Airtac SAID40 Double Rod Cylinder SAID40AX140S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX140S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX140S
The AirTAC SAID40X140-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 140mm stroke. Because the piston rod extends from both end covers, the effective annulus area is identical in both directions, yielding an equal push and pull force of 528N at 0.5MPa. This through-rod architecture provides superior anti-rotation guidance for the payload compared to a single-rod SAI variant.
Equipped with a magnetic piston (-S), this unit supports AirTAC CMSE reed and DMSE electronic solid-state sensors housed within the dual-side barrel grooves. The rod is constructed from SUS420J2 stainless steel (material code A) for enhanced corrosion resistance, and fluid connections use PT tapered threads sized at G1/4.
Airtac SAID40 Double Rod Cylinder SAID40AX140S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX140S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 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 SAID40AX140S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×140 | 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 SAID40AX140S Is Used
Symmetric Force Transfer
Drives a transfer carriage where the matching 528N extend and retract forces at 0.5MPa prevent jerky movements and ensure consistent momentum on both strokes.
Rear-Rod Position Sensing
Uses the rear protruding rod end to trip a DMSE electronic sensor, providing a precise end-of-stroke confirmation for the primary tool without cluttering the main work area.
Anti-Rotation Slides
Guides a vertical lifting slide using the twin-rod structure to resist torsional twist and maintain strict parallelism during heavy vertical displacement.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX140S the Right Cylinder?
Select this 40mm bore double-rod cylinder when an application demands equal 528N thrust and retraction forces at 0.5MPa, or step up to the 50mm bore (825N both ways) if your payload requires greater symmetric power. The twin-rod design is specifically chosen over a single-rod SAI when you need to mount a workpiece on the front rod and a cam or position flag on the rear protruding rod, enabling dual-side actuation or external sensing without extra brackets.
For drop-in compatibility, it matches the ISO 15552 mounting interface dimensions and supports the SAID accessory subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold the load. If pressure is lost, the cylinder drifts, so use an external rod lock or a SAIL/BSAID variant for true position holding.
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 SAID40AX140S FAQ
Because the rod exits both ends, the effective piston area is identical on both sides. The output force is equal in both directions: 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa.
Yes, the SAID40X140-S is dimensionally interchangeable per ISO 15552. It shares the exact mounting footprint of other ISO 15552 profile cylinders, though you must ensure your design allows clearance for the rear rod protrusion.
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