Airtac SAID40 Double Rod Cylinder SAID40BX450
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX450 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40BX450
The AirTAC SAID40X450 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 450mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding exactly 528 N of force in each direction at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches.
This variant uses a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsh environments. The twin-rod architecture allows you to attach a workpiece on the front rod and a secondary cam, guide, or position flag on the rear rod, providing dual-side guidance and excellent anti-rotation stability.
Airtac SAID40 Double Rod Cylinder SAID40BX450 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX450 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 SAID40BX450
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 SAID40BX450 Is Used
Symmetric Transfer
Equal 528 N force both ways makes it ideal for pushing and pulling parts across a machining station with identical cycle times.
Anti-Rotation Slide
The twin-rod design prevents piston drift and rotation, guiding precision slides where a single rod would twist under offset loads.
Dual-Side Actuation
Mount the primary tool on the front rod and a rear position flag to trigger CMSE or DMSE sensors for dual-station confirmation.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX450 the Right Cylinder?
Choose this double-rod SAID40X450 over a single-rod SAI when your mechanism requires equal push and pull forces, symmetric speed, or anti-rotation guidance. If you need less force, the 32mm bore offers 345 N both ways at 0.5 MPa; stepping up to the 50mm bore provides 825 N. The PT tapered port is G1/4, and the standard mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Because this stroke is 450mm, the unsupported rod length during extension increases side-load risks; use an external guide to prevent rod-bearing bending. Note that a plain SAID does not hold position when air is lost—the adjustable air cushions only decelerate the piston near stroke end, so add a SAIL lock or BSAID clamp-lock if load-holding is required.
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 SAID40BX450 FAQ
Because the double-rod design subtracts the rod area on both sides, extend and retract forces are equal. It outputs 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa in both directions.
Yes, the SAID profile cylinder is dimensionally interchangeable per ISO 15552. You can replace other ISO 15552 double-rod cylinders using the standard Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interfaces.
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