Airtac SAID40 Double Rod Cylinder SAID40BX30
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAID40 Double Rod Cylinder SAID40BX30
The AirTAC SAID40X30 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 30mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding exactly 528N of force in each direction at 0.5MPa. This symmetric output is ideal for twin-station actuation and maintaining balanced dynamics.
This specific configuration features SUS304 stainless steel rods (material code B) for superior corrosion resistance in washdown or chemically exposed environments. It uses PT tapered port threads (G1/4) and lacks a piston magnet. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE solid-state switches if retrofitted later.
Airtac SAID40 Double Rod Cylinder SAID40BX30 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SAID40BX30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SAID40BX30 Is Used
Symmetric Force Transfer
Provides identical 528N push and pull forces at 0.5MPa, making it perfect for transferring parts between two stations without adjusting pressure for direction changes.
Dual-Side Anti-Rotation
The twin SUS304 rods prevent piston rotation during high-speed movements, ensuring precise guidance for delicate pick-and-place tooling on both stroke ends.
Rear-Rod Cam Actuation
The protruding rear rod can independently drive a secondary mechanism or trigger a mechanical limit flag while the front rod executes the primary work stroke.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX30 the Right Cylinder?
Select this 40mm bore model over the 32mm version (which provides 345N both ways at 0.5MPa) when your application demands higher symmetric force within a compact footprint. The double-rod design is chosen over a single-rod SAI when you need dual-side guidance, anti-rotation stability, or a rear rod end to drive a secondary cam. With a short 30mm stroke, side-load stress on the rod bearing is minimal.
As a true ISO 15552 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). Note that the standard air cushions only decelerate the piston near stroke end; this cylinder will drift if air pressure is lost. For positive load holding, consider an external pilot-operated check valve or the BSAID clamp-lock 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 SAID40BX30 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It provides 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa.
Yes. As a true ISO 15552 profile cylinder, its mounting interface is dimensionally interchangeable with other ISO 15552 double-rod cylinders. Just ensure your porting matches the G1/4 thread.
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