Company
Zhejiang Rongcai Machinery Co., Ltd. — Company Profile
Zhejiang Rongcai Machinery Co., Ltd. develops and manufactures high-performance fully automatic extrusion production lines for 3D printing filament under the Rongcai brand. Backed by a group with a history dating back to 2008, Rongcai was established in 2025 to focus on providing machinery and production solutions for the plastics and 3D printing filament industries, and operates from Wenzhou, Zhejiang, China.
Company facts
Confirmed company facts

- Legal name
- Zhejiang Rongcai Machinery Co., Ltd.
- Brand
- Rongcai
- Headquarters
- Wenzhou (Pingyang), Zhejiang, China
- Focus
- High-performance fully automatic extrusion lines for 3D printing filament
- Origin
- Established in 2025, backed by a group founded in 2008
- Manufacturing footprint
- 48,000 m² Wenzhou base in operation; nearly 65,000 m² Anji (Huzhou) base under construction, planned to start production in 2027
- Employees
- Nearly 300 employees, with engineering and technical R&D personnel accounting for more than 25%
- Product certification
- CE — Attestation of Conformity (certificate M.2026.206.C143587, valid 1 July 2026 – 30 June 2031) for the 3D printing filament extrusion and winding automatic production line, models RC-50, RC-45 and RC-SJ, held in Rongcai's own name
Rongcai designs and manufactures filament extrusion lines and automatic winding machines for filament producers. The product range covers a high-speed extrusion and automatic winding line, a standard-speed line, and two automatic winding machine variants distinguished by how the filament end is fixed to the spool.
The company focuses on 3D printing material extrusion technology and integrates precision temperature control, intelligent detection and unmanned spool change into its fully automatic lines, offering both standard configurations and customized production solutions.
Backed by a group with a history dating back to 2008, Rongcai was established in 2025 to focus on machinery and production solutions for the plastics and 3D printing filament industries, building full-chain capability from core technology R&D to precision manufacturing.
Manufacturing runs on a dual-base footprint. A modern production base of 48,000 m² in Pingyang, Wenzhou, is already in operation, and a second base of nearly 65,000 m² in Anji, Huzhou, is under construction and planned for 2027. Group-wide, the team counts nearly 300 employees, with engineering and technical R&D personnel accounting for more than 25%.
Quality follows the group principle of "quality first, innovation driven". A strict quality management system runs from raw materials to finished products, and machines are assembled, commissioned and performance-tested in the company's own production workshop before delivery.
CE conformity for the filament equipment is registered in Rongcai's own name. The 3D printing filament extrusion and winding automatic production line, models RC-50, RC-45 and RC-SJ, is covered by an EU Attestation of Conformity to the Machinery Directive 2006/42/EC and the Electromagnetic Compatibility Directive 2014/30/EU, certificate M.2026.206.C143587, valid from 1 July 2026 to 30 June 2031. Other CE documents held inside the group cover the group's packaging machinery lines and stay with those group companies; they do not apply to Rongcai filament equipment.
Milestones
Development timeline
2008
Group heritage begins
The manufacturing group behind Rongcai dates its machinery history back to 2008, building engineering and precision manufacturing capability.
2025
Rongcai established
Zhejiang Rongcai Machinery Co., Ltd. was established in 2025 to focus on machinery and production solutions for the plastics and 3D printing filament industries.
Today
Wenzhou production base in operation
A modern production base of 48,000 m² in Pingyang, Wenzhou, supports machine building, assembly and testing.
2027, planned
Anji (Huzhou) production base
A second modern base of nearly 65,000 m² in Anji, Huzhou, is under construction and planned to enter service in 2027, forming a dual-base manufacturing footprint.
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Inside Rongcai
Bases, workshop and delivery
Our office
Office and team workspace
The Rongcai base in Wenzhou combines a modern office building with the production workshops next door, so sales, engineering and manufacturing teams work on the same site and hand projects over directly.
The office area includes an open-plan workspace, a reception hall where company honours are displayed, a client lounge and dedicated meeting rooms, giving visiting customers a complete space for technical discussions and project reviews.
The team places emphasis on talent development, experience sharing and internal communication, and this well-organised working environment supports the continuous innovation and stable growth of the company.
More about Rongcai
Company, manufacturing and quality
Discuss a filament production project
Send your material, filament diameter, target output and spool specification, and Rongcai reviews a matching configuration.
