Airtac SAID40 Double Rod Cylinder SAID40X80
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X80 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X80
The AirTAC SAID40X80 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 80mm stroke. Because a carbon steel rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal 528 N of force in both directions at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This through-rod design allows you to attach a primary workpiece on one end and a cam, position flag, or secondary mechanism on the rear rod end. It shares the exact ISO 15552 mounting interface of the single-rod SAI series but omits the FB, CA, CB, and CR mounts, utilizing a reduced accessory set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAID40 Double Rod Cylinder SAID40X80 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X80 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 SAID40X80
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 SAID40X80 Is Used
Symmetric Force Transfer
Ideal for machinery needing identical 528 N push and pull forces, ensuring consistent performance regardless of the direction of travel.
Anti-Rotation Slides
The twin-rod architecture prevents piston rotation, providing precise linear guidance for lifting and pressing tasks without external guides.
Rear-Rod Cam Actuation
Drive a primary tool on the front rod while using the rear protrusion to operate a secondary cam, limit flag, or separate mechanism.
Is the Airtac SAID40 Double Rod Cylinder SAID40X80 the Right Cylinder?
Choose this 40mm bore when your application requires equal push and pull forces alongside dual-side guidance to prevent rotation. If your mechanism needs less force, the 32mm bore provides 345 N both ways at 0.5 MPa; if you need more power, the 50mm bore offers 825 N each direction. The PT tapered porting matches the standard G1/4 thread size for this bore. Since this is a plain SAID without a lock mechanism, it will drift if air pressure is lost—use a SAIL or BSAID variant if position holding is required.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other standard double-rod profile cylinders. It operates smoothly at speeds between 30 and 800 mm/s, adjustable via the variable air cushions at both stroke ends. Ensure you specify the -S magnet option if you need to trigger electronic DMSE or reed CMSE sensors.
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 SAID40X80 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, the SAID40X80 is dimensionally interchangeable per ISO 15552 and serves as a drop-in replacement for other standard profile double-rod cylinders, utilizing a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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