Precise, reliable and repeatable hot melt gluing for the automotive industry

Robatech application systems for interior parts, insulation, lamination, headlights and assembly applications in automotive, where a process outage or a reject piece is not acceptable.

Automotive production – hot melt gluing of interior components
  • 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 automotive

Thermal and acoustic insulation

Lamination of thermally and acoustically insulating materials for floor panels, the engine compartment and the roof lining. Coating application of adhesive ensures full-surface adhesion with no air pockets.

Film lamination and surface finishing

Continuous coating application of adhesive onto films, textiles or non-woven fabrics – a precise layer thickness and a repeatable application even at high production speeds on calenders or roller lines.

Headlights and tail lights

Precise bead application of hot melt adhesive or sealant for a watertight and vibration-resistant assembly of the plastic and glass parts of light fittings.

Body seals and car body sealing

Application of butyl or polyurethane sealant from 20 l or 200 l drums for sealing the car body, grommets and panels. RobaDrum drum unloaders enable the processing of sealants with no interruption to production.

Fixing components and wiring harnesses

Dot or bead dosing of hot melt adhesive for fixing wiring, sensors, mounting badges, rear-view mirrors and other exterior and assembly parts directly on a robot or at an automated workstation. Volta electric heads enable intermittent application (stitching) with high repeatability.

What you're dealing with

  • Automotive production allows no deviations – every part must have an identical adhesive application, otherwise there is a risk of complaints, recalls and supply outages. A reject rate from incorrect adhesive application is a direct loss.
  • Production lines are fully automated and robotised – the application system must communicate with the PLC via Profibus or Profinet, synchronise the start and stop of application with the movement of the part and monitor adhesive consumption in real time.
  • Different applications require different types of adhesive (PUR, PO/Metallocene, polyamide, sealants, butyl) as well as different types of application (bead, spray/swirl, coating) – designing a reliable platform for an entire plant is complex.

How Kaletech solves it

Robatech systems cover the entire spectrum of automotive applications: from dot dosing of adhesive at a robotic workstation through swirl spray onto shaped interior parts to coating application onto insulation materials. The choice of the right application head (SX Diamond, AX Diamond/Delta, Volta, Aero, FKV) and melter (Canduro 2, JumboFlex, RobaDrum) depends on the type of adhesive, the shape of the part and the line speed – which we always assess during the application analysis.

For reactive PUR adhesives we use Melt-on-Demand technology – only as much adhesive is melted as the line consumes at the given moment, and the PUR is not needlessly heat-stressed. The result is stable adhesive properties even during long production cycles and a lower risk of degradation. For high-capacity applications with drum sealants or butyl, RobaDrum drum unloaders ensure continuous operation even during a drum change.

The Robatech Control System (RCS) control platform enables connection to a higher-level PLC via Fieldbus (Profibus, Profinet) and monitors adhesive consumption in real time – too little application signals a risk of a poor bond, while increased consumption alerts you to a potential overflow or wear of a component.

How it works and what technology is used

Robatech technology for the automotive industry integrates a melter, a heated Performa hose and an application head into a controlled unit synchronised with the production line. The platform is designed for automation: starting, stopping and regulating the application respond to a signal from the PLC or robot, so the operators do not intervene in normal operation. The key is selecting the right combination for the specific application – the type of adhesive, the shape of the part, the line speed and the application method (dot/bead, spray, coating) define the configuration.

  1. Selecting and preparing the adhesive

    The type of adhesive determines the melter: reactive PUR hot melt is processed in a Canduro 2 or by RobaPUR using Melt-on-Demand technology (only the required amount is melted, the rest remains in a protective atmosphere). Thermoplastic hot melt granules (PO, EVA, PA) are melted by a JumboFlex or Vision. Sealants and butyl from drums are processed by RobaDrum 20 or RobaDrum 200 unloaders.

  2. Transporting the adhesive to the application point

    The heated Performa hose maintains a stable temperature and viscosity of the adhesive from the melter all the way to the application head – even over long distances or in a robotic arm. Stable pressure and temperature are a prerequisite for a repeatable application part after part.

  3. Precise application with the application head

    The choice of application head depends on the type of application: SX Diamond for fast dot or short bead applications, AX Diamond / Delta for robots and continuous bead application, Volta for electrically controlled intermittent dosing (stitching) with high repeatability, Aero heads for swirl spray onto irregular and shaped parts, FKV coating heads for coating application during lamination.

  4. Integration with the line and process monitoring

    The RCS control system communicates with a higher-level PLC via Profibus or Profinet and synchronises the start and end of application (cut-off) with the movement of the part. Integrated measurement of adhesive consumption monitors the process in real time – a deviation from the set limit triggers an alert before a reject piece is produced.

Technology used

Volta - application head for hot melt adhesives

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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Melter for PUR Adhesives – Robatech Canduro 2

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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Robatech JumboFlex Melter

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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Vision – the most advanced melter

Vision – the most advanced melter

Vision is a smart unit for melting thermoplastic adhesives, enabling high-quality, precise hot melt adhesive application…

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Performa – heated hose for highly precise application of hot melt adhesive

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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Real-world results

Case study: Efficient and reliable bonding of battery covers for electric vehicles

Case study: Efficient and reliable bonding of battery covers for electric vehicles

Teijin Automotive Technologies Czech s.r.o. has optimised the bonding of battery covers with Robatech technology. Effici…

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Automation of adhesive application measuring detection

Automation of adhesive application measuring detection – we already know how to do it

How we handled the requirement for automated measurement of adhesive application for upholstery on car door panels.

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Application of hot-melt adhesive for rear car seats

Application of hot-melt adhesive for rear car seats

The control unit communicates with an industrial robot and applies the adhesive in the precise quantity and in the requi…

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Customer references

Teijin Automotive Technologies Czech | Lukáš Mildorf, CTO
Teijin Automotive Technologies Czech | Lukáš Mildorf, CTO

„Working with JHV and Kaletech allowed us to reach a high level of quality and efficiency. We are satisfied not only with the technology but also with the support and service, which is crucial in our field."

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

  1. Inquiry and consultation

    Get in touch and tell us what and where you glue. We will discuss your operation and goals with no obligation.

  2. Application analysis

    We assess the materials, the line speed and the requirements for the bond. We recommend a suitable technology and adhesive.

  3. Design and test

    We design the configuration and verify it with a test on your materials – often in our testing centre.

  4. Installation and training

    We install the system, integrate it into the line and train the operators and maintenance staff.

  5. Service and support

    We provide spare parts, preventive service and an SOS line throughout the entire operation.

Frequently asked questions

Automotive production requires an identical application part after part – otherwise there is a risk of complaints and supply outages. Robatech systems allow you to set adhesive consumption limits per product: if the application is too small or too large, the RCS control system immediately alerts the operator or stops the line – before a reject piece goes to assembly.

Interested in a solution for automotive?

Get in touch – we will assess your application (type of adhesive, line speed, type of part) and design an application system precisely for your operation. With no obligation.

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