The structure need be understood clearly, then model selection, it is very important, so this article focuses on Z-type bucket elevator’s structure and model selection.

The Structure :
1.Z-type bucket elevator  is assembled from the upper casing, the main shaft component, the reducer, the coupling, the motor and the like.
2.Middle casing : According to the height to be upgraded, a different number of middle casings can be stacked to meet the needs.
3.Lower part : it is integrated by the bottom casing, the driven shaft components and the tensioning device. There are doors on the side of the case that can be opened and the inside of the case can be inspected for cleaning.
4.Chain and hopper: The chain is a round steel welded chain. The hopper is placed on the joint of the chain with a nut. Different heights of the bucket lifter are now equipped with the corresponding number of chains, joints, and hoppers.
Model Selection
As a commonly used lifting device, the selection of Z-type bucket elevator is subject to many factors, and the wrong model will bring endless trouble to the user. Generally, the selection of the Z-type bucket elevator depends on the following factors:
1.Material form: Whether the material is powdery or granular or small.
2.The physical properties of the material: whether the material has adsorption or viscosity, whether it contains water.
3.Specific gravity of materials: The general bucket elevator parameters are designed and calculated for materials with a specific gravity of 1.6 or less. Too large a specific gravity of the material requires calculation of the traction force and the tensile strength of the transmission part.
4.Delivery per unit time.
Generally speaking, the shape of the material directly determines the unloading mode of the material. The common rule is that the powdered material is discharged by centrifugal casting, and the bulk material is discharged by gravity.
The different discharge methods determine the different types of hoppers used in Z-type bucket elevators. The centrifugal discharge discharges mostly use shallow buckets and curved buckets, while gravity discharge requires deep buckets.
The type of hopper used in the bucket lifter is different, and the amount of material transported per unit time is different.
The final conveying capacity of the Z-type bucket elevator is a comprehensive parameter depending on the hopper form, bucket speed, material specific gravity, material properties, and number of hoppers.