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Forming, pressing and laminating with vacuum

Forming, pressing and laminating with vacuum. Popular processes used in many sectors of industry and in manufacturing technology. To join a wide variety of materials together. Or to bring them into a specific shape.

Forming, pressing and laminating with vacuum

How does forming, pressing and laminating with vacuum work?

Vacuum is used in a wide range of forming, pressing and laminating applications in a variety of different branches. From flat panel display laminating to vacuum-assisted Resin Transfer Molding (RTM). And even in the production of rotor blades for wind energy plants, vacuum is indispensable.


When it comes to forming, it is important that a clearly defined vacuum is applied to draw the material gently into the mold. An established process used for many products is thermoforming. A proven method to shape plastic foils and sheets.


Pressing with vacuum is used in the woodworking industry. For example, when several layers of wood are glued together. Especially if mechanical pressing cannot be used because of the geometric shape. Furthermore, vacuum allows to attach veneers or to fix synthetics to wooden profiles. For example, onto kitchen fronts.


Lamination under vacuum is a common process for joining different layers of materials together. Mostly for semiconductors and in the electronics industries. It allows, for instance, to create solar modules, flat screens and smartphone displays.

Busch vacuum technology in forming, pressing and laminating with Vacuum

No matter which materials are formed, pressed or laminated. Busch offers the optimum vacuum solution to create safe, visually appealing, and long-lasting end products.
“We at Dreistegen are happy Busch customers and are impressed by the quality of the machines. “
Dr. Oliver Kayser, Owner of DREISTEGEN GMBH

Thermoforming Packaging

Thermoforming packaging of food
Thermoforming is a common process in various packaging applications to create packaging for foodstuffs and other commodities.

In thermoforming, plastic foils are heated to soften them. Vacuum is applied through the mold, and pulls the foil, which has been softened, into the mold. Once the foil has cooled down, it keeps its new shape. The products to be packaged can now be filled in.

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Thermoforming of plastics

Thermoforming of plastics
Thermoforming under vacuum can be used to shape plastic sheets of varying thickness. Therefore, it is a technique perfectly suited for the creation of all kind of plastic parts.

The plastic sheet is heated up in an oven until it is pliable. It can then be stretched into a mold using vacuum. Once brought into the desired shape, it keeps the specific shape of the mold. The thermoformed plastic part is trimmed and becomes a usable product. For example, a plastic toy, a surface part for the interior of a car or any kind of prototype part.

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Lamination and veneer pressing of wood

Laminating of wood panels
Vacuum can also be used to attach synthetic veneers to furniture surfaces. Or to laminate plastic surfaces onto preformed wood.

The aim of these applications is that the plastic coating or veneer fits perfectly and keeps this shape. Therefore, the right vacuum level and the choice of the perfect vacuum generator are extremely important to ensure that the coating is not damaged during the process.

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Solar panel lamination

Lamination under vacuum is an essential process step in the creation of solar panels.

To protect solar modules from stress and weather, the cells are enclosed between glass panes or foils. The laminating process, also called encapsulation, takes place under vacuum. The use of vacuum ensures that the air between the layers that are glued together is entirely removed. And thus ensures a long lifetime of the modules by preventing air bubble formation, delamination and cell breakage.

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