Airtac SAIF Series Standard Cylinder with Valve SAIF63X225S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF63X225S-08A is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 225mm 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.
- BoreØ63 mm
- Stroke225 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF63X225S-08A
The AirTAC SAIF63X225S-08A is a double-acting profile cylinder dimensionally interchangeable per ISO 15552, paired with an integrated 4M310-08 5/2 solenoid valve. This built-in valve delivers a Cv of 1.40 and operates at a max frequency of 4 cycles/sec. Configured with an AC220V terminal coil drawing 3.5 VA, it includes a -S magnet for CMSE reed and DMSE electronic sensors. Because the valve limits the assembly, the practical working pressure is 0.15-0.8 MPa, delivering 1559N of push force at 0.5 MPa.
By integrating the valve directly on the cylinder body via a manifold block and O10 x O6.5 PU tubing, this unit eliminates the need for a remote valve bank, saving significant panel space and plumbing time. The factory default setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. The valve port is 1/4 inch PT, while the cylinder port is 3/8 inch PT, ensuring correct airflow for the 63mm bore.
Airtac SAIF Series Standard Cylinder with Valve SAIF63X225S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF63X225S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø63 mm |
| Stroke | 225 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G3/8 |
| Rod thread | M16×1.5 |
| 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 | 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 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 SAIF63X225S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 63×225 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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 SAIF63X225S-08A Is Used
Decentralized Stations
Perfect for large machines with decentralized stations, eliminating remote valve plumbing by driving the 63mm bore directly from the integrated 4M310 valve.
Space-Tight Machinery
Ideal for compact machinery where panel space is restricted, using the built-in valve manifold to minimize external tubing and wiring.
Retrofit Automation
A great retrofit choice for upgrading older lines, replacing a separate cylinder and remote valve with a single self-switching AC220V unit.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF63X225S-08A the Right Choice?
Choose this self-valved SAIF63X225S-08A when a decentralized machine layout demands local actuator control without running long valve tubing back to a central panel. If your application requires less force, the 50mm bore neighbour provides 982N of push at 0.5 MPa; if you need more thrust, the 80mm bore offers 2513N at the same pressure. For a replacement, match the 63mm bore, 225mm stroke, 1/4 inch valve port, AC220V terminal coil, PT threads, and the -S magnet option. Since the stroke is 225mm, ensure adequate guiding to prevent excessive side-loading on the rod.
Remember that the integrated 5/2 valve routes air and holds its position via internal pilot pressure, but it does not lock the load mechanically. If power or air drops, the cylinder will move. For true load-holding requirements, consider the AirTAC SAIL lock cylinder or BSAI clamp-lock series instead of relying on the SAIF valve.
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 SAIF63X225S-08A FAQ
The 63mm bore generates 1559N of push force and 1402N of pull force at 0.5 MPa. The built-in 4M310-08 5/2 valve has an effective area of 25.0 mm2 (Cv 1.40) and supports a max frequency of 4 cycles/sec.
No, the integrated 4M310 valve switches the cylinder directly from one AC220V coil signal. By default, the rod retracts when the coil is energised, but the valve can be repositioned to extend-when-energised. The 5/2 valve holds its position via internal pilot, not a spring.
Related AirTAC Cylinders & Valves
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