Airtac SAID40 Double Rod Cylinder SAID40AX150S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX150S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 150mm 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.
- BoreØ40 mm
- Stroke150 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX150S
The AirTAC SAID40X150-S is a double-acting, double-rod ISO 15552 profile cylinder. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal 528 N of force in each direction at 0.5 MPa. The -S suffix indicates an integrated magnet for position sensing.
This variant features a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance, and PT tapered port threads on the G1/4 ports. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE solid-state switches along either side of the body.
Airtac SAID40 Double Rod Cylinder SAID40AX150S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX150S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40AX150S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 SAID40 Double Rod Cylinder SAID40AX150S Is Used
Symmetric Force Transfer
Drives a workpiece back and forth with identical 528 N force and speed in both directions, ensuring perfectly balanced motion for precision transfer arms.
Anti-Rotation Slides
The twin-rod architecture prevents the piston from twisting under offset loads, providing stable linear guidance without external guides.
Rear-End Cam Actuation
Mount a cam or position flag on the protruding rear rod end to trigger secondary mechanisms or mechanical stops while the front rod performs the primary work.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX150S the Right Cylinder?
Choose this 40 mm bore when an application demands equal push and pull forces, which differs from a single-rod SAI where the push force is larger. The twin rods also provide dual-side guidance and superior anti-rotation resistance compared to a single rod. If you need less force, the 32 mm bore offers 345 N each way at 0.5 MPa; for heavier loads, the 50 mm bore provides 825 N both ways.
Note that a plain SAID does not hold its position if air pressure is lost or exhausted—the adjustable air cushions only decelerate the piston near stroke end, they do not act as a brake. For drop-in compatibility, this cylinder matches standard ISO 15552 mounting interface dimensions and uses the SAID accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR mounts entirely.
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 SAID40 Double Rod Cylinder SAID40AX150S FAQ
Because the double-rod design results in equal piston annulus areas on both sides, the output force is identical in both directions: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, it is dimensionally interchangeable per ISO 15552 profile cylinder standards. It uses the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits single-rod-only mounts like FB and CA.
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