Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 400mm 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
- Stroke400 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-08A
The AirTAC SAIF50X400-08A is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. This integrated assembly delivers a Cv of 0.89 and operates on an AC220V terminal coil drawing 3.5 VA. While the bare cylinder rates to 1.0 MPa, the practical working range for this valved unit is 0.15-0.8 MPa. With a 50mm bore, it generates 982N of push force at 0.5 MPa.
By driving the cylinder directly from one coil signal, you eliminate remote valves and reduce panel space for decentralized machine stations. The manifold connects to the cylinder via PU tubing (O8xO5), and the factory setting retracts the rod when the coil is energised, which you can reconfigure to extend-when-energised by repositioning the valve.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 400 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 SAIF50X400-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×400 | 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 SAIF50X400-08A Is Used
Decentralized Stations
Eliminates remote valve plumbing across large machines by switching the 50mm bore directly from the AC220V coil signal.
Space-Tight Machinery
The integrated 4M210-08 valve manifold saves valuable panel space while delivering 982N push force for compact assemblies.
Retrofit Installations
Ideal for upgrading existing setups where running new pneumatic tubing to a separate valve is costly or impractical.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-08A the Right Choice?
Choose this 50mm bore when you need 982N push force at 0.5 MPa; step down to a 40mm bore (628N push) for lighter loads, or up to a 63mm bore (1559N push) if you need more thrust. The integrated 4M210-08 valve eliminates the need to run separate valve tubing, making it highly efficient for space-tight machines. The AC220V terminal entry provides IP65 protection with a 0.05s response time. For replacement, match the 50mm bore, 400mm stroke, PT1/4 cylinder port, 1/4 valve port, AC220V voltage, terminal entry, and PT thread. Since the 400mm stroke exceeds 300mm, ensure adequate guide support to prevent excessive side loading on the rod. Note that the 5/2 valve routes air and is not a lock; for load-holding, consider the SAIL series.
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 SAIF50X400-08A FAQ
The 50mm bore generates 982N push and 825N pull force at 0.5 MPa. The built-in 4M210-08 5/2 valve provides an effective area of 16.0 mm2 (Cv 0.89) with a maximum frequency of 5 cycles per second.
No, the integrated 5/2 valve switches the cylinder directly from one AC220V coil signal. The factory setting retracts the rod when energised, but you can reconfigure it to extend-when-energised by repositioning the valve.
Related AirTAC Cylinders & Valves
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