🏭 Xiangchu Rubber · Global Trade Division
Liquid Silicone Rubber Parts,
Engineered to Spec.
LSR injection molding, solid silicone and overmolding for medical, baby care, automotive and electronics — with in-house tooling and class-100,000 cleanroom production.
85T–160T LSR Injection Molding Machines
85T–160T LSR Injection Molding Machines
Precision Silicone for 19+ Industries
From FDA-regulated baby care to EV battery sealing — we match compound, process and certification to your market.
Why Global Buyers Choose Churub
In-House Precision Tooling
CNC machining center delivers mold design to first article in days — not weeks. Full control of tooling cost and revisions.
LSR Liquid Injection Molding
85T/120T/160T vertical LSR presses with cold-runner tooling for flash-free, high-consistency precision parts.
One-Stop from Drawing to Volume
Design review, DFM feedback, tooling, sampling, molding, post-cure and 100% inspection — all under one roof.
Medical & Food Compliance
Class-100,000 cleanroom; FDA 21 CFR 177.2600, LFGB, EU 1935/2004 compliant compounds with full lot traceability.
Featured Products
Representative parts — all customizable by drawing or sample.
LSRLSR Medical Grade Gasket
Medical-grade LSR gasket, platinum-cured, biocompatible, -50°C to 230°C
LSRLSR Diaphragm for Automotive Sensors
Precision LSR diaphragm for automotive sensors, chemical resistant, high elasticity
LSRLSR Baby Bottle Nipple
Food-grade LSR baby bottle nipple, soft-touch, heat-resistant 230°C, BPA-free
LSRLSR Waterproof Seal for Electronics
IP68 waterproof LSR seal for electronics, precision molded, UV resistant
Solid SiliconeSolid Silicone O-Ring
Solid silicone O-ring, compression molded, wide temperature range, ozone resistant
Solid SiliconeSolid Silicone Rubber Gasket
Solid silicone rubber gasket, high-temperature resistant, food-grade, custom die-cut
OvermoldingRubber-Metal Bonded Seal
Rubber-metal bonded seal, overmolding process, chemical bonding, zero delamination
OvermoldingPlastic-Silicone Composite Seal
Plastic-silicone composite seal, overmolding, precise assembly features, no adhesive needed
Three Core Product Lines
LSR (Liquid Silicone Rubber) Parts
Precision liquid injection molded silicone components for medical, baby care and electronics.
Explore →Solid Silicone Rubber Parts
Compression & transfer molded silicone seals, grommets, strips and dampers.
Explore →Silicone Overmolding & Insert Molding
Chemically bonded silicone-to-metal and silicone-to-plastic composite parts.
Explore →From Drawing to Delivery in 4 Steps
Drawing / Sample
Send 2D/3D drawings or a physical sample — STEP, IGES, PDF all accepted.
DFM & Quote
Design-for-manufacturing feedback plus a detailed quote within 24 hours.
Tooling & Sample
In-house CNC tooling; first articles shipped for approval.
Mass Production
Injection/compression molding, post-cure, QC, global shipping.
Proven Delivery, Documented Results
Pacifier Reformulation: Passing EN 1400 & FDA Double Certification
EV Battery Pack Seals: Compression Set Control at -40°C
Menstrual Cup Launch: From Concept to FDA & EU MDR-Ready in 90 Days
Cold-Shrink Cable Accessories: Grid-Ready Silicone Termination Tubes
Latest Insights from Our Engineering Team
Material selection, tooling economics and process know-how from the factory floor.
Notice on the Mid-Autumn Festival and National Day Holidays in 2026
The golden autumn brings a refreshing feeling, and the fragrance of osmanthus flowers fills the air. On the occasion of the Mid Autumn Festival reunion and the arrival of the National Day, according to the national legal holiday arrangements, in combination with the actual production and operation of the company and the customer's order delivery needs, the arrangements for the Mid-Autumn Festival and National Day holidays in 2026 are hereby notified as follows:
Read article →Why Source LSR from Xiangchu Rubber in China? A Buyer's Due-Diligence Checklist
What separates a five-year silicone partner from a two-year quote: engineering depth, cleanroom control, verifiable registration and documentation-first sourcing.
Read article →Inside Xiangchu Rubber: Company Background, Professional Depth and the Churub Brand
A transparent look at our legal entity, equipment decisions, quality system — and what our registered Churub trademarks mean for buyers.
Read article →Need custom silicone parts?
From prototype samples to volume production — send us your drawing or sample for a quote within 24 hours.