Gears and transmission
Rotary Composting Drum Assembly
- Bounding box
- 4200.0 × 2575.0 × 1600.5 mm
- Engine
- Precision B-rep
- Parameters
- 26
- Published
- August 20, 2026
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The prompt
A mechanical horizontal 3D CAD model of an industrial rotary composting drum. Dimensions: Cylinder diameter 1.45 meters, length 2.00 meters. Features: 1. Horizontal cylinder mounted on a steel frame with a hollow central shaft (90mm diameter) running end-to-end with radial support spokes. 2. An external big crown gear mounted around the cylinder surface driven by a motor gearbox. 3. Internal geometry: Internal dual-pipe system welded at top 90 degrees (exhaust pipe with holes) and bottom 270 degrees (dual leachate/aeration duct). Internal reversed helical screw flights inside the drum. 4. Hydraulic tilting piston mechanism under one side of the base frame to tilt the whole assembly at 10 degrees. Industrial metallic finish, realistic engineering CAD style.
Parameters
| Name | Value | Range |
|---|---|---|
| Drum Outer Diameter | 1450 mm | 1000 – 2000 |
| Drum Length | 2000 mm | 1500 – 3000 |
| Wall Thickness | 10 mm | 5 – 20 |
| Flange Thickness | 20 mm | 10 – 40 |
| Shaft Outer Diameter | 90 mm | 50 – 150 |
| Shaft Inner Diameter | 70 mm | 40 – 120 |
| Number of Spokes per Ring | 8 | 4 – 12 |
| Spoke Length | 700 mm | 500 – 900 |
| Spoke Diameter | 30 mm | 20 – 50 |
| Crown Gear Outer Diameter | 1600 mm | 1500 – 1800 |
| Crown Gear Inner Diameter | 1470 mm | 1440 – 1500 |
| Crown Gear Axial Width | 150 mm | 100 – 200 |
| Gearbox Length | 500 mm | 400 – 600 |
| Gearbox Width | 500 mm | 400 – 600 |
| Gearbox Height | 400 mm | 300 – 500 |
| Pinion Gear Diameter | 200 mm | 100 – 300 |
| Internal Pipe Diameter | 100 mm | 50 – 200 |
| Helical Flight Width | 150 mm | 100 – 200 |
| Helical Flight Pitch | 500 mm | — |
| Helical Flight Thickness | 10 mm | 5 – 20 |
| Hydraulic Cylinder Diameter | 100 mm | 50 – 150 |
| Hydraulic Stroke | 300 mm | 200 – 400 |
| Frame Length | 2500 mm | 2000 – 3000 |
| Frame Width | 1500 mm | 1000 – 2000 |
| Frame Height | 500 mm | 300 – 800 |
| Frame Wall Thickness | 10 mm | 5 – 20 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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