Rapid Prototyping and Custom Manufacturing Services
Upload your CAD files and get engineering feedback, lead time and a quotation for CNC machining, 3D printing, vacuum casting, sheet metal, injection molding and surface finishing from one ISO-certified team.
Manufacturing Services
Choose the right process
for your prototype or small batch
Jingrui Proto combines in-house manufacturing, DFM review and finishing support so your team can move from CAD to validated parts without managing multiple suppliers.
3D Printing
SLA, SLS, MJF, SLM and FDM for fast visual models, functional nylon parts and metal prototypes.
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CNC Machining
3-axis, 4-axis and 5-axis machining for aluminum, stainless steel and engineering plastics.
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Vacuum Casting
ABS-like and rubber-like polyurethane parts for 15-25 piece batches, review samples and bridge production.
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Sheet Metal
Laser cutting, bending, welding and powder coating for brackets, enclosures and equipment housings.
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Injection Molding
Rapid tooling and low-volume molding when the design is ready for production-like plastic parts.
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Die Casting
Metal casting support for durable housings, brackets and small-batch production components.
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One-Stop Prototyping
Integrated engineering, manufacturing, finishing and inspection support from prototype to low-volume build.
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Surface Finishing
Painting, anodizing, polishing, texturing, plating, silk-screen and pad printing for finished prototypes.
View Surface FinishesProcess selector
Not sure which process to choose?
Send your CAD, quantity, material target and finish requirement. Our engineers will compare process fit, tolerance risk, cost drivers and lead time before quoting.
Geometry
Size, wall thickness, detail, undercuts and assembly features.
Material
Metal, plastic, resin, nylon, rubber-like or production-like behavior.
Quantity
One-off prototype, 15-25 samples, pilot build or production batch.
Finish
Raw, painted, anodized, polished, textured or customer-ready.
Why Jingrui Proto
One team from DFM to finished parts
One-Stop
Prototype, tooling, production and finishing under one project flow.
Engineering
DFM feedback before production to reduce avoidable iteration.
Speed
Fast quoting and flexible scheduling for urgent prototype programs.
Quality
Inspection planning, CMM support and certified quality systems.
NDA
Confidential handling for product developers and engineering teams.
How It Works
From CAD upload to delivered parts
Upload
Send CAD files, drawings, quantity and target finish.
DFM
Engineers review geometry, tolerance and process risks.
Quote
Receive process recommendation, lead time and quotation.
Production
Manufacturing, finishing, inspection and delivery are coordinated together.
Materials
Engineering materials for real prototype decisions
Finishes
Surface options for fit, appearance and presentation
Industries
Built for engineering teams across demanding markets
Automotive
Interior, housings, ducts and validation parts.
Robotics
Frames, covers, brackets and end-use pilot parts.
Medical
Device housings, models and ergonomic validation.
Aerospace
Lightweight mockups and precision structural prototypes.
Electronics
Enclosures, buttons, connectors and display samples.
Industrial
Fixtures, equipment covers and low-volume components.
Real case studies
See how process choice changes project outcomes
Explore real examples across 3D printing, CNC machining, vacuum casting, finishing and low-volume manufacturing.
Robotics prototypes
Custom housings, brackets and test units for robotics projects.
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Aerospace models
High-detail prototypes for structure, form and presentation review.
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Electronics housings
Plastic and metal enclosure prototypes with production-like finish.
View casesQuality Assurance
Inspection planned around the part’s job
Jingrui Proto supports ISO quality systems, dimensional inspection, CMM checks, material and finish verification, and project-level inspection notes for critical features.
ISO Systems
ISO 9001, ISO 13485, IATF 16949 and ISO 14001 experience.
CMM & Inspection
Critical dimensions, first article checks and measurement reports when required.
Finish Control
Color, texture, visible face and assembly fit checks before shipment.
Factory Capability
Real equipment, workshop capacity and production video support
For complex programs, our team can share process photos, inspection details and production updates so your engineers know what is happening before the parts ship. Jingrui Proto is operated by Zhuhai Jingrui Additive Manufacturing Technology Co., Ltd., with manufacturing locations in Dongguan and Zhuhai, China.
FAQ
Common questions before requesting a quote
What files should I upload?
Send STEP, STP, STL, OBJ, X_T or native CAD files when available. Add a 2D drawing if tolerances, threads, inserts or surface requirements matter.
Can Jingrui Proto recommend the best process?
Yes. Share the quantity, material target, deadline and use case, and our engineers will compare 3D printing, CNC machining, vacuum casting, sheet metal or molding options.
Do you support surface finishing?
Yes. Painting, anodizing, polishing, texturing, plating, silk-screen printing, pad printing and assembly-ready finishing can be quoted with the part.
Can you handle confidential projects?
Yes. NDA handling and controlled project communication are available for product development teams.
Company Facts
Jingrui Proto at a glance
Jingrui Proto is the manufacturing brand of Zhuhai Jingrui Additive Manufacturing Technology Co., Ltd., founded in 2006. Manufacturing operations are based in Dongguan and Zhuhai, China, supporting rapid prototyping and low-volume manufacturing for overseas engineering buyers.
Founded
Founded in 2006 with long-running prototype and manufacturing project experience.
Legal Entity
Manufacturing brand of Zhuhai Jingrui Additive Manufacturing Technology Co., Ltd.
China Operations
Manufacturing operations in Dongguan and Zhuhai, China.
Capabilities
Rapid prototyping and low-volume manufacturing across 3D printing, CNC machining, casting, sheet metal, finishing and assembly support.
Rapid Prototyping Company in China
Prototype questions buyers ask before quoting
Jingrui Proto helps engineering buyers answer the practical questions behind an RFQ: which process fits the geometry, which material is realistic, what finish is needed, what dimensions are critical and when a prototype should move into low-volume manufacturing.
Which process fits my part?
Compare 3D printing, CNC machining, vacuum casting, sheet metal and injection molding by quantity, tolerance, material and surface finish.
Can one supplier handle the next stage?
Move from prototype review to low-volume manufacturing, finishing, assembly support and inspection without splitting the project across multiple suppliers.
Where is the proof?
Review case studies for robotics, medical, automotive and exhibition prototype projects where process choice, finish and delivery requirements shaped the build.
Ready to Start Your Next Project?
Upload your CAD files and receive manufacturing recommendations, lead time and a quotation from our engineering team.