Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08B is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 350mm 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
- Stroke350 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08B
The AirTAC SAIF80X350S-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. This built-in valve provides a Cv of 1.40 and operates at a maximum frequency of 4 cycles per second. Equipped with a DC24V terminal coil, it consumes 3.0 W, features IP65 protection, and activates in 0.05 seconds or less. The cylinder bore is 80mm with a 350mm stroke, generating a robust push force of 2513N at 0.5 MPa and 4523N at 0.9 MPa. A standard carbon steel rod and an -S magnet for CMSE or DMSE sensors are included.
Because the cylinder body rates to 1.0 MPa but the 4M310 valve limits pressure to 0.15-0.8 MPa, the practical operating range for this assembled unit is 0.15-0.8 MPa. The manifold connects to the cylinder via PU tubing (O10 x O6.5), meaning the 1/4" valve port differs from the cylinder's 3/8" port. By default, the piston rod retracts when the coil is energised, but you can reconfigure it to extend-when-energised by repositioning the valve. This self-switching design eliminates remote plumbing, saving panel space for decentralized machine stations.
Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIF80X350S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 80×350 | 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 SAIF80X350S-08B Is Used
Decentralized Assembly Lines
Eliminates the need for a central valve manifold, allowing independent cylinder control directly at the workstation to reduce tubing complexity.
High-Force Clamping Stations
Provides 2513N of push force at 0.5 MPa for holding heavy components during machining or welding processes.
Retrofit Automation
Ideal for upgrading older machines where routing new pneumatic lines to a remote panel is costly and space is tight.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X350S-08B the Right Choice?
Select this 80mm bore model when your application requires high thrust (2513N push at 0.5 MPa) and you want to avoid running long air lines to a remote valve bank. If you need less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa, while stepping up to 100mm provides 3927N. The integrated DC24V terminal coil simplifies wiring, and the PT-threaded 1/4" valve port offers ample flow for the cylinder's 30-800 mm/s speed range. The -S magnet enables position detection with CMSE reed or DMSE electronic sensors.
When ordering a replacement, verify the 80mm bore, 350mm stroke, 4M310-08 valve, DC24V voltage, terminal entry, PT threads, and the -S magnet. Since the stroke is 350mm, ensure adequate guide support to prevent excessive side loading on the rod. Note that the 5/2 valve routes air but does not lock the load; for true position holding under pressure loss, consider the SAIL series lock cylinder.
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 SAIF80X350S-08B FAQ
The 80mm bore generates a push force of 2513N at 0.5 MPa and 4523N at 0.9 MPa. The built-in 4M310-08 valve has an effective area of 25.0 mm2 (Cv 1.40) and supports up to 4 cycles per second.
No, the 5/2 valve routes air but does not lock the load without live pressure. This specific model uses a DC24V terminal coil (3.0 W, IP65). By default, the rod retracts when energised, but you can reposition the valve to extend-when-energised.
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