Total Manufacturing Solution For Plastic, Rubber Molds, And Parts
One-Stop Destination For Top-Quality Injection Molding
Our services encompass a variety of offerings within the realm of manufacturing and fabrication.
Precision Mold Design And Manufacture
Our Mold Technology Team Comprises Dozens Of Seasoned Engineers, Each Wielding Over 20 Years Of Expertise. Their Mastery Ensures...
Explore precision mold design and manufacture
Over Molding & Insert Over Molding Technology
Over molding is an injection molding process used to mold one plastic (commonly a rubber-like plastic called TPE) over...
Explore custom overmolding technology
Double Injection Molding /2K- Shots Molding Technology
Double injection molding is a plastic molding solution that two different materials or same material with different color are...
Explore double injection molding
Full/Semi assembly and IP-level waterproof solution
Our research and development team can provide a complete solution for all the waterproofing products. They can also provide...
Explore assembly and waterproof solutions
Injection molded parts and Liquid Silicone Rubber Experts
Almost 90% of our productions have been transformed to be automatic production with robots.Our highly professional production team uses...
Explore rubber products manufacturing
Optical, Sensor, Fresnel design and manufacture specialist
Home Technical Advantage Specialist in Optical, Sensor, And Fresnel Design Specialist in Optical, Sensor, And Fresnel Design Rilong is...
Explore optical design capabilitiesAbout us
Since 1990, Rilong Precision Mold has excelled in crafting plastic and silicone rubber molds and products. Our top-tier mold engineering expertise ensures optimal designs and high manufacturing standards. Our in-house advanced equipment guarantees precision and flawless surfaces. With a robust quality control system, we confidently serve customers, prioritizing their satisfaction. The key factor in helping us to maintain excellent quality is the use of ISO9001, ISO14001, and IATF16949 throughout all of our business, our factory has been awarded the UL-approved factory, and we carry out 6S management system in our factory.
Project Flow Chart
Define the Product
Our product designer team will work closely with you to define the product design specifications.
Project Plan
A project plan outlines the scope, tasks, timeline, resources, responsibilities, risks, stakeholder communication, review points, and budget
DFM Report
A DFM report assesses a product's design for efficient, cost-effective manufacturing, analyzing process, material, geometry, tolerances, and costs.
Mold 2D/3D Design
Mold 2D/3D Design involves creating, simulating, and testing a mold design using CAD software for efficient and accurate manufacturing.
Customer Approval of Mould Design
The Customer Approval of Mould Design stage involves customer review and approval of the mold design before manufacturing begins.
Mould Production
Mold Production involves mold design, material selection, machining, assembly, and testing for mass production
Mould Trial
The Mould Trial tests injection molds, producing and inspecting parts to ensure design specifications and quality before full-scale production.
Sample Inspection
Sample Inspection involves examining prototypes and initial production samples for design accuracy, quality control, and continuous improvement.
Customer Approval of Sample
The Customer Approval stage involves prototype presentation, customer review, feedback and revisions, and final approval.
Mould Delivery
Mould Delivery involves mold packing and delivery.
Production Line
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With over 30 years of manufacturing experience
Let's Make Cool Things Happen
Contact Us
Phone: +86 183-0011-5585
Visit Us
Electronica 2024, Munich | November 12-15.
RiLong showroom at Hall C6, Booth 141-7.
Our Socials
Engineering Decision Guides & Manufacturing Deep Dives
In-depth technical guides, material compatibility charts, and DFM guidelines authored by Rilong senior tooling engineers to assist global hardware teams in tooling procurement.
Overmolding Metal with Plastic: Complete DFM & Insert Design Guide
Knurling retention geometries, Chemlok primers, CTE mismatch mitigation, and robotic automated insert overmolding.
IP68 Waterproof Electronics Overmolding: Low-Pressure vs. LSR & TPE
Low-Pressure Molding (LPM) vs high-pressure encapsulation for delicate PCBs, sensors, and waterproof cable strain reliefs.
2K Two-Shot Injection Molding vs. Overmolding: Selection Matrix
Side-by-side comparison of 2K rotary platen tooling vs pick-and-place overmolding, volume break-even, and ±0.01mm tolerances.
LSR Injection Molding & Shore A 45 Tactile Keypad Engineering
Flash-free cold-runner LSR tooling, Shore A 45±5 durometer snap ratios, conductive carbon pills, and laser etched legends.
SPI Mold Surface Finish Standards (A-1 Mirror to D-3) & Rapid Tooling
Complete SPI surface finish chart (Ra 0.012–0.025 μm), draft angle rules, S136 ESR steel, and 20-day rapid mold turnaround.
Need an Engineering Review for Your 3D CAD Files?
Send your STEP/IGES/X_T models for an itemized DFM analysis, mold structure proposal, and quotation within 24 hours.
Bring your product idea to life in as soon as 5 days!
