Portable Trommel Screens for Municipal Solid Waste Manufacturer in India, Portable Trommel Screens for Municipal Solid Waste Suppliers & Exporters in India. Aravali Thermal manufactures high quality rotary trommels. It is used in screening variety of materials with larger capacity and ranges. The trommel are available in multiple screens. It is fitted with suitable size of hoppers. It sorts out different size of materials. It is supported with high grade of steel structure. It has low maintenance and easy to install.