Precise sealing of primary packaging – cleanly and with no adhesive waste

Technology for the precise application of hot melt adhesive for sealing sachets, tubes, stick-packs and flow-packs. A hygienic bond with no overflow and stable quality even at high packaging line speeds – a solution for the food, pharmaceutical, cosmetics and confectionery industries.

  • 50+ years of industry experience
  • Authorised Robatech partner
  • In-house service and SOS line
Precise and fast primary packaging gluing

What you are dealing with

  • Overflow, drips and contamination of the packaging with adhesive – complaints, rejects and a worse first impression of the product.
  • Imperfect or leaky sealing of sensitive products (food, medicines, cosmetics).
  • Fluctuating bond quality and downtime at high packaging line speeds.

How Kaletech solves it

We supply technology for the precise application of hot melt adhesive for sealing primary packaging – precisely metered dots or beads directly onto the point to be bonded. The result is a clean, hygienic bond with no overflow that holds within seconds and withstands even a high line pace.

We will design the application technique to suit your packaging machine and provide integration, operator training and service. We will advise you on choosing a suitable adhesive.

Who the solution suits

  • Food industry
  • Pharmaceuticals
  • Drugstore & cosmetics
  • Confectionery

Key benefits of primary packaging gluing with hot melt adhesive

Hygienic sealing

A safe, clean bond with no contamination of the sensitive product.

No overflow or drips

Precise dot and line metering with no contamination of the packaging.

Fast curing

The bond holds within seconds – immediate packaging and onward handling.

Adhesive savings

Precise metering reduces adhesive consumption and costs.

Various materials

Films (PE, OPP), paper and laminates – a reliable bond on each of them.

Consistent quality at speed

A consistent bond even on fully automated lines with a high rate.

How it works and what technology is used

The principle is based on applying precisely metered dots or beads of hot melt adhesive onto the point of the packaging to be bonded. A melter with gentle heating also processes temperature-sensitive adhesives, a heated hose maintains a constant viscosity and the jetting head applies the bond quickly and repeatably with precision – with no overflow and high system availability.

  1. Application of precise adhesive dots

    The jetting application head applies micro-dots or a bead of hot melt adhesive precisely onto the point of the packaging to be bonded.

  2. Sealing the packaging

    The sachet, tube, stick-pack or flow-pack is sealed or folded and the bond forms within a few seconds.

  3. Controlled metering

    The control system monitors both the amount and the application pattern – adhesive is applied only where and when it should be.

  4. A clean and strong result

    A hygienic bond with no overflow, durable for storage and transport and gentle on the sensitive product.

Technology used

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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SpeedStar Compact electric jetting head

SpeedStar Compact electric jetting head

The fastest electric jetting head for intermittent hot melt adhesive application. Adhesive savings of up to 50 %. Ideal…

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Customer references

Rootvin
Rootvin

"Our company manufactures glued ice-cream cones. We currently have Robatech gluing equipment installed on 36 lines and, through ongoing modernisation, we are equipping others as well. Kaletech not only supplied us with these machines but has long provided us with spare parts and service. Our annual production is approximately 750,000,000 pieces. The production lines run 6 days a week, 24 hours a day. That is why we value the Swiss quality of the equipment." Milan Drastil Head of the Technical Department Rootvin s.r.o.

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.

Frequently asked questions

Primary packaging is packaging in direct contact with the product – a sachet, tube, stick-pack, flow-pack. It often provides the customer's first impression and, for food or medicines, protects the sensitive contents. Precise and clean sealing with hot melt adhesive is therefore decisive for the quality and hygiene of the whole pack.

Want to seal primary packaging cleanly and reliably?

Get in touch – we will design adhesive application technology to suit your packaging machine and ensure a hygienic bond with no overflow and low adhesive consumption.

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