Ekochem Plastics

Single-screw laboratory extruder - WJ-20

A WJ-20 laboratory extruder for plastics compounding and testing of new formulations. A compact solution designed for maximum reliability, superior processing quality and the same full process control as in production machines.

Let us know what materials you work with, and we will adjust the machine’s configuration to your process.
±0.5°C
Accurate temperature control of each heating and cooling zone
50–450°C
Versatile operating temperature range in various process configurations in one device
0.6 m²
Compact structure, fully integrable with different technological lines
Laboratory extruder
dekoracja

Our extruders are suitable for the processing of plastics

HDPE
LDPE
PP
PETG
PVC
PA
PC
and others
Verification of production parameters before shipping to a customer
Optimum operating conditions thanks to a stable cooling system
Fully configurable screw and a wide range of additional components
Compact structure means easy installation and maintenance
Economic and environmental aspects

Most important parameters of our laboratory extruders

Flexible output of up to 10 kg/h
Keep the production process smooth even under heavy workloads. No downtime or delays.
WJ Ready™ – Plug & Produce
The ‘Plug & Produce’ concept translates into a shorter startup time and allows for obtaining stable production parameters quickly. The machine is ready for efficient operation from day one.
WJ Lift™ – Stable process cooling system
Automatic operating height adjustment. Fully integrable with different technological lines.
Intuitive IoT control system with a PLC Delta controller
Allows for checking all operating parameters, including remote monitoring of temperature, pressure, screw speed, energy consumption, and offers cloud-based archiving of production data and full maintenance support.
WJ EcoDrive™ – High energy efficiency
Modern drives, energy-efficient heaters, and optimised temperature control reduce energy consumption and production costs.
WJ Flex™ – Ready for process expansion
Quick couplings guarantee easy connection of additional heating zones, whereas the pre-installed connections enable seamless integration of dosing systems.
WJ Control™ – Intuitive IoT control system with a PLC Delta controller
A modern PLC control system ensures intuitive control and real-time monitoring of all operating parameters. A recipe saving function allows for fast changeover of the production process, while data archiving facilitates quality control and process optimisation. The system offers:
  • remote monitoring of operating parameters (temperature, pressure, screw speed, energy consumption),
  • monitoring of efficiency and OEE,
  • fault and alarm notifications,
  • remote diagnostics and maintenance support,
  • cloud-based archiving of production data,
  • energy consumption analysis, process optimisation,
  • predictive maintenance.
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Applications

Our laboratory extruders are used in various plastics processing industries: automotive, construction, packaging, toy, and electrochemical.
Automotive industry

Automotive industry

Materials for e-mobility, metal replacement materials, modification of interior component properties
Construction industry

Construction industry

Modification of insulating materials, changing of PVC material properties, waste recycling
Packaging industry

Packaging industry

Development of biodegradable packaging, multilayer film design, modification of polymer properties
Toy industry

Toy industry

Colouring plastics with masterbatches, phthalate- and heavy-metal-free formulations, better impact resistance of components

Capabilities and configurations of laboratory extruders made by Ekochem

Single-screw extruders – precision that powers production. The most effective solutions combine extensive experience with modern technology. Single-screw extruders are at the heart of any efficient production line – they are made to be reliable, offer the highest processing quality and ensure full control over the process.

A robust structure, a precisely designed plasticising unit, and components made by renowned manufacturers guarantee a stable operation for thousands of hours, even under the most demanding conditions. Their excellent output, customisable configuration options, and high energy efficiency ensure that each machine perfectly meets the needs of a specific technological process.

Solutions for discerning customers expecting higher efficiency, consistent product quality, lower operating costs, and full technical support. Whether you are processing virgin raw materials or the most challenging recycled materials – our extruders ensure process stability, flexibility of application, and a competitive edge.

Our machines are based on components by renowned manufacturers. Hoyer or Siemens motors, Vacoon or Twerd vector inverters, Rossi Motoriduttori gearboxes, supported by modern Eaton, LG or Siemens electronic components, make reliable equipment with a long service life. This is the WJ Reliable™ philosophy.

The WJ Flex™ technology allows us to configure each extruder to perfectly meet your production needs. We select an appropriate screw diameter, feeding system, degassing system, as well as additional components.

Our offer includes single-screw extruders for processing homogeneous plastics, designed for mixing, homogenising, as well as aerating or degassing various materials.

By choosing Ekochem's extruders, you get a machine which allows you to safely work with HDPE, LDPE, PP, PETG, PVC, PA, and PC materials, not only in the form of virgin materials or regranulate. This grants you full flexibility, convenience and safety. We provide full technical support and consulting at each stage of the cooperation.

Service and expert support from the laboratory extruder manufacturer

As a manufacturer of extruders and other industrial equipment, we offer full after-sales support. This includes warranty and post-warranty maintenance, available not only during emergencies.

Maintenance inspections and process optimisation

We optimise machine parameters to meet your needs and ensure long service life.
pracownicy laboratorim Ekochem

Assembly, training and development

Delivery, assembly, commissioning and machine changeover at your facility. Our experts provide training to operators.

Service and technical support

We provide maintenance of machines and technological lines used in the processing of plastics. Our service is available round-the-clock, while spare parts are quickly accessible.
Case study

Our implementations

Check our selected implementations and see how we support our customers in increasing efficiency, process stability and production development in various plastics processing industries.
LED profiles
Stable manufacturing process

Installation of a technological line for the extrusion of plastic LED profiles

We launch a complete technological line for the extrusion and co-extrusion of LED profiles. This
Read more
Granulat w pojemniku
Processing of plastics
Improvement of production efficiency

EkoAbsorber – a cost-saving solution for moisture and foaming issues

We show how EkoAbsorber helps us reduce material moisture, stabilise production, increase efficiency up to
Read more
Packaging
Production development

How do we solve problems of our clients from the packaging industry?

We show how the tests, know-how, and technology helped us solve the issue with regranulation
Read more

Frequently
Asked Questions

Single- and twin-screw extruders are used whenever rubber or plastics compounds need to be processed or developed under laboratory conditions. Our machines are used by companies from, among others, the automotive, construction, packaging, toy, and electrochemical industries.

Our machines use the WJ SafeCool™ stable process cooling system. The closed-loop cooling circuit with a heat exchanger maintains optimum operating conditions, increases machine reliability and reduces water consumption. This helps you lower your production costs.

The screw geometry is adjusted to the type of processed material and ensures uniform plasticisation, stable material flow and high quality of the end product. Upon your request, we can also add a degassing system, feeding system and various other additional components.

Single-screw extruders are most suitable for processing one material (e.g., cables or pipes). Twin-screw extruders are designed for compounding additives, colourants and plastics that are heat-sensitive or have other characteristics that make them difficult to process.

The temperature profile in the barrel, the screw speed, as well as the pressure and temperature in the die are key factors affecting the extrusion process. The result is also affected by the L/D ratio, i.e., the screw’s length-to-diameter ratio and its geometry.

An integrated degassing system removes moisture and volatile compounds from the processed material. It prevents the formation of air bubbles, which lower material strength and the aesthetic value of the end product.

Contact us to choose the perfect machine for your production process

Are you planning to launch a compounding line or enhance your plastics processing or formulation research capabilities?

Contact us and our specialists will help you choose a laboratory extruder that perfectly fits your materials and efficiency. A complimentary and non-binding consultation is the first step in optimising your production process. We will advise you on the screw diameter, feeding and degassing systems, and show you the best course of action.

Contact us