon steel piston rod. Driven by an AC220V terminal connection coil drawing 3.5 VA, it activates in 0.05s with an IP65 rating. Because the cylinder body rates to 1.0 MPa but the integrated valve operates at 0.15-0.8 MPa, the practical working pressure for this assembled unit is 0.15-0.8 MPa.
This decentralized design eliminates the need for a separate remote valve, cutting down on plumbing and panel space. The manifold links the valve to the cylinder via PU tubing (O8xO5), and the cylinder port is PT1/4. 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 -S magnet option supports CMSE reed and DMSE electronic sensors for precise positioning tracking.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08A |
|---|---|
| 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 | 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 SAIF50X800S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×800 | 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 SAIF50X800S-08A Is Used
Decentralized Automation Stations
Perfect for large machines where installing remote valve banks is impractical. The built-in 4M210-08 valve lets this cylinder control itself from a single AC220V signal, minimizing tubing runs.
Extended Stroke Material Handling
The 800mm stroke and 1767N push force at 0.9 MPa suit long-travel sorting or diverting tasks on conveyor lines. The integrated valve ensures fast 0.05s response times.
Space-Constrained Machine Retrofits
Ideal for upgrading older equipment where panel space is tight. The manifold block and short PU tubing eliminate the need to route long pneumatic lines back to a central control cabinet.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X800S-08A the Right Choice?
Choose this 50mm bore when you need 982N push force at 0.5 MPa or 1767N at 0.9 MPa. If your application requires less force, the 40mm bore offers 628N at 0.5 MPa; for heavier loads, the 63mm bore provides 1559N. The self-valved SAIF configuration is ideal for decentralized stations across large machines where running separate valve tubing is costly. It switches itself from one coil signal, saving wiring effort. Because the stroke is 800mm, you must account for side-load risks and use a guide to prevent rod binding. Remember, the 5/2 valve routes air but does not lock the load; for position holding, consider the SAIL lock cylinder. To replace this unit, match the 50mm bore, 800mm stroke, 4M210-08 valve, AC220V terminal coil, PT thread, and -S 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 SAIF50X800S-08A FAQ
The 50mm bore generates 982N push force at 0.5 MPa and 1767N at 0.9 MPa. The built-in 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89) with a maximum frequency of 5 cycles per second.
It uses an internal-piloted 5/2 solenoid valve that holds its position pneumatically, not with a spring. The factory setting retracts the rod when the AC220V coil is energised, but you can reposition the valve to make it extend-when-energised. This eliminates the need for a separate remote valve.
Related AirTAC Cylinders & Valves
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