ALFRED NOLTE GmbH Better Technology Through Innovation: Beltdryer

ALFRED NOLTE GmbH plans, develops, manufactures, assembles and maintains systems and components for air, heat and air exhaust technology, innovative drying machines as well as machines for food processing.

Our company has existed for more than 70 years, is a family-run company and combines experience with innovative talent. The production of air-conditioning equipment is at the heart of what we do. One focus is on special designs and drying machines for high-quality foodstuffs. At the same time, our system engineering is being expanded on an ongoing basis.

Our range of products includes a large number of machines and equipment for the food industry. Dryers can have automatic cleaning equipment (CIP) fitted as an option.

All Nolte products are hygienically designed and FDA compliant.

In addition to quality, environmental consciousness is foremost in our thoughts and actions. We prefer to manufacture from stainless steel, use efficient components with low energy consumption and reduce the emissions of our dryers by using finely balanced and innovative cycle processes. This pays off: Our sustainably manufactured products are durable and run cost-effectively throughout their entire life cycle.

Our continuously operating belt dryers are used worldwide to thermally treat foodstuffs and other products. The comprehensive product range includes peanuts, hazelnuts, almonds, pistachios, macadamia nuts, cashew kernels, potato cuts, dumpling fillings as well as chicory and sugar beet crisps. Naturally, our drying systems can also be used for other natural or technical products.

Thanks to our many years of experience, we design our systems very carefully and manufacture them to high quality standards. Air heaters, cooling and fans are integrated into the housing of our dryers. In everyday operation, they prove to be a reliable, low-maintenance and cost-effective “workhorse”.

We fit our belt dryers with the appropriate belt type depending on which product you want to treat. Belt widths between 1,200 and 3,000 mm are available. We manufacture your system in corrosion-resistant or especially saltwater-resistant stainless steel. When used as a dryer, the required temperature can be generated by means of an electrical air heating system.

Our systems are directly or indirectly heated using electric, gas or steam power. Depending on the configuration, they produce temperatures of 20° C to 250° C. Heating and cooling can also be carried out on the same level without mechanical reloading. Since the drying air is fed alternately from above and below, the roasting result is particularly even. Depending on the product, treatment time and size, our systems have a drying capacity ranging from 500 to 10,000 kg per hour. Production is in 2 m segments, single or two part, which is particularly beneficial when loading trucks.

We produce dryers between 7 and 40 m length. We can also combine them to make longer systems.

We would be pleased to tailor a system to meet your requirements and the space available at your premises. All the systems have a convenient control system which is set up according to your wishes. In addition, we supply or obtain many ancillary products, such as cooling air ducting, drying extraction air ducting and cleaning (thermal, catalytic or biological), silos and conveying systems.

In the production there is a high interest in a cost-effective execution of the cleaning process, in order to use the machines quickly productive again.

The equipment can be installed when ordering a new system, or our experts can retrofit it to existing systems. The benefits are: Considerable time saving in cleaning and a better cleaning result while saving energy, cleaning agents, personnel costs and water. The time required to completely clean your belt conveyor can be reduced to a maximum of 1.5 hours. Consumption of detergents can be reduced by 70 per cent. Our reference project is a continuously operating belt dryer with a product output of 2,000 kg per hour.

Ergonomics and working safety are also significantly improved with the help of CIP systems. Cleaning is carried out automatically at the push of a button and the employee remains outside the machine. Several safety devices protect the operator and the environment against unwanted contact with the cleaning agents. Foam, tap water and compressed air are used for fully automatic cleaning.

Individual cleaning programs can be selected for automatic operation. The foam consistency, the spraying and reaction times and the number of repetitions are freely adjustable depending on the degree of contamination. In addition, there is a separate program module for cleaning the belt. The machine also allows Sterilisation In Place (SIP), because the use of disinfectants is straightforward.

All our machines and systems, including the controls, are designed and manufactured individually for our customers. All our machines and systems feature our special productive solution for the customer, easy handling and high reliability as well as longevity. From initial concept to individual production, to regular maintenance or technical upgrades – we work out the solution together with you.

ALFRED NOLTE GmbH is customer and service oriented in everything they do. With us, reliability, flexibility and friendly, open communication are a matter of course.