Wheat Coarse Crusher

What is a Wheat Coarse Crusher?

Wheat grains are asymmetrical in shape, with deep ventral grooves, and the bran is tough while the endosperm is brittle. Direct processing with rollers or hammer mills easily tears the bran and grinds the endosperm into powder, leading to increased flour ash content and decreased flour yield. The Wheat Coarse Crusher uses a toothed disc crusher with a replaceable screen to precisely break whole wheat into uniform coarse grains of 3-5 pieces, adjustable from 2-8mm. Large pieces of bran are preserved intact, and the endosperm is not excessively powdered, creating an ideal material grading foundation for subsequent bran milling systems. Processing capacity ranges from 50-5000 kg/h and can be customized to meet customer needs.

What types of Wheat Coarse Crusher are available?

Depending on the application of the wheat, Wheat Coarse Crushers are available in three specifications: toothed disc, hammer mill, and roller crusher. The appropriate model can be selected based on specific requirements.

Device-type Wheat Coarse Crusher: Concentric toothed rings are embedded on the moving and fixed discs. Material enters from the center and passes through the teeth under centrifugal force, being progressively impacted and sheared. Suitable for materials like wheat that require controlled particle size and reduced temperature rise.

Hammer Coarse Crusher: The rotor drives hammers to strike at high speed. Replaceable screens are provided at the bottom/sides. Suitable for coarse crushing of wheat and production lines using multiple grains, offering greater versatility.

Double-Roller Coarse Crusher: Differential-speed double-roller extrusion and shearing, commonly used for coarse crushing of larger particles (5-8mm), suitable for wheat grinding and mixing with feed.

What are the advantages of a Wheat Coarse Crusher?

The Wheat Coarse Crusher achieves low rotational speed and minimal temperature rise by precisely controlling the linear velocity at 50-65 m/s, thus preventing gluten denaturation. It employs a bran-friendly crushing chamber, replacing traditional hammer crushing with "splitting" and "shredding," reducing bran tearing. Equipped with independent screen sections, it allows for flexible replacement of 2.0/4.0/6.0 mm aperture combinations of screens depending on whether the wheat is hard or soft. A powerful permanent magnet is standard at the feed inlet to effectively intercept debris such as nails and wires. The entire system utilizes a sealed negative pressure design, resulting in excellent dust control and meeting the cleanliness requirements of food processing workshops. Furthermore, the wear-resistant alloy toothed disc has a lifespan of ≥15,000 hours, ensuring stable output particle size when processing large batches of hard wheat.

How does the Wheat Coarse Crusher work?

In the Wheat Coarse Crusher, wheat enters the crushing chamber through the feed hopper. The high-speed rotating blades and fixed blades create a strong impact, shearing, and friction effect, breaking the wheat particles. After crushing, the wheat automatically flows to the outlet under centrifugal force. Before exiting, the wheat passes through a perforated screen at the bottom of the machine. Only wheat particles smaller than the screen aperture are discharged; larger particles remain in the crushing chamber for further crushing until the required particle size is achieved. The output particle size can be controlled by changing the screen aperture or adjusting the rotor speed.

Wheat Coarse Crusher Parameters

What are the applications of Wheat Coarse Crusher?

Wheat Coarse Crusher can grind wheat to the desired particle size. In flour processing pretreatment, by coarsely crushing wheat particles evenly, it effectively improves the scraping rate of subsequent grinding processes and reduces energy consumption. It is particularly helpful for separating endosperm from bran in hard wheat, increasing flour yield. In malt production and beer brewing, coarsely crushing wheat to 2-4mm malt particles ensures smooth lees filtration and stable sugar extraction efficiency. In feed processing, coarsely crushing wheat to a suitable particle size for use as livestock feed improves animal digestibility and feed conversion efficiency. Furthermore, in the field of whole grain food processing, it can provide coarser wheat coarse-grained base material with better gelatinization characteristics for whole wheat bread flour and compound whole grain flour.

Wheat Coarse Crusher Customer Case

A North African flour mill originally used a roller mill to directly grind the first bran. Due to the high amount of impurities in the grooves of the local hard wheat, the mill rollers wore out quickly, and the first bran flour yield fluctuated greatly. After using the Machrise WCC-800 Wheat Coarse Crusher for pre-crushing, the life of the bran grinding rollers is extended by approximately 35%, and the bran flour yield increases by 1.8 percentage points.

Wheat Coarse Crusher FAQs

Q: Can a hammer mill be used instead of a wheat coarse crusher?

A: Not recommended. Hammer mills tend to produce too much fine powder when used for wheat crushing, damaging the bran structure and affecting flour quality and processing yield. Coarse crushers are designed for controlled particle size.

Q: What adjustments are needed when processing wheat of different hardness?

A: Mainly adjust the screen aperture and feeding speed. Hard wheat takes longer to crush, so it may be necessary to reduce the screen aperture or slightly decrease the feed rate to ensure uniform particle size.

Q: What are the equipment's requirements for wheat moisture content?

A: It is recommended that the wheat moisture content be between 12-15%. Too low a moisture content results in easily broken flour, while too high a moisture content increases toughness and affects yield.