Wood Hammer Mill for Sale

The introduction of Wood Hammer Mill

A full pulverizer set consists of the pulverizer main unit, fan, saxophone - shaped component, shut - off fan, dust bag, and other elements. Before assembly, the key components of the pulverizer, especially the rotor, are subjected to dynamic balance calibration. This is done to guarantee the stable running of the machine. Moreover, the motor base assembly platform and the rotor spindle bearing seat assembly platform are machined synchronously in one operation by a large - scale CNC machine tool. Such precision work ensures the smooth operation and the highest level of accuracy of the machine.

High - efficiency crushers find extensive application in the biomass energy and feed processing sectors. This apparatus is capable of crushing a wide range of raw materials, such as: Wood: pine, poplar, fir, bamboo, branches, bark, wood chips, shavings, etc. Straw: corn straw, wheat straw, rice straw, rice husks, peanut shells, cotton stalks, etc.

The primary wearing and replaceable parts of the hammer mill are as follows:

1. Hammers 

• Function: These are the crucial working elements of the hammer mill responsible for directly striking and pulverizing materials. They break down materials by delivering high - speed rotational impacts.

• Reasons for Wear: Wear occurs as a result of continuous impacts, cutting, and crushing actions on materials over an extended period. The presence of high - hardness materials, large and non - uniform feed particle sizes exacerbates this wear. Additionally, when the equipment operates continuously for long durations and the hammers are constantly under stress, the rate of wear is further accelerated.

• Materials and Characteristics: High manganese steel is a commonly used material. It has a low cost but its wear resistance is limited, and it is challenging to repair when significantly worn. High chromium cast iron, on the other hand, offers high hardness and good wear resistance, yet its toughness is relatively poor. Alloy steel, with its better overall performance, is well - suited for crushing high - hardness materials.

• Replacement Criterion: Replacement should be contemplated when the hammer surface shows severe wear, deformation, or distinct cracks. Also, if it leads to a degradation in the crushing outcome, like uneven output material particle sizes, reduced production output, or frequent equipment blockages.

2. Screen Mesh

• Function: Its role is to sift the crushed materials, regulate the particle size of the discharged materials, and ensure that the product particle size conforms to the required standards.

• Reasons for Wear: The screen mesh is exposed to the friction and impact of the passing crushed materials. Hard contaminants within the materials cause localized concentrated wear on the screen. Prolonged use of the screen mesh leads to a weakening of its strength due to fatigue, which in turn speeds up the wear process.

• Materials and Characteristics: Stainless steel is a common choice due to its strong corrosion resistance, making it suitable for screening wet or corrosive materials. Manganese steel, with its high strength and good wear resistance, is frequently employed for handling materials of relatively high hardness.

• Replacement Criterion: Replacement is necessary when the screen mesh experiences large - scale damage, when the mesh size exceeds the allowable limit, or when there is a substantial decline in screening efficiency, such as a large quantity of materials not meeting the particle size requirements passing through.

3. Rotor

• Function: As a component that holds the hammers and enables their high - speed rotation, the rotor is a vital moving part for the hammer mill to carry out the crushing function.

• Reasons for Wear: Through long - term high - speed rotation of the hammers, the rotor itself endures significant centrifugal and impact forces, rendering parts like the journal susceptible to wear. When materials infiltrate the gap between the rotor and the machine body, abrasive wear takes place. Factors such as poor lubrication and insufficient installation accuracy further intensify the rotor's wear.

• Materials and Characteristics: It is typically fabricated from high - quality steel, such as medium carbon steel or alloy steel, and its strength and wear resistance are enhanced through heat treatment processes like quenching and tempering.

• Replacement Criterion: Replacement should be considered when the wear of the rotor journal goes beyond the tolerance range, which impacts the bearing - matching accuracy and increases equipment vibration. When the rotor has severe deformation or cracks that compromise operational stability and safety, or when the balance accuracy is severely compromised and cannot be rectified even after dynamic balance adjustment.

Company Profile

We are deeply convinced that quality and efficiency form the bedrock upon which an enterprise can establish itself, and that service and quality are the keys that unlock an enterprise's growth. Our product portfolio consists of wood chip pellet machines, straw pellet machines, biomass pellet machines, sludge briquetting machines, and air flow and drum series drying devices. Also included are cutting and crushing series equipment, as well as a comprehensive set of biomass pellet production line equipment such as other supporting cooling, screening, packaging, and conveying equipment. Our company's technicians will customize and engineer the equipment according to the specific needs of customers and the real - world space available in their factory buildings.