Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08A
The AirTAC SAIF32X250-08A is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. This integrated valve delivers a 16.0 mm2 effective area (Cv 0.89) and operates at 5 cycles per second. Supplied with an AC220V terminal coil drawing 3.5 VA, it activates in 0.05 seconds. Because the manifold routes air via an O8 x O5 PU tube, the valve port (1/4) differs from the cylinder port (1/8). While the bare cylinder rates to 1.0 MPa, the practical operating range for this valved assembly is 0.15-0.8 MPa.
Delivering 402 N of push force at 0.5 MPa, this 32mm bore unit eliminates the need for a separate remote valve, reducing panel space and tubing. By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve. The carbon steel piston rod and aluminum barrel provide durable, decentralized machine control from a single electrical signal.
Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08A |
|---|---|
| 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 | 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 (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 SAIF32X250-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 32×250 | 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 SAIF32X250-08A Is Used
Decentralized Machine Stations
Eliminates long tubing runs from a central panel by driving individual stations directly from one AC220V signal.
Compact Assembly Tooling
Fits 402N push force into tight machine cells where mounting a separate 4M210 valve and cylinder is physically impossible.
Retrofit Automation Upgrades
Simplifies machine upgrades by replacing a standard SAI cylinder with a self-switching unit, saving wiring and plumbing labor.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF32X250-08A the Right Choice?
Choose this self-valved SAIF32X250-08A when decentralized stations require compact, space-saving actuation without the plumbing of a remote valve bank. If your application needs greater thrust, stepping up to the 40mm bore yields 628 N of push force at 0.5 MPa. For this 250mm stroke, ensure adequate guidance to handle side loads and prevent rod binding over extended travel. Remember that the built-in 5/2 valve routes air but does not lock the load; for true position holding under pressure loss, select the SAIL lock variant instead.
To replace this exact unit, match the 32mm bore, 250mm stroke, 1/4 valve port, AC220V terminal coil, PT thread, and standard carbon steel rod (no -S magnet). It is dimensionally interchangeable per ISO 15552 mounting interfaces, though the valve manifold adds to the overall envelope.
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 SAIF32X250-08A FAQ
The 32mm bore generates 402 N of push force at 0.5 MPa. The integrated 4M210-08 5/2 valve provides a 16.0 mm2 effective area (Cv 0.89) with a maximum frequency of 5 cycles per second.
No, the built-in 4M210 valve switches the cylinder directly from the AC220V terminal coil signal. Factory set to retract when energised, the valve can be repositioned to extend-when-energised if needed.
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