Airtac SAIF Series Standard Cylinder with Valve SAIF50X250-06A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X250-06A is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 250mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ50 mm
- Stroke250 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X250-06A
The AirTAC SAIF50X250-06A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-06 5/2 solenoid valve. This specific configuration pairs a 50mm bore with a PT1/8 valve port and an AC220V terminal coil. The built-in valve delivers an effective flow area of 14.0 mm2 (Cv 0.78) and cycles up to 5 times per second. Because the manifold routes air via an O8xO5 PU tube, you only need one electrical signal to drive the actuator, eliminating remote plumbing.
While the bare cylinder body rates to 1.0 MPa, the operating pressure for the assembled SAIF unit is 0.15-0.8 MPa due to the internal pilot valve limits. At 0.5 MPa this 50mm bore generates 982N of push force and 825N of pull force. From the factory, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised. The standard carbon steel rod and PT tapered threads ensure robust mechanical performance across the 250mm stroke.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X250-06A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X250-06A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 250 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| 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 SAIF50X250-06A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×250 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAIF50X250-06A Is Used
Decentralized Stations
Ideal for large assembly lines where routing individual valve tubes back to a central manifold is costly and complex.
Compact Machining
Fits directly into tight machine envelopes, removing the need for a separate valve island and saving valuable panel space.
Retrofit Automation
Perfect for upgrading existing pneumatic setups by adding localized control without extensive rewiring.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X250-06A the Right Choice?
Choose this self-valved SAIF50X250-06A when you need decentralized control across a large machine, as it saves panel space and tubing compared to a separate cylinder and remote valve. If your application requires higher thrust, stepping up to the 63mm bore yields 1559N push force at 0.5 MPa, whereas dropping to a 40mm bore reduces it to 628N. Since the 250mm stroke exceeds 300mm is not triggered here, standard mounting suffices, but always verify guide tolerances for longer strokes. Note that the 5/2 valve routes air but does not lock the load; for position holding under lost pressure, consider the SAIL lock series. To replace this exact unit, match the 50mm bore, 250mm stroke, 1/8 valve port, AC220V terminal coil, PT threads, and no magnet (-S omitted).
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 SAIF50X250-06A FAQ
The 50mm bore generates 982N of push force and 825N of pull force at 0.5 MPa. The built-in 4M210-06 valve provides an effective flow area of 14.0 mm2 (Cv 0.78).
It uses a 5/2 solenoid valve that holds its position via internal pilot pressure, not a spring. By default, the rod retracts when the AC220V terminal coil is energised, but it can be reconfigured to extend-when-energised by repositioning the valve.
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