Pneumatic Roller Mill For Wheat And Maize(410+) - Alibaba.com

Types of pneumatic roller mill for wheat and maize

A pneumatic roller mill for wheat and maize is available in various types to meet different milling requirements. Here are some of them.

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• Double Roller Mills

  Double roller mills are the most common type of pneumatic roller mill. They utilize two parallel rollers to crush and grind the grain. The top roller is usually grooved or textured to grip the grain, while the bottom roller is smooth. As the grain passes between the two rollers, it is crushed and its endosperm is scraped off by the smooth bottom roller. Double roller mills can be used individually or in pairs, and they are effective at breaking down wheat and maize into fine flour.

• Multi-Roller Mills

  Multi-roller mills consist of multiple pairs of rollers set up vertically. The grain is passed through several pairs of grooved and smooth rollers, providing more opportunities for extensive crushing, grinding, and separation of bran, germ, and flour. Multi-roller mills are the backbone of modern milling operations, as they allow for efficient milling and high extraction rates of flour. Super fine flour with excellent baking qualities can also be produced. The only downside is that multi-roller mills are more extensive, and their maintenance requirements are higher.

• Mini Roller Mills

  Mini roller mills are compact milling systems designed for small-scale production. They are ideal for rural communities and small farmers who want to process their grain locally. Mini roller mills take advantage of lower production costs and offer an affordable solution for milling wheat and maize into flour for bread, porridge, and other staple foods. Although they may not have the same capacity as larger mills, mini roller mills can provide a valuable service to local communities.

Specifications & maintenance of pneumatic roller mill for wheat and maize

The specifications of a pneumatic roller mill for wheat and maize vary depending on the manufacturer and model. The following are the general specifications and their corresponding maintenance requirements:

• Capacity

  The amount of product processed per unit time. Some models process 300-500 kg per hour, while others can reach - kg. It's important to regularly check and adjust the speed of the roller and the air flow volume to maintain optimal capacity. Pay attention to the amount processed per time and avoid over-processing to maintain stability.

• Roller diameter and length

  These affect the amount of grinding and the quality of the flour. Common sizes include 250-400 mm in diameter and 600- mm in length. Regularly check the surface condition of the rollers, and repair or replace them if they are damaged or worn. Maintain proper cleaning and lubrication of the rollers to avoid clogging and ensure an even grinding effect.

• Power

  The driving power of the mill is typically between 5-30 kW. Ensure that the power supply and connections are stable and reliable to avoid sudden power cuts or damage. Regularly inspect the electrical components such as motors and lines, and clean them to avoid electrical hazards.

• Dimensions

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  The overall size of the mill. It should be properly installed and fixed to avoid movement or instability during operation. In case of necessary relocation, proper fixing should be employed to ensure stability after installation.

• Material

  Parts such as rollers and bearings are made of materials with suitable wear and corrosion resistance. Regularly check the connections and seal of the milling compartment to avoid leakage or exposure. Use the appropriate sealing materials and fittings for maintenance.

Usage scenarios of pneumatic roller mill for wheat and maize

Pneumatic roller mills have diverse applications in various industries, particularly in food processing, feed production, and specialty milling sectors.

• Flour production: The primary application of pneumatic roller mills lies in milling wheat and other grains to produce flour for bread, pastries, and diverse baked goods. The precise grinding methods of roller mills guarantee that the flour created contains the correct gluten levels and is appropriate for baking.
• Cereal milling: In addition to wheat flour, pneumatic roller mills are also used to mill other grains like barley, rye, and oats into flour or meal. These alternative grain products can be employed as components in cereals, baked goods, and other food items.
• Semolina and grits production: Pneumatic roller mills are used to mill durum wheat into semolina, the primary ingredient in pasta and couscous manufacturing. Additionally, they can process maize to produce grits, which are staple components for breakfast cereals and hominy.
• Meat feed production: Feed mills also use roller mills to help process grains for animal feed. Roller mills can efficiently grind maize and wheat into a form suitable for livestock consumption. Incorporating ground wheat and maize into livestock feed aids in the creation of poultry, swine, cattle, and other livestock products that ultimately reach human consumers.
• Rice flour and starch milling: Some more specialized milling facilities may employ pneumatic roller mills to process rice into flour or to extract rice starch for use in food production, pharmaceuticals, or other industrial applications.
• Specialty flour production: Aside from milling wheat, roller mills are also used to grind other grains such as barley, rye, oats, rice, and millet. Furthermore, they are employed to mill pseudo-grain crops like quinoa and buckwheat. Specialty grains and pseudo-grains yield flours with distinct flavors, textures, and nutritional profiles. These flours can be used for gluten-free baking or to create artisanal products catering to niche markets.
• Malt processing: Malt houses utilize pneumatic roller mills to crush malted barley and other grains formerly used in brewing and distilling industries. The milling process breaks down the grain's structure, allowing fermentable sugars to be released and utilized in the production of alcoholic beverages such as beer and whiskey.

How to choose a pneumatic roller mill for wheat and maize

There are several factors to consider when purchasing a pneumatic roller mill for wheat and maize. Among them are the flour milling plant's capacity, the final products, advanced features, installation, and after-sales support.

The first step is to define the desired milling capacity, which is typically expressed in tons per 24 hours. Buyers can find small to large-scale roller mills on the market鈥攁nything from a few hundred kilograms to over a dozen tons. Consider the available space in the milling plant, as well as the budget and flour demand from the target customers, when deciding on the milling capacity.Given that flour quality is the main reason customers make a purchase, it is essential to choose a roller mill that produces the desired flour type. Roller mills differ in their ability to process grains and achieve specific flour extraction rates. Advanced features distinct some roller mills from others. Look into the milling machine's automation, precision, and efficiency. Some models have digital controls, air classifiers, and temperature regulation systems for better milling results.Consider the required level of grain milling equipment installation. Manufacturers often provide detailed manuals, but some buyers prefer to have the manufacturer come to the installation site for assistance. Consider the quality of service provided by the manufacturer and the availability of spare parts when choosing a milling machine. Ask about the warranty period and the manufacturer's support during and after the warranty period.

Pneumatic roller mill for wheat and maize Q & A

Q1: Which is better between the hammer mill and roller mill?

A1: Roller mills are generally more energy efficient and quieter than hammer mills. They give a more precise and controlled particle size reduction. Roller mills also produce less heat and dust. However, hammer mills handle a wide variety of grains. They also have a lower initial cost than a roller mill.

Q2: How many tons per hour can a roller mill process?

A2: A large, well-optimized roller mill can process 6 to 8 tons of grain per hour to make flour.

Q3: How many mills are in a milling plant?

A3: An average milling plant has about 10 roller mills arranged in a sequential way. The first few roller mills break the grain, and the rest, around which there are sifting units, return the flour.

Q4: What are the main steps in milling grain?

A4: First, the grain is cleaned to remove any foreign material. Then, it is pre-conditioned by adding a small amount of water. Next, it is passed through the roller mills to break it. Finally, the flour is extracted, and the coarse particles are retrained to be milled further.

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