Airtac SAIF Series Standard Cylinder with Valve SAIF50X450-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X450-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 450mm 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
- Stroke450 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X450-08A
The AirTAC SAIF50X450-08A is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. It delivers a 982N push force at 0.5 MPa and utilizes a Cv 0.89 flow rate. Equipped with an AC220V terminal entry coil consuming 3.5 VA, it activates in 0.05 s with an IP65 rating. The integrated manifold uses an O8xO5 PU tube, meaning the 1/4" valve port differs from the cylinder's 1/4" working port.
Because the cylinder rates to 1.0 MPa but the integrated valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa. By default, the piston rod retracts when the coil is energised, though you can reconfigure it to extend-when-energised by repositioning the valve. This decentralized design switches itself from one coil signal, eliminating remote valves and reducing panel space.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X450-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X450-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 450 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 SAIF50X450-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×450 | 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 SAIF50X450-08A Is Used
Decentralized Automation Stations
Ideal for large machines where running separate valve tubing is costly. The integrated 4M210 valve lets this 50mm bore cylinder switch itself from a single AC220V signal.
Space-Constrained Machinery
Eliminates the panel space needed for remote valves. The built-in manifold and short PU tubing keep the 450mm stroke actuator compact and self-contained.
Retrofitting Existing Lines
Perfect for upgrading older machines. The ISO 15552 profile ensures dimensional interchangeability while the terminal entry coil simplifies wiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X450-08A the Right Choice?
Choose this self-valved SAIF50X450-08A when a decentralized station needs a 982N push at 0.5 MPa without the plumbing of a separate valve. If your application requires less force, the 40mm bore offers 628N; for higher loads, the 63mm bore provides 1559N. The 450mm stroke exceeds 300mm, so ensure you use a guide to prevent rod side-loading and premature seal wear.
Unlike a standard cylinder, this unit holds its last position via internal pilot pressure, not a spring. It does not lock or hold the load without live air pressure; for true mechanical holding, consider the SAIL lock series. Replacement requires matching the 50mm bore, 450mm stroke, 1/4" valve port, AC220V terminal coil, PT threads, 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 SAIF50X450-08A FAQ
The 50mm bore provides a push force of 982N and pull force of 825N at 0.5 MPa. The built-in 4M210-08 valve has a 16.0 mm2 orifice with a Cv of 0.89.
By factory default, the rod retracts when the AC220V coil is energised, but you can reposition the valve to extend-when-energised. The 5/2 valve holds its last position via internal pilot pressure, but it does not lock the load without live air pressure.
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