Airtac SAIF Series Standard Cylinder with Valve SAIF80X125S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X125S-08B is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 125mm 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
- Stroke125 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X125S-08B
The AirTAC SAIF80X125S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. Equipped with a DC24V terminal coil drawing 3.0 W, it delivers a robust 2513N push force at 0.5 MPa. The included -S magnet enables precise position sensing with AirTAC CMSE reed and DMSE electronic switches. Because the cylinder body rates to 1.0 MPa but the built-in valve operates 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa.
This self-switching unit eliminates the need for a separate remote valve, drastically reducing panel space and plumbing for decentralized machine stations. The manifold connects to the cylinder via O10 x O6.5 PU tubing, and the valve port (1/4") differs from the cylinder port (3/8"). From the factory default, the piston rod retracts when the coil is energised; this can be reconfigured to extend-when-energised simply by repositioning the valve.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X125S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X125S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAIF80X125S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×125 | 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 SAIF80X125S-08B Is Used
Decentralized Automation Stations
Ideal for large machines with decentralized stations, eliminating long tubing runs by switching directly from a single DC24V terminal signal.
Heavy Material Handling
Provides 2513N push force at 0.5 MPa for clamping or lifting heavy workpieces without requiring a bulky external valve manifold.
Retrofit Space-Tight Machines
Drops neatly into existing ISO 15552 mounting dimensions while saving panel space, making it perfect for retrofits where running new air lines is difficult.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X125S-08B the Right Choice?
Select this 80mm bore when an application requires heavy thrust (up to 4523N push at 0.9 MPa) but stepping up to a 100mm bore is unnecessary. If your force requirements are lower, a 63mm bore provides 1559N push at 0.5 MPa and uses the same 4M310 valve platform. The SAIF80X125S-08B is ideal for space-tight machines where running valve tubing is costly, as one DC24V terminal electrical signal drives the entire actuator.
Remember that the built-in 5/2 valve routes air and is not a mechanical lock; the air cushion only decelerates the rod near stroke end. For true load-holding, consider an AirTAC SAIL lock cylinder. When replacing this unit, match the 80mm bore, 125mm stroke, 1/4" valve port, DC24V voltage, PT tapered threads, terminal entry, and the -S magnet.
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 SAIF80X125S-08B FAQ
The built-in 4M310-08 valve has an effective area of 25.0 mm2 (Cv 1.40). The 80mm bore cylinder generates 2513N push and 2268N pull force at 0.5 MPa, scaling up to 4523N push at 0.9 MPa.
No, the 5/2 valve is internal piloted and holds its position via air pressure, not a spring. By default, the rod retracts when the DC24V coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve.
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