Visit us and discover the Qu4-HT at formnext , Hall 12.1 Stand A15 from 7 to 10 November 2023 - Frankfurt - Germany


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Heat only the volume you need to print.

The Qu4 HT heats only the volume needed to print your parts, with a chamber that adjusts automatically and progressively according to the height of the print. .


Double thermal insulation

The chamber benefits from optimum thermal insulation thanks to double insulation separated by a layer of air, drastically reducing energy loss.
Chamber at start of printing
Chamber at the end of printing
Perfect thermal uniformity in the chamber
It is always much easier to obtain a uniform temperature in a chamber that is adapted and adjusted to the volume of your part being printed.
Significant reduction in energy consumption
Thanks to the compression of the chamber at the start of printing, pre-heating times are considerably reduced, reaching 200°C in less than 7 minutes. No other machine on the market offers such a rapid temperature rise for an equivalent print volume.


Ultra Fast Heating Time
Our adaptive chamber ensures minimal warm-up time, so you can start your 3D printing projects quickly :
- 3 min heating time before printing starts for
Polycarbonate (140°C Chamber).
- Less than 5 minutes for
PEI 9085 (175°C Chamber)
- 6 mins for
PEI 1010 (205°C Chamber)
- Even for most demanding materials such as
PI or TPI, the chamber reaches 245°C in less than 10 minutes.

You won't waste any more time waiting for the printer to be ready to print.


Laminar airflow printing chamber up to 300°C

The hyper-ventilated chamber uses a unique technology to propel a stream of hot air into the chamber.


Renewed almost 2 times a second, this hot air ensures perfect thermal uniformity of your parts.


No more areas that are too hot or areas that warp...

Air flow in the chamber
Thanks to this technology, the Qu4 HT can print parts using advanced materials such as PEEK, PEKK, PPSU and PEI (PolyEtherImide, trade name ULTEM®).

It also performs very well with more conventional materials such as ABS, PC, fibre-filled materials and metal-filled materials (MIM), such as BASF's Ultrafuse® 17-4 and 316L series, Flex, etc.


400 x 400 x 350mm : 56 LITRES

With a print area of 400x400x350mm, this machine is suitable for producing large parts or printing several objects in a single session. This capacity offers users great flexibility and increased efficiency, minimising repeated print cycles.


Ready for AI

In addition to the technical feat of operating a camera in a high-temperature enclosure, this camera offers exceptional image quality and nozzle visualization. Its resistance to high temperatures enables precise, real-time observations of the printing process and nozzle path, giving users unprecedented control.

You can visualize layers like never before, adjusting and correcting flow and "baby steeping" live, checking that the material is adhering correctly to the bed... all from the comfort of your desk.

  • Detection of anomalies at source and in real time
  • Enhanced ease-of-use and confidence
  • Ready to make AI a reality in 3D printing : this camera will feed artificial intelligence algorithms with high-quality visual data. This will enable advanced customization and automatic optimization of printing parameters.
General view of the head camera (click to maximize)
AI-enabled region of interest (ROI) - PEEK CF Printing


Liquid-cooled printheads.

A water pump circulates 500 litres of liquid per hour through the head, ensuring an ideal temperature in the cold zone of the head. The cooling liquid is in turn cooled by a ventilated radiator.


With this system, the water temperature never exceeds 45°C for printing lasting several hours at an extrusion temperature of up to 420°C.

Interchangeable print heads in just a few minutes,

allowing great flexibility in the choice of materials.

The machine recognises the head installed and configures itself for optimum use.


Dual Head

Filaments, Pellets...

Heads can be supplied for different types of material, such as filaments, high-temperature filaments, pellets, high-temperature pellets, thermosets, pasty materials, etc.


Heads fitted with a system of self-sealing watertight connectors

during connection and disconnection, facilitating maintenance while minimising the risk of liquid leaks.


By opting for a liquid-cooled head, you can benefit from more stable, reliable and efficient printing on a wide range of materials, while guaranteeing the longevity of your machine thanks to easy maintenance.


The Qu4 HT comes with a range of print beds
to suit your specific needs.

The PEEK print bed is the optimal choice for printing materials such as PEEK and PEKK, while the PEI bed is ideal for printing materials at lower temperatures. Metal or Glass beds can be used for extreme temperatures.

Easily removable print beds
in a matter of seconds thanks to a vacuum system.

STEP CAD files of the printing bed can be supplied on request, enabling you to create your own printing beds.


Before each print, once the chamber, the print bed and the heads have reached the desired temperature, just before printing begins, the bed sensor is auto-calibrated. This step precisely determines the distance between the sensor and the nozzle.

Following this probe calibration, the bed also undergoes a self-calibration, including a 3D mapping of its surface.

This procedure ensures the optimum position of the printing nozzles, guaranteeing a perfect first layer.

This procedure is repeated for each print run.


The Qu4-HT can be equipped with a Quality Assurance system: QuControl

which measures filament diameter continuously and compensates for variations in volume during printing.


Filament manufacturing tolerances generally vary by +/-0.05mm, which in reality gives a 12% variation in volume between the maximum and minimum tolerances. For technical filaments such as PEEK, PEKK, PEI and PPSU, some manufacturers even claim tolerances of +/-0.10mm, which means that the filament can vary by 24% in volume!

This system makes it possible to compensate "live" for variations in filament diameter.

Thanks to QuControl

you can be sure that the quality of your parts will be identical, whatever the variations in the filament. This feature guarantees the reproducibility of 3D printed parts.


The Qu4-HT generates a complete print report for each print, containing all the print and temperature parameters, as well as all the filament diameter and ovality measurements (with an accuracy of 0.8µm) and the volume compensations sent to the machine.

Find out more here ...



The Qu4-HT offers an optional FLIR thermal imaging camera.


This camera provides a global thermal vision of the chamber, updated more than 5 times per second.


QU3 imprimante 3D haute temperature vue en camera thermique

Temperature measurement tools

enable you to measure up to 4 points simultaneously.


The thermal camera can be accessed from any PC connected to your network.


For  each print, the Qu4-HT records all the print parameters

such as speeds, head, chamber and bed temperatures, material flow rates, and so on.

The files generated are Excel-compatible, so you can retrieve the data you need and check that the print has been completed correctly.


A machine designed to be connected

Our machine is adapted to current technological developments. It has been specifically designed to accommodate the addition of multiple connected objects, enriching its potential and versatility. Whether it's sensors to monitor specific variables, cameras for surveillance or visual analysis, or other devices, our machine is ready to integrate into an advanced technological ecosystem.


Flexibility of Interaction:

Added connected objects can either operate autonomously or interact directly with the machine. This flexibility allows you to adjust the configuration according to your precise requirements. So, depending on your needs and specifications, you have the freedom to define the degree of integration and interaction of each component.


Each machine is supplied with a specially designed extension lead.

This extension has been designed to allow you to work on the extrusion heads outside the machine.


Safe warm-up: You can warm up the heads outside the machine.


Easy maintenance: Regular checks and repairs are child's play. With the extruder head detached, you have easy access to every component. No more twisting and turning to access difficult areas: everything is within easy reach.


Precise calibration: Make your adjustments and calibrate the extrusion rate in a comfortable working environment.


Optimised working environment: Thanks to this extension, you can now carry out these tasks from the comfort of your desk, next to the machine.

So, depending on your needs and specifications, you have the freedom to define the degree of integration and interaction of each component.


The Qu4-HT has been designed to facilitate maintenance and minimise machine downtime.


By using as many standard off-the-shelf components as possible that can be adapted to thermal constraints, maintenance is simplified and wear parts are easily accessible.


The printheads can be removed in a matter of minutes, enabling fast and accurate maintenance using the head extension supplied with the machine.


High-temperature chamber heaters are accessible from the side and can be replaced in less than 5 minutes.


The thermal camera can be extracted with three screws, while the vacuum pump can be removed in just a few minutes.

  • PEI 1010
  • PEI 9085
  • PEKK CL10
  • PEKK
  • PPSU
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Copyright © 2011-2024 QUALUP SAS

3D printing specialist. We have been designing heated chamber 3D printers since 2013 Our expertise has led us to make custom machines for industry and research, and we specialise in printing high-temperature polymer materials.
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Technical specifications subject to change without notice