Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-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 SAIF50X450S-08A
The AirTAC SAIF50X450S-08A 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, this 50mm bore unit delivers 982N push force at 0.5MPa. The built-in valve offers a 16.0mm2 effective area (Cv 0.89) and is driven by an AC220V terminal coil consuming 3.5 VA. Because the valve manifold operates at 0.15-0.8MPa, the practical working range for the assembled SAIF is 0.15-0.8MPa, even though the bare cylinder rates to 1.0MPa.
By routing air directly through a PU tube (O8xO5) to the cylinder, this unit eliminates remote plumbing and saves panel space for decentralized installations. The factory setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. Driven by a 5/2 pilot valve, it holds its last position pneumatically without live pressure, though it is not a mechanical lock.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-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 SAIF50X450S-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 SAIF50X450S-08A Is Used
Decentralized Machine Stations
Ideal for large machines with multiple stations, eliminating long air tubes from a central panel by switching locally via the AC220V terminal coil.
Mid-Force Positioning
Provides 982N push force at 0.5MPa for clamping or lifting workpieces, utilizing the 4M210-08 valve with Cv 0.89 for responsive actuation.
Space-Constrained Retrofits
Perfect for upgrades where running new valve tubing is costly, offering a self-contained actuator with a 450mm stroke and -S magnet for DMSE sensors.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08A the Right Choice?
Choose this self-valved SAIF50X450S-08A when a decentralized station needs 982N push force at 0.5MPa without the tubing of a remote valve. If your application requires less force, the 40mm bore neighbour provides 628N push at 0.5MPa; for heavier loads, the 63mm bore offers 1559N. The integrated 4M210-08 valve uses a 1/4" valve port, while the cylinder port is PT1/4, and the AC220V terminal coil responds in 0.05s with IP65 protection.
With a 450mm stroke, ensure adequate guiding to prevent rod side-loading and premature seal wear. For exact replacement, match the 50mm bore, 450mm stroke, 1/4" valve port, AC220V voltage, terminal entry, PT thread, and -S magnet. If true load-holding is required during pressure loss, consider the SAIL lock or BSAI clamp-lock cylinder instead of this 5/2 routed unit.
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 SAIF50X450S-08A FAQ
The 50mm bore provides 982N push and 825N pull force at 0.5MPa. The integrated 4M210-08 5/2 valve has a 16.0mm2 effective area (Cv 0.89) and a maximum frequency of 5 cycles per second.
No, the 5/2 valve routes air but does not mechanically lock the load. The factory setting retracts the rod when the AC220V coil energises, but it can be repositioned to extend-when-energised. For true load-holding, use a SAIL or BSAI cylinder.
Related AirTAC Cylinders & Valves
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