Processes and Conches Chocolate and Confectionery Products

The Next Generation Refiner/Conche from Hamburg Dresdner Maschinenfabriken is a versatile equipment designed to revolutionize chocolate and confectionery production. This all-in-one unit seamlessly integrates the processes of grinding, mixing, refining, and conching, crucial for producing homogeneous mass in chocolate production. Equipped with a specially designed shaft and adjustable grinding bars, it ensures consistent quality across batches. Ideal for creating a wide array of products—from milk chocolate bars and pralines to ganache and nougat fillings—this machine serves chocolate manufacturers and compound producers seeking precision and efficiency.

With model capacities ranging from 500 to 2000 kg (RC500, RC1250, RC2000), it caters to both batch and semi-automatic operations. The PLC-controlled system enhances automation, offering detailed process control via a user-friendly touch screen. Energy efficiency is optimized with an IE3 electric motor and temperature-controlled immersion heating. Constructed with durable materials, it promises minimal maintenance and easy cleaning, thanks to its hygienically closed design. Optional features, such as a shear attachment for low-fat processing, further bolster its adaptability to specific production requirements. Embrace this engineered solution for reliable and efficient chocolate processing challenges.

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Classifier mill for superfine grinding and classifying process

The Impact Classifier Mill ICX by NEUMAN & ESSER is suited for dry grinding by combining extra-fine grinding with high-precision classification in a single assembly. During grinding, rapidly moving grinding tools convey feed materials into the liner at variable speeds and crush them. The integrated classifier separates coarse particles carried via airflow. Coarse materials rejected from the classifier re-enters the grinding zone for further reduction. The ICX can achieve particle size top cut from 5 µm to 50 µm. It also enables high throughput rates with high energy efficiency and the capability to process mill capacities ranging from 10 kg/hr to 20,000 kg/hr.

The direct drive uses a VFD-controlled motor; this avoids using a gearbox and oil supply in the rotor. As a result, the ICX can provide easy operation, low maintenance, and low energy consumption by using this design.

When grinding potentially explosive dust such as carbon black, a pressure shock-resistant classifier mill is pressure-resistant up to 11 bar. The NEA ICX is also compatible, and other ATEX-compliant systems can be attached to it.

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Mill for fine grinding and drying of soft to medium-hard minerals

The Pendulum Mill PM by NEUMAN & ESSER is a roller mill used for fine grinding and drying soft to medium-hard materials such as clay, bentonite, limestone, and many other minerals. It is a robust and durable design of combined grinding, de-agglomeration, drying, and classifying system.

The mill consists of a sturdy cast, mill housing, and a rotor with a crosshead. The grinding roller travels on the rings, whose centrifugal action against the grinding ring reduces the minerals into finer sizes. Rotating shovels guide the particles from the mill bottom to the grinding zone. The air system then transports the ground particles to the classifier, where it rejects coarse particles and sends them back to the mill for further grinding. The speed of the classifier can be adjusted to meet the required particle size and distribution. Finally, a downstream collector receives the particles with the necessary final degree of fineness.

The Pendulum Mill PM can achieve narrow particle size distribution with an upper particle size ranging from 10 μm to 1,000 μm (1,250 to 18 mesh). The mill capacity ranges from 0.5 t/h to 150 t/h and can process up to 35% humidity material.

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Mill for grinding and drying soft to medium minerals

The Pendulum Mill PM by NEUMAN & ESSER is a roller mill used for fine grinding and drying minerals such as bentonite, clay, limestone, and others. It combines grinding, de-agglomeration, drying and classifying, making it an extremely robust and durable design.

The mill consists of a sturdy cast, mill housing, and a rotor with a crosshead and pendulums whose rollers run against a grinding ring crushing the bentonite material into fine sizes. Air transports the materials to the grinding zone through channels and rotating shovels. Both fine and coarse particles enter the classifier, where it separates coarse particles and sends them back to the mill for further grinding. The classifier speed can be adjusted to meet the requirements that come with the desired particle size distribution. Finally, the downstream collector receives the particles with the required final degree of fineness.

The Pendulum Mill PM can achieve upper particle sizes ranging from 10 μm to 1,000 μm (1,250 to 18 mesh). The various mill capacities can receive input quantities ranging from 0.5 t/h to 150 t/h and process feed material moisture of up to 35%.

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Classifier mill to grind brittle material dry, free-flowing, and fine powders

The Impact Classifier Mill ICM by NEUMAN & ESSER is designed for grinding brittle material to superfine particles such as materials for powder coatings. It combines efficient impact grinding and precise classification technology. During impact grinding, grinding tools throw feed materials into the liner and crush it. The classifier separates coarse particles and sends them back to the mill’s grinding zone for further grinding. It effectively achieves grinding cuts and narrow particle size distribution of 20 μm to 1,000 μm. The throughput of the various mill sizes and designs can range from 10 kg/hr to 20,000 kg/hr. In addition, the large grinding chamber has cooler temperatures that result in lower fines generation.

The ICM employs direct drive technology, a type of permanent-magnet synchronous motor. It removes using a gearbox and oil supply in its rotor, making the mill easy to operate and clean. In addition, the mill is pressure shock resistant up to 11 bar, a must when grinding for powder coatings.

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