Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08E
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08E is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 125mm 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
- Stroke125 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08E
The AirTAC SAIF50X125-08E is a double-acting ISO 15552 profile cylinder with a built-in 4M210-08 5/2 solenoid valve. The integrated valve provides a Cv of 0.89 and eliminates the need for a remote valve bank, reducing tubing and panel space. It is wired for AC24V via a terminal connection, drawing 3.5 VA with an IP65 rating and a 0.05 s response time.
Because the cylinder body rates to 1.0 MPa but the internal piloted valve operates at 0.15-0.8 MPa, the practical working pressure for this assembled unit is 0.15-0.8 MPa. In its factory setting, the piston rod retracts when the coil is energised, but you can reconfigure the valve to extend-when-energised by simply repositioning it. At 0.5 MPa, this 50 mm bore generates 982 N of push force and 825 N of pull force.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08E Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08E |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 125 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 | AC24V · 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 SAIF50X125-08E
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×125 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| E | Coil voltage AC24V. |
| 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 SAIF50X125-08E Is Used
Decentralized Automation
Ideal for large machines with distributed stations, allowing independent cylinder control from a single coil signal without a central manifold.
Space-Constrained Machinery
The integrated valve manifold eliminates bulky external plumbing, fitting neatly into compact equipment envelopes.
Retrofit Projects
Perfect for upgrading existing lines where routing new pneumatic tubing back to a main panel is impractical or expensive.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X125-08E the Right Choice?
Choose this 50 mm bore when you need moderate force; stepping down to a 40 mm bore yields 628 N push at 0.5 MPa, while stepping up to a 63 mm bore provides 1559 N. A self-valved SAIF excels over a separate cylinder and remote valve in decentralized machine stations where running dedicated tubing is costly and space is tight.
This model has no magnet, so it cannot host CMSE reed or DMSE electronic sensors without modification. Remember that the built-in 5/2 valve routes air but does not lock the load—use SAIL or BSAI for true position holding. To replace this unit, match the 50 mm bore, 125 mm stroke, 1/4" valve port, AC24V terminal coil, PT thread, and no-magnet configuration.
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 SAIF50X125-08E FAQ
At an operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. The maximum push force reaches 1767 N at 0.9 MPa.
Yes. By default, the AC24V 4M210-08 5/2 valve is factory-set to retract the rod when energised. You can reconfigure it to extend-when-energised by repositioning the valve on the manifold block.
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