Material Handling Equipments

Screw conveyors in modern industry are often used horizontally or at a slight inclination as an efficient way to move semi-solid materials. These can have a greater pitch spacing, resulting in a higher capacity without an increase in rotation speed. They usually consist of a trough containing either a spiral coiled around a shaft, driven at one end and held at the other, or a Shaftless Spiral, driven at one end and free at the other.

Screw Conveyors can be operated with the flow of material inclined upward. When space allows, this is a very economical method of elevating and conveying. It is important to understand, however, that as the angle of inclination increases, the allowable capacity of a given unit rapidly decreases.

RAJ Speciality in Screw Conveyor

  • Designed to ensure smooth operation
  • Jacketed designs to heat or cool the material during conveying
  • Designs with hollow shafts for cooling or heating media
  • Rugged screw flights to handle abrasive material with ease
  • Various options for material of constructions depending upon product properties
  • Designs with mechanical seals for operations under vacuum
  • Cantilever screw designs
  • Designed for easy operation and maintenance
  • Easy removal of screw for cleaning
  • GMP designs for food and pharmaceutical industry


  • Fuels: chippings, straw, sawdust, wood dust, peat, pellets, carbon, etc.
  • Waste matter: sludge, slaughter waste, manure, garbage, ash, bark, machine grindings, etc.
  • Food products: grain, powder, sugar, salt, flour, rest products, etc.
  • Various chemicals, minerals, dyes, pigments, starch, detergents etc.


  • Fully automatic system to ensure smooth and easy operation.
  • Sterile construction of equipment to maintain high hygiene level.
  • Energy Efficient.
  • Optimal space requirement.
  • Carefully selected material of constructions taking into account the product properties.
  • Complete sanitary design with CIP system.
  • PLC controlled SCADA operated system.


  • Turnkey Plants.
  • Manufacturing & Supply of Equipments.
  • Engineering and Supervision of Civil and Structural work.
  • Process and Detailed Engineering.
  • Project Management.
  • Commissioning and Training.