Airtac SAIF Series Standard Cylinder with Valve SAIF50X500S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X500S-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 500mm 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
- Stroke500 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X500S-08A
The AirTAC SAIF50X500S-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This built-in valve delivers a Cv of 0.89 and utilizes an O8 x O5 PU tube to bridge the manifold block. Equipped with a magnet for CMSE reed and DMSE electronic sensors, it operates on an AC220V terminal coil drawing 3.5 VA with an IP65 rating and a rapid 0.05 s activation time.
Because the cylinder body rates to 1.0 MPa but the internal pilot valve limits pressure, the practical working range for this assembled unit is 0.15-0.8 MPa. Generating 982 N of push force at 0.5 MPa, it switches itself from a single coil signal, eliminating remote plumbing. The factory default retracts the rod when energised, which you can reconfigure to extend-when-energised by repositioning the valve.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X500S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X500S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 500 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 SAIF50X500S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×500 | 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 SAIF50X500S-08A Is Used
Decentralized Automation
Perfect for large machines with decentralized stations, eliminating long pneumatic tubing runs back to a central manifold.
Extended Stroke Handling
Handles 500 mm stroke tasks like part ejection or long transfers, requiring external guides to manage side loads.
Space-Constrained Retrofit
Ideal for upgrades where panel space is tight, using the built-in 4M210 valve to switch the actuator directly.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X500S-08A the Right Choice?
Choose this 50 mm bore when you need higher force than the 40 mm variant (628 N push at 0.5 MPa) but want a smaller envelope than the 63 mm size (1559 N). The 500 mm stroke demands attention: at this length, you must account for side loads and use a guide rail to prevent rod bending. This self-valved SAIF excels over a standard SAI cylinder with a separate remote valve by drastically reducing wiring and panel space in decentralized stations. To replace this unit, match the 50 mm bore, 500 mm stroke, 1/4" valve port, AC220V terminal coil, PT threads, and the -S magnet.
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 SAIF50X500S-08A FAQ
The 50 mm bore provides 982 N push and 825 N pull force at 0.5 MPa. The built-in 4M210-08 valve has an effective area of 16.0 mm2 (Cv 0.89) and a max frequency of 5 cycles/sec.
No, the 5/2 valve routes air but does not lock the load without live pressure. The factory default retracts the rod when the AC220V coil is energised, but you can reposition the valve to extend-when-energised. For true load holding, consider the SAIL lock cylinder.
Related AirTAC Cylinders & Valves
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