Liquid Silicone
Rubber Molding
Precision LSR injection molding for high-consistency, food-grade, and medical-grade silicone components. Fully automated, closed-loop production from 32 dedicated liquid silicone lines.
- Dedicated Lines
- 32
- Tolerance
- ±0.1mm
- Experience
- 15yrs
Automated Molding,
Closed-Loop Precision
Our LSR cells are fully automated -- from material metering and injection to demolding and vision inspection. This eliminates human variability and ensures consistent output across millions of cycles.
Metering System
Precision 1:1 A/B component pumping with real-time ratio monitoring.
Servo Injection
Energy-efficient servo units with closed-loop pressure and velocity control.
Robotic Demolding
6-axis robots for burr-free part removal and automated placement.
Vision Inspection
Inline AOI cameras verify dimensional and cosmetic criteria on every shot.
Engineered for Precision,
Complexity & Consistency
LSR is the ideal choice when products demand micro features, biocompatibility, or high-volume dimensional stability -- far beyond what compression molding can deliver.
Baby & Feeding Products
Nipples, pacifiers, teethers -- micro features, soft touch, 100% food-safe surfaces.
Kitchen & Bakeware
Collapsible cups, baking molds, spatulas with complex geometries and thin walls.
Seals & Gaskets
Thin-wall O-rings, membranes, and compression seals with repeatable Shore A.
Wearables & Electronics
Watch straps, button pads, waterproof covers -- soft-touch and durable.
Personal Care
Facial brushes, massage tools, applicators with skin-safe LSR grades.
Home Lifestyle
Placemats, coasters, caddies -- unified color, soft hand feel, long lifespan.
Cold Runner &
Parameter Mastery
Cold runner systems eliminate material waste by keeping LSR fluid in the runner and curing only within the mold cavity -- a critical advantage for scaling production economically.
-
Zero-Waste Cold Runner
Needle-valve gating with independent temperature control per nozzle.
-
In-House Mold Making
S136 / NAK80 steel tooling with CNC + EDM precision machining.
-
Closed-Loop Parameters
Real-time monitoring of temperature, pressure, cure time, and shot weight.
Cold runner retains uncured LSR for the next cycle.
Multi-zone heating ensures uniform cure profile.
High-grade steel tooling for mass-production life cycles.
Lights-out production for consistent output.
Overmolding, Multi-Color &
Insert Molding Capabilities
Integrate silicone with plastics, metals, and multiple color grades in a single shot -- reducing assembly steps and improving bond reliability.
Overmolding (LSR + Plastic)
Chemical and mechanical bonding of LSR onto PC, PA, PBT, and other engineering plastics for ergonomic handles and sealed enclosures.
Multi-Color Molding
Two-shot (2K) LSR molding for color blocking, soft-hard combinations, and brand differentiation without secondary assembly.
Insert Molding
Encapsulation of metal inserts, PCB components, or textile substrates for medical, wearable, and automotive applications.
Efficiency, Cost &
Project Conditions
LSR projects deliver the lowest unit cost at scale. Below are the typical conditions where LSR injection molding is the right engineering decision.
Discuss your projectAnnual Volume ≥ 50,000 pcs
LSR tooling investment pays back quickly at mid-to-high volumes. Below this threshold, compression molding may be preferable.
Cycle Time 30-90 seconds
Fast curing LSR grades combined with cold runners enable rapid cycles with minimal operator intervention.
Tooling Lead Time 25-45 days
From DFM review and T0 trial to validated production tool -- transparent milestones at every stage.
Material Cost Optimization
Up to 15% material savings via cold runner, plus energy savings from automated servo-driven cycles.
Sampling in 7-15 Days
Rapid prototyping with soft tooling available before full production tool investment.
Dimensional, Visual &
Process-Level QC
Every LSR line is backed by SOP-driven inspection and ISO 9001 process control. QC engineers with 5+ years of experience are embedded on each production line.
Dimensional
- • CMM & 2D optical measurement
- • ±0.1mm tolerance verification
- • First Article Inspection (FAI)
- • SPC data per shift
Visual / Cosmetic
- • AOI vision systems inline
- • AQL Level II sampling
- • Flash, bubble, color consistency
- • Light-booth color matching
Process Monitoring
- • Shot weight tracking
- • Pressure & temp logging
- • Cure-time auto-adjustment
- • ISO 9001 traceability
Get your
LSR solution.
Share your product requirements and we'll return a DFM review, tooling estimate, and unit cost within 48 hours.
-
Emailedwin@gd-yums.com
-
Phone / WhatsApp+86 13418983587