Airtac SAID40 Double Rod Cylinder SAID40X15S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X15S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X15S
The AirTAC SAID40X15-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a highly compact 15mm stroke. Because a carbon steel rod exits both end covers, the effective annulus area is identical on extend and retract. This yields exactly 528N of force in both directions at 0.5MPa, ensuring perfectly symmetric motion.
Equipped with a -S magnet, this variant directly supports AirTAC CMSE reed and DMSE solid-state sensors via the dual-side extruded barrel grooves. The rear rod extension is ideal for mounting a secondary cam, position flag, or driving a secondary mechanism while keeping the load guided against rotation.
Airtac SAID40 Double Rod Cylinder SAID40X15S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X15S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 SAID40X15S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 SAID40X15S Is Used
Symmetric Force Transfer
Ideal for mechanisms requiring identical push and pull dynamics, using the 528N both-way output to smoothly shuttle loads without force differential drift.
Twin-Station Actuation
The through-rod design allows the primary end to drive the main workpiece while the rear rod operates a secondary mechanism or secondary station simultaneously.
Rear-End Position Sensing
Mount an AirTAC CMSE or DMSE sensor on the rear groove to independently confirm stroke completion from the opposite end of the primary tooling.
Is the Airtac SAID40 Double Rod Cylinder SAID40X15S the Right Cylinder?
Choose this 40mm bore when an application demands equal push and pull forces alongside severe space constraints. If your project requires less force, the 32mm bore offers 345N each way at 0.5MPa; stepping up to the 50mm bore provides 825N. The 16mm rod and M12x1.25 thread provide robust side-load resistance for this short 15mm stroke.
As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 double-rod cylinders, utilizing a PT G1/4 port. Note that a plain SAID does not hold its load when air pressure is lost; for locking requirements, consider the SAIL or BSAID series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAID40X15S FAQ
It provides 528N of force at 0.5MPa and 739N at 0.7MPa. Because it is a double-rod cylinder, this force is identical in both the extend and retract directions.
Yes, it is dimensionally interchangeable per ISO 15552. It uses a PT G1/4 port and a standard 40mm mounting interface, but ensure you have rear clearance for the protruding rod.
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