Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08B 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"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08B
The AirTAC SAIF50X175-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Driven by a DC24V terminal coil drawing 3.0 W, the valve provides a 16.0 mm2 flow (Cv 0.89) and responds in 0.05 s. The assembly operates at 0.15-0.8 MPa, as the built-in valve dictates the practical pressure ceiling rather than the 1.0 MPa cylinder rating. At 0.5 MPa it generates 982 N of push thrust and 825 N of pull force.
By switching itself from a single electrical signal, this unit eliminates remote plumbing and saves panel space, making it ideal for decentralized machine stations. The manifold connects to the cylinder via O8 x O5 PU tubing. From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised. The carbon steel rod and PT1/4 cylinder port ensure robust, standardised pneumatic connections.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08B |
|---|---|
| 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 | DC24V · DC 3.0 W |
| 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 SAIF50X175-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×175 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| B | Coil voltage DC24V. |
| 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 SAIF50X175-08B Is Used
Decentralized Automation Stations
Perfect for large machines with multiple stations, eliminating long tubing runs by mounting the valve directly on the cylinder for local DC24V control.
Compact Clamping Fixtures
Provides 982 N of clamping force at 0.5 MPa in tight spaces where fitting a separate valve and manifold block is physically impossible.
Retrofit Machine Upgrades
Ideal for upgrading older pneumatic lines, replacing a standard cylinder with a self-switching unit to simplify wiring and reduce air leaks.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X175-08B the Right Choice?
Choose this 50 mm bore when you need roughly 982 N push force at 0.5 MPa; stepping down to a 40 mm bore drops output to 628 N, while a 63 mm bore raises it to 1559 N. The integrated 4M210-08 valve removes the need for a separate remote valve, drastically cutting tubing and wiring complexity in space-tight machines. If your application requires holding a load without live air pressure, note that the 5/2 valve routes air but does not lock the piston—consider an AirTAC SAIL lock cylinder instead. To replace this unit, match the 50 mm bore, 175 mm stroke, 1/4" valve port, DC24V voltage, terminal entry, PT thread, and no-magnet configuration.
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 SAIF50X175-08B FAQ
At 0.5 MPa, the 50 mm bore generates 982 N push and 825 N pull force. The built-in 4M210-08 5/2 valve has an effective area of 16.0 mm2 (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
No, the 4M210-08 valve is built into the manifold block. It operates on DC24V with a 3.0 W terminal coil. The factory default retracts the rod when energised, but you can reposition the valve to extend-when-energised.
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