Airtac SAIF Series Standard Cylinder with Valve SAIF40X80S-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X80S-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 80mm 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
- Stroke80 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X80S-08B
The AirTAC SAIF40X80S-08B is a double-acting ISO 15552 profile cylinder with a built-in 4M210-08 5/2 solenoid valve, offering a Cv of 0.89 and a 16.0 mm2 effective area. Driven by a DC24V terminal entry coil drawing 3.0 W, it features an IP65 rating and a 0.05 s activation time. Because the cylinder body rates to 1.0 MPa but the internal piloted valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa. It delivers 628 N of push force at 0.5 MPa.
The integrated manifold uses an O8 x O5 PU tube to connect the valve and cylinder, meaning the 1/4" valve port differs from the cylinder's own port. The -S magnet supports CMSE reed and DMSE electronic sensors for position feedback. Factory-set to retract the rod when the coil is energised, the valve can be repositioned to extend-when-energised. This self-switching design eliminates remote plumbing, saving panel space for decentralized machine stations.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X80S-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X80S-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 80 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 SAIF40X80S-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×80 | 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 SAIF40X80S-08B Is Used
Decentralized Assembly Stations
Eliminates the need for a remote valve island on large machines by self-switching the 40 mm bore directly from a DC24V signal.
Space-Constrained Machinery
Saves valuable panel and tubing space by mounting the 4M210 valve and manifold directly on the ISO 15552 profile body.
Retrofit Automation
Ideal for upgrading older lines where running new pneumatic tubing back to a central control cabinet is impractical.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X80S-08B the Right Choice?
Choose this 40 mm bore when an application requires 628 N push force at 0.5 MPa; step down to a 32 mm bore for 402 N, or up to a 50 mm bore for 982 N. A self-valved SAIF is ideal when running separate valve tubing is costly or space-tight, as one coil signal drives the cylinder directly. For load-holding requirements, note that the 5/2 valve routes air and does not lock the load—consider an AirTAC SAIL lock cylinder instead.
When ordering a replacement, match the 40 mm bore, 80 mm stroke, 4M210-08 valve port, DC24V voltage, terminal entry, PT thread, and the -S magnet. The carbon steel rod and standard air cushions handle speeds of 30-800 mm/s. Since the 80 mm stroke is under 300 mm, standard mounting handles the load without auxiliary side-load guides.
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 SAIF40X80S-08B FAQ
The 40 mm bore generates 628 N of push force and 528 N of pull force at 0.5 MPa. The built-in 4M210-08 valve provides an effective area of 16.0 mm2 (Cv 0.89).
No, it has an integrated 5/2 valve that controls the cylinder from a single DC24V terminal connection. By default, the rod retracts when the coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve.
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