Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 150mm 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.
- BoreØ40 mm
- Stroke150 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08B
The AirTAC SAIF40X150S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Equipped with a DC24V terminal coil drawing 3.0 W, it delivers 628N push force at 0.5 MPa. While the cylinder body rates to 1.0 MPa, the practical operating range is 0.15-0.8 MPa because the built-in valve pilots internally within those limits. The manifold links the valve to the cylinder using O8 x O5 PU tubing.
By default, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised if your sequence demands it. This self-switching design eliminates remote plumbing, saving panel space for decentralized stations. The -S magnet option supports CMSE reed and DMSE electronic sensors for exact positioning, while the carbon steel rod handles standard industrial loads.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 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 SAIF40X150S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×150 | 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 SAIF40X150S-08B Is Used
Decentralized Assembly Stations
Ideal for large machines where running valve tubing back to a central manifold is costly; the integrated DC24V valve handles switching locally.
Compact Material Handling
The profile cylinder saves panel space while delivering 628N push force for part sorting and clamping on tight conveyor lines.
Retrofit Automation Upgrades
Drop-in ISO 15552 interchangeability makes it easy to upgrade existing frames with self-valved actuation and CMSE/DMSE sensor tracking.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08B the Right Choice?
Choose this 40mm bore if your application requires roughly 628N push force at 0.5 MPa; stepping down to a 32mm bore drops that to 402N, while a 50mm bore raises it to 982N. A self-valved SAIF unit beats a separate cylinder plus remote valve when you need decentralized control across a large machine, cutting tubing runs and wiring complexity. Remember that the 5/2 valve routes air but does not lock the load—use a SAIL lock cylinder if you need true position holding.
When ordering a replacement, verify the 40mm bore, 150mm stroke, PT1/4 cylinder port, 4M210-08 valve port, DC24V voltage, terminal entry, and the -S magnet. Since the stroke is under 300mm, standard guide requirements apply, but always account for side loads in your mechanical layout.
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 SAIF40X150S-08B FAQ
The 40mm bore generates 628N push and 528N pull force at 0.5 MPa. The built-in 4M210-08 valve has a 16.0 mm2 orifice with a Cv of 0.89, supporting cylinder speeds of 30-800 mm/s.
It uses a 5/2 solenoid valve that holds position via internal pilot pressure, not a spring. The factory setting retracts the rod when the DC24V coil is energised, but you can reposition the valve on the manifold to extend-when-energised.
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