Yutung Conveyor manufactures custom hollow spiral screws for vacuum continuous dryers, cookers, cooling systems, and other bulk material processing equipment.
Structure
We weld two screw pieces together to get a vacuum space.
Application
It is used to dry or cool food, tea, or other materials.
When the media in the screw are hot oil, steam or hot water, the conveying materials (food, tea or sand etc) becomes from the wet to dry status.
When the media are the cooling fluid, the conveying materials like food, tea or sand will become cooling status from hot status, then can pack it immediately.
Applications of Hollow Spiral Screws
Our hollow spiral vacuum continuous dry is used in the screw vacuum dryer or cooker, also could be used for the hollow screw cooler.
I googled the pictures here: hollow spiral vacuum continuous dryer
Custom Hollow Spiral Screw Specifications
The diameter, length, material, pitch, and shaft structure can be customized according to the equipment design. The outer diameter can typically range from 250 to 800 mm, with lengths up to 6 m. We can manufacture the spiral flight together with the hollow or solid inner shaft according to customer drawings.
For complete screw conveying and drying system matching, explore our screw conveyor components, including continuous, sectional and tapered screw flights, hollow and solid shafts, and other custom components for bulk material handling.
Food-Grade Screw Options
We also manufacture the food-grade screws.
The material must be stainless steel 304 or above, and the surface must be fine and smooth without any material residue.
It is mainly used for food weighing and packaging, fluid food processing, pasta processing, etc.
