Zhejiang Rongcai Machinery Co., Ltd

Manufacturing

Rongcai Machinery Manufacturing Facility

Rongcai is a 3D printing filament extrusion line manufacturer with its own production base in Pingyang, Wenzhou, Zhejiang. Its 48,000 m² production-standard factory buildings support machine assembly, line commissioning and testing for filament extrusion lines and automatic winding machines. A second production base of nearly 65,000 m² in Anji, Huzhou, is under construction.

Factory buildings of the Rongcai production base in Wenzhou, Zhejiang

Company facts

Confirmed company facts

Location
Pingyang, Wenzhou, Zhejiang, China
Production bases
48,000 m² Pingyang (Wenzhou) base in operation; nearly 65,000 m² Anji (Huzhou) base under construction, planned for 2027
Production-standard factory buildings
48,000 m² at the Wenzhou base
Workshop scope
Whole-machine assembly, commissioning and performance testing
Product built here
Filament extrusion lines and automatic winding machines
Manufacturing team
Nearly 300 employees, with engineering and technical R&D personnel accounting for more than 25%
Product conformity
CE Attestation of Conformity for the 3D printing filament extrusion and winding automatic production line, models RC-50, RC-45 and RC-SJ, certificate M.2026.206.C143587, valid 1 July 2026 – 30 June 2031

Manufacturing Capabilities

3D Filament Extrusion Line Manufacturing

As a 3D printing filament extrusion line manufacturer, Rongcai builds and assembles filament extrusion lines and automatic winding machines at its own production base in Pingyang, Wenzhou, Zhejiang, China. Our manufacturing work covers whole-machine assembly, line commissioning and functional testing before delivery.

A 3D filament extrusion line operates as a connected production system. The extrusion, cooling, diameter measurement, traction and winding sections must work together, so each line is assembled and tested as an integrated system rather than as a collection of separate machines.

Assembly, Commissioning and Testing

Our production workshop supports the assembly and commissioning of 3D filament extrusion equipment. Each machine undergoes functional checks in the workshop before packing and release for delivery.

Production is organised around the configuration agreed for each project. The equipment specification is reviewed against the customer's material, target filament diameter, required output and spool requirements so that the delivered configuration reflects the agreed production needs.

Quality Control

Rongcai follows the group principle of "quality first, innovation driven". Quality checks cover incoming materials, assembly, commissioning and finished-machine testing. Each machine undergoes functional checks before packing and shipment.

Detailed assembly-line capacity figures and production statistics are not published on this site. Ask Rongcai for current manufacturing information during the project discussion.

Production workflow

How machines are built and tested

01

Incoming material and component control

Incoming materials and bought-in components are checked against the agreed specification before they enter assembly, so the machine is built from released parts.

02

Mechanical assembly

Frames, extrusion and cooling sections, traction and winding stations are assembled and aligned in the workshop.

03

Electrical and control integration

Control cabinets, wiring and the operator interface are installed and connected on the assembled machine.

04

Commissioning

The line is started section by section and settings are adjusted until the sections run together as one process.

05

Performance testing

Each machine runs through its functions and the agreed configuration points are checked before the machine is released for packing.

06

Conformity documents and release

The machine is released with the conformity documentation for the delivered line, including the CE Attestation of Conformity for the extrusion and winding line.

07

Packing and loading

Machines are wrapped or case-packed, loaded into containers or onto trucks, and secured for shipment.

Certification

Certificates and conformity documents

Every line leaves the workshop with the conformity documentation prepared for it. The certificate shown here is issued to Zhejiang Rongcai Machinery Co., Ltd. for the 3D printing filament extrusion and winding automatic production line built at the Wenzhou production base.

It records the directives and standards the line was assessed against, the models it covers and the period it stays valid, so the certificate scope can be checked against the line being quoted.

CE Attestation of Conformity — filament extrusion and winding line

Issued after the technical file for the line was inspected and the audit completed. The certificate covers the 3D printing filament extrusion and winding automatic production line and is registered to Zhejiang Rongcai Machinery Co., Ltd., the company that builds the RC-50 high-speed line and the RC-45 standard-speed line.

Certificate number
M.2026.206.C143587
Product covered
3D Printing Filament Extrusion and Winding Automatic Production Line
Models covered
RC-50, RC-45, RC-SJ
Directives
2006/42/EC (Machinery); 2014/30/EU (EMC)
Valid until
30 June 2031

Conformity and quality-system documents held by other companies of the group cover the group packaging machinery business. The CE Attestation of Conformity shown here is the document issued in the name of Zhejiang Rongcai Machinery Co., Ltd. Ask Rongcai for the current certificate set during the project discussion.

Inside Rongcai

Bases, workshop and delivery

Production workshop
Assembly area in the workshop
Assembly and commissioning
Control commissioning
Container loading
Wooden case packing
Loading for delivery
Secured for transport

More about Rongcai

Company, manufacturing and quality

Zhejiang Rongcai Machinery Co., Ltd. — Company Profile

Who Rongcai is, what it builds and where it is based.
Learn more

Discuss a filament production project

Send your material, filament diameter, target output and spool specification, and Rongcai reviews a matching configuration.

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