Material preparation & supply systems

For material preparation and supply, mta robotics offers flexible solutions to ensure high quality of the dispensed material.

Whether with polyurethanes, epoxy resins, silicones, greases or other fluids, it is often necessary to prepare the materials before processing. This is mainly due to sedimentation, air bubbles or dissolved air in the material. Thanks to mta’s extensive experience in dispensing processes and automation, we offer the right technical solutions from supply to preparation of the dispensed material.

The types of preparation mainly include degassing and homogenization.

Degassing

When the material contains air bubbles and dissolved air, it can be degassed via vacuum.

In order to supply the degassed material to the subsequent dispensing technology, the use of compressed air would be counterproductive, as this would lead to air inclusions or, when using silicones, to air saturation. Therefore, the mta CFD continuous flow dispenser, based on progressive cavity pump, is used to extract the material from the supply tank.

Additionally, a pump is used to recirculate the material after longer shutdowns, without vacuum application, via a bypass line, thus preventing potential problems.

Homogenization and degassing

For filled products, it is necessary to homogenize the material while eliminating air bubbles. To achieve this, the mta systems allow to mix and degas the material in parallel. The combination of these two processes guarantees a homogeneous product free from air.

For the supply to the dispenser, several options are proposed from the tank to one of mta’s CFD or NVD dispensers.

For low-viscosity materials, the tank outlet is positioned above the dispenser to allow gravity flow.

Pressurized tanks are used for low to medium viscosity materials. These tanks are pneumatically pressurized, enabling the fluid to reach the dispenser.

For high-viscosity fluids and filled materials, a supply pump is installed under the tank. If pressure losses are high, the installation of this pump is necessary, e.g. when the distance between the material preparation unit and the dispenser is long, or if the inlet pressure to the dispenser is high.

Shipping costs incl.

  • Contact lenses
  • Industry: pharma
  • Application: production of contact lenses
  • Process: dispensing of monomer

  • Furniture damper
  • Industry: household appliances
  • Application: Filling of a furniture damper
  • Process: dispensing of mono-component silicon oil

  • Sensor
  • Industry: automotive
  • Application: selective conformal coating of a sensor
  • Process: globtop dispensing of two-components Epoxy

 

 

 

 

 

 

 

 

 

 

  • Electronic box
  • Industry: automotive
  • Application: sealing of an automotive electronic box
  • Process: dispensing of mono-component silicon beads

 

Volumetric dispensing solutions

PDF – mta_volumetric_dispensing_10.2017 / 7.5 mb


Application examples

  • Contact lenses
  • Industry: pharma
  • Application: production of contact lenses
  • Process: dispensing of monomer

  • Furniture damper
  • Industry: household appliances
  • Application: Filling of a furniture damper
  • Process: dispensing of mono-component silicon oil

  • Sensor
  • Industry: automotive
  • Application: selective conformal coating of a sensor
  • Process: globtop dispensing of two-components Epoxy

 

 

 

 

 

 

 

 

 

 

  • Electronic box
  • Industry: automotive
  • Application: sealing of an automotive electronic box
  • Process: dispensing of mono-component silicon beads

 

Downloads

Volumetric dispensing solutions

PDF – mta_volumetric_dispensing_10.2017 / 7.5 mb

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