Airtac SAIF Series Standard Cylinder with Valve SAIF80X400S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X400S-08B is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 400mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ80 mm
- Stroke400 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X400S-08B
The AirTAC SAIF80X400S-08B is a double-acting ISO 15552 profile cylinder featuring a built-in 4M310-08 5/2 solenoid valve. Driven by a DC24V terminal coil consuming 3.0 W, it eliminates remote plumbing. The integrated valve boasts a 25.0 mm2 orifice (Cv 1.40) and cycles up to 4 times per second. 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.
This 80mm bore unit generates 2513N of push force at 0.5 MPa and 3518N at 0.7 MPa. A factory setting retracts the rod when the coil energises, but you can reposition the valve to extend on signal. The manifold links to the cylinder via PU tubing (O10 x O6.5). Equipped with a magnet, it supports CMSE reed and DMSE electronic sensors for precise position feedback.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X400S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X400S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 400 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| PU tube | Ø10 × Ø6.5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 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 SAIF80X400S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×400 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAIF80X400S-08B Is Used
Decentralized Assembly Stations
Ideal for large machines with multiple nodes, using the built-in DC24V valve to actuate the 80mm bore locally without running long pneumatic lines back to a central manifold.
High-Force Clamping Fixtures
Delivers 2513N of push force at just 0.5 MPa, perfect for securing heavy workpieces during machining operations where space for a separate valve is restricted.
Retrofit Automation Upgrades
Simplifies machine upgrades by bundling the cylinder and 5/2 valve into one assembly, minimizing wiring and pneumatic plumbing effort in tight existing enclosures.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X400S-08B the Right Choice?
Choose this 80mm bore if a 63mm bore is insufficient (the 63mm yields 1559N push at 0.5 MPa) or if you need to step down from a 100mm unit (3927N at 0.5 MPa). The self-contained 4M310-08 valve architecture is optimal for decentralized machine stations, saving panel space and cutting tubing runs. For load-holding applications, note that the 5/2 valve routes air but does not lock the piston; consider the SAIL series for mechanical locking needs.
When ordering a replacement, match the 400mm stroke, 3/8 inch cylinder port, 1/4 inch valve port, DC24V voltage, terminal entry, PT thread, and the -S magnet. Because the 400mm stroke is substantial, ensure adequate guiding to prevent side-load damage to the rod and seal.
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 SAIF80X400S-08B FAQ
The 80mm bore provides 2513N push force and 2268N pull force at 0.5 MPa. The integrated 4M310-08 valve has an effective area of 25.0 mm2 (Cv 1.40) and a maximum frequency of 4 cycles per second.
It uses a 5/2 solenoid valve that holds position via internal pilot pressure. By default, the rod retracts when the DC24V coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve. This eliminates the need for a separate remote valve.
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