Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke80 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08A
The AirTAC SAIF50X80S-08A is a double-acting ISO 15552 profile cylinder featuring a built-in 4M210-08 5/2 solenoid valve. This integrated assembly delivers a Cv of 0.89 and generates 982N of push force at 0.5MPa. It includes a standard carbon steel piston rod and a built-in magnet (-S) for precise position sensing with CMSE reed or DMSE electronic switches. Driven by an AC220V terminal connection coil consuming 3.5VA, it activates in 0.05s or less.
Because the cylinder body rates to 1.0MPa but the internal pilot valve operates at 0.15-0.8MPa, the practical working range for this valved unit is 0.15-0.8MPa. The manifold connects the valve to the cylinder using O8xO5 PU tubing, meaning the 1/4" valve port differs from the cylinder's own PT1/4 port. By default, the factory setting retracts the rod when the coil is energised, but you can reposition the valve to extend-when-energised if needed.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 80 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| 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 | AC220V · AC 3.5 VA |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 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 SAIF50X80S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×80 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| A | Coil voltage AC220V. |
| 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 SAIF50X80S-08A Is Used
Decentralized Machine Stations
Eliminates the need for long runs of valve tubing back to a central panel, driving the cylinder directly from a single AC220V coil signal at the point of operation.
Space-Constrained Assembly
The integrated manifold block saves valuable footprint on compact machinery where mounting a separate valve island and cylinder pair is physically impossible.
Position-Sensed Handling
The -S magnet allows immediate feedback via DMSE solid-state or CMSE reed switches, ensuring the 982N push stroke completes before the next machine cycle begins.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X80S-08A the Right Choice?
Choose this 50mm bore when 40mm bore cylinders fall short on power, as stepping down to a 40mm unit drops your push force at 0.5MPa to 628N. Conversely, if your application requires heavier loads up to 1559N at 0.5MPa, stepping up to a 63mm bore is the better option. The SAIF50X80S-08A excels over a separate cylinder and remote valve setup by drastically reducing panel space, wiring complexity, and plumbing runs, making it ideal for decentralized stations across large machines.
When ordering a replacement, verify the 50mm bore, 80mm stroke, PT1/4 port threads, 1/4" valve port, AC220V voltage, terminal entry, and the -S magnet requirement. Remember that the built-in 5/2 valve routes air but does not lock the load; if your machine needs true load-holding without live pressure, consider the SAIL lock or BSAI clamp-lock series instead. For this 80mm stroke, side-load concerns are minimal, but always ensure proper guide support for the payload.
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 SAIF50X80S-08A FAQ
The 50mm bore generates a push force of 982N at 0.5MPa and 1767N at 0.9MPa. The built-in 4M210-08 5/2 valve provides an effective flow area of 16.0mm2 (Cv 0.89) with a maximum frequency of 5 cycles per second.
Yes. The factory setting retracts the piston rod when the AC220V coil is energised, but you can reconfigure it to extend-when-energised by physically repositioning the valve on the manifold block. This self-switching design means no separate remote valve is required.
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