01 · LSR Injection
LSR Injection Molding
300K-class cleanroom for medical, automotive and optical LSR. Vertical & horizontal machines, cold-runner valve-gate molds built in-house.
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Since 1998 · Dongguan, China
Precision Silicone & Rubber Solutions, Engineered for Your Industry.
From LSR injection molding to medical-grade silicone, optical LSR, foam, and engineering plastics — we deliver end-to-end manufacturing under ISO 9001, ISO 13485 and IATF 16949.
28+Years
13,000㎡Factory Area
400+Employees
60+QC Engineers
Core Capabilities
Six Product Lines, One Integrated Factory.
From raw compound to finished part — LSR injection, precision molds, optical silicone, medical-grade parts, silicone foam and plastic injection, all under one roof.
02 · Mold Making
Precision Mold Manufacturing
In-house tooling: 12 CNC machines, CMM inspection, 8 senior mold designers with 5–10+ years of experience in UG NX, Mastercam, SolidWorks.
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03 · Optical Silicone
Optical LSR Molding
RI 1.43–1.46, 84+ Shore A optical-grade LSR for LED lenses, light guides, and automotive optics. Replaces Dow / Wacker at 40% lower cost.
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04 · Medical Silicone
Medical-Grade Silicone
ISO 13485 certified. Biocompatible LSR and HCR parts for medical devices, FDA / LFGB compliant, full traceability via WMS + MES.
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05 · Silicone Foam
Silicone Foam Solutions
Four processes: calendering, extrusion, molding, die-cutting. For EV battery seals, thermal pads, gasketing, vibration damping.
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06 · Plastic Injection
Engineering Plastic Injection
PP, ABS, PC, PE and other engineering plastics. LSR-overmolding on plastic substrate for 3C, consumer and industrial housings.
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Applications
Trusted Across Eight Industries.
From EV battery seals to medical devices, our parts ship into the most demanding applications.
New Energy Parts
Industrial Parts
Auto Parts
Aerospace Parts
Household Parts
FDA / Medical Parts
Electronics Parts
Die-Cutting Parts
Factory Strength
13,000 ㎡ of Vertically Integrated Manufacturing.
Two buildings in Sankeng Industrial Park, Tangxia, Dongguan. Every process in-house — from compound mixing to final inspection.
- 12 CNC machines, 6 precision rubber mixing mills
- 48 rubber compression presses (50–300 ton)
- 43 rubber molding machines, 8 precision die-cutters
- 300K-class cleanroom for medical & optical LSR
- In-house LAB: flame retardant, salt spray, aging, humidity
Engineering Team
8 Senior Mold Designers. 60+ QC Engineers.
A dedicated design team with 5–10+ years of experience, fluent in Mastercam, UG NX, AutoCAD, SolidWorks and Pro-E. Professional document management system keeps your IP safe.
- 2 designers with 10+ years of mold design
- 6 designers with 5+ years of mold design
- CMM, 2.0/2.5 projector, microscope, roughness tester
- Full DFM feedback within 24 hours
Quality & Digital
ERP, WMS, MES — Full Digital Traceability.
From incoming raw material to finished goods, every batch is scanned and tracked. MES goes live June 2025 with PLM module for engineering change control.
- ERP covering sales, procurement, planning, production
- WMS with barcode scanning for full traceability
- Automatic rubber mixing + automated inspection machines
- Intelligent storage system under planning
Certifications
Certified for the Industries You Serve.
Quality systems audited and certified across medical, automotive, food-contact and environmental standards.
ISO 9001
Quality Management
ISO 13485
Medical Devices
IATF 16949
Automotive
FDA
Food & Medical Contact
LFGB
EU Food Contact
ROHS
Hazardous Substances
REACH
EU Chemical Safety
High-Tech
National Enterprise
Success Stories
Trusted by Leading Brands.
One-stop custom silicone and rubber solutions for global OEMs.
Get In Touch
Let’s Build Your Next Part Together.
Send us your drawing or requirement — DFM feedback within 24 hours.
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Phone / WhatsApp+86 189 2341 1368
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Emailwilliam@lsr-moulding.com · jay@lsr-moulding.com
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AddressBldg 2, Sankeng Industrial Park, Tangxia, Dongguan, Guangdong 523726, China