Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08B is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 250mm 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
- Stroke250 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08B
The AirTAC SAIF32X250-08B 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 orifice (Cv 0.89). Driven by a DC24V terminal coil drawing 3.0 W with IP65 protection and a 0.05 s response time, it eliminates the need for remote plumbing. While the bare cylinder rates to 1.0 MPa, the integrated valve limits the practical operating pressure to 0.15-0.8 MPa, matching the valve's internal pilot design.
In its factory setting, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve. At 0.5 MPa, this 32 mm bore generates 402 N of push force and 345 N of pull force. The manifold connects to the cylinder via O8 x O5 PU tubing, and the valve port (1/4 inch) is distinct from the cylinder port (PT1/4). Because it switches itself from one coil signal, it is perfect for decentralized stations across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAIF32X250-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 32×250 | 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 SAIF32X250-08B Is Used
Decentralized Machine Stations
Ideal for distributing actuation across a large machine frame, using a single DC24V signal to drive the cylinder without a remote valve bank.
Compact Assembly Automation
Fits neatly into space-tight machinery where the integrated valve and manifold block save valuable panel and footprint space.
Retrofit & Upgrades
Perfect for upgrading existing ISO 15552 cylinders to self-switching units, minimizing the need to run new pneumatic tubing across a machine.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08B the Right Choice?
Choose this self-valved SAIF32X250-08B when installing decentralized stations on a large machine where running separate valve tubing is costly or space-prohibitive. If your application requires greater thrust, stepping up to the 40 mm bore yields 628 N push at 0.5 MPa, but the compact 32 mm bore here is optimal for tight envelopes. The 250 mm stroke is well within the 1000 mm maximum standard stroke for this bore, but at this length you should implement a side-load guide to prevent rod binding.
For replacements, match the 32 mm bore, 250 mm stroke, 4M210-08 valve port, DC24V coil voltage, terminal electrical entry, and PT thread. Note that the 5/2 valve routes air and the variable air cushions only decelerate near stroke end; neither holds the load without live pressure. For true load-holding, consider the SAIL lock cylinder instead. Since no -S magnet is specified, this unit cannot use CMSE or DMSE sensors without modification.
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 SAIF32X250-08B FAQ
The 32 mm bore generates 402 N push and 345 N pull at 0.5 MPa. The built-in 4M210-08 5/2 valve provides an effective area of 16.0 mm2 (Cv 0.89) with a maximum frequency of 5 cycles per second.
The 5/2 valve routes air but does not hold the load without live pressure; for load-holding, look at the SAIL series. By factory default, the rod retracts when the DC24V coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve.
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