Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 150mm 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
- Stroke150 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08A
The AirTAC SAIF40X150S-08A is a double-acting ISO 15552 profile cylinder that integrates a 4M210-08 5/2 solenoid valve directly onto its manifold. This specific build features a 1/4" valve port yielding a 16.0 mm2 flow (Cv 0.89), paired with an AC220V terminal entry coil that draws 3.5 VA and responds in 0.05 s. The cylinder bore is 40 mm, generating 628 N of push force at 0.5 MPa. Because the valve operates at 0.15-0.8 MPa, this defines the practical working range for the assembled unit, even though the bare cylinder rates to 1.0 MPa.
By switching itself from a single coil signal, this actuator eliminates remote plumbing and saves panel space, making it ideal for decentralized machine stations. The manifold connects to the cylinder via O8 x O5 PU tubing, while the factory default setting retracts the rod when the coil is energised; this can be reconfigured to extend-when-energised simply by repositioning the valve. The -S suffix denotes an integrated magnet for position sensing with AirTAC CMSE (reed) or DMSE (electronic) switches.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 150 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 SAIF40X150S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×150 | 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 SAIF40X150S-08A Is Used
Decentralized Stations
Perfect for large machines with multiple nodes, eliminating long tubing runs by switching locally via the AC220V terminal coil.
Compact Assembly
Fits into tight machinery envelopes where a separate 4M210 valve and manifold block would consume too much mounting space.
Sensor-Ready Actuation
The integrated -S magnet provides precise end-of-stroke detection for CMSE and DMSE switches in automated clamping.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X150S-08A the Right Choice?
Choose this 40 mm bore when you need 628 N push force at 0.5 MPa; stepping down to a 32 mm bore drops the push force to 402 N, while a 50 mm bore increases it to 982 N. The self-valved SAIF architecture is superior to a separate cylinder and remote valve when wiring and air tubing runs are costly or space-constrained. This model uses an AC220V terminal connection with PT tapered threads. If your application requires holding the load without live air pressure, note that the 5/2 valve routes air but does not lock the piston; consider an AirTAC SAIL lock cylinder instead. For this 150 mm stroke, ensure adequate guide support to prevent side-loading. Replacement exact match: 40 mm bore, 150 mm stroke, 1/4" valve port, AC220V, terminal entry, PT thread, with magnet (-S).
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 SAIF40X150S-08A FAQ
The 40 mm bore generates 628 N push and 528 N pull force at 0.5 MPa. The integrated 4M210-08 5/2 valve has an effective orifice of 16.0 mm2 (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
No, the 4M210-08 valve is built into the manifold, requiring only the AC220V electrical signal to switch. The factory default retracts the rod when energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
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