In the wave of intelligent and high-efficiency transformation in industrial manufacturing, equipment safety has always been an insurmountable bottom line. Recently, Shanghai ESU Laser Technology Co., Ltd. (hereinafter referred to as "ESU Laser") announced a major milestone: its third-generation multi-laser metal 3D printer, the E3-420, fully independently developed, has officially obtained the strict EU ATEX explosion-proof certification.

This landmark achievement not only signifies that ESU Laser’s technological prowess in equipment safety design has reached the world’s top level, but also demonstrates the company’s ultimate commitment to user safety and production environment protection.

Strict Certification Builds Hard Power in Safety

ATEX explosion-proof certification is one of the most authoritative standards in Europe for equipment used in potentially explosive atmospheres, regarded as a “safety passport” for products entering the European market.

The certification imposes extremely stringent requirements on equipment protection in flammable and explosive environments, covering comprehensive assessments from structural design and material selection to electrical system safety.

The successful certification of ESU Laser’s E3-420 confirms that, through effective design, the machine can reliably prevent sparks or high-temperature surfaces in potentially explosive environments such as powder-filled print chambers, thus eliminating ignition risks at the source.

This is not only the highest recognition of the safety performance of the E3-420 itself, but also a strong validation of ESU Laser’s R&D philosophy of “Safety First”.

ESU Laser has always maintained that advanced manufacturing equipment must not only deliver high precision and efficiency, but also provide fully reliable protection for operators and production environments.

E3-420: Reaching the Peak of Performance on a Foundation of Safety

The ATEX-certified E3-420 is the third-generation upgraded model developed by ESU Laser specifically for the mold industry. It represents not just a single technical breakthrough, but the achievement of a collaborative system driven by “hardware foundation – material adaptation – process empowerment”.

At the hardware level, the E3-420 features superior engineering design. Its build chamber is equipped with a long‑lasting filtration system and a professional cooling system, which effectively control dust concentration and temperature inside the chamber. Combined with its explosion‑proof design that has passed certification, the machine guarantees absolute operational safety when dealing with metal powders — some of which are flammable and explosive — inevitably generated during metal 3D printing.

Meanwhile, the machine supports a build volume of up to 400×400×420 mm, balancing large‑format production and intrinsic safety. This solves the long‑standing pain point in large mold manufacturing: the difficulty of achieving high productivity and high safety at the same time.

Building on Safety, Empowering High-End Manufacturing

Since entering the additive manufacturing industry in 2018, ESU Laser has focused on the mold sector, establishing a full industry chain layout — from powder materials and printing equipment to process R&D and application services. The ATEX certification of the E3-420 marks not only a technological breakthrough, but also a key step in its global strategic layout.

“Safety is the foundation of innovation,” said a representative of ESU Laser. “The ATEX certification for the E3-420 confirms that our equipment not only meets the demands of high-end domestic manufacturing, but also fully aligns with international high-standard industrial safety regulations.”

Going forward, ESU Laser will continue to uphold its philosophy of “Making Manufacturing Easier and Faster”. Leveraging safety-certified equipment, the company will provide more reliable and efficient one-stop solutions for high-end sectors including automotive electronics, precision molds, and semiconductor components, supporting the steady progress of China’s intelligent manufacturing on the global stage.