Portable metering
SP-15E and SP-30E portable dispensers
Portable metering with Sulpol engineering: up to 15 or 30 kg/min, 1:1 mix ratio by volume.
Industrial and commercial refrigeration
Engineering for your product’s insulation process.
Insulating cabinets, doors and cold rooms with rigid polyurethane foam.
The process
How polyurethane is used in refrigeration
In refrigerators, freezers, display cases and cold rooms, rigid polyurethane foam is both the thermal insulation and part of the structure. It is injected between the cabinet walls, expands, fills the cavity and bonds to the skins.
The result depends on metering the right ratio, mixing well, distributing the foam so it fills without voids, and containing the expansion until it cures. That is why metering machine, mixing head and mould carriers are designed together.
Steps
Typical process flow
- 01 Conditioning Components at working temperature.
- 02 Metering High pressure with controlled ratio.
- 03 Mixing Self-cleaning impingement head.
- 04 Injection Cabinet positioned in the mould carrier.
- 05 Curing Plug containment during expansion.
Reference flow. Each project defines the steps included and each supplier’s responsibilities.
Diagnosis
Questions to start the project
You do not need every answer. They structure the conversation with our engineering team and with your PU system supplier.
Send my answers- Q1 What will be insulated: cabinet, door, panel, cold room?
- Q2 What is the cavity volume and the target foam density?
- Q3 Which polyurethane system and blowing agent will be used?
- Q4 What is the target cycle and how many injection points?
- Q5 Will there be mould carriers, plugs or integration with an existing line?
Related solutions
Equipment for refrigeration
Recommending a solution for this application does not replace analysis of the material and process.
High pressure
Ecológica AP high-pressure metering machines
Impingement mixing at high pressure with a self-cleaning head and no solvent flushing.
Low pressure
ST-C low-pressure metering machines
Dynamic mixing for flexible, integral-skin, rigid and semi-rigid foams.
Integration
Special projects and line integration
Metering, mould carriers and automation designed together for your part.
Components
High-pressure mixing heads
In-house manufacturing, solvent-free cleaning and repair — including for imported machines.
Components
Polyurethane metering pumps
Gear and axial piston pumps for high- and low-pressure metering.
Refrigeration
Mould carriers for refrigeration cabinets
Containment and positioning for foaming cabinet insulation.
Knowledge · Articles in Portuguese
Learn more
Poliuretano na refrigeração e na cadeia fria
Por que a espuma rígida de poliuretano isola refrigeradores, expositores e câmaras, e o que o processo de espumação precisa garantir em cada gabinete.
Temperatura e pressão no processamento de poliuretano
Como a temperatura dos componentes e a pressão de trabalho influenciam viscosidade, mistura, reatividade e a qualidade final da peça de poliuretano.
Other applications
Application engineering
Tell us what you need to produce.
We will look at your application, target output and metering requirements to assess the right equipment configuration.