LSR Liquid Silicone Baby Bottle — The Ultimate Weaning Aid PPSU Bottle with Embedded LSR Overmolding
FEATURES
Hard Infrastructure — Building the Foundation of Trust
1.1 Precision Tooling Equipment
The quality of any injection molded product begins with the precision of its mold. Ansix Tech has invested significantly in state-of-the-art tooling equipment to ensure every mold we produce meets the highest standards of accuracy and durability.
What we use and what it means for you:
Five-axis high-speed machining centers capable of machining complex curved surfaces with 0.002mm precision. For your LSR baby bottle mold, this means parting lines are so smooth they are virtually invisible—no flash, no sharp edges that could irritate an infant‘s mouth, no secondary trimming required.
Slow wire EDM (Electrical Discharge Machining) capable of cutting 0.03mm micro-holes and narrow slots. When we need to create the intricate venting channels or precision alignment features in your mold, this technology prevents thin-wall deformation that could compromise part consistency.
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Mold Description
Product Materials:
LSR SILICONE
Soft rubber: silicone
Mold Material:
S136ESR
Number of Cavities:
1*1
Glue Feeding Method:
Hot runner
Cooling Method:
Water cooling
Molding Cycle
22.5s
- The mold manufacturing process and product material selection
CNC EDM spark erosion machines for creating complex cavity geometries that cannot be reached by conventional cutting tools. The textured surfaces required for LSR adhesion to PPSU are precisely replicated cavity by cavity.
In-house electrode machining center—critically, we produce our own electrodes in-house. When a mold requires repair or modification, we don‘t wait for third-party suppliers; the entire process stays within our facility, reducing turnaround time from weeks to days.
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Injection Molding Machine Fleet
Ansix Tech operates 260 injection molding machines across four production bases in China and Vietnam, with lock-force tonnage ranging from 30 tons to 2,800 tons. This range allows us to cover everything from small precision components to large structural parts.
Key machine partners include Japan‘s Fanuc, Sumitomo, Toshiba, and Nissei; Engel; and Germany‘s Arburg—the latter specializing in liquid silicone injection molding with two-component capabilities. China‘s Haitian and Victor Taichung machinery round out our domestic lineup.
Why this matters to you: All our machines feature fully servo-electric drives achieving repeatable precision of ±0.1%. Whether we run 100 parts or 100,000 parts, every shot is statistically identical to the first. This consistency is the foundation of defect-free production.
1.3 Inspection and Metrology Equipment
Quality is not an afterthought at Ansix Tech—it is engineered into every step of the process.
CMM (Coordinate Measuring Machines) with touch-probe and scanning capabilities. Every mold we ship undergoes a full dimensional inspection, with a complete dimensional report provided to you. Key dimensions are validated to CPK ≥ 1.33 before production begins.
Optical imaging systems for rapid, non-contact measurement of complex geometries. When we need to verify the LSR sealing lip profile or the bottle thread dimensions, optical inspection provides reliable, repeatable data in seconds.
2.5D vision measurement systems for capturing both 2D contours and 3D features in a single inspection cycle.
1.4 Quality Certifications
Ansix Tech maintains ISO 9001, IATF 16949, ISO 13485, ISO 14001, and BSCI certifications, along with an ISO 8 Cleanroom compliant with US FDA 510K medical-grade standards. For LSR baby bottle manufacturing, ISO 13485—the medical device quality standard—is particularly relevant, as feeding products for infants require the same rigorous material traceability and process validation as medical components.
Chapter II: Mold Manufacturing Excellence — Turning Steel into Performance
Mold manufacturing is where technical precision meets practical application. At Ansix Tech, we view every mold not as a block of steel, but as a revenue-generating asset—a tool designed for maximum uptime, minimum maintenance, and consistent output over millions of cycles.
2.1 Mold Steel Selection and Material Quality
The longevity of your mold depends entirely on the steel we choose. We maintain an extensive inventory of premium mold steels, each selected for specific performance characteristics:
Steel Grade Key Properties Application in LSR/PPSU Mold
S136 / 4Cr13 (Stavax ESR) High corrosion resistance, excellent polishability (Ra < 0.05μm) Cavities and cores for high-gloss bottle surfaces
2344 / H13 / 8407 High toughness, excellent heat-check resistance LSR injection components subject to thermal cycling
2343 / SKD61 Balanced toughness and wear resistance General-purpose cavities
NAK80 Pre-hardened, excellent machinability, high polishability Prototype molds and short-run production
SKD11 / DC53 Superior wear resistance Sliders, lifters, and components subject to sliding wear
M340 Premium corrosion resistance for medical/food contact LSR flow channels and medical-grade cavities
9Cr18 High hardness, excellent corrosion resistance Precision core pins and small-diameter features
What this means for you: For your PPSU baby bottle mold—which will be subjected to injection temperatures exceeding 350°C—we recommend S136 for cavities requiring a mirror finish, combined with H13 for the core system where thermal cycling is most severe. We provide full material certification reports including heat treatment curves, so you have complete traceability back to the original mill.
2.2 Dimensional Accuracy and Tolerances
Dimension Type Achievable Tolerance Customer Value
General structural features ±0.05mm Reliable assembly, no rework
Precision threads and sealing surfaces ±0.01mm to ±0.005mm Perfect seal every time, no leaks
LSR overmolding pockets ±0.01mm Consistent bond line, no flash
Critical engagement features CPK ≥ 1.33 Statistical confidence in every batch
2.3 Mold Types and Configurations
For LSR baby bottle applications, we typically deploy one of three mold configurations:
Multi-cavity cold-runner molds (4, 8, 16, or 32 cavities): The standard choice for high-volume LSR baby bottle production. Cold runners keep LSR material at a low temperature until injection, preventing premature curing. This configuration achieves zero material waste and enables fully automated production cycles.
Hot-runner molds for PPSU base injection: PPSU—with its melting temperature of 330–390°C—requires hot-runner systems to maintain melt temperature and prevent premature freezing. Hot runners reduce scrap (no runner to trim) and improve fill balance across all cavities.
Two-component / overmolding molds: For full integration of PPSU base and LSR overmold in a single machine cycle. This is the most advanced configuration, requiring precise timing and temperature control to achieve optimal chemical/mechanical bonding between the two materials.
2.4 Gate and Runner System Design
The gate and runner system determines how material flows into the cavity—and thus directly impacts part quality, cycle time, and material waste.
For PPSU injection: Based on BASF‘s Ultrason® P guidelines, we specify full-round runner diameters of ≥ 6mm to minimize flow resistance. Gates are sized to at least 80% of the maximum wall thickness. Edge gates or direct sprue gates are preferred to maintain adequate packing pressure throughout the fill cycle.
For LSR injection: LSR has a significantly lower viscosity than PPSU (about 250–10,000 psi injection pressure versus 10,000–20,000 psi for PPSU). This low viscosity is a double-edged sword—it allows LSR to flow into intricate features, but it also makes the material prone to flash and leakage. For this reason, we use pin-point gates (0.5–1.5mm diameter) and submarine gates to create a self-trimming effect at ejection, eliminating secondary deflashing operations.
2.5 Cooling System Design — The Heart of Cycle Time Efficiency
Cooling typically accounts for 50–80% of the total injection molding cycle. A well-designed cooling system directly translates to higher output, lower per-part cost, and better dimensional stability.
Our approach to cooling design:
Conformal cooling channels machined directly into the mold core and cavity blocks follow the contour of the part—unlike traditional straight-drilled channels, conformal cooling delivers uniform temperature across complex geometries. For the bulbous shape of a baby bottle, conformal cooling can reduce cooling time by 20–35%.
Partitioned temperature control using independent oil temperature controllers for different mold zones. The PPSU cavity requires mold temperatures of 140–180°C (achieved via oil circulation), while the LSR cavity may require 150–200°C for optimal crosslinking. Our mold designs incorporate completely isolated thermal zones so these temperature regimes do not interfere with each other.
Beryllium copper inserts for cores and areas where heat builds up fastest. Copper’s thermal conductivity is 3–5 times that of tool steel, pulling heat away from the part 3–5 times faster.
Thermal insulation plates between the mold and machine platens to prevent heat loss to the press, reducing energy consumption and maintaining temperature uniformity.
2.6 Ejection System Design
The ejection system must remove the finished part cleanly without causing deformation—particularly important for LSR overmolded components where the silicone rubber can stick to the cavity surface.
Design features we implement:
T-shaped guide pins instead of cylindrical guide pins to prevent misalignment under thermal expansion
Air ejection (air poppets) for LSR cavities—compressed air breaks the vacuum seal between the cured silicone and the cavity wall, lifting the part off without mechanical force
Sleeve ejectors for deep-cup geometries like bottle bodies—the ejector sleeve pushes the entire perimeter simultaneously, distributing ejection force evenly to prevent part distortion
Ejector pin layout optimized to avoid visible witness marks on aesthetic surfaces—pins are placed on hidden surfaces or under the LSR overmold area where marks will be invisible to the end user
2.7 Mold Life Expectancy and Maintenance
We specify mold life based on the materials being processed and the mold steel used:
Processing Material Mold Steel Guaranteed Mold Life
PPSU bottle base (with glass fiber reinforcement) S136 hardened to 48–52 HRC 500,000 shots minimum
PPSU (standard, unfilled) S136 / H13 1,000,000+ shots
LSR overmolding (on PPSU substrate) H13 / 8407 500,000 shots minimum
What you can count on: Every mold we deliver includes a complete set of spare wear parts—ejector pins, core pins, and other high-wear components—shipped with the mold. We provide periodic mold health checks at 200,000-cycle intervals and offer lifetime repair services at cost, not markup.
2.8 Moldflow Analysis — Predicting Problems Before Steel is Cut
Before any steel is machined, we subject your part design to comprehensive Moldflow analysis. This simulation-driven approach identifies and resolves potential manufacturing issues at the digital stage, where changes cost nothing, rather than after the mold is built, where modifications can cost tens of thousands of dollars.
What Moldflow analysis reveals and how it benefits you:
Melt-front advancement—we can see exactly how PPSU or LSR will flow through the cavity, identifying areas where flow might stall or race ahead
Weld line prediction—in multi-gate configurations, Moldflow shows precisely where two melt fronts will meet, allowing us to relocate gates to move weld lines to non-critical areas
Air trap identification—locations where escaping air cannot reach a vent are shown in bright red; we then either add vents or modify flow dynamics to push air toward existing vents
Pressure distribution—we can see if injection pressure is adequate to fill all cavities completely
Sink mark prediction—areas where wall thickness transitions create differential shrinkage appear clearly in simulation
Temperature distribution—cooling efficiency is visualized, allowing us to optimize cooling channel placement
The customer value: Moldflow analysis eliminates the risk of opening a mold only to discover it will not fill properly, will produce visible weld lines on aesthetic surfaces, or will trap air that burns the material. We provide you with a full DFM (Design for Manufacturing) report before we quote—this report includes all simulation results, recommended design modifications, and a risk assessment that you can use to make informed decisions about your product design.
Chapter III: Injection Molding Process Control — Eliminating Quality Anxiety
At Ansix Tech, we recognize that our customers‘ greatest concerns fall into four categories: sink marks and surface defects, flash and excess material, dimensional instability from batch to batch, and color inconsistency. The following sections detail how our process controls address each of these concerns systematically.
3.1 Process Standardization and MES Integration
All 260 of our injection molding machines are connected to a centralized MES (Manufacturing Execution System). Process parameters—including barrel temperatures, injection pressure, injection speed, hold pressure, back pressure, mold temperature, cure time, and cooling time—are locked within the system.
Access control: Only authorized process engineers can modify parameters. Every parameter change is logged with timestamp, operator ID, and reason for change. Batch records are fully auditable.
First-article and last-article inspection: Each production batch begins with a first-article inspection—measurement of every critical dimension on the first shot. The same inspection is performed on the last shot of the batch. If the measurements from first and last articles are statistically identical, the batch is released. If not, we investigate root cause and implement corrective action before shipping.
3.2 PPSU Injection Molding — Process Parameters and Challenges
PPSU is a demanding material that requires rigorous process control. Its high melt viscosity and high processing temperature range demand specialized equipment and precise parameter management.
Pre-drying (Critical First Step): PPSU is highly hygroscopic and readily absorbs atmospheric moisture. Moisture causes hydrolytic degradation during injection—resulting in silver streaks, bubbles on the part surface, and severe loss of mechanical strength. Our protocol:
Drying temperature: 140–150°C
Drying duration: Minimum 4 hours, using desiccant dryers with dew point ≤ -40°C
Target moisture content: < 0.02% (food safety standard)
Barrel temperature profile: PPSU melts at 300–350°C and degrades above approximately 400°C. We use a four-zone heating profile:
Feed zone (rear): 240–260°C—gradually preheating pellets to prevent bridging and clumping
Compression zone: 280–300°C—initial melting and compression
Metering zone (front): 320–350°C—complete melting to a uniform, stable melt
Nozzle: 350–380°C—delivering fully molten PPSU to the mold
Melt residence time: We maintain barrel capacity utilization between 30% and 60%, limiting melt residence time to ≤ 15 minutes. Extended residence at high temperatures causes thermal degradation, discoloration (darkening from amber to brown/black), and gas evolution that creates bubbles and voids in the finished part.
Injection pressure and speed: PPSU’s high melt viscosity requires relatively high injection pressure—typically 80–120 MPa for general applications, increasing to 100–140 MPa for thin-wall or complex parts. Injection speed is set to medium-high to fill the cavity before the melt begins to cool and increase viscosity.
Mold temperature (PPSU cavity): 140–180°C, controlled via oil temperature units (never electric heaters, which create uneven temperature profiles). Maintaining a high and uniform mold temperature is essential for achieving low residual stress, good surface finish, and dimensional stability.
Packing and holding pressure: Set at 40–60% of injection pressure. PPSU has low and uniform shrinkage—excessive holding pressure leads to overpacking, high internal stress, and potential post-mold deformation.
3.3 LSR Injection Molding — Process Parameters and Challenges
LSR is supplied as a two-part system—Part A (platinum catalyst) and Part B (crosslinker). These components are mixed at a precise 1:1 ratio using an automated metering and mixing system, then passed through a static mixer for homogenization before entering the injection barrel.
Key LSR processing parameters:
Parameter Typical Range Customer Impact
Injection pressure 50–150 bar (725–2,175 psi) Low pressure minimizes mold deflection and flash
Cure temperature 150–200°C Higher temperature = faster cure = shorter cycle time
Cycle time (per shot) 10–90 seconds (depending on wall thickness) Faster cycles = higher daily output = lower cost per part
Curing Platinum-catalyzed addition cure No byproducts; no residual volatiles; fully food-safe
Low viscosity property: LSR has inherently low viscosity (approximately 1/10th the viscosity of typical thermoplastics). While this enables LSR to flow into fine details and overmold complex geometries, it also makes the material prone to leaking past seals and flashing at the parting line. We compensate with precise mold clamping force (2–5 tons per cavity) and shut-off surfaces machined to 0.005mm flatness.
The overmolding challenge: For LSR overmolding onto PPSU, the PPSU substrate must be maintained at an elevated temperature (typically 80–120°C) before LSR injection. When the cooler LSR (150–200°C injection temperature) contacts the warmer PPSU surface, heat transfer initiates curing from the interface outward—creating the strongest possible bond between materials.
3.4 Dimensional Stability Control
Batch-to-batch dimensional variation is one of the most frustrating issues in injection molding. Here is how we eliminate it:
Real-time feedback systems: Every injection molding machine is equipped with ultrasound wall-thickness sensors that measure the actual thickness of the part during cooling. This measurement is fed back to the control system, which automatically adjusts packing pressure to compensate for any deviation from target.
Mold-mounted temperature and pressure sensors: For critical applications, we install cavity pressure sensors and thermocouples directly in the mold. These sensors provide real-time data on what is happening inside the cavity during every shot—allowing us to detect and correct deviations before they produce out-of-tolerance parts.
Partitioned mold temperature control: The mold is divided into independent thermal zones, each with its own temperature controller. Type-side and core-side temperatures are maintained within ±2°C of each other—a crucial requirement for preventing warpage and distortion in thin-walled parts.
Proven performance: In a recent validation run of a medical device housing (comparable geometry complexity to a baby bottle), we produced three consecutive production batches with critical hole-to-hole spacing variation ≤ 0.02mm. For reference, this is less than the thickness of a human hair (0.04–0.10mm).
3.5 Appearance Quality Standards
Your customers see the bottle‘s appearance first. Surface defects—even those that do not affect functionality—create an immediate impression of poor quality.
Transparent PPSU (bottle body): PPSU is naturally amber-transparent. Surface quality requirements:
No bubbles or voids—any gas trapped in the melt creates visible imperfections
No flow marks—inconsistent melt-front advancement leaves swirl patterns
No silver streaks—caused by moisture degradation; eliminated by proper pre-drying
No splay—caused by material contamination or improper drying
Surface roughness Ra ≤ 0.2μm on visible surfaces
LSR overmold (soft-touch grip, sealing lip, nipple): LSR is typically translucent or opaque white.
No flash—excess material at the parting line creates sharp edges
No air traps—trapped air causes visible bubbles and weak spots
No scorching—excessive mold temperature burns the LSR, creating brown discoloration
No adhesion failure—the LSR must bond completely to the PPSU substrate without peeling or separation
What we deliver: For painted or printed components (e.g., measurement markings on the bottle), we design compensation for shrinkage and warpage so that printing registration is maintained to ±0.1mm accuracy—eliminating misaligned graphics that must be scrapped.
3.6 Advanced Material Processing Capabilities
Beyond PPSU and LSR, Ansix Tech has extensive processing experience with a wide range of engineering thermoplastics:
Material Typical Applications Key Processing Considerations
PC/ABS Bottle caps, housings Excellent impact resistance; moderate processing temperature
PC Transparent components Drying critical; high melt temperature
PPS + 40% GF High-heat components Abrasive to screw/barrel; requires wear-resistant alloys
PEEK Medical/surgical instruments Ultra-high temperature (380–400°C); exceptional chemical resistance
PTFE / PFA High-purity fluid contact Requires specialized screw design; poor melt flow
PA6 + GF30 Structural components Nylon absorbs moisture; drying essential
PBT Electrical components Good electrical properties; prone to flash
PEI / PPS / LCP High-temperature electronic housings Very high melt temperatures; low melt flow
LSR (liquid silicone) Overmolding, seals, nipples See Section 3.3
Regulatory compliance: For baby bottle applications, all materials we process meet FDA food-contact and EU 10/2011 standards. LSR is inherently BPA-free, phthalate-free, and platinum-cured (no peroxide byproducts). PPSU meets all major global regulations for food-contact plastics.
Performance validation: When required, we provide UL94 V-0 flame rating testing for housings and electrical components, and UV resistance testing (3,000 hours exposure without visible color change) for outdoor-exposed products.
Chapter IV: Full-Process Service — Reducing Your Management Burden
The most valuable service a manufacturing partner can provide is not just making parts—it is reducing the complexity and risk that you must manage. Ansix Tech‘s full-process service model eliminates the need for you to coordinate multiple suppliers or manage internal technical resources for mold design, validation, and maintenance.
4.1 Early Engineering Engagement (DFM Report)
Before we cut any steel, before you commit to full-scale production, we provide a comprehensive Design for Manufacturing (DFM) report based on your 3D CAD file.
What the DFM report includes:
Mold flow analysis results—fill patterns, pressure distribution, weld line locations, air trap locations
Suggested draft angles—for PPSU, we recommend 1–2° of draft on vertical walls to prevent part sticking
Wall thickness optimization—identification of thick-to-thin transitions that will cause sink marks; recommendations to smooth transitions or add ribs for stiffness
Gate location and sizing—recommendations for optimal gate placement to minimize visible witness marks
Ejector pin mark location—we identify where ejector pins will contact the part and propose moving them to hidden surfaces or under the LSR overmold
Undercut analysis—identification of features requiring side-actions or lifters
Material-specific recommendations—suggestions for PPSU grade selection (BASF Ultrason® P 2010 for thin-wall injection molding; P 3010 for higher melt strength in blow molding applications)
Risk assessment—a prioritized list of potential manufacturing issues with recommended mitigations
The customer value: The DFM report eliminates the “design–build–fail–redesign” cycle. Problems that would cost 20,000–50,000 to fix after mold construction are resolved for free, in the digital domain. Customers who incorporate our DFM feedback typically save 15–25% on final tooling costs and reduce time-to-market by 30–40% .
4.2 T-Sample Validation (T0 to T3)
We do not simply hand you a mold and hope it works. Our validation process is systematic and transparent:
T0 (first shot): Raw parts straight from the newly finished mold—no process optimization applied. We measure the parts against your 2D drawing and provide a first-article inspection report with all dimensions recorded.
T1 (first optimization): Process parameters adjusted based on T0 results. We provide a second inspection report showing which dimensions improved and by how much.
T2 (second optimization): Additional refinements, often involving minor mold modifications (venting depth adjustment, gate size modification, cooling channel polishing).
T3 (production-ready): Process parameters finalized. CPK calculated for all critical dimensions. PPAP (Production Part Approval Process) documentation provided. Mold ready for transfer to production.
Fast-change insert capability: For designs requiring comparison of different gate configurations or ejection layouts, we can machine interchangeable mold inserts—allowing you to validate multiple approaches without building multiple complete molds.
4.3 Pilot Production (100–500 Shots)
Before full-scale production begins, we schedule a pilot production run of 100 to 500 shots. This run serves multiple purposes:
Yield verification—we record the yield percentage (good parts ÷ total parts) for the pilot run and identify root causes for any rejects
Statistical validation—we calculate CPK for all critical dimensions based on the pilot run data
Operator training—production operators are trained on the specific process for your part during the pilot run
Cycle time verification—actual cycle times are recorded and compared to estimates
Packaging validation—packing methods are tested to ensure parts arrive at your facility undamaged
Commitment: We do not proceed to full production until the pilot run confirms that the process is stable and the yield meets your requirements.
4.4 Maintenance and Spare Parts
A mold is an investment. Protecting that investment requires proper maintenance.
What we provide:
Spare parts kit—each mold ships with a complete set of spare ejector pins, core pins, and other high-wear components
Maintenance schedule—detailed documentation of recommended maintenance intervals (typically 200,000 cycles)
Maintenance training—we train your maintenance team on proper mold care, or we can provide on-site maintenance services
Lifetime repair support—mold repairs are performed at cost; we do not mark up repair services as a profit center
Turnaround time for repairs: Because we maintain in-house electrode machining, EDM, and welding capabilities, mold repairs rarely require outsourcing. Routine repairs (replacing ejector pins, polishing cavities, adjusting shut-offs) are completed within 24 hours of receiving the mold. Major repairs (cracked cavity, damaged core) typically require 3–5 days.
Chapter V: Differential Commitments — Addressing Industry Pain Points Head-On
Rather than making generic claims about our capabilities, we address the specific frustrations that customers commonly experience with other suppliers.
5.1 Pain Point: “Molds require constant repair, disrupting production schedules”
The root cause: Many mold builders use marginal steel quality, insufficient heat treatment, or inadequate cooling design—leading to premature wear, cracked cavities, and production interruptions.
Our commitment: Every mold we deliver undergoes 2,000-cycle aging testing before shipment. After 2,000 continuous cycles, we inspect the mold for signs of wear and provide a detailed wear report. We guarantee the mold‘s structural integrity for three years (excluding normal wear on consumable components such as ejector pins and gate inserts).
5.2 Pain Point: “Flash is everywhere—we spend hours manually trimming parts”
The root cause: Poor parting line machining accuracy, insufficient clamping force, or mold deflection under injection pressure.
Our commitment: We machine parting line shut-off surfaces to 0.005mm flatness and design molds for self-locking clamp force compensation. Flash is consistently maintained at ≤ 0.03mm across the entire parting line—thin enough to require no manual deflashing. If flash exceeds this specification, we cover the cost of rework and expedited shipping.
5.3 Pain Point: “Dimensions change from batch to batch—we cannot trust the process”
The root cause: Variations in incoming material properties, inconsistent process parameter control, or inadequate mold temperature regulation.
Our commitment: All process parameters are locked in MES. Real-time cavity pressure and temperature sensors provide feedback for automatic process compensation. We provide dimensional data from every batch so you can verify consistency. For a typical injection molding process, CPK ≥ 1.33 corresponds to a defect rate of less than 66 parts per million—statistically, fewer than one defective part per 15,000 produced.
5.4 Pain Point: “Mold repairs take weeks—our line is down”
The root cause: Dependence on external suppliers for electrode machining, EDM, and welding services.
Our commitment: Ansix Tech’s in-house electrode machining center, EDM department, and welding station mean mold repairs rarely leave our facility. For standard repairs (ejector pin replacement, cavity polishing, parting line touch-up), we complete the work and return the mold to production-ready condition within 24 hours of receipt.
5.5 Cost Reduction Summary
Across our customer portfolio, we achieve cost reductions through three primary mechanisms:
Cost Reduction Mechanism Typical Savings Methodology
Multi-cavity tooling 30–60% 8-, 16-, or 32-cavity molds amortize fixed costs across more parts per cycle
Cycle time optimization 20–35% Conformal cooling plus hot-runner/cold-runner optimization reduces cooling time
Material waste reduction 15–25% Cold-runner LSR systems eliminate runner scrap; hot-runner PPSU systems similarly reduce waste
Post-processing elimination 10–20% Flash-free molding eliminates manual deflashing; bubble-free molding eliminates rejects
Total combined impact 40–60% Lower per-part cost without compromising quality
Conclusion
The LSR overmolded PPSU baby bottle represents the convergence of advanced materials, precision engineering, and rigorous quality control. At Ansix Tech, we have spent over 28 years building the infrastructure, expertise, and processes necessary to manufacture this product reliably and cost-effectively.
Our approach is not to simply produce parts—it is to eliminate the uncertainty, risk, and hidden costs that plague injection molding projects. From DFM analysis before the mold is built, to MES-controlled production processes, to lifetime repair support—every element of our service is designed to make your job easier and your product better.
We invite you to experience the Ansix Tech difference. We can take an existing product from your portfolio and perform a comprehensive DFM analysis, demonstrating exactly how we would resolve weld lines, trapped air, sink marks, and other risks before they ever reach production. With four production bases across China and Vietnam, 260 injection molding machines, ISO 13485 certification, and a cleanroom environment compliant with FDA 510K standards, we are ready to scale with your business as you grow.
Contact Information
Ansix Tech
Email: info@ansixtech.com
Visit: www.ansixtech.com
Appendix: Key Industry References
Global baby bottle market: USD 3.9 billion in 2024, projected to reach USD 6.6 billion by 2031 (CAGR 6.86%)
PPSU baby bottles withstand 1,000+ sterilization cycles without discoloration or degradation
LSR cycle times: 10–90 seconds per shot depending on geometry
PPSU processing temperature: 330–390°C melt temperature, 140–180°C mold temperature
LSR injection pressure: 50–150 bar; cure temperature: 150–200°C
Ansix Tech certifications: ISO 9001, IATF 16949, ISO 13485, ISO 14001, BSCI, FDA 510K
Ansix Tech facilities: 4 production bases, 260 injection molding machines, 30–2,800 ton range, 200,000+ m² area, 1,200+ employees
Ansix Tech Co Ltd
If you have any plans related to LSR Liquid Silicone Baby Bottle — The Ultimate Weaning Aid PPSU Bottle with Embedded LSR Overmolding , you can contact us at any time. We will turn your ideas into reality, let you realize your dreams, and obtain large orders from the market. Our contact information is info@ansixtech.com. Or contact our CTO, mail: stephen@ansixtech.com
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