Airtac SAIF Series Standard Cylinder with Valve SAIF50X125S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X125S-08A 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"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X125S-08A
The AirTAC SAIF50X125S-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Delivering a 16.0 mm2 effective area (Cv 0.89) and operating at 0.15-0.8 MPa, it generates 982N of push force at 0.5 MPa. This specific SKU includes a magnet for position sensing with CMSE reed and DMSE electronic switches, and is wired for AC220V via a standard terminal connection consuming 3.5 VA. The manifold connects the valve to the cylinder using O8 x O5 PU tubing.
By mounting the valve directly to the cylinder body, this unit eliminates remote plumbing and significantly reduces panel space, making it ideal for decentralized machine stations. Driven by a single coil signal with an IP65 rating and a 0.05s response time, the factory setting retracts the piston rod when energised, but you can reposition the valve to extend-when-energised if your logic requires it.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X125S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X125S-08A |
|---|---|
| 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 | 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 SAIF50X125S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×125 | 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 SAIF50X125S-08A Is Used
Decentralized Machine Stations
Eliminates the need to route long air lines back to a central valve island, driving individual stations directly via the AC220V terminal signal.
Space-Constrained Automation
The built-in 4M210-08 valve saves valuable footprint on tight machinery where mounting a separate remote valve and manifold is impractical.
Retrofit & Upgrades
Ideal for upgrading existing ISO 15552 cylinders to self-switching units, drastically cutting the pneumatic plumbing and labor required for installation.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X125S-08A the Right Choice?
Choose this self-valved SAIF assembly when you need to minimize tubing across a large machine and prefer decentralized control over a separate cylinder and remote valve bank. The 50mm bore provides 982N push force at 0.5 MPa; if your application requires less force, step down to the 40mm bore offering 628N, or step up to the 63mm bore providing 1559N if you need greater thrust. The integrated 5/2 valve holds its position via internal pilot pressure, but it does not lock the load mechanically—consult SAIL or BSAI cylinders if true load-holding is required.
This configuration uses a PT1/4 cylinder port and a 1/4 valve port, paired with a 125mm stroke. For any application exceeding 300mm of stroke, ensure adequate guide support to prevent side-loading damage to the profile barrel. When ordering a replacement, verify the 50mm bore, 125mm stroke, 4M210-08 valve, AC220V terminal coil, PT thread, and the -S magnet requirement.
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 SAIF50X125S-08A FAQ
The 50mm bore generates 982N of push force and 825N of pull force at 0.5 MPa. The integrated 4M210-08 5/2 valve provides an effective area of 16.0 mm2 (Cv 0.89) with a maximum frequency of 5 cycles per second.
Yes, the factory setting retracts the rod when the AC220V coil is energised, but you can reposition the valve to extend-when-energised. The built-in valve removes the need for a separate remote valve, saving panel space and reducing tubing for decentralized installations.
Related AirTAC Cylinders & Valves
Request a Quote for Airtac SAIF Series Standard Cylinder with Valve SAIF50X125S-08A
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.