Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08B 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"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08B
The AirTAC SAIF50X450S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This specific SKU operates on DC24V via a terminal electrical entry, consuming just 3.0 W with an IP65 rating and a rapid 0.05s activation time. The built-in valve provides an effective flow area of 16.0 mm2 (Cv 0.89). Because the valve manifold routes air internally through an O8xO5 PU tube, you eliminate remote plumbing and save panel space, making it perfect for decentralized machine stations. Although the bare cylinder rates to 1.0 MPa, the practical operating range for this valved assembly is 0.15-0.8 MPa.
Equipped with a magnet for position sensing, this unit works seamlessly with AirTAC CMSE reed and DMSE electronic switches. It delivers a robust 982N push force at 0.5 MPa. From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised if your sequence requires it. The 5/2 valve holds its position via internal pilot pressure, not a spring, meaning it routes air continuously without locking the load.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08B |
|---|---|
| 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 | 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 SAIF50X450S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×450 | 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 SAIF50X450S-08B Is Used
Decentralized Automation Cells
Eliminate bulky external valve banks by using this self-switching cylinder to execute localized actuation tasks across large factory layouts.
Extended Stroke Diverters
The 450mm stroke provides ample reach for sorting or diverting products on wide conveyor lines without needing complex linkages.
Compact Assembly Stations
Save valuable machine footprint by integrating the 4M210 valve directly onto the actuator, simplifying wiring and pneumatic plumbing.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X450S-08B the Right Choice?
Choose this 50mm bore when you need the 982N thrust class at 0.5 MPa; stepping down to a 40mm bore drops the push force to 628N, while an 80mm bore yields 2513N if your application demands heavier lifting. The self-contained SAIF design shines when running separate valve tubing is costly or space-prohibitive, allowing one DC24V signal to drive the actuator directly. For replacements, verify the 450mm stroke, PT1/4 cylinder port, 1/4" valve port, DC24V terminal coil, PT thread type, and the -S magnet requirement.
Because the 450mm stroke exceeds 300mm, ensure you provide adequate guide support to prevent rod side-loading and premature seal wear. Remember that neither the 5/2 valve nor the adjustable air cushions will mechanically hold a suspended load; if you need true load locking, consider the SAIL pneumatic lock variant.
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-08B FAQ
At 0.5 MPa, this 50mm bore cylinder generates 982N of push force and 825N of pull force. The integrated 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
No, the SAIF50X450S-08B has a built-in 5/2 solenoid valve that controls the cylinder directly from a DC24V terminal signal. By default, the rod retracts when energised, but you can reconfigure the valve to extend-when-energised by repositioning it on the manifold.
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