Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 175mm 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
- Stroke175 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08A
The AirTAC SAIF50X175-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This built-in valve delivers a Cv of 0.89 and operates via an AC220V terminal connection, drawing 3.5 VA with an IP65 rating. The assembly routes air through PU tubing (O8 x O5) to the PT1/4 cylinder port, meaning the 1/4" valve port and cylinder port are distinct connections. Because the valve limits the system, the practical working pressure is 0.15-0.8 MPa, despite the cylinder body rating of 1.0 MPa.
This 50mm bore generates 982N of push force at 0.5 MPa. By default, the factory setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. Switching itself from a single coil signal, it eliminates remote plumbing and saves panel space, making it highly effective for decentralized machine stations. The carbon steel rod and standard PT tapered threads ensure robust, leak-free daily operation.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 175 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 SAIF50X175-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×175 | 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 SAIF50X175-08A Is Used
Decentralized Assembly Lines
Eliminates remote valve banks by switching the cylinder directly at the station, drastically reducing tubing runs across large factory layouts.
Compact Clamping Fixtures
Provides 982N of push force at 0.5 MPa within a tight footprint, where bringing in a separate valve and manifold would violate envelope limits.
Machine Retrofitting
Ideal for upgrading older machines where adding a new pneumatic valve island is structurally difficult; the integrated 4M210 valve handles switching locally.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08A the Right Choice?
Select this 50mm bore when an application requires around 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 greater thrust. A self-valved SAIF50X175-08A beats a separate cylinder plus remote valve when floor space is tight and running tubing across a large machine is costly. It provides a clean, single-wire decentralized solution. Remember that the 5/2 valve routes air but does not lock the load; for position holding under zero pressure, consider the SAIL lock variant. When ordering replacements, match the 50mm bore, 175mm stroke, 1/4" valve port, AC220V terminal coil, PT thread, and standard rod.
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 SAIF50X175-08A FAQ
The 50mm bore provides 982N push and 825N pull force at 0.5 MPa. The built-in 4M210-08 5/2 solenoid valve has an effective area of 16.0 mm2 (Cv 0.89) and a maximum frequency of 5 cycles per second.
No, the 5/2 valve routes air to switch the cylinder but does not lock the load without live pressure. By default, the factory setting retracts the rod when energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
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