Airtac SAIF Series Standard Cylinder with Valve SAIF40X200S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X200S-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke200 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X200S-08B
The AirTAC SAIF40X200S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This specific SKU is configured with a PT1/4 valve port, a DC24V terminal coil connection, and a -S magnet for CMSE or DMSE sensors. The built-in valve delivers a Cv of 0.89 (16.0 mm2 orifice) and switches at up to 5 cycles per second. Because the cylinder body rates to 1.0 MPa but the internal pilot valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa. At 0.5 MPa it generates 628N of push force and 528N of pull force.
By default, the factory setting retracts the piston rod when the DC24V coil is energised, but you can reposition the valve to extend-when-energised if your logic requires it. The manifold connects to the cylinder via O8 x O5 PU tubing, meaning the 1/4 valve port differs from the cylinder's own 1/4 working port. This self-contained design requires only one coil signal to switch, eliminating remote plumbing and making it ideal for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X200S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X200S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 200 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 SAIF40X200S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×200 | 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 SAIF40X200S-08B Is Used
Decentralized Automation Cells
Ideal for large machines with decentralized stations, driving the 628N stroke directly from a single DC24V signal without remote valve banks.
Compact Assembly Lines
Saves panel space by mounting the 4M210 valve directly on the profile body, perfect for tight retrofits where plumbing new tubing is costly.
Material Handling Gates
Uses the factory retract-when-energised setting to reliably actuate sorting gates at up to 5 cycles per second with IP65 protection.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X200S-08B the Right Choice?
Choose this 40mm bore when 32mm lacks thrust (402N push at 0.5 MPa) but 50mm is excessive (982N push at 0.5 MPa). The 200mm stroke is well within the 40mm bore max standard of 1200mm, but at 200mm you should consider external guide rails to manage side loads. A self-valved SAIF beats a separate cylinder plus remote valve when panel space is tight or running tubing across a machine is costly. To replace this unit, match the 40mm bore, 200mm stroke, 1/4 valve port, DC24V voltage, terminal entry, PT thread, and the -S magnet.
Remember that the built-in 5/2 valve routes air but does not lock the load; if you need true position holding without live pressure, look to the SAIL lock or BSAI clamp-lock series. The air cushions only decelerate the rod near the stroke ends.
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 SAIF40X200S-08B FAQ
At 0.5 MPa, this 40mm bore cylinder generates 628N of push force and 528N of pull force. The built-in 4M210-08 valve has a 16.0 mm2 orifice with a Cv of 0.89.
Yes. The factory setting retracts the rod when the DC24V coil is energised, but you can reposition the 5/2 valve to extend-when-energised. It switches itself from one coil signal, so no separate remote valve is needed.
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