Gluing technology for construction materials
Precise industrial gluing of construction boards, panels and insulation – with no air pockets
Robatech application systems for laminating construction boards, gluing insulation panels, profile wrapping and roofing applications – for manufacturers of construction materials, where an even application across the full width of the material determines the quality of the thermal insulation.
- ExclusiveRobatech partner for the Czech Republic
- 50+ yearsin the industry
- Our owntesting centre
- 24/7service and SOS line
Selected customers from the industry
Where we help in construction materials production
Lamination of construction boards
Coating or strip application of hot melt for bonding a film, aluminium or paper layer to plasterboard, mineral wool, PIR and PUR boards. An even application across the full width of the board (up to 2,600 mm) with no air pockets and no overflow at the edges.
Gluing of insulation and sandwich panels
Precise adhesive application for bonding insulation layers (PIR, PUR foam, mineral wool) to the facing of a sandwich panel. Even adhesion across the whole surface ensures the thermal-insulation properties of the bond with no air pockets.
Wrapping of construction profiles and mouldings
Continuous application of hot melt for wrapping plastic and wooden construction profiles, window sills and mouldings with film. A precise adhesive layer along the entire length of the profile with no overflow and an aesthetically clean product surface.
Roofing membranes and floor insulation
Dot or bead application of hot melt for fixing roofing membranes to the substrate or joining thermal floor layers. The fast setting of hot melt allows immediate adhesion with no pressing and no waiting time.
Transport fixing of construction materials
Dot or bead dosing of hot melt for fixing construction boards and insulation panels during transport and handling. Quick adhesion and easy separation on delivery – an alternative to mechanical clamps.
What you're dealing with
- Construction boards (plasterboard, mineral wool, PIR) come in large formats with an uneven or porous surface – an even adhesive application across the full width of up to 2,600 mm with no air pockets is a prerequisite for functional lamination and for the thermal insulation of the bond.
- Hot melt overflow at the board edges or under the film fouls both the machine and the product and causes cosmetic defects or line stoppages – a precise coating cut-off and application-width control are the basis of a clean operation.
- Reactive PUR adhesive for structural applications must be processed without a premature reaction – the Melt-on-Demand system melts only the amount needed, while the rest of the PUR stays in a protective atmosphere with its properties unchanged.
How Kaletech solves it
For lamination of construction boards we deploy powerful Robatech JumboFlex melters with coating heads for widths up to 3,200 mm. An even layer of hot melt across the whole board surface ensures firm adhesion of the film or facing with no air pockets and no overflow onto the line edges.
For reactive PUR bonds (structural wooden elements, CLT, moisture-resistant bonds) we work with Melt-on-Demand Canduro 2 technology – the PUR adhesive is melted only at the moment the line consumes it; the remaining adhesive in the tank stays inactive in a protective atmosphere. The result is bonds with D4 resistance and stable adhesive properties even during long production cycles.
For profile wrapping, membrane fixing and transport applications we design compact configurations with Volta or Aero application heads – precise bead, dot or spiral application wherever it is needed, synchronised with the line PLC.
How it works and what technology is used
Robatech technology for construction materials integrates a melter, a heated hose and an application head into a controlled unit synchronised with the production line. For coating lamination of boards, powerful JumboFlex melters with coating heads for large widths – up to 3,200 mm – are used. For reactive PUR adhesive, the Melt-on-Demand system with Canduro 2 prevents a premature reaction. For profile wrapping and smaller applications, compact units with precisely controlled heads are suitable. The RCS control system or a direct PLC connection synchronises the start and end of the application with the movement of the material.
Choosing the adhesive and technology
For board lamination, a thermoplastic EVA or polyolefin (PO) hot melt is chosen – an even coating application, instant setting and good adhesion to paper, film and aluminium. For structural bonds of wooden elements, a reactive 1C PUR hotmelt processed with Melt-on-Demand technology is chosen. For dot transport fixing or profiles, a compact hot melt system with a precise nozzle or slot head is sufficient.
Melting the adhesive and a stable feed
A powerful JumboFlex melter (50 or 100 l) provides a sufficient adhesive feed for coating lamination applications with high consumption. For PUR adhesive, the Canduro 2 works in the Melt-on-Demand system – only as much is melted as the line currently needs, with a protective atmosphere preventing a premature reaction. The heated Performa hose keeps the temperature and pressure of the adhesive stable from the unit all the way to the application head.
Precise application at the application head
Robatech coating heads (widths up to 3,200 mm) apply an even layer of hot melt across the full width of the construction board. For profile wrapping and bead applications, electric Volta heads with a precise cut-off are suitable. The Aero head enables a spiral spray of hot melt for fixing insulation layers with no soaking into the material.
Synchronisation with the line and cut-off
The control system (PLC or RCS) synchronises the application with the movement of the board or profile on the conveyor. A precise start and stop of the application prevents hot melt overflow outside the bond. Connection via standard Fieldbus protocols (Profibus, Profinet) ensures integration into the existing line layout with no major structural modifications.
Technology used
Robatech JumboFlex Melter
JumboFlex is a powerful Robatech melter with a capacity of 50 or 100 litres. Flexible use as a buffer, pre-melter or mel…
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Melter for PUR Adhesives – Robatech Canduro 2
The modular Canduro 2 melter for PUR adhesives with melt-on-demand technology, low maintenance requirements and reliable…
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Volta application head
Thanks to its design, it is durable and protected against external influences with IP55 protection. With Volta you save…
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Performa – heated hose for highly precise applications
Heated hoses for hot melt adhesives have a significant influence on how reliably and precisely products are glued.
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Aero spray head
The Aero spray application head guarantees high-quality, repeatable coating application of adhesive in the form of a spi…
More informationReal-world results
Gluing of ground AKU bricks with soundproofing
Saving time, space and production costs by choosing a better adhesive and optimising the process.
Show case study
Retrofitting of a fifty-year-old formwork machine
Thanks to the solution from Kaletech, the customer saved the costs of constructing a new production line.
Show case studyCustomer references
„The aim was to replace the manual gluing of ironing boards with a faster and more economical solution – and that succeeded. Robatech supplied complete gluing equipment thanks to which we saved a quarter of the costs on both adhesive and production staff. I believe the cooperation will continue on further Leifheit projects."
Why solve your gluing challenge with Kaletech
50+ years of industry experience
We build on the development of Swiss Robatech (since 1975) and our own practice on the Czech market since 2004.
Authorised Robatech partner
The exclusive supplier of Robatech technologies for industrial gluing.
In-house service and parts
A service team, spare parts in stock and an SOS line.
Free consultation
We will design a tailored solution and fine-tune it directly in your operation.
How the collaboration works
Inquiry and consultation
Get in touch and tell us what and where you glue. We will discuss your operation and goals with no obligation.
Application analysis
We assess the materials, the line speed and the requirements for the bond. We recommend a suitable technology and adhesive.
Design and test
We design the configuration and verify it with a test on your materials – often in our testing centre.
Installation and training
We install the system, integrate it into the line and train the operators and maintenance staff.
Service and support
We provide spare parts, preventive service and an SOS line throughout the entire operation.
Frequently asked questions
Robatech offers coating heads with an application width of up to 3,200 mm. An even layer of hot melt across the full width of the board is a prerequisite for functional lamination – with no air pockets and no overflow onto the edges. We set the exact layer thickness and application width according to your material and the required adhesive consumption. We will recommend the specific head and melter after assessing your operation.
Do you manufacture construction materials or insulation panels?
Get in touch – we will assess your application (board type, material width, line speed) and design an application system precisely for your operation. With no obligation.
- +420 732 469 082
- info@kaletech.cz
- SOS service: +420 736 443 247