Airtac SAID40 Double Rod Cylinder SAID40BX105
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX105 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 105mm 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
- Stroke105 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40BX105
The AirTAC SAID40X105 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and a 105mm non-standard stroke. Because a rod exits both end covers, the annulus area is identical on both sides, yielding exactly 528 N of force in both extend and retract directions at 0.5 MPa. This symmetric thrust makes it ideal for mechanisms requiring equal push and pull dynamics.
This variant is equipped with SUS304 stainless steel rods (option B) for superior corrosion resistance and uses PT tapered port threads. The rear rod extension is highly useful for externally mounting a cam or a position flag to trigger AirTAC CMSE reed or DMSE solid-state sensors installed in the dual-side barrel grooves. Note that the 105mm length is a made-to-order stroke, and the overall physical length requires extra rear clearance compared to a single-rod SAI.
Airtac SAID40 Double Rod Cylinder SAID40BX105 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX105 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 105 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 SAID40BX105
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×105 | 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 SAID40BX105 Is Used
Symmetric Transfer
Drives a pick-and-place arm with equal push and pull force, ensuring consistent cycle times regardless of travel direction.
Anti-Rotation Slide
Twin rods guide a vertical lifting slide, preventing piston rotation and maintaining precise tool alignment without external guides.
Rear-Cam Sensing
Mounts a cam on the rear rod end to physically trigger a limit switch, while the front rod performs the primary work.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX105 the Right Cylinder?
Choose this 40mm bore double-rod cylinder when your application demands equal force and speed both ways, or needs twin-side guidance to prevent rotation. If you need less force, the 32mm bore provides 345 N each way; if you need more, the 50mm bore offers 825 N. The SAID mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles found on single-rod variants. Because this is a 105mm non-standard stroke, expect a made-to-order lead time.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders. Remember that a plain SAID does not hold a load when air pressure is lost; for dead-load holding, consider an external pilot-operated check valve or the BSAID clamp-lock series. Since the stroke is over 100mm, ensure your external guide supports any heavy side loads to protect the rod bearings from bending.
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 SAID40BX105 FAQ
Because it is a double-rod cylinder, the effective area is the same on both sides. It delivers 528 N of force in both extend and retract directions at 0.5 MPa, and 739 N at 0.7 MPa.
Yes. The SAID40X105 is built to the ISO 15552 mounting interface, making it dimensionally interchangeable with other ISO 15552 double-rod profile cylinders, provided you account for the PT port threads.
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