Airtac SAID40 Double Rod Cylinder SAID40BX105S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX105S 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 SAID40BX105S
The AirTAC SAID40X105-S is a double-acting, double-rod ISO 15552 profile cylinder. Because a stainless SUS304 rod exits both end covers, the effective piston area is identical on extend and retract, yielding an equal 528N of force in each direction at 0.5 MPa. This 105mm stroke is a non-standard made-to-order length, ensuring you get exact travel for specialized tooling.
The integrated -S magnet allows position detection using AirTAC CMSE reed or DMSE solid-state switches housed in the dual-side sensor grooves. It features a G1/4 PT port and adjustable air cushions at both ends to decelerate the piston near stroke limits.
Airtac SAID40 Double Rod Cylinder SAID40BX105S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX105S |
|---|---|
| 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 SAID40BX105S
| 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 SAID40BX105S Is Used
Symmetric Transfer
Drives a workpiece forward and back with identical 528N force and speed, ensuring balanced momentum in automated transfer lines.
Anti-Rotation Slide
The twin-rod construction prevents piston rotation, guiding precision slides and clamps that cannot twist under offset loads.
Rear-Cam Actuation
The protruding rear rod end drives a secondary cam or mounts a DMSE sensor flag for dual-station synchronization.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX105S the Right Cylinder?
Choose this double-rod cylinder over a single-rod SAI when your mechanism requires dual-side guidance, anti-rotation resistance, or a rear-rod cam for secondary actuation. If your application demands higher force, stepping up to the 50mm bore yields 825N both ways at 0.5 MPa. Remember that the adjustable cushion only decelerates the piston; it does not hold a load. If you need position holding without live air pressure, consider an external rod lock or the SAIL lock variant.
As a true ISO 15552 extruded aluminum profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAID40BX105S FAQ
Because the rod occupies both sides of the piston, extend and retract forces are equal. It generates 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa in both directions.
Yes. It is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders using the standard mounting interface.
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