Airtac SAIF Series Standard Cylinder with Valve SAIF32X400S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF32X400S-08B is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 400mm 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.
- BoreØ32 mm
- Stroke400 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF32X400S-08B
The AirTAC SAIF32X400S-08B is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. Driven by a DC24V terminal coil drawing 3.0 W, it delivers a Cv of 0.89 and activates in under 0.05 s. The integrated manifold uses O8 x O5 PU tubing to bridge the valve and cylinder, meaning the 1/4" valve port and 1/8" cylinder port are distinct connections. Equipped with a magnet, it supports CMSE reed and DMSE electronic sensors for precise end-of-stroke detection.
Because the 4M210 valve operates at 0.15-0.8 MPa, the practical working range for this assembled SAIF unit is 0.15-0.8 MPa, even though the cylinder body rates to 1.0 MPa. At 0.5 MPa it generates 402N of push force. The factory setting retracts the rod when the coil is energised, but you can reposition the valve to extend-when-energised. This self-switching design eliminates remote plumbing, saving panel space in decentralized machine layouts.
Airtac SAIF Series Standard Cylinder with Valve SAIF32X400S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF32X400S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø32 mm |
| Stroke | 400 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 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 SAIF32X400S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 32×400 | 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 SAIF32X400S-08B Is Used
Decentralized Assembly Lines
Ideal for large machines with multiple stations, eliminating long tubing runs by controlling the cylinder directly via its DC24V coil signal.
Space-Constrained Machinery
The built-in 4M210 valve manifold saves valuable panel space, fitting a 400mm stroke actuator into tight retrofit envelopes.
Wiring-First Retrofits
Perfect for upgrades where adding electrical wiring is easier than plumbing new air lines, offering IP65 protection and solid-state reliability.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF32X400S-08B the Right Choice?
Choose this 32mm bore if your application requires around 402N push force at 0.5 MPa; stepping down is not an option, but stepping up to the 40mm bore yields 628N if your load demands more. The 400mm stroke on this profile cylinder necessitates careful attention to side loads—always use a guide rail to prevent rod binding and premature seal wear.
A self-valved SAIF beats a separate cylinder and remote valve when floor space is tight and running tubing across a large machine is costly. This DC24V terminal entry model uses PT threaded ports. Remember that the built-in 5/2 valve routes air but does not lock the load—without live pressure the rod will move. For position holding, consider an AirTAC SAIL lock cylinder. Replacement requires matching the 32mm bore, 400mm stroke, 1/4" valve port, DC24V voltage, terminal entry, PT thread, and the -S magnet.
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 SAIF32X400S-08B FAQ
The 32mm bore generates 402N push and 345N pull force at 0.5 MPa. The built-in 4M210-08 valve has a 16.0 mm2 orifice with a Cv of 0.89.
No, the 4M210 5/2 valve is built-in. By default, the piston rod retracts when the DC24V coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve.
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