Engineering

We have gathered product knowledge since 1975, from the many industries in which our solutions are a part of the production process. We produce equipment for dosing and weighing powders or granules in the food industry, chemical industry, pharmaceutical industry, energy industry and others.

Often there is a special need to take into consideration, which among others include:

Building measurements
Special properties of the powder or granules (forming bridge, adhesive, running lightly, hygiene requirements, ATEX etc.)
Dosing requirements
Control requirements for IT, transmitting, control unit
Data and documentation requirements

Food - Pharma - Biogas - Brick factories and many more...

Explore some of the projects and cases that TEKFA has worked with over time dealing with powder handling, including dosing, mixing, transport and weighing. We have selected a few but have quite a few to choose from after over 30 years working with powder handling. We have helped customers with powder dosing, powder transport and weighing solutions - both micro dosing and weighing, dust-tight emptying of bags, stand-alone dosing and weighing units, Big Bag emptying stations and filling stations, as well as complete turnkey powder mixing plants.

Products - Powders and granules

Within the food industry, we have worked with dairies around milk powder, ice cream and cheese mixes, producers of potato flour, jam factories, juice producers, producers of plant-based drinks and foods, spice mixes for liver pâté, dosage of sugar and wheat starch for marzipan – just to name a few. In many cases, there has been a great focus on ease of cleaning, use of EN 1.301/AISI 304 steel or EN 1.4401/AISI 316 steel, dust tightness, working environment and ergonomics.

In addition, we have also helped manufacturers of washing powder, road striping paint, egg trays, water supply companies, battery production, brick factories and container weighing to name a few.

Customized projects

Most projects include an element of customization– which we believe cannot be avoided. Here is an example of a typical system solution, where the customer has two bigbag discharge stations, a multi-micro-dosing of three different small components and a bag tipping unit. The conveying is in a vacuum string into two receiver cyclones. It should be mention that the customer in this project was a food producer and that considerations about hygiene played an important role.

The bigbag discharge unit feeds into the vacuum string via a rotary valve. Alternatively, in many cases, if a more accurate dosing is desired, a screw would be used.
The bigbag discharger is equipped with a rubber diaphragm (in this case of EPDM-rubber as the customer was a food producer). Through this diaphragm the bigbag’s nozzle ends tightly, thereby avoiding dust emission into the room. Moreover, it is cheaper to produce than a stainless-steel plate.

The small component weight is placed at the far left of the platform and is used for fine dosing. This is a unique solution, developed by Tekfa and sold all over the world. In this sanitary solution it is equipped with special nylon bearings. Nylon does not rust and therefore there is no risk of contamination.

The tipping unit is designed so that cleaning can be done all the way around when cleaning on the inside. The disadvantage is of course, that the tipping unit thereby is dimensioned a little smaller than one would do under other circumstances.

The cyclones at the far right was also customized. Usually the filter is placed at the top of a cyclone. A regular filter flush with compressed air, i.e. the powder from the filter is flushed off at the top and falls down into the bottom of the cyclone). With this customer, who produces baby food, there could be no risk of filter residue entering the material. Therefore, the filter is placed at the far left, from which there are discharge to a bigbag.

The facility has, of course, also got a control unit, which is not shown in the drawing. Tekfa provided both control and the last important component: software.

Tekfa’s software (or SCADA – Supervisory Control and Data Acquisition) is especially designed for handling and dosing of powder / granules. One of the key points of good dosage is that electronics and physics must integrate and support each other. And the procedures in those tasks are standard in Tekfa’s SCADA system, which we call TekfaVision.

Contact our sales department for a talk about the possibilities for your company, take a closer look at our System Engineering brochure and dive into some of the cases we have previously worked on here at Tekfa.

Test center

In Tekfa we have numerous test facilities, where we under different conditions can test our customer's powders and granulates. The test center include a vacuum transportation facility, a dense phase transportation facility (probably the biggest and most advanced in the Nordic countries) and different screw and vibration feeder solutions for transport and dosing.

Moreover, Tekfa has since its start in 1975 build an extensive database of previously tested products. This is a significant part of any project, as one otherwise easily can end up mis-engineering a solution.

Certificates

Tekfa delivers process equipment for use in the food industry in compliance with Danish and European legislation, including EHEDG standards, ISO 9001 and Regulation EC 1935/2004. In addition, we deliver production facilities in compliance with the ATEX 2014/34/EU directive. All our daily processes and work rest on the framework of our internal quality manual, which was written in accordance with ISO standards.

Tekfa is registered at the Danish regional food authority as an importer and manufacturer of materials/articles intended for contact with food as described in BEK 1356 about authorization and registration of food businesses etc. TEKFA has been awarded an Elite Smiley from the Danish Environment and Food Administration.