Airtac SAIF Series Standard Cylinder with Valve SAIF32X400-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF32X400-08B 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 SAIF32X400-08B
The AirTAC SAIF32X400-08B is a double-acting profile cylinder dimensionally interchangeable per ISO 15552, featuring a built-in 4M210-08 5/2 solenoid valve with a 16.0 mm2 effective area (Cv 0.89). Driven by a DC24V terminal entry coil consuming 3.0 W, it eliminates the need for a separate remote valve. The manifold connects the valve to the cylinder using O8 x O5 PU tubing, meaning the 1/4" valve port differs from the cylinder's PT1/8" port. While the bare cylinder rates to 1.0 MPa, the integrated valve limits the practical SAIF operating pressure to 0.15-0.8 MPa.
This 32mm bore unit delivers 402N of push force at 0.5 MPa and operates at speeds of 30-800 mm/s. By default, the factory setting retracts the piston rod when the coil is energised, but it can be reconfigured to extend-when-energised by repositioning the valve. It uses a standard carbon steel piston rod and lacks a magnet for sensors. The 5/2 valve holds its position via internal pilot pressure, not a spring, making it ideal for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF32X400-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF32X400-08B |
|---|---|
| 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 SAIF32X400-08B
| 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 SAIF32X400-08B Is Used
Decentralized Machine Stations
Eliminates remote valve plumbing by driving the 32mm bore directly from a DC24V signal, saving panel space across large manufacturing lines.
Material Handling Diverters
Provides 402N of push force at 0.5 MPa for routing packages, with the built-in 4M210 valve handling rapid switching up to 5 cycles per second.
Space-Constrained Retrofits
Ideal for upgrading older machinery where running new valve tubing is costly, using a compact O8 x O5 PU manifold to self-switch.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF32X400-08B the Right Choice?
Choose this self-valved SAIF32X400-08B when decentralizing actuation across a large machine saves panel space and tubing runs. If your application requires greater thrust, stepping up to the 40mm bore yields 628N of push force at 0.5 MPa. For this 400mm stroke, ensure adequate guiding to prevent excessive side-load on the rod, as long strokes amplify moment loads. The 4M210 valve operates at a maximum frequency of 5 cycles per second.
Because the 5/2 valve routes air rather than mechanically locking it, this cylinder does not hold loads without live pressure; the variable air cushion only decelerates the piston near stroke ends. For positive load-holding, consider the SAIL lock variant. When ordering a replacement, match the 32mm bore, 400mm stroke, 1/4" valve port, DC24V voltage, PT thread, terminal entry, and no-magnet configuration exactly.
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 SAIF32X400-08B FAQ
The 32mm bore generates 402N of push force and 345N of pull force at 0.5 MPa. The integrated 4M210-08 valve has a 16.0 mm2 effective area (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
The DC24V coil drives the 5/2 valve, which holds its position via internal pilot pressure, not a spring. By default, the rod retracts when energised but can be reconfigured to extend. The valve routes air and does not lock the load without live pressure; the air cushion only decelerates near stroke ends.
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