Airtac SAID50 Double Rod Cylinder SAID50X125
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50X125 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 125mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke125 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAID50 Double Rod Cylinder SAID50X125
The AirTAC SAID50X125 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 125mm stroke. Because a piston rod exits both ends, the annulus area is identical on extend and retract, delivering an equal 825N of force in both directions at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Equipped with a standard carbon steel rod and PT tapered port threads (G1/4), this unit is built for industrial durability. The rear rod extension is highly useful for mounting a secondary cam, position flag, or driving a secondary mechanism while keeping the main load guided against rotation.
Airtac SAID50 Double Rod Cylinder SAID50X125 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50X125 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID50 Double Rod Cylinder SAID50X125
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID50 Double Rod Cylinder SAID50X125 Is Used
Symmetric Transfer
Ideal for moving payloads between two stations where the 825N push and pull forces must remain perfectly balanced throughout the entire cycle.
Anti-Rotation Slides
The twin-rod architecture prevents piston rotation, providing precise linear guidance for lifting slides and tooling platforms.
Rear-Rod Sensing
The protruding rear rod provides a dedicated mounting point for a position flag or cam to trigger external sensors without interfering with the primary work area.
Is the Airtac SAID50 Double Rod Cylinder SAID50X125 the Right Cylinder?
Select this 50mm bore when an application requires perfectly symmetric force and speed, stepping up from the 40mm bore (528N) or down from the 63mm bore (1402N) based on your load requirements. A double-rod design is preferred over a single-rod SAI when twin-station actuation or anti-rotation guidance is mandatory. It uses a reduced mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets found on single-rod variants.
As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 double-rod cylinders without relying on specific brand cross-references. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; a plain SAID does not hold a load if air pressure is lost. For position holding without live pressure, consider an external rod lock or the BSAID clamp-lock variant.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID50 Double Rod Cylinder SAID50X125 FAQ
Because the double-rod design occupies space on both sides of the piston, the effective area is equal in both directions. It provides 825N of force at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa for both extend and retract strokes.
Yes, the SAID50X125 is dimensionally interchangeable per ISO 15552 profile cylinder standards. It can serve as a drop-in replacement for other ISO 15552 double-rod cylinders using the standard mounting interface dimensions.
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