Airtac SAIF Series Standard Cylinder with Valve SAIF80X350-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF80X350-08B 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 SAIF80X350-08B
The AirTAC SAIF80X350-08B is a double-acting ISO 15552 profile cylinder featuring an integrated 4M310-08 5/2 solenoid valve. This specific build pairs a 3/8 inch cylinder port with a 1/4 inch valve port, utilizing a PU tube (O10 x O6.5) to bridge the manifold block. Driven by a DC24V terminal entry coil consuming 3.0 W with an IP65 rating, it delivers a 0.05 s activation time. The integrated valve offers an effective area of 25.0 mm2 (Cv 1.40) and supports a maximum frequency of 4 cycles per second.
While the bare cylinder body rates to 1.0 MPa, the operating pressure for the assembled SAIF unit is 0.15-0.8 MPa due to the internal pilot valve limits. This 80 mm bore generates 4523 N of push force at 0.9 MPa. 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 SAIF80X350-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF80X350-08B |
|---|---|
| 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 SAIF80X350-08B
| 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 SAIF80X350-08B Is Used
Decentralized Assembly Lines
Eliminates the need for a remote valve island on large machines by controlling the cylinder directly at the point of operation with a single DC24V signal.
High-Force Clamping Stations
Provides 4523 N of push force at 0.9 MPa for securing heavy workpieces during machining, without consuming valuable panel space for external valves.
Retrofit and Upgrade Projects
Ideal for upgrading existing ISO 15552 fixtures where plumbing new pneumatic lines for a separate valve is impractical, using the integrated 4M310 valve instead.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF80X350-08B the Right Choice?
Choose this 80 mm bore when your application requires substantial thrust, pushing 4523 N at 0.9 MPa. If your force requirements are lower, stepping down to a 63 mm bore yields 2805 N at the same pressure while reducing physical envelope. Conversely, moving up to a 100 mm bore provides 7068 N. This SAIF model is ideal for space-tight machines or retrofits where running separate valve tubing is costly, as one coil signal directly drives the actuator. For replacements, verify the 350 mm stroke, 1/4 inch valve port, DC24V voltage, terminal entry, PT thread, and standard carbon steel rod.
Because the 350 mm stroke exceeds 300 mm, ensure adequate side-load support and use a guide mechanism to prevent rod deflection. Remember that the built-in 5/2 valve routes air but does not lock the load; if you need true position holding without live pressure, consider the SAIL lock series instead. The air cushions only decelerate the piston near the stroke ends.
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 SAIF80X350-08B FAQ
The 80 mm bore generates 4523 N of push force and 2268 N of pull force at 0.9 MPa. The built-in 4M310-08 5/2 valve provides an effective area of 25.0 mm2 (Cv 1.40) with a maximum frequency of 4 cycles per second.
By factory default, the rod retracts when the coil is energised. This behavior can be changed to extend-when-energised by physically repositioning the 5/2 valve on the manifold block. The valve holds its position via internal pilot pressure, not a spring.
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