Hoppers - an important part of multihead weigher

Hopper Overall Shape Design

Hopper Hopper

The funnel-shaped hopper has a wide upper and narrow lower structure, which makes full use of the principle of gravity. After the material enters through the upper wider entrance, it naturally gathers under the action of gravity towards the lower narrower exit. This shape is suitable for granular and powdered materials with good fluidity, ensuring smooth material fall and reducing residue in the hopper.

For example, when packaging potato chips in the food industry and processing certain powdered additives in the chemical industry, the funnel hopper can effectively ensure the continuous supply of materials and avoid the occurrence of clogging.

Prismatic Hopper

The prism-like hopper usually takes on the shape of a cuboid or cube, and its corners are often rounded. This shape of the hopper is easier to achieve a compact layout in the arrangement of multiple scales, making full use of equipment space. Moreover, the prismatic hopper is suitable for some material handling scenarios that require specific blanking directions or have regular requirements for the hopper space.

For example, in the pharmaceutical industry, when the tablets need to be arranged in a certain direction into the package, the prismatic hopper can better cooperate with the corresponding guide device to ensure that the tablets are orderly fed.

Material of the hopper

Stainless Aluminium

The most commonly used material for Multihead Weigher Machine hoppers is stainless steel. Why would you choose stainless steel? First of all, because it is corrosion resistant, in food, medicine, chemical raw materials in the acidic, alkaline substances can be taken to resist. This makes the stainless steel hopper especially suitable for handling materials in these industries. In the food industry, it can prevent food from being contaminated, to protect food safety. Secondly, stainless steel is not only corrosion-resistant, high strength, the weight of the material and the impact it can withstand, long time to use is not easy to deform, in a total degree to increase the service life.

Engineering plastics

For some of the more sensitive to static electricity or the need to reduce the weight of the hopper for specific applications, engineering plastics will also be selected. For example, when dealing with certain flammable and explosive fine chemical materials, engineering plastic hoppers can effectively prevent static electricity to avoid safety accidents.

Hopper inner wall treatment

Polishing

To minimize the resistance between the material and the hopper's interior surface, the interior surface of the hopper is often smoothed. The smoothed interior surface is as sleek as glass, which facilitates the material's descent, particularly for materials with greater stickiness. For instance, when handling viscous products like honey and jam in the food sector, smoothing the hopper's interior surface can efficiently prevent the material from sticking to the hopper's interior, ensuring the precision and consistency of the material flow.

Anti-stick coating

For some special materials that are easy to adhere, in addition to polishing, a special anti-stick coating will be applied to the inner wall of the hopper. This coating can further reduce the material adhesion, ensuring that the hopper can maintain good blanking performance after multiple uses.