3NTR-A4 - FDM 3D printer


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Industrial equipment with three extruders, a printing volume of 300 x 200 x 190 mm and high quality. 

3NTR (Industrial Grade 3D printers) is an Italian industrial company with more than 60 years of experience in the industrial automation market. Among its most outstanding products are a series of industrial grade 3D printers, designed for maximum performance in intensive use, being able to work in 24/7 cycles.

The 3NTR A4 is an industrial FDM 3D printer with a print volume of 300 x 200 x 190 mm that enables the printing of large objects with a high quality finish.

Video 1: 3NTR A4 FDM 3D Printer printing ASA. Source: 3NTR.

The 3NTR A4 FFF (Fused Filament Fabrication) 3D printer uses thermoplastic materials to produce three-dimensional prints with a quality close to that of injection moulded partsThis industrial 3D printer stands out for its ease of use, minimum maintenance and for not requiring calibration once installed.

Impresora 3D multimaterial

Se trata de una impresora 3D robusta con una sólida construcción que permite obtener un excelente rendimiento gracias a la tecnología de triple extrusorEsta característica permite imprimir las geometrías más complejas empleando dos materiales de construcción (Por ejemplo uno flexible y otro rígido) y uno de soporte soluble.     

The 3NTR A4 Industrial 3D Printer reaches an extrusion temperature of 450ºC and has a heated chamber, allowing it to maintain a constant temperature in order to print all types of filaments, such as ASAABS,PC-ABSPPHIPSNylonNylon-CarbonTriboPETGPLATPU, etc. In addition to these materials, advanced materials can be printed with this industrial equipment. Having a thermo-controlled chamber is key to obtain an optimum adhesion of the part and a great surface finish, preventing changes in ambient temperature from affecting the printing process.

This also avoids warping, which is one of the biggest problems in everyday printing with desktop printers.

On the other hand, 3NTR A4 has a removable carbon fibre printing surface. This printing surface allows a high adhesion of the material when hot and, once it reaches room temperature, it facilitates the removal of the 3D printed parts, which are self-removing. 

Carbon fibre printing surface.

Image 1: Carbon fibre printing surface. Source: 3NTR.

3NTR A4 has a mechanical resolution of 0.015mm and a printing accuracy of up to 0.05mm (Minimum Layer Thickness), making it one of the most accurate industrial FFF/FDM 3D printers on the market.

Monitoring and security

In addition, the SSI software makes it easier to obtain the desired final results and avoid basic errors thanks to the prediction and blocking of these errors by SSI.

Another feature of this 3D printer is the liquid cooling of the extruders that provides a very precise control over them.

Liquid cooling system.

Image 2: Liquid cooling system. Source: 3NTR.

As additional customisation options, this equipment supports:

  • Webcam monitoring: With internet connection to monitor and control the printer remotely.
  • HEPA filter (High Efficiency Particle Arresting): To filter the printing gases and thus have a totally clean environment.
  • Vento filament drying unit: Keeps the material in perfect condition, free of moisture during the printing process.
  • Robust base with wheels: To facilitate the safe transport of the equipment.
  • Uninterruptible Power Supply (UPS): Provides electrical power to the equipment, avoiding voltage peaks or drops.
  • SPFU: Power supply unit optimised for soft polymers, allowing the handling of elastomers.

3ntr 3D printers

Image 3: 3NTR 3D printers. Source: 3NTR.

Unlike other industrial machines on the market, the 3NTR A4 allows parts to be made from the widest variety of materials from both in-house and third-party manufacturers. Thus, this equipment is very useful in a wide variety of applications for different sectors such as aerospace, automotive, defence, orthopaedics, fashion, medicine, etc.

Manufacturer 3NTR (Italy)
Technology FDM/FFF
Certificates CE
Printer properties
Print volume A4v4: 295 x 195 x 200 mm
A4SP: 296 x 167 x 200 mm

3 of 2.85 (A4V4)

Extruder #1 of 2.85
Extruder #2 and #3 from 1.75
+Kit ABS (ABS 2.85 + SSU00 1.75)
+Kit AM200 ( AM200 + SP001 , 1.75)
Extruder used with AM200 cannot print any other polymer

Filament diameter 2.85 mm
Nozzle diameter available 0.3mm, 0.4mm, 0.6mm, 0.8mm
Screen LCD
Electronics -
Firmware -
Filament sensor Yes
Nozzle clog sensor No
Autolevel -
Webcam Optional (PrintServer + web cam)
Print properties
Positioning resolution (XY) 0.011 mm
Positioning resolution (Z) -
Layer height 0.1/0.6 mm
Max print speed 200 mm/s
Max extruder temperature 450ºC
Max base temperature 160ºC
Max camera temperature 90ºC
Working environment temperature 15ºC - 35ºC
Software and conectivity
Software SSI  in Windows 32/64
Compatible files -
Conectivity -
Electrical properties
Input 5 A / 230 V
Output -
Consumption 2300W
Dimesions and weight
Printer dimensions 528 X 515 X 615 mm
Printer weight 43 kg
HS Code 8477.5900

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