Airtac SAID40 Double Rod Cylinder SAID40X80S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X80S 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 SAID40X80S
The AirTAC SAID40X80-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 80mm stroke. Because the twin rods occupy both sides of the piston, the annulus area is identical in both directions, yielding an equal push and pull force of 528 N at 0.5 MPa. The integrated -S magnet enables position sensing using AirTAC CMSE reed and DMSE electronic switches mounted along the dual sensor grooves.
A rod extends from both end covers, allowing you to drive a primary workpiece on one end while mounting a cam, position flag, or secondary mechanism on the rear rod. This twin-rod layout provides superior anti-rotation guidance compared to a single-rod SAI. The standard carbon steel rods feature M12x1.25 threads, and the cylinder body accepts PT (tapered) port connections at the G1/8 ports.
Airtac SAID40 Double Rod Cylinder SAID40X80S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X80S |
|---|---|
| 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 SAID40X80S
| 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 SAID40X80S Is Used
Symmetric Force Transfer
Ideal for transferring parts equally in both directions, utilizing the identical 528 N extend and retract force to push and pull components without speed variations.
Anti-Rotation Slides
The twin-rod design prevents piston rotation, providing precise linear guidance for sliding mechanisms that require strict orientation control without external guides.
Through-Rod Sensing
The rear rod extension can drive a secondary cam or position flag, allowing independent confirmation of stroke endpoints via CMSE or DMSE sensors on both ends.
Is the Airtac SAID40 Double Rod Cylinder SAID40X80S the Right Cylinder?
Select this 40mm bore model when an application requires symmetric force and speed in both travel directions, offering 528 N at 0.5 MPa. If your mechanism needs less force, the 32mm bore provides 345 N both ways; if you need higher output, step up to the 50mm bore which provides 825 N. Choose the SAID twin-rod configuration over a single-rod SAI when dual-side guidance, anti-rotation stability, or rear-rod actuation is mandatory.
This cylinder is dimensionally interchangeable per ISO 15552 mounting dimensions, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. It uses the reduced SAID mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. Note that the adjustable air cushions only decelerate the piston near stroke end; this cylinder does not hold a load when air pressure is lost. For position holding without live pressure, consider the SAIL or BSAID series.
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 SAID40X80S FAQ
Because the double-rod design creates equal 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, the SAID40X80-S is dimensionally interchangeable per ISO 15552 standards. It serves as a drop-in replacement for other ISO 15552 double-rod cylinders, utilizing a standard 40mm bore and G1/8 ports.
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