32-tooth 90g large-capacity shampoo bottle tube PET preform
FEATURES
The “Hard Power” Foundation – Building Customer Confidence Through Equipment Excellence
How our advanced manufacturing infrastructure translates into better quality, shorter lead times, and lower risk for your business.
1.1 Mold Processing Equipment – Precision That Protects Your Product Quality
At Ansix Tech, we believe that exceptional molds begin with exceptional machining capabilities. Our mold manufacturing workshop is equipped with state-of-the-art machinery that directly impacts the quality of your PET preforms:
Five-Axis High-Speed Machining Centers
Our five-axis high-speed machining centers achieve positioning accuracy of 0.002mm. What this means for you: The parting lines on your preform molds are smooth and virtually invisible, eliminating flash issues that would otherwise require costly manual trimming operations. For a 90g preform, even 0.05mm of flash on 32 cavities adds up to significant waste—our precision eliminates this problem at the source.
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Mold Description
Product Materials:
PET PETG
Mold Material:
S136ESR
Number of Cavities:
16
Glue Feeding Method:
Hot runner
Cooling Method:
Water cooling
Molding Cycle
22.5s
- The mold manufacturing process and product material selection
Slow-Wire EDM (Electrical Discharge Machining)
We utilize slow-wire EDM capable of producing features as small as 0.03mm with exceptional surface finish. What this means for you: Fine micro-pores, narrow slots, and intricate cooling channels can be machined without causing thin-wall deformation. The 32-tooth geometry demands precise gate and vent features—our EDM capability ensures these are produced accurately and consistently.
Coordinate Measuring Machines (CMM) and Optical Inspection Systems
Every mold cavity is verified against design specifications before leaving our facility. What this means for you: Each mold delivers full dimensional reporting with critical dimension CPK ≥ 1.33. When you receive a mold from Ansix Tech, you can be confident that all 32 cavities will produce identical preforms, eliminating the “good cavity/bad cavity” problems that plague inferior molds.
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Injection Molding Machine Fleet – Stability That Drives Consistency
Our injection molding workshop operates machines ranging from 30 tons to 4000 tons of clamping force, covering the full spectrum of part sizes. For the 32-tooth 90g preform, we deploy machines with optimal shot capacity calculated as:
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Required shot volume ≥ (Preform weight × Number of cavities) ÷ 0.75
What this means for you: We select machines that operate at 75-85% of maximum shot capacity, preventing material degradation from excessive residence time. The typical cycle time target for a 90g 32-cavity preform is 21 seconds, enabling annual production of approximately 75 million pieces.
All-Servo Electric Drive Systems
Our injection molding machines are powered by all-servo electric motors with full closed-loop control. What this means for you: Repetition accuracy is stabilized at ±0.1%, meaning every single preform across every production batch is dimensionally identical. Unlike hydraulic machines where oil temperature fluctuations cause cycle-to-cycle variations, our servo-electric systems deliver consistent shot weight and fill characteristics. For packaging customers, this consistency means downstream blow-molding operations run smoothly without preform dimensional surprises.
Energy Efficiency That Reduces Your Cost
All-electric servo-driven machines consume significantly less energy than hydraulic equivalents. What this means for you: Lower energy consumption per preform translates directly into reduced production costs. We pass these savings to our customers through competitive pricing. A 150-ton all-electric machine typically consumes 5-6 kWh per hour—over 60% less than hydraulic alternatives.
1.3 Inspection and Quality Equipment – Data-Driven Assurance
Every preform produced at Ansix Tech undergoes rigorous inspection:
In-line vision inspection systems positioned directly after the injection molding process detect common quality deviations in real time
Statistical Process Control (SPC) monitors critical parameters including weight, dimensions, and visual defects
Acetaldehyde (AA) content testing ensures levels ≤ 1 ppm for neutral taste profiles in shampoo applications
Intrinsic Viscosity (IV) tracking maintains drift within ±0.02 dL/g to ensure consistent stretch-blow behavior
What this means for you: Every preform that leaves our facility has been verified for quality. You receive no surprises, no off-spec material, and no production line stoppages due to inconsistent preforms.
Part Two: Mold Manufacturing Excellence – Delivering Measurable Value Through Technical Precision
Every mold we produce is engineered with specific customer outcomes in mind. Here is how our technical capabilities solve your problems.
2.1 Mold Life Expectancy – How We Maximize Your Return on Investment
Steel Grade Hardness (HRC) Application Expected Life (Cycles) Customer Value
P20 (Mold Base) 30-36 Frame/Support Structures N/A (structural) Stable foundation, minimal deflection
S136 (Stainless) 40-50 High-gloss cavities, corrosion resistance 1,000,000+ Mirror finish, no rust, long service life
H13 (Hot-Work) 45-55 Core pins, high-thermal stress areas 1,000,000+ Thermal stability, wear resistance, dimensional stability
NAK80 37-43 High-polish requirements 500,000+ Excellent polishability, good toughness
8407 (H13-improved) 45-52 Extended-life core components 1,000,000+ Enhanced thermal fatigue resistance
The customer value: We do not just tell you “the mold is durable”—we guarantee a minimum of 1 million cycles for standard PET applications and 500,000 cycles for glass-fiber reinforced materials. Every mold comes with a material certification report and heat treatment curves, so you know exactly what you are getting.
What problem this solves: Premature mold failure disrupts your production schedule and forces expensive emergency replacements. Our material selection and heat treatment processes ensure that your production line keeps running.
2.2 Achievable Tolerances – Eliminating Dimensional Uncertainty
Feature Type Achievable Tolerance Industry Standard Your Benefit
General structural dimensions ±0.05mm ±0.10mm Half the variation, double the consistency
Critical mating/screw boss diameters ±0.02mm ±0.05mm Reliable assembly, no rework
Precision sealing surfaces ±0.005mm ±0.015mm Leak-proof performance
Parting line flatness 0.005mm over full mold face 0.020mm No flash, no trimming
The customer value: When we say “we achieve ±0.005mm precision on critical features,” what we are really saying is: “You will never have to scrap a batch because preform neck dimensions are out of spec.” Tighter tolerances mean your downstream blow-molding equipment runs at maximum efficiency without downtime for troubleshooting.
2.3 Hot Runner System Design – Eliminating Waste While Maximizing Quality
For the 32-tooth 90g preform, our standard configuration uses a balanced hot runner system with valve gate technology:
Balanced Hot Runner System
The core challenge in high-cavitation PET preform molds is delivering molten PET uniformly to every cavity. An unbalanced system creates flow variations, leading to preforms with differing weights and crystallinity. What this means for you: Our hot runner system is engineered with precise flow simulation analysis to ensure that all 32 cavities fill simultaneously and uniformly. Every preform has the same weight, the same dimensions, and the same physical properties.
Valve Gate Technology
Valve gates mechanically seal each gate after filling, preventing drooling and ensuring clean gate vestiges. What this means for you: No gate stringers, no manual gate removal operations, and no contamination concerns. Your preforms are ready for immediate downstream processing.
Hot Runner vs. Cold Runner – The Cost Advantage
Hot runner molds eliminate cold-runner scrap, saving raw material and eliminating the need for manual runner removal. What this means for you: For a 32-cavity 90g preform mold, eliminating runner waste saves approximately 7-10% of material cost over the mold’s lifetime. At current PET resin prices, this represents tens of thousands of dollars in savings.
2.4 Cooling System Design – The Key to Cycle Time Reduction
Cooling accounts for the largest portion of the injection molding cycle—often more than double the time required for injection itself. Our cooling design approach directly addresses this bottleneck:
Baffle and Bubbler Technology for Long Cores
The slender core pins in PET preform molds cannot be effectively cooled with simple drilled holes. What this means for you: We incorporate baffles and bubbler systems that force cooling water to travel all the way to the core tip and back, eliminating dead zones. This ensures uniform cooling throughout the preform wall thickness.
Temperature Uniformity Across All 32 Cavities
Our cooling circuitry maintains temperature variation of less than ±2°C across all 32 cavities. What this means for you: All preforms cool at the same rate, producing consistent crystallinity, uniform shrinkage, and minimal warpage. Preforms exit the mold straight, round, and dimensionally stable.
Cooling Performance Impact on Your Business:
Uniform cooling reduces warpage, eliminating preform ovality that causes downstream blowing issues
Consistent cooling across cavities means identical preform properties—no sorting required
Efficient cooling shortens overall cycle time, increasing your daily production capacity by 20-30%
2.5 Gate and Runner Configuration – Optimized for Fill Balance
Through detailed mold flow analysis, we identify and optimize:
Gate location and count to ensure balanced filling across all 32 cavities
Runner layout to minimize pressure drop while maintaining fill balance
Venting design (typically 0.001–0.0015mm vents) to prevent trapped air that would otherwise cause sink marks
What this means for you: No weld lines, no trapped gas, no incomplete fills. The first shot from our mold is ready for production—no weeks of trial-and-error tuning.
2.6 Ejector System Design – Reliable Part Removal for 1 Million+ Cycles
The ejector system must operate smoothly and consistently over millions of cycles. What this means for you: Our design incorporates guided ejector pins, sufficient ejection force capacity, and optimized ejector layout to prevent part deformation upon ejection. We provide spare wear components (ejector pins, core pins) with every mold so you never face unexpected downtime.
2.7 Delivery Lead Time Commitment – Certainty You Can Plan Around
Mold Complexity Standard Lead Time Expedited (10% surcharge) Quality Assurance Steps
Simple molds 10 days 7 days T0 sample before shipment
Medium complexity (including 32-cavity preform mold) 25–45 days 20 days T0, T1, T2 trials; full dimensional report
Complex multi-component molds 45–60 days 35 days Full validation protocol with CPK analysis
What this means for you: You can confidently schedule your production launch. Our lead time commitments are realistic and achievable because we maintain in-house machining capacity for all critical operations—mold modifications and repairs never require outsourcing.
Part Three: Injection Molding Process Control – Eliminating the Quality Anxiety
Every customer worries about shrinkage, flash, dimensional instability, and batch-to-batch color variation. Here is how we eliminate those worries.
3.1 Process Standardization – Every Shot Exactly the Same
All injection molding machines in our facility are networked and integrated with a Manufacturing Execution System (MES). What this means for you: Every process parameter—temperature, pressure, speed, cooling time—is locked in the MES and can only be adjusted by authorized engineers. Every batch undergoes first-article and last-article inspection. You receive complete traceability documentation for every production run.
Real-time monitoring systems track cycle times, energy consumption, and machine performance continuously. What this means for you: If any parameter drifts outside control limits, the system alerts operators immediately. Problems are caught before they produce non-conforming parts.
3.2 Dimensional Stability Control – The Science of Consistent Parts
PET is a semi-crystalline material with high and variable shrinkage rates influenced by wall thickness and mold temperature. Controlling this variability is essential for preform quality.
Our approach: Mold temperature is controlled using zone-divided temperature control systems with core and cavity temperature differences maintained within 2°C. What this means for you: Reduced warpage, consistent shrinkage, and predictable dimensional outcomes across all 32 cavities.
Closed-loop process control: Ultrasonic wall thickness sensors provide real-time feedback, automatically adjusting packing pressure to compensate for material viscosity variations. What this means for you: Even when PET resin batch properties vary, your preform dimensions remain stable. In typical production, key dimensions such as neck diameter and length show fluctuations of only ±0.02mm across batches.
3.3 Appearance Quality – The Visible Difference
Requirement Target Specification Our Capability Customer Benefit
Transparent/translucent No bubbles, no flow lines Vacuum-assisted venting, optimized injection profile Premium product appearance
High-gloss finish Surface roughness Ra ≤ 0.2μm Mirror-polished S136 cavities Excellent brand presentation
Color consistency Delta E ≤ 0.5 across batch Precision dosing, machine-to-machine color matching No visible color variation
What this means for you: Your shampoo bottles will look consistently excellent on retail shelves. Color-matched preforms reduce your downstream sorting and rejection costs.
3.4 Material Selection and Processing – The Foundation of Quality
PET Resin Specifications for the 32-tooth 90g Preform:
Parameter Specification Why It Matters
Intrinsic Viscosity (IV) 0.72–0.78 dL/g (standard) / 0.80–0.84 dL/g (hot-fill) Higher IV provides greater mechanical strength and pressure resistance; lower IV flows more easily
Drying conditions 150–170°C for 3–4 hours, moisture < 50 ppm Incomplete drying causes IV degradation and splay marks
Melt temperature 270–295°C Higher temperatures improve flow but accelerate IV drop and AA generation
Cooling time 16–20 seconds (optimized for 90g preform) Accounts for 60% of total cycle time; optimized cooling is key to efficiency
Recycled material content ≤ 25% with thorough re-drying Higher recycled content degrades IV and causes discoloration
Intrinsic Viscosity (IV) Management
For carbonated beverage applications, IV range 0.72–0.76 dL/g is standard; hot-fill applications require IV range 0.80–0.84 dL/g. What this means for you: We help you select the optimal PET grade for your specific application, balancing material cost against performance requirements.
Acetaldehyde (AA) Control
AA is generated during the injection molding process when PET remains molten. High AA levels impart an off-taste to bottled products. What this means for you: Our process controls keep AA levels at ≤ 1 ppm, ensuring neutral taste profiles even for sensitive cosmetic and personal care products. Low AA generation requires precise control of melt temperature and residence time.
3.5 Special Material Capabilities – Versatility for Your Product Line
Beyond standard PET, Ansix Tech has extensive experience processing engineering-grade resins:
Material Applications Key Property
PC/ABS Durability requirements Impact resistance, heat deflection
PC Clarity applications Transparency, toughness
PPS + 40% GF High-temperature resistance Chemical resistance, dimensional stability
PA6 + GF30 Mechanical strength Good fatigue resistance
LSR (Liquid Silicone Rubber) Seals, flexible components Biocompatibility, temperature range
What this means for you: When you want to extend your product line with different material formulations, we have the expertise to handle the transition seamlessly.
Part Four: Full-Process Service – Reducing Your Management Overhead
Many factories focus only on mold delivery. We focus on your entire production lifecycle.
4.1 Early DFM (Design for Manufacturability) Engagement – Solving Problems Before They Exist
We provide a comprehensive DFM report before mold manufacturing begins. What this means for you: You know exactly what you are getting before we cut any steel.
What our DFM report includes:
Draft angle recommendations – preventing ejection issues
Wall thickness optimization – eliminating sink marks and warpage
Gate location optimization – using mold flow analysis to predict weld line and trapped gas positions
Parting line placement – ensuring smooth cosmetic appearance
Ejector pin mark location – agreeing on acceptable positions for non-cosmetic areas
Material shrinkage prediction – ensuring final dimensions match your requirements
The customer value: Our DFM process has saved customers weeks of mold rework and thousands of dollars in tooling modifications. By identifying manufacturability issues before mold manufacturing begins, we eliminate the “surprises” that derail project timelines.
4.2 Trial Molding and Sample Delivery – Transparent Progress, Reduced Risk
We provide T0, T1, T2, and T3 trial samples, each accompanied by a complete improvement report.
Trial Stage Focus Output
T0 – First shots Basic functionality, fill completeness Unoptimized parts for gross defect check
T1 – Parameter optimization Process window development Optimized parts with initial quality data
T2 – Fine-tuning Addressing remaining defects Production-ready parts
T3 – Validation CPK verification, 100% cavity validation Full validation documentation
Quick-change insert capability: We can manufacture interchangeable inserts to test different gate configurations, venting designs, or cooling layouts without building an entirely new mold. What this means for you: Faster design iterations, lower development costs, and faster time to market.
4.3 Small-Batch Validation – Proving Quality Before Full Production
Before committing to full-scale production, we offer pilot runs of 100 to 500 shots. What this means for you: You receive yield rate data and CPK analysis before we ramp up to mass production. If any issues remain, they are caught when correction is still low-cost. This approach has helped customers avoid costly production-line stoppages caused by unexpected dimensional variations.
4.4 Maintenance and Spare Parts – Protecting Your Production Uptime
Every mold delivered from Ansix Tech includes:
Spare wear components: Ejector pins, core pins, and other wear-prone components are supplied with the mold. What this means for you: When a pin eventually wears, you replace it immediately from your stock—no waiting for international shipments.
Scheduled maintenance support: We recommend maintenance at 200,000-cycle intervals and provide detailed maintenance documentation. What this means for you: Preventive maintenance extends mold life and prevents unexpected breakdowns.
Lifetime repair service: Repairs are charged at cost. What this means for you: Your mold investment is protected for its entire service life. We do not hold you hostage with expensive proprietary repair services.
Part Five: Differentiated Value Proposition – Direct Answers to Common Customer Frustrations
Instead of claiming we are “better,” here is how we specifically address the problems you have likely experienced with other suppliers.
5.1 Customer Complaint: “Our mold requires constant repair and disrupts production.”
Our professional response: Every mold undergoes a 2,000-cycle aging test before shipment. We provide a wear report documenting any measurable changes. Additionally, we offer a three-year structural warranty for the mold (excluding normal wear of consumable components).
What this solves: You receive a mold that has already proven its reliability. The 2,000-cycle test simulates weeks of production, catching any assembly or material issues before the mold reaches your factory.
5.2 Customer Complaint: “Excessive flash increases our post-processing costs.”
Our professional response: We machine parting surfaces to 0.005mm accuracy and incorporate self-locking clamping force compensation. Flash is controlled within 0.03mm per batch, eliminating manual de-flashing operations.
What this solves: If you currently spend 0.02perpreformonmanualflashremoval,eliminatingthatoperationsaves1,500 per 75,000 preforms. Over millions of preforms, the savings are substantial.
5.3 Customer Complaint: “Dimensional consistency varies between batches.”
Our professional response: Our injection molding machines are equipped with ultrasonic wall thickness sensors that provide real-time feedback and automatically compensate packing pressure. In-mold temperature and pressure sensors enable true closed-loop process control.
What this solves: When your packaging line automatically handles preforms, dimensional variation causes jams and stoppages. Our consistency ensures your downstream equipment runs at rated speed, not reduced speed.
5.4 Customer Complaint: “Mold repair lead times are too long.”
Our professional response: Ansix Tech maintains an in-house electrode machining center and EDM workshop. Mold modifications and repairs are completed without leaving our facility. Standard repairs including welding and insert replacement are completed within 24 hours.
What this solves: When a mold issue does occur (and occasional issues are inevitable in high-volume production), the solution is days away, not weeks. Your production line resumes full operation quickly.
Cost Control Strategy: How Ansix Tech Reduces Your Total Cost
Dear Customer, to us, a mold is not just a piece of steel—it is your revenue generator. We design molds with production in mind: melt flow characteristics, venting pathways, and thermal balance are all optimized so that when the mold reaches your production line, it requires no debugging, produces minimal flash, and delivers long service life.
7.1 Material Cost Reduction
Strategy Implementation Customer Savings
Hot runner system Eliminates cold runner scrap (7-10% material savings) Tens of thousands of dollars annually
Recycled material expertise Process optimization for up to 25% regrind usage 15-20% reduction in raw material cost
Optimized preform design Wall thickness uniformity reduces average weight without sacrificing strength 3-5% weight reduction = direct material savings
7.2 Process Efficiency Optimization
Strategy Implementation Customer Savings
Cycle time reduction Optimized cooling system reduces cycle time from 25s to 21s 16% more parts per hour = lower unit cost
Energy-efficient machines All-servo electric drives consume 60% less energy 40-50% reduction in energy cost per part
Automated part handling Robotic take-out systems reduce labor requirements Lower direct labor cost per preform
7.3 Quality-Driven Cost Reduction
Strategy Implementation Customer Savings
Scrap reduction Real-time process monitoring reduces scrap from 3% to 0.5% 2.5% more saleable parts = higher effective output
Reduced post-processing Minimal flash (0.03mm) eliminates manual trimming Elimination of $0.01–0.02 per part labor
Extended mold life Premium steel + proper heat treatment = 1,000,000+ cycles Lower amortized tooling cost per part
7.4 Logistics and Supply Chain Optimization
Strategy Implementation Customer Savings
Local-to-you manufacturing Strategic production locations Reduced freight costs and faster response
Bulk packaging optimization Custom palletization for maximum container utilization Lower freight cost per preform
Consignment inventory Stock held at our facility for just-in-time delivery Reduced working capital tied to inventory
Quality Assurance: The Complete Verification Process
Every project at Ansix Tech follows our established quality management system, certified to ISO9001, IATF16949, and ISO13485 standards.
Incoming Quality Control
Raw material verification: PET resin lot testing for IV, moisture content, and color
Component inspection: All mold components inspected before assembly
Certification documentation: Material certificates and heat treatment records provided
In-Process Quality Control
SPC monitoring: Continuous monitoring of injection parameters
Vision inspection: In-line systems detect defects in real time
Cavity traceability: Each of 32 cavities can be tracked individually
Final Quality Control
Dimensional verification: CMM inspection of all critical dimensions
Functional testing: Blow-molding tests to verify preform performance
Documentation package: Complete quality records including CPK analysis
Industry Experience and Proven Reliability
With over 28 years in the precision molding industry, Ansix Tech has delivered solutions for:
PET preform molds from 6g to 720g, neck sizes from 12mm to 150mm
High-cavitation molds up to 96 cavities and beyond
Class I precision molds for medical and pharmaceutical applications
Custom engineered solutions across packaging, consumer goods, automotive, and healthcare sectors
What this means for you: You are partnering with a company that has encountered—and solved—virtually every challenge the industry can present. Our experience is your risk reduction.
Conclusion: A Partnership, Not Just a Transaction
At Ansix Tech, we view every project as a long-term partnership. Our goal is not simply to deliver a mold or produce preforms—it is to ensure that your production line runs reliably, your costs remain competitive, and your product quality meets the highest standards.
What we ask of you: Bring us your requirements, your quality targets, and your timeline. We will bring our engineering expertise, our manufacturing precision, and our commitment to your success.
What you can expect from us:
Molds that deliver consistent quality across millions of cycles
Production processes that maximize efficiency and minimize waste
Transparent communication and on-time delivery
Responsive support for any issue, at any stage
Next Step: We invite you to schedule a DFM review session. Bring an existing product design—we will walk you through our complete analysis process, showing you exactly how we identify and eliminate potential issues including weld lines, trapped gas, shrinkage risks, and dimensional instability. You will see firsthand how our technical capabilities translate into measurable value for your business.
At Ansix Tech, we do not just make molds. We make production possible, predictable, and profitable.
Ansix Tech Co Ltd
If you have any plans related to 32-tooth 90g large-capacity shampoo bottle tube PET preform , 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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