Engineered for
Safety. Built for Scale.
YMS provides end-to-end structural engineering for silicone baby products -- from functional analysis and wall-thickness optimization to multi-part assembly and mass production stability. Every geometry is designed to pass certification, tooling, and 100% inspection.
±0.1mm
Dimensional Tolerance
64+
Molding Machines
15yrs
OEM/ODM Depth
Structural DFM Report
Optimized geometry for injection stability & food-grade compliance.
Approved
01 -- Functional Analysis
Understanding How Every Part Must Behave.
Before a single line is drawn, we deconstruct the product into functional zones -- grip, seal, flex, and support -- and map how each interacts with an infant's motor skills, oral development, and daily use scenarios.
Function drives geometry.
Geometry drives moldability.
Use-Case Mapping
Grip, suck, chew, drop scenarios modeled against infant ergonomics.
Load & Stress Zones
Identify high-stress regions requiring reinforcement or flex relief.
Safety Compliance
Choke hazard, sharp edge & pinch-point analysis vs CE, FDA, LFGB.
DFM Feedback
Structured report with recommended geometry changes for moldability.
Reference Design Chart
02 -- Wall Thickness & Dimensions
Balance of Softness, Strength & Moldability.
Wall thickness dictates cure time, shrinkage, tear resistance and infant safety. Our engineers optimize thickness distribution to eliminate weak points, prevent flash, and guarantee dimensional stability within ±0.1mm.
- Uniform thickness zones to avoid sink marks & warpage
- Ribbed reinforcement for bite & impact zones
- Draft angles engineered for clean demolding
- Shrinkage compensation calibrated per silicone grade
03 -- Connection & Sealing
Leak-Proof, Secure, Easy to Clean.
From snap-fits between silicone and PP to compression seals in bottle nipples -- we engineer joints that stay leak-proof through thousands of use cycles and dishwasher runs.
Locking Interfaces
Undercut geometry designed for repeatable disassembly without permanent deformation. Ideal for detachable straws and bowl lids.
Leak-Proof Rings
Precision O-ring and lip-seal profiles calculated for silicone compression set, ensuring watertight bottles and cups.
Multi-Material Bonds
Silicone bonded to PP, PC, ABS or stainless steel via chemical primer + mechanical anchoring for zero-delamination.
04 -- Multi-Part Fit
Every Part Fits. Every Time.
Baby feeding sets often combine 3-7 components across different materials. We build tolerance stack-up models to guarantee that lids screw on smoothly, straws seal tight, and lids never wobble -- batch after batch.
Component A
Silicone Lid
Ø 65 ± 0.08 mm
Component B
PP Bowl Rim
Ø 64.8 ± 0.05 mm
Component C
Straw Insert
Ø 8.0 ± 0.05 mm
Assembly
Zero Gap Fit
Total stack ≤ 0.15 mm
05 -- Material Matching
The Right Silicone for the Right Structure.
Solid silicone rubber (HCR) or liquid silicone rubber (LSR)? Shore 30A or 60A? Our engineers select the exact grade based on geometry demands -- tear strength, elongation, clarity and compression set -- for every function.
Grade
LSR 30A
Soft, translucent. Ideal for pacifier nipples & bottle teats.
Grade
LSR 50A
Balanced flex & durability. Best for cups, spoons, teethers.
Grade
HCR 60A
High tear resistance for bite toys and reinforced lids.
Grade
Custom Blend
Bespoke Shore hardness, color-match, & anti-microbial additives.
06 -- Documentation
Drawings That Speak the Language of Production.
Every project ships with a full technical dossier -- 2D dimensioned drawings, 3D CAD (STEP/IGES), BOM, tolerance sheets, and material specifications -- ready for tooling, inspection and certification review.
2D
Dimensioned drawings
3D
STEP / IGES / STL
BOM
Bill of Materials
SOP
Inspection procedures
PROJECT_BOTTLE_v2.4.pdf
Part No.
YMS-BB-2405
Rev.
02
Material
LSR 50A
Tolerance
±0.1mm
Finish
Matte SPI-B3
07 -- Sample Validation
Prototype Once. Validate Thoroughly.
Every T1 sample undergoes structured validation across function, durability and safety before mold refinement is approved. This front-loaded testing eliminates costly rework at mass production.
Dimensional Check
CMM measurement vs drawings, verifying every critical tolerance point.
Functional Test
Seal, snap, flex and load simulation under real-world use conditions.
Durability Aging
Constant temp/humidity, tear, tensile and 500+ dishwasher cycles.
Safety Certification
FDA, LFGB, CE, EN71 testing coordinated with accredited labs.
08 -- Mass Production
Stability at Scale, Batch After Batch.
Structural engineering doesn't end at approval -- it continues on the shop floor. Our SPC process, 100% inspection line and mold-maintenance schedule keep tolerances tight even at 500,000 units and beyond.
Production KPI Snapshot
99.4%
Yield Rate
0.08mm
Avg. Deviation
64
Molding Machines
24/7
Continuous Line
09 -- Apply Now
Request a Structural Engineering Evaluation.
Share your product concept, sketches, or existing samples. Our engineering team will respond within 24 hours with a preliminary DFM feasibility analysis -- free of charge.
Phone / WhatsApp
+86 134 1898 3587Headquarters
No. 50, Jinyuan New Road,
Shilongkeng Village, Liaobu Town,
Dongguan, Guangdong, China