... steel 2.U trought 3.flanged,bolted 4.adjusting capacity Variable Speed and Pitch Screw Conveyor for Transporting Powder 1.Pictures:2 ... for fabrication.All screw conveyors are fitted with various drives ( motor & gear reducer).(2) Each technical data is provided by ... the length ,capacity ,outlet's size,inlet's size,motor brand,bearing brand ,moisture,etc.Engineers are designed drawings according ...