Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 350mm 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
- Stroke350 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08A
The AirTAC SAIF50X350-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. This built-in valve provides a Cv of 0.89 and eliminates the need for remote plumbing, making it ideal for decentralized installations across large machines where panel space is tight. Equipped with an AC220V terminal coil, it delivers 3.5 VA power consumption, IP65 protection, and a rapid 0.05 s activation time. The assembly operates within a practical 0.15-0.8 MPa pressure range, as the valve limits the cylinder's 1.0 MPa base rating.
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore unit uses a carbon steel piston rod and PT1/4 cylinder ports. The manifold connects to the valve via O8 x O5 PU tubing. By default, the factory setting retracts the rod when the coil is energised, but you can reconfigure it to extend-when-energised simply by repositioning the valve. This self-switching design means one coil signal drives the entire cylinder.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 350 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 SAIF50X350-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×350 | 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 SAIF50X350-08A Is Used
Decentralized Automation
Perfect for large factory layouts where routing air lines back to a central manifold is costly; the built-in valve allows local control from a single electrical signal.
Compact Assembly Stations
Ideal for tight-tolerance workstations where panel space is at a premium, eliminating the need for external valve banks and streamlining the pneumatic architecture.
Machine Retrofitting
An excellent upgrade for older equipment requiring self-contained actuation, minimizing new tubing runs while providing reliable 982 N force at 0.5 MPa.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08A the Right Choice?
Choose this 50 mm bore model when you need 982 N push force at 0.5 MPa; step down to a 40 mm bore for 628 N, or up to a 63 mm bore for 1559 N if your load requires more thrust. The SAIF50X350-08A excels over a separate cylinder and remote valve in space-constrained machines, as the integrated 4M210 valve handles switching directly at the manifold, drastically reducing tubing runs and wiring complexity. With a 350 mm stroke, ensure you provide adequate side-load guidance to prevent rod binding and premature seal wear.
For replacements, verify the 50 mm bore, 350 mm stroke, PT1/4 cylinder port, 1/4 inch valve port, AC220V voltage, terminal electrical entry, and standard carbon steel rod. Note that the 5/2 valve routes air but does not lock the load; if you need true position holding without live pressure, consider the SAIL lock cylinder instead. This unit ships without a magnet, so add an -S suffix if you require CMSE reed or DMSE electronic sensors.
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 SAIF50X350-08A FAQ
The 50 mm bore generates 982 N push force at 0.5 MPa and 1767 N at 0.9 MPa. The integrated 4M210-08 5/2 valve has an effective area of 16.0 mm2 (Cv 0.89) and a maximum frequency of 5 cycles per second.
The 5/2 valve is internally piloted and holds its position pneumatically, not by a spring. By default, the rod retracts when the AC220V coil is energised, but this can be reconfigured to extend-when-energised by repositioning the valve. It does not lock the load without live pressure; for true load holding, use a SAIL cylinder.
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