QLS 820 Laser Sintering 3D Printer

QLS 820

Laser Sintering 3D Printer

With the highest part throughput in its class, the QLS 820 thermoplastic 3D printer is a quad laser system which offers unprecedented production capabilities designed with automation and scalability in mind. The QLS 820 takes 3D printing to a whole new level, producing up to 4x the throughput of traditional laser sintering 3D printers and other polymer powder bed technologies.

With its removable build unit and automated materials processing solution, the QLS 820 delivers a flexible and scalable architecture to enable serial production of 3D printed plastic parts.

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World’s Fastest SLS 3D Printer

The QLS 820 has smart automation, removing pain points in capacity utilization and downstream labor intensity. With 4x more power and throughput compared to competitor models, this thermoplastic 3D printer can print up to 8 liters per hour.

Broad Material Selection

A wide-use temperature range, inert processing atmosphere, and an open source platform allow for the printing of many materials including PA12, PA11, Polypropylene, as well as aluminum, glass and fiber-filled options.

Scalable Convenience

With an automation-ready architecture, modular material processing system, and advanced fleet management software, the QLS 820 is designed to be scaled for production.

QLS 350 printed parts


Build Volume350 x 350 x 400 mm
Dimensions Closed200 x 140 x 200 cm
Laser Type4 x 100W CO2
Printing SpeedUp to 8,000 ccm per hour
Z Resolution50-200 microns
Material Delivery SystemRemovable Automated Build Unit
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QLS 820 Early Customer Program

Being first has its advantages

That includes joining the QLS 820 Early Customer Program with Nexa3D!

For a limited time, we’re providing an exclusive offer to our early QLS 820 customers. Learn how you can take advantage of complimentary software and training, and more, including preferred financing options.

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Aerospace and Defense
Consumer Goods
Service Bureaus


Isotropic, functional and durable prototypes
End-use production parts
High-temperature components
Suitable for use alongside, or in place of, injection mold production
QLS Printed Parts


We offer a wide range of materials that are tailored to meet your every need, from general purpose prototyping to industry-specific manufacturing at scale. QLS 820 is compatible with higher temperature materials such as PA6 at processing temperatures up to 240°C.

QLS Software Screen Hub


NexaX software gives users complete control of their QLS fleet all from one dashboard accessible right from your computer or mobile device. From print preparation to job status and real-time printer performance, NexaX gives users unparalleled visibility to their production systems and access to printer and fleet metrics.

Modular Processing Containers Side by Side

Modular Materials Processing Station

The QLS 820 features a modular material processing station (MMPS) that allows you to scale your operations as needed. From powder containment and blending to breakout, powder reclamation and sieving, the MMPS ensures safe, clean, and efficient material handling across all material operations.