Airtac SAIF Series Standard Cylinder with Valve SAIF50X200S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X200S-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 200mm 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
- Stroke200 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X200S-08B
The AirTAC SAIF50X200S-08B is a double-acting ISO 15552 profile cylinder equipped with a built-in 4M210-08 5/2 solenoid valve, offering a Cv of 0.89 and a 16.0 mm2 orifice. Driven by a DC24V terminal coil consuming 3.0 W, it features a standard carbon steel piston rod and a -S magnet for precise position sensing with CMSE reed and DMSE electronic switches. Because the cylinder body 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 factory setting retracts the rod when the coil is energised, and you can reconfigure it to extend-when-energised simply by repositioning the valve. The manifold connects the valve to the cylinder via an O8 x O5 PU tube, meaning the 1/4 inch valve port and the 1/4 inch cylinder port are distinct. Generating 982 N of push force at 0.5 MPa, this self-switching unit eliminates remote plumbing and is ideal for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X200S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X200S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 200 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 SAIF50X200S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×200 | 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 SAIF50X200S-08B Is Used
Decentralized Automation Cells
Ideal for large machines with multiple stations, eliminating long tubing runs by mounting the valve directly on the cylinder for localized control.
Compact Machining Clamps
Provides 982 N of clamping force at 0.5 MPa in tight spaces where external valve manifolds would interfere with tooling paths.
Retrofitted Sorting Diverters
Simplifies upgrading existing conveyor lines by requiring only a single DC24V electrical signal to actuate the 200mm stroke diverter.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X200S-08B the Right Choice?
Choose this 50mm bore when you need 982 N push force at 0.5 MPa; stepping down to a 40mm bore drops the push force to 628 N, while upgrading to a 63mm bore yields 1559 N. A self-valved SAIF beats a separate cylinder and remote valve when panel space is tight and running tubing across a machine is costly, as it switches itself from one coil signal. For this DC24V terminal entry model, ensure your control system matches the 3.0 W power draw and IP65 protection. Since the 200mm stroke exceeds 300mm, consider adding external guide rails to prevent excessive side-loading and premature seal wear.
Remember that the built-in 5/2 valve routes air but does not hold the load without live pressure, so it is not a lock or brake. For applications requiring true load-holding, consider the SAIL lock or BSAI clamp-lock series instead. To replace this unit, match the 50mm bore, 200mm stroke, 08 valve port, DC24V voltage, terminal entry, PT thread, and -S 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 SAIF50X200S-08B FAQ
The 50mm bore generates 982 N push force and 825 N pull force at 0.5 MPa. The built-in 4M210-08 5/2 valve has an effective area of 16.0 mm2 (Cv 0.89) and a maximum frequency of 5 cycles per second.
No, it switches itself from one DC24V coil signal, saving panel space. By default, the factory setting retracts the rod when the coil is energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
Related AirTAC Cylinders & Valves
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