Airtac SAIF Series Standard Cylinder with Valve SAIF40X225-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X225-08A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 225mm 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
- Stroke225 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X225-08A
The AirTAC SAIF40X225-08A is a double-acting ISO 15552 profile cylinder that integrates a 4M210-08 5/2 solenoid valve directly onto its body. Driven by an AC220V terminal coil drawing 3.5 VA, the integrated valve delivers a 16.0 mm2 flow (Cv 0.89) and responds in 0.05 s. Because the valve manifold mounts locally using O8 x O5 PU tubing, it eliminates remote plumbing and is ideal for decentralized stations across large machines. The cylinder body rates to 1.0 MPa, but the practical operating range for this valved assembly is 0.15-0.8 MPa.
From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised if needed. This 40 mm bore generates 628 N of push force at 0.5 MPa. The unit uses a carbon steel rod and PT tapered threads. Note that the 5/2 valve routes air and the adjustable cushions only decelerate near stroke end; neither holds the load pneumatically without live pressure.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X225-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X225-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 225 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 | 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 (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 SAIF40X225-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×225 | 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 SAIF40X225-08A Is Used
Decentralized Automation
Eliminates the need for a remote valve island on large machines by switching directly at the cylinder, saving panel space and tubing.
Material Handling
Provides reliable 628 N push force for diverting or lifting packages on tight conveyors where running separate valve tubing is costly.
Compact Machining
Fits into space-constrained cells using the ISO 15552 profile interface, offering local 5/2 valve control without external plumbing.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X225-08A the Right Choice?
Choose this 40 mm bore when you need 628 N push force at 0.5 MPa; step down to a 32 mm bore for 402 N, or up to a 50 mm bore for 982 N. A self-valved SAIF unit is highly advantageous over a separate cylinder and remote valve when panel space is tight and running long tubing is costly. Select this AC220V terminal configuration for standard factory mains wiring. For position feedback, you would specify the -S magnet option to use AirTAC CMSE reed or DMSE electronic sensors. To replace this unit, match the 40 mm bore, 225 mm stroke, 1/4" valve port, AC220V voltage, terminal entry, PT threads, and standard carbon steel rod.
With a 225 mm stroke, ensure adequate guiding to prevent side-loading damage to the rod seals.
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 SAIF40X225-08A FAQ
At 0.5 MPa, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. The built-in 4M210-08 5/2 valve has an effective flow area of 16.0 mm2 (Cv 0.89).
No, it has a built-in 4M210 5/2 valve. By default, the rod retracts when the AC220V coil is energised, but the valve can be repositioned to extend-when-energised. It operates on 0.15-0.8 MPa.
Related AirTAC Cylinders & Valves
Request a Quote for Airtac SAIF Series Standard Cylinder with Valve SAIF40X225-08A
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.