Elevators

Our Complete range of products are Material Handling Elevators, Chain Elevators and Screw Elevator.

Material Handling Elevators

heights 25 meters
temperature 300°C

DEMECH supplies Bucket Elevators for vertically transporting various free-flowing bulk materials from dust to material having particles up to 30 mm.DEMECH supplies centrifuge or continuous types of Bucket Elevators with single and double strands of chains.Conveying buckets are mounted on chain. Conveyor speed is selected based on the type of discharge. Drive platform is provided at the top near drive end casing. For maintenance purpose an inspection window is provided at the boot section of bucket elevator.

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Chain Elevators

width 200 mm to 1250 mm
length 155 meters

DEMECH Chain conveyors are custom designed to suit the bulk material to be handled. For given operating parameters like speed, type of flights etc. For a chain conveyor, it is the material properties which decide whether the conveying will be with 'En-masse' effect or 'Drag' effect. DEMECH's vast experience in this field ensures that the conveyor is designed to operate at optimum efficiency by proper selection of speed, type of chain & flight etc.The conveyor profiles are generally as per the following diagrams but some additional variants can be manufactured & supplied to suit site conditions.The conveyors are designed with single or multiple numbers of inlet and discharge openings provided at the required locations along the conveyor path.The conveyors are manufactured according to application using Carbon Steel, Stainless Steel or other such material with various types of lining.DEMECH chains are made of alloy steel drop forgings. They are machined and heat treated to achieve desired strength and hard outer surface to withstand wear due to abrasion.Sprockets suitable for the forged chains are also manufactured by DEMECH in Carbon Steel and Alloy Carbon Steel which are case hardened for longer life.

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Screw Elevator

temperature 9000C

Standard screw conveyors are made out of carbon steel or stainless steel depending on the operating conditions.Sizing of screw conveyor and pitch of flight is determined with the reference to CEMA standards.Intermediate hanger bearings are provided for long conveyors for the screw to maintain allowable sag in the rotating member.Proper selection of angular speed for the Screw conveyor is critical in order to avoid wobbling effect during operation.The tough filling factor is selected according to nature of material and also with reference to CEMA standard with typically value of around 30%, however, the drive power rating is calculated based on 100% filling factor.For high temperature application a jacketed trough and box type flights are provided with circulating cooling water through, shaft & box flights. The quantity of cooling water depends on the properties & temperature of conveying material.

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