Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 800mm 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
- Stroke800 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08B
The AirTAC SAIF40X800-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This built-in valve provides an effective flow area of 16.0 mm2 (Cv 0.89) and operates at a maximum frequency of 5 cycles per second. Driven by a DC24V terminal coil drawing 3.0 W with an IP65 rating, it responds in 0.05 seconds or less. The unit uses a carbon steel piston rod and PT tapered threads. Because the 5/2 valve operates at 0.15-0.8 MPa, the practical working pressure for this assembled SAIF unit is 0.15-0.8 MPa, even though the cylinder body rates to 1.0 MPa.
By default, the factory setting retracts the piston rod when the coil is energised, but you can reconfigure it to extend-when-energised simply by repositioning the valve. The manifold connects to the cylinder via PU tubing (O8 x O5), meaning the 1/4" valve port differs from the 1/4" cylinder port. This self-switching design eliminates the need for a separate remote valve, reducing panel space and tubing runs for decentralized machine stations. At 0.5 MPa it generates 628N of push force and 528N of pull force.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 800 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 SAIF40X800-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×800 | 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 SAIF40X800-08B Is Used
Decentralized Conveyor Diverters
Eliminates remote valve plumbing by switching itself via the built-in 4M210-08 valve, ideal for distributed diverting stations along long conveyor lines.
Space-Tight Assembly Machines
Saves valuable panel space and reduces tubing runs in compact machinery by integrating the 5/2 solenoid valve directly onto the 40mm profile cylinder.
Retrofit Automation Upgrades
Perfect for upgrading older machines where routing new air lines to a central manifold is costly, requiring only a single DC24V electrical signal to operate.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08B the Right Choice?
Choose this 40mm bore when you need 628N push force at 0.5 MPa; stepping down to a 32mm bore drops the push force to 402N, while stepping up to a 50mm bore increases it to 982N. The integrated 4M210-08 valve makes the SAIF40X800-08B ideal for space-tight machines or retrofits where running remote valve tubing is costly, as it switches itself from one DC24V terminal coil signal. For load holding, note that the 5/2 valve routes air but does not lock the load—use a SAIL lock cylinder if you need mechanical holding. When replacing, match the 40mm bore, 800mm stroke, 1/4" valve port, DC24V voltage, terminal entry, PT threads, and no-magnet configuration. Because the 800mm stroke is relatively long, ensure adequate guide support to prevent excessive side-loading on the rod.
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 SAIF40X800-08B FAQ
At 0.5 MPa, this 40mm bore cylinder generates 628N of push force and 528N of pull force. The integrated 4M210-08 5/2 valve provides an effective flow area of 16.0 mm2 (Cv 0.89).
No, the integrated 4M210-08 valve switches the cylinder directly from a DC24V terminal coil signal. By default, the rod retracts when energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
Related AirTAC Cylinders & Valves
Request a Quote for Airtac SAIF Series Standard Cylinder with Valve SAIF40X800-08B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.