Airtac SAIF Series Standard Cylinder with Valve SAIF50X900S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X900S-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 900mm 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
- Stroke900 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X900S-08A
The AirTAC SAIF50X900S-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Driven by an AC220V terminal coil drawing 3.5 VA, it delivers a Cv of 0.89 and generates 982N of push force at 0.5 MPa. The carbon steel piston rod includes a magnet for CMSE reed and DMSE electronic sensors. Because the manifold relies on an O8 x O5 PU tube to bridge the valve and cylinder, you eliminate remote plumbing entirely.
While the bare cylinder body is rated for 1.0 MPa, the practical operating range for this self-valved assembly is 0.15-0.8 MPa. Factory configured to retract the rod when the coil is energised, the valve can be repositioned on the manifold to extend-when-energised if your sequence requires it. This decentralized design switches itself from one coil signal, saving panel space across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X900S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X900S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 900 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 SAIF50X900S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×900 | 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 SAIF50X900S-08A Is Used
Decentralized Automation
Ideal for large machines with multiple stations, using the built-in valve to eliminate long tubing runs back to a central panel.
Extended Stroke Diverting
The 900mm stroke provides ample reach for pushing or diverting products across wider conveyor belts without needing external valves.
Space-Constrained Retrofits
Drop-in solution for upgrading existing ISO 15552 fixtures where adding separate solenoid valves and wiring is physically impossible.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X900S-08A the Right Choice?
Choose this 50mm bore when you need 982N push thrust at 0.5 MPa; stepping down to a 40mm bore drops thrust to 628N, while a 63mm bore raises it to 1559N. The 900mm stroke falls within the 1200mm standard limit, but at this length you must use a guide to prevent rod side-load damage. The AC220V terminal connection suits standard plant power, and the PT1/4 cylinder port differs from the 1/4 valve port. Remember that the built-in 5/2 valve routes air but does not lock the load—select a SAIL lock cylinder if you need position holding without live pressure. For exact replacements, verify the 50mm bore, 900mm stroke, 4M210-08 valve, AC220V 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 SAIF50X900S-08A FAQ
At 0.5 MPa, this 50mm bore cylinder provides 982N of push force and 825N of pull force. The integrated 4M210-08 5/2 valve has an effective flow area of 16.0 mm2 (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
Yes, the factory setting retracts the rod when the AC220V coil is energised, but you can reposition the valve to extend-when-energised. The terminal-style coil consumes 3.5 VA, features IP65 protection, activates in 0.05 seconds or less, and requires no separate remote valve to operate.
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