Products · HOT-MELT coating lines

Coating lines based on HOT-MELT technology

We design and build complete systems for coating, lamination and application of HOT-MELT adhesives. We combine the right choice of application method, process precision and practical experience gained over many years of industrial work.

On this page we present the main application types — slot, spray and linear — in a professional way that is also clear to people who do not work with adhesive technology every day.

Video · 01
Line in operation and material handling in an industrial setup.
Video · 02
Application detail and how the material behaves in the process zone.
Slot · spray · linear application · process-driven lines
HM · 01REV · 2026.05
01 — Technology in plain terms

What exactly is HOT-MELT application?

In short, it is the application of a hot-melt adhesive in liquid form, after heating it to the right temperature. The adhesive flows from the melter to the application head and onto the material as a film, beads, dots or spray.

The technology catalogue makes it clear that in industrial practice there are three key families of solutions: slot application for a full adhesive layer, spray application for a lighter, partial coverage, and linear application for beads, dots and assembly patterns. To this you add a properly chosen melting system and stable material handling.

15+
years of experience
3
main application types
R2R
roll-to-roll work
100%
process-driven projects
02 — Competitive advantages

Why HOT-MELT wins in many applications

01

Fast process bonding

HOT-MELT adhesive does not require solvent evaporation or long drying. After application it quickly moves on to the next production steps.

02

Precise coat-weight control

We select the head, pump, temperature and material path so that the adhesive layer is stable, repeatable and cost-efficient.

03

One technology — many materials

HOT-MELT works in lamination, coating, spot application and joining of different substrates: foams, nonwovens, films, paper, fabrics and 3D parts.

04

Line designed for the product

We do not offer off-the-shelf configurations. Every line is tailored to a specific material, the expected throughput and how the finished product is to be collected.

shorter process time and fewer stops between application and further processing

lower adhesive consumption thanks to the right choice of application method and coat weight

very good quality repeatability in serial production

ability to run both sheet and roll-to-roll layouts

easier integration with conveying, cutting, lamination and product collection

design of complete lines based on many years of commissioning practice

03 — Application types

The main ways of applying HOT-MELT adhesives

This is where the biggest difference comes from — between a line that simply works and a line that runs stably, efficiently and delivers a predictable end result.

01

Slot application

for a full or near-full adhesive layer

The slot head contacts the material and lays down an even adhesive film across the full working width. It is the basic solution for coating and lamination processes where a uniform layer and very good repeatability matter.

  • roll-to-roll lamination
  • coating of foams and nonwovens
  • joining of multilayer structures
02

Spray application

for light, economical and partial application

Spray heads apply the adhesive without contact with the material. They create a fibrous structure or partial surface coverage, so adhesive consumption is lower and the material retains more flexibility and breathability.

  • materials with low heat resistance
  • perforated parts
  • items with irregular geometry
03

Linear / extruded application

for beads, strips, dots and broken lines

Linear heads deliver the adhesive as a continuous bead, dots or broken lines. It is an excellent solution wherever two materials need to be joined only in selected spots while keeping control of the application pattern.

  • packaging and assembly
  • joining of separators and seals
  • technological patterns on sheets and parts
04

Hot-roll application

for boards, perforated parts and fabrics

A heated roll applies a thin, uniform adhesive layer across the whole material surface in continuous motion. The method excels where full, homogeneous coverage is needed without flooding holes — especially with boards, perforated parts and fabrics with varying structure. Thanks to controlled coat weight and gentle contact with the substrate, the material keeps its properties and the adhesive lands exactly where it should.

  • boards and sandwich panels
  • perforated parts and meshes
  • technical fabrics and flexible materials
03 · Application samples

Real patterns laid down on the substrate

This is what individual HOT-MELT application types look like in practice — from a full slot film, through a fibrous spray structure, to beads, dots and broken lines from linear heads.

Material sample with a full HOT-MELT adhesive layer applied by a slot head
01 · Slot
Full adhesive film · slot application
Sample with two HOT-MELT spray bands in a spiral fibrous structure
02 · Spray
Spiral structure · spray application
Two parallel HOT-MELT spray bands on a dark substrate
02 · Spray
Continuous spray bands · economical coverage
Oval fibrous HOT-MELT spray spots on a substrate
02 · Spray
Spray dots · partial coverage
HOT-MELT broken lines laid down by a linear head
03 · Linear
Broken lines · linear head
Rows of HOT-MELT adhesive dots laid down by a linear head
03 · Linear
Adhesive dots · spot application
04 — Process galleries

Real machines, real parts, real implementations

HOT-MELT line with a conveyor and a melting unit
HOT-MELT application station · overview
Detail of an application head laying down a HOT-MELT adhesive line
Application head · process detail
Roll-to-roll material lamination layout
Roll-to-roll lamination · material handling
Compact HOT-MELT station for application and material take-off
Compact process line · configuration tailored to the part
Complete HOT-MELT line with an IdealTECH control cabinet and operator console
Complete HOT-MELT line · control cabinet and operator console
Film unwinder assembly with material handling in the HOT-MELT line frame
Film unwinder · material handling in the line frame
05 — Patterns and application quality

Not just the machine — the result on the material counts

In practice the customer judges a line by the end result: whether the layer is even, whether the application pattern repeats across the whole batch, and whether the material keeps its required performance.

That is why during design we focus not only on the mechanics of the line, but also on temperature control, feed stability, geometry of the adhesive path and the right material handling.

HM-01

Analysis of material and application goal

We check what is to be joined or coated, the working width, the coat weight, throughput and how the material is to be collected.

HM-02

Selection of head type and melting system

At this stage we choose slot, spray or linear application, the right melter, pump system and process control.

HM-03

Build, commissioning and optimization

We deploy a complete technological line, set process parameters and help you reach stable, repeatable production.

Example of parallel HOT-MELT adhesive beads on a material
Parallel adhesive beads · pattern control
Samples of parts with applied HOT-MELT adhesive
Samples and application patterns · process tests
HOT-MELT melter and equipment prepared for process commissioning
Melter and feed system · ready for operation
06 — Commissioning experience

Many years of experience means less risk on the customer side

Our advantage is not only machine building, but knowing how HOT-MELT adhesives behave in a real process. Thanks to this we reach the right parameters faster, predict material limitations more easily and pick the right line architecture more efficiently.

HOT-MELT line being commissioned during deployment
Line deployment and testing · commissioning stage
What does this give you in practice?
  • a more accurate technology choice right from the project start
  • fewer trials and corrections during start-up
  • better repeatability of parameters in serial production
  • safer commissioning for materials that demand precision
  • easier extension of the line with further process sections
07 — Cooperation

If you are planning a coating or lamination process — let's talk about a HOT-MELT line

We prepare solutions from single application stations up to complete technological lines with material handling, melting systems, application and take-off. We tailor the solution to the product, throughput and real working conditions on the shop floor.