Custom Plastic Parts Manufacturer · China
Injection Molding & Precision Tooling.
Custom Plastic Parts — From Design to Delivery.
Injection molding, rapid tooling, and assembly services with 30+ years experience. English-speaking project management, fast communication, and reliable delivery.
JBRplas is a Shenzhen-based plastic injection molding manufacturer with over 30 years of production experience. We operate 27 injection molding machines (90–650 tons), 9 CNC machining centers, and an in-house toolroom under ISO 9001 and ISO 13485 certified quality systems, processing over 500 engineering resins with full material traceability, CMM inspection, and PPAP documentation.
Our services cover multi-cavity production tools with hot runner systems, clean room molding (ISO 8 / Class 100,000), overmolding and insert molding, and value-added assembly — all under one roof, with no third-party suppliers in the production chain. Every program starts with a documented DFM review and Moldflow simulation. Send your CAD files for DFM feedback, pricing, and lead time within 24 hours.
Injection Molding & Custom Parts Manufacturing
Injection molding, custom plastic parts manufacturing, rapid tooling, and assembly services for global OEM clients.
Custom Plastic Injection Molding Services JBRplas operates a 24/7 injection molding facility in …
High Volume Plastic Injection Molding At 100,000 pieces per year, a molding program becomes an …
Rapid Tooling & Prototype Injection Molding When you need injection-molded parts for product …
Industries We Serve
From medical devices to automotive components — precision plastic parts manufacturing across 7 key industries, backed by 30+ years of sector-specific expertise.
Plastic injection molding for smart home devices — hubs, sensors, switches, plugs, and cameras. UL94 V-0, Class A finish, high-volume production from Shenzhen.
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JBRplas manufactures precision plastic injection molds and molded parts for automotive OEM suppliers — interior trim, connector housings, HVAC components, and structural brackets.
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Plastic injection molded enclosures, housings, and components for consumer electronics and home appliances. Flame-retardant resins, UL94 V-0, Class A finish. Shenzhen factory.
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JBRplas manufactures medical-grade plastic injection molds and molded components — FDA compliant resins, ISO 10993 biocompatible materials, clean room molding available.
Learn MoreProven Manufacturing — 30 Years, ISO Certified
Everything you need to validate a manufacturing partner, in one place.
27 injection presses (90–650T), 9 CNC centers, 500+ resins under one roof in Shenzhen.
ISO 9001 & 13485 certified. Full CMM inspection, material traceability, PPAP documentation.
23 real OEM projects — automotive, medical, electronics, toys, and financial devices.
From RFQ to delivery — DFM, tooling, T1 samples, production, inspection, and shipping.
Real Projects, Measured Results
OEM injection molding and tooling projects from our Shenzhen factory floor — each with the technical specs procurement engineers need to evaluate.
JBRplas manufactured a PC mold for a smart portable meeting recorder housing — 47×85×10 mm at 14 g, four-direction slide mechanism, CAE draft analysis, and 8-point venting for optical-grade surface quality.
DFM-driven 1+1+1 multi-part trial mold for an automotive OBD diagnostic device — optimizing draft angles, wall thickness, micro-hole manufacturability and ejection design for 50,000-shot production validation.
JBRplas designed and manufactured a 4-cavity precision injection mold for a wireless microphone magnetic charging dock housing — 30×20×10mm PC+ABS at 2g with Class A cosmetic surface requiring zero sink marks, zero weld lines, and uniform gloss, achieved through optimized gate positioning, conformal cooling, SPI A1 mirror polishing, and DFM draft angle refinement for a consumer electronics brand.
Engineering Team Behind Every Mold
30+ years of mold-making experience. Engineering-led support from DFM to mass production.
Manufacturing Insights & Technical Guides
Two-shot molding is a process decision — the 2K mold is what makes that decision real. A 2K tool …
An OEM sourcing director is evaluating three locations for a plastic housing program: China, Mexico, …
Two buyers order the same part from two suppliers. Buyer A pays $6,000 for the mold. Buyer B pays …