Airtac SAIF Series Standard Cylinder with Valve SAIF40X160-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X160-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 160mm 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
- Stroke160 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X160-08B
The AirTAC SAIF40X160-08B 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 628 N push force at 0.5 MPa. The integrated valve provides an effective flow area of 16.0 mm2 (Cv 0.89) and switches at up to 5 cycles per second. Because the valve manifold mounts directly to the cylinder body using O8 x O5 PU tubing, you eliminate remote plumbing and save panel space.
The base cylinder barrel is rated for 1.0 MPa, but the practical operating range for this assembled SAIF unit is 0.15-0.8 MPa due to the internal pilot valve limits. From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised if your sequence requires it. The cylinder port is PT1/4, while the valve port code is 08 (1/4), and the carbon steel rod resists bending under normal workloads.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X160-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X160-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 160 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 | 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 (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 SAIF40X160-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×160 | 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 SAIF40X160-08B Is Used
Decentralized Assembly Lines
Ideal for large machines with multiple stations, eliminating long air tubing runs by switching locally via the integrated 4M210 valve.
Compact Clamping Fixtures
Saves valuable panel space by mounting the valve directly on the cylinder, providing 628 N of clamping force right at the point of operation.
Machine Retrofits
Simplifies electrical and pneumatic upgrades on older equipment, requiring only a single DC24V signal to control the 160 mm stroke.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X160-08B the Right Choice?
Choose this 40 mm bore when you need more thrust than the 32 mm version (402 N push at 0.5 MPa) but want a smaller footprint than the 50 mm class (982 N push). The 160 mm stroke falls well within the 1200 mm standard maximum, making it a versatile choice for mid-length actuation. A self-valved SAIF excels in decentralized stations where running individual valve tubing back to a central manifold is costly or complex. The DC24V terminal connection offers low-power switching (3.0 W) with an IP65 rating and a 0.05 s activation time.
If your process drops pressure, the 5/2 valve does not hold the load in place—it only routes air. For true mechanical locking, consider the SAIL series instead. When ordering a replacement, confirm the 40 mm bore, 160 mm stroke, 4M210-08 valve, DC24V voltage, terminal entry, PT port threads, and the absence of a sensor magnet. For this 160 mm stroke, ensure adequate guide support to prevent side-loading on the rod.
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 SAIF40X160-08B FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. The built-in 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89) and supports a maximum frequency of 5 cycles per second.
No, the SAIF40X160-08B switches itself using the integrated 4M210 5/2 valve driven by a DC24V terminal coil. By factory default, the rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised if needed.
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