RSPro800X prints with four lasers

The speedy UnionTech SLA printer can produce prototypes, large single parts or small batches.
March 16, 2026
2 min read

RSPro800 X UnionTech’s new 3D printer uses four lasers working simultaneously with cross-coordinated control technology and intelligent load-balancing algorithms. The system features UnionTech’s UT-One remote monitoring system for batch management of multiple devices and data insights. Offering full-process automation and seamless integration for the automotive and medical industries, as well as others, it is appropriate for printing large single parts, and performing small-batch production of end-use parts. It can quickly produce stereolithography (SLA) resin patterns that replace traditional metal dies for investment casting, and create large-format prototypes, such as automotive dashboards, lamp housings and HVAC cases, in a single print. It's also useful for injection mold prototypes and patterns. 

What’s new? The RSPro800 X, which according to UnionTech is the industry's first four-laser, large-format SLA 3D printing system. UnionTech announced global availability of the RSPro800 X at Formnext 2025. 

Benefits Efficiency, cost-effectiveness and significant print-speed reductions, compared to printers that have only one laser. For example, according to UnionTech, a complex architectural model that took 69 hours can now be printed in 48 hours.

UnionTech, Shanghai, [email protected], www.uniontech3d.com 

Vital Statistics

Printer dimensions 

About 6.7 feet by 6.4 feet by 8.1 feet

Printer weight 

About 3,732 pounds 

Resin vat capacity 

About 1,235 pounds, replaceable 

Scanning speed 

Up to nearly 42 feet per second 

Temperature range 

About 72 degrees Fahrenheit to 79 degrees Fahrenheit 

 

About the Author

Karen Hanna

Senior Staff Reporter

Senior Staff Reporter Karen Hanna covers injection molding, molds and tooling, processors, workforce and other topics, and writes features including In Other Words and Problem Solved for Plastics Machinery & Manufacturing, Plastics Recycling and The Journal of Blow Molding. She has more than 15 years of experience in daily and magazine journalism.