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Webac GmbH Gesellschaft für Maschinenbau

Roitzheimer Str. 180, 53879 Euskirchen
Telephone +49 2251 9460-0
Fax +49 2251 9460-49

Hall map

GIFA 2019 hall map (Hall 17): stand C59

Fairground map

GIFA 2019 fairground map: Hall 17

Our range of products

Product categories

  • 01  Foundry plants and installations, planning, construction, engineering

Foundry plants and installations, planning, construction, engineering

Our products

Product category: Foundry plants and installations, planning, construction, engineering

Webac Sandmixer

Well–prepared sand can only result from the optimal mixing together of sand, water, bentonite, and other additives. Every grain of sand must be surrounded by bentonite.

The advantages of the Webac Sandmixer are:

  • the effective dosing of additives
  • optimum dosing of water via the abrasive base
  • addition of the additives (bentonite, coal dust, new sand etc.) by injection of binders into the sand bed
  • gentle handling of the sand grains through a kneading action
By applying a rubber coating as a lining for the mixer, and through the kneading action of the mixing wheels, which are also rubber-coated, an optimum coating of the sand grains with bentonite is achieved. This is an extremely protective type of preparation. The ploughs fixed to the crosshead ensure that the sand is mixed efficiently.

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Product category: Foundry plants and installations, planning, construction, engineering

Binder injection BI

To improve the effectiveness of the mixer, binder injection has been implemented. To begin with, the components to be dosed are automatically weighed according to the chosen recipe, and are loaded into the injector. The binders are blown into the sand bed according to the mix cycle.

The binders are distributed directly and evenly in the sand without any dust creation whatsoever. The bentonite penetrates directly into the moistened sand. After it has been activated by the uptake of water, the bentonite surrounds the individual grains of sand.

New Webac Sandmixers are in principle always supplied with binder injectors. But older mixers can also be fitted with binder injection to improve efficiency.

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Product category: Foundry plants and installations, planning, construction, engineering

Return sand cooler

In addition to the Webac Sandmixer, the return sand cooler is a key component of sand preparation. The moisture content and temperature of moulding sand are decisive criteria for the behaviour of sand during the moulding process. Temperature reduction takes place in the return sand cooler. In addition, the moisture content is adjusted to the optimum value for reactivation in the return sand bunkers.

To achieve this, various processes take place in the cooler:

  • Transportation and mixture of the sand
  • Moistening of the sand
  • Evaporation of the cooling water
  • Absorption of the water vapour

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About us

Company portrait

Your satisfaction is our goal!
Over more than 50 years, Webac has acquired a reputation as a reliable partner in the foundry industry.

The focus of our business activity is the satisfaction of our customers. The relationship of trust between our customers and us begins in advance of any order.

We rely on expert advice in order to present customized solutions. These solutions are implemented, according to the specifications with the utmost care and expertise.

For this purpose, we have a specialist team, aware of every detail of our machines and equipment, who can be relied upon to fulfil any task required.

Our goal is to offer our customers everything from one source, including consulting services, planning and execution, as well as the proposed plant and machinery. All our machines and plants are key components of our in-house designs and are built in our workshops.

Even after the order processing, we provide our customers with any help and advice they require. We respond promptly to customer needs, and we can offer our customers in this field a high degree of flexibility in both planning and execution.

Our goal is to provide customer satisfaction in every respect.