标题: Sixteen Lasers, a 1.5-Meter Build Area: Two Eplus3D EP-M1550H Machines Enter Production at Dovi Technology [打印本页] 作者: admin 时间: 2026-10-20 15:53 标题: Sixteen Lasers, a 1.5-Meter Build Area: Two Eplus3D EP-M1550H Machines Enter Production at Dovi Technology Introduction: In the manufacturing of launch vehicles and other aerospace equipment, "larger and more integrated" structures are key to reducing weight and improving performance.
Nanjixiong learned that in October 2026, two oversized EP-M1550H SLM metal additive manufacturing machines at Dovi Technology were installed and successfully entered production. Their deployment marks a major advance in the company's ability to form oversized, complex metal components as integrated parts and strengthens its high-end additive manufacturing delivery capability for aerospace and space propulsion applications.
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From segmented printing to one-piece forming: solving the weld-seam problem in large components
In metal SLM additive manufacturing, the build area sets the boundary for producing large structural parts. The EP-M1550H is an oversized metal additive manufacturing machine from Eplus3D. Its build volume is 1,558 × 1,558 × 1,600 mm, with 16 lasers and an optional 25-laser configuration. With precise multi-laser positioning and control of accuracy in overlap regions, it supports titanium alloys, aluminum alloys, high-temperature nickel-based alloys, tool steel, stainless steel, cobalt-chromium-molybdenum and copper alloys. It suits high-precision manufacturing in aerospace, moldmaking, medical implants and other fields.
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The core value of these machines entering production is replacing "segmented manufacturing plus welded assembly" with one-piece forming. Nanjixiong noted that Dovi previously used "segmented 3D printing + machining + welded integration" to manufacture rocket engine thrust chambers, balancing yield and depowdering difficulty. The EP-M1550H gives Dovi equipment capable of directly forming larger structural components as integrated parts—a significant advance in its manufacturing approach.
A complete production range: from 1.5-meter oversized parts to small and medium components
Through continued production-line construction and upgrades, Dovi now has complete manufacturing capability from 1.5-meter oversized components to small and medium parts, covering build sizes of 1,550 mm, 1,250 mm, 825 mm, 650 mm and 400 mm.
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Its production lines include SLM machines in multiple sizes and support printing multiple parts in parallel, accommodating both individual prototyping and scaled production. Multiple machine types operate collaboratively to take on R&D and prototyping projects in parallel, respond quickly to process-validation and one-off development needs, and support stable batch delivery. The company provides one-stop additive manufacturing, from topology optimization and powder selection through additive forming, post-processing, inspection and delivery.
Nanjixiong learned that Dovi operates nearly 100 additive manufacturing and remanufacturing machines and systems. It is a National High-Tech Enterprise and a Liaoning Province Specialized, Sophisticated, Distinctive and Innovative Enterprise, with a complete set of defense-industry qualifications. Its liquid rocket propulsion additive manufacturing project has a total investment of RMB 100 million, deploys 17 domestically made metal 3D printers, and has annual capacity of 16.5 tonnes of core components such as thrust chambers and gas generators.
Deep in the aerospace sector: integrating large-format capability with aerospace processes
Dovi has focused on high-end equipment localization needs in aerospace additive manufacturing. The two oversized machines entering production further strengthen its process and delivery advantages in oversized additive components.
From copper-alloy thrust chambers to stainless-steel and high-temperature-alloy engine hot-section components, and from segmented printing to integrated forming of oversized parts, Dovi is building an end-to-end capability spanning materials, processes, equipment and delivery. The company says it will continue refining large-part printing processes, improving production stability and delivery efficiency for complex components, and relying on its complete additive manufacturing lines to provide reliable manufacturing support for customers' product development.
AI-translated from an article by Xiaoruanxiong on Nanjixiong, originally published on 2026-10-20. Text and images retain the original source attribution. Read the original Chinese article
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