Airtac SAIF Series Standard Cylinder with Valve SAIF50X500-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X500-08A 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 SAIF50X500-08A
The AirTAC SAIF50X500-08A is a double-acting ISO 15552 profile cylinder equipped with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89. Driven by an AC220V terminal-entry coil drawing 3.5 VA, it activates in 0.05 seconds. While the cylinder body rates to 1.0 MPa, the integrated valve limits the practical working pressure to 0.15-0.8 MPa. It delivers 982 N of push force at 0.5 MPa.
By integrating the valve directly on a manifold block with O8xO5 PU tubing, this unit switches itself from a single coil signal. This eliminates remote plumbing, saves panel space, and suits decentralized installations. The factory setting retracts the rod when energised, but you can reposition the valve to extend-when-energised. Note the valve port (1/4) differs from the cylinder port (1/4).
Airtac SAIF Series Standard Cylinder with Valve SAIF50X500-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X500-08A |
|---|---|
| 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 SAIF50X500-08A
| 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 SAIF50X500-08A Is Used
Decentralized Stations
Eliminates remote valve banks on large machines by switching locally via the AC220V terminal coil.
Long-Stroke Assembly
Provides 982N push force over a 500mm stroke for extending parts pushers in tight machine envelopes.
Retrofit Automation
Ideal for upgrading older lines where routing new pneumatic tubing to a central panel is impractical.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X500-08A the Right Choice?
Choose this 50mm bore when a 40mm bore provides insufficient thrust (628 N push at 0.5 MPa), but a 63mm bore (1559 N at 0.5 MPa) would be excessive. A self-valved SAIF50X500-08A is ideal for decentralized stations where running separate valve tubing is costly or space-prohibitive. Specify AC220V terminal entry for standard AC control panels.
Because the 500mm stroke exceeds 300mm, add an external guide to prevent rod side-loading and premature seal wear. The 5/2 valve holds position via pilot pressure, not a mechanical lock, so for dead-load holding choose a SAIL lock cylinder. Replacement requires matching bore 50, stroke 500, valve port 08, AC220V, terminal entry, PT thread, and no magnet (-S).
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 SAIF50X500-08A FAQ
At 0.5 MPa operating pressure, this 50mm bore cylinder provides 982 N of push force and 825 N of pull force. The maximum push force reaches 1767 N at 0.7 MPa.
The integrated 5/2 valve is internally piloted and runs at 0.15-0.8 MPa. Factory-set to retract the rod when the AC220V coil energises, it can be repositioned to extend-when-energised. It eliminates the need for a separate remote valve.
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