56mm Neck 5-Gallon Bottle Preform, Large Barrel with Hydraulic Cylinder and Threaded Cylinder, 18.9L 20L

FEATURES

• Hardware Foundation – Building Client Confidence Through Equipment Excellence

  At Ansix Tech, we believe superior results begin with superior equipment. Our 28+ years of manufacturing experience has taught us that hardware capability directly translates into product quality, cost efficiency, and delivery reliability.

   

  Mold Processing Equipment: Precision at Every Step

  5-Axis High-Speed Machining Centers: Our facility is equipped with advanced 5-axis high-speed CNC machining centers capable of achieving 0.002mm precision on complex curved surfaces. What does this mean for you? The parting lines on your preforms will be smooth and burr-free, eliminating secondary finishing operations that add cost and delay. For hydraulic cylinder components with intricate geometries, our 5-axis capability ensures seamless contouring without multiple setups, reducing cumulative tolerance errors.

  
  

• Mold Description
  Product Materials:	PET PETG
  Mold Material:	S136ESR
  Number of Cavities:	12
  Glue Feeding Method:	Hot runner
  Cooling Method:	Water cooling
  Molding Cycle	32.5s

  
  
  

• 
• The mold manufacturing process and product material selection
  

  Wire EDM (Slow Wire Cut): We utilize slow-moving wire EDM technology capable of machining micro-slots as narrow as 0.03mm and tight-radius features that conventional machining cannot access. This precision is critical for large barrel components where thin-wall sections are prone to deformation during ejection. By avoiding thin-wall deflection through precision machining, we protect your part geometry from the very first shot.

   

  CNC EDM with Electrode Manufacturing: Our in-house electrode machining center ensures that mold components are manufactured without outsourcing delays. Complex cavity details, sharp internal corners, and deep ribs are produced with consistent electrode quality, guaranteeing repeatability across all cavities.

   

  Injection Molding Machine Fleet: Scale Meets Stability

  Our injection molding machine portfolio spans 30 tons to 4,000 tons, covering product dimensions from micro-precision parts to large-format 5-gallon preforms and industrial barrels. The key differentiator? 100% servo-electric drives on our core fleet.

• Servo-electric machines deliver repetitive positioning accuracy of ±0.1%, meaning every injection cycle replicates the previous one with near-perfect fidelity. For high-volume production runs measured in millions of units, this consistency eliminates batch-to-batch variation—your production line receives preforms that behave identically every time. Additionally, servo-electric drives consume up to 70% less energy compared to hydraulic counterparts, contributing to your sustainability targets while reducing per-part energy cost.

   

  Inspection & Metrology Equipment: Data-Driven Quality Assurance

  Coordinate Measuring Machines (CMM): Our CMM equipment performs full-dimension inspections on every mold before release. Each mold is accompanied by a complete dimension report comparing all critical-to-quality (CTQ) features against CAD nominal values, with Cpk ≥ 1.33 maintained on key dimensions. This statistical proof of capability means you receive not just a mold, but documented confidence.

   

  Optical Imaging & Vision Systems: High-resolution optical measurement systems provide non-contact inspection for delicate features, thread profiles, and surface finishes—essential for ensuring 56mm neck threads achieve proper cap sealing on your filling lines.

   

  Section II: Mold Manufacturing Core Competencies – Delivering Measurable Performance

  Your customers care about four questions: How long will it last? How precise is it? How fast can I get it? How much will repairs cost? Here is our definitive answer:

   

  Dimension Technical Statement Customer Value Translation

  Mold Life Mold base in P20; cavity/core inserts in S136, 2344, 2343, 8407, SKD11/61/DC53, M340, 4Cr13/9Cr18, NAK80, or H13, selected based on resin type and projected volume. For glass-filled or reinforced materials: 500,000 shots guaranteed. For standard PET preform applications: 1 million+ shots. Your mold becomes a long-term asset, not a recurring expense.

  Achievable Tolerances Standard structural features: ±0.05mm. Precision threads and mating surfaces: ±0.005mm. Your caps seal reliably. Your hydraulic cylinders engage smoothly. Your assembly lines run without adjustments.

  Mold Type Capabilities Hot runner systems (material waste reduction), stack molds (doubling output per press), two-shot/multi-material molds, high-gloss molds (Ra < 0.05μm for transparent preforms). Lower raw material cost through reduced runner scrap. Higher throughput without additional machine investment. Crystal-clear preforms that showcase your brand quality.

  Gate & Runner Design Comprehensive Moldex3D mold flow analysis to predict weld lines, air traps, fill imbalances, and sink marks. Gate location, count, and geometry optimized before steel is cut. No guesswork. No post-production surprises. Optimized filling means uniform wall thickness and minimal warpage—directly translating into blow molding yield improvements.

  Lead Time Standards Simple molds: 10 days. Medium-complexity molds: 25–45 days. Expedited service available down to 20 days (without compromising validation steps). Faster time-to-market. Your production ramp-up aligns with your product launch calendar.

  Material Selection & Heat Treatment: Every mold is accompanied by full material certification and heat treatment curve documentation. For hydraulic cylinder and large barrel molds where wear resistance is paramount, we recommend vacuum heat-treated S136 or H13 achieving 48–52 HRC, with optional PVD coating for extended service life in abrasive-filled resin applications.

   

  Section III: Injection Molding Process Control – Eliminating Quality Anxiety

  Your customers fear: shrinkage, flash, dimensional inconsistency, and batch-to-batch color variation. Here is how we eliminate every one.

   

  Standardized, Locked, and Monitored Production

  Every Ansix injection molding machine is connected to our MES (Manufacturing Execution System) . Process parameters—melt temperature, injection pressure, holding pressure, injection speed, cooling time, and screw rotation speed—are electronically locked at validated settings. Only authorized process engineers can make adjustments, with full audit trails maintained. Every production batch undergoes first-article and last-article dimensional inspections, with records archived for traceability.

   

  Dimensional Stability & Warpage Control

  For large barrel and 5-gallon preform applications, warpage control is critical. Our approach:

   

  Zone-controlled mold temperature regulation: Individual heater/cooler zones on core and cavity sides maintain temperature differentials within 2°C, eliminating thermally induced warpage.

   

  Conformal cooling channels: For complex geometries, we employ conformal cooling (enabled by additive manufacturing) that follows the part contour, achieving up to 30% shorter cooling times while reducing residual stress.

   

  Real-data validation: In a recent large-barrel project, continuous production across three consecutive weeks demonstrated key hole-to-hole spacing variation ≤ 0.02mm—full traceability available upon request.

   

  For PET preforms specifically, optimized processing parameters can reduce warpage by up to 4.75% and weight by over 2%, delivering direct material cost savings.

   

  Surface Finish & Cosmetics Classification

  Transparent preforms: Bubble-free, flow-line-free, haze < 2% (measured by ASTM D1003).

   

  Electroplated components: No visible gas marks, no flow lines.

   

  High-gloss surfaces: Ra ≤ 0.2μm, suitable for Class A automotive or premium consumer packaging.

   

  Printed or coated parts: We pre-calculate and embed shrinkage compensation into the mold design, achieving print registration within ±0.1mm.

   

  Advanced Material Processing Capabilities

  Our process control systems handle challenging engineering resins proven across production environments: PC/ABS, PC, PPS+40%GF, PEEK, PTFE/PFA, PA6+GF30, PBT, PEI, PPS, LCP, and liquid silicone rubber (LSR). For applications requiring flame retardancy (UL94 V-0) or UV stability (3,000-hour accelerated weathering tested), we maintain validated processing windows that preserve these critical performance properties.

   

  Section IV: Full-Process Service – Reducing Your Management Cost

  We recognize that no customer wants to manage multiple vendors for design, mold making, production, validation, and after-sales support. Ansix consolidates the entire value stream.

   

  Early Engagement: DFM Reports Before Commitment

  Prior to any tooling investment, we provide a comprehensive Design for Manufacturing (DFM) report covering: draft angle recommendations (eliminating ejection sticking), wall thickness optimization (reducing cycle time), gate location trade-offs (balancing fill quality with aesthetic requirements), ejector pin mark location mapping (avoiding functional or cosmetic surfaces), and hydraulic cylinder seal groove feasibility (ensuring zero-leakage assembly). DFM bridges the gap between moldmakers and clients, saving both time and money by identifying manufacturing issues before tool building begins.

   

  Trial Samples: Iterative Validation Without Hidden Costs

  We provide T0 (first shot) through T3 (optimized) trial samples at no additional charge, accompanied by detailed improvement reports at each stage. For design iterations requiring verification, we use quick-change inserts to validate alternative configurations without complete mold rework—saving weeks of development time and tens of thousands in modification costs.

   

  Small-Batch Qualification

  Before committing to full-scale production, we offer 100–500 shot pilot runs with yield rate and Cpk analysis. We will not release your mold to mass production until documented statistical capability is confirmed—eliminating the risk of discovering quality issues after your supply chain is already engaged.

   

  Maintenance & Spare Parts

  Every mold ships with a complete set of spare wear components (ejector pins, core pins, cavity inserts) and a preventive maintenance schedule. At each 200,000-shot interval, we offer factory reconditioning services. Post-warranty repairs are priced at actual cost—no markup, no retainer.

   

  Section V: Customer Challenge Mapping – Honest Responses to Industry Pain Points

  Common Customer Complaint Ansix Technical Response

  "Mold keeps breaking, disrupting my production schedule." We run 2,000-shot accelerated wear tests before mold delivery and provide a documented wear report. Three-year mold structure warranty (excluding normal consumable wear).

  "Excessive flash means expensive manual deflashing." Parting lines machined to 0.005mm fit accuracy with self-locking clamp force compensation. Flash controlled to ≤ 0.03mm—no deflashing required.

  "Part dimensions change between production runs." In-mold cavity pressure sensors provide closed-loop process control. When material viscosity fluctuates, the machine compensates in real time.

  "Mold repairs take weeks and cost a fortune." In-house electrode machining center and EDM department perform most repairs without leaving our facility. Routine weld/pin replacement: 24-hour turnaround.

  Section VI: Ansix Tech Standard PET Preform Weights for 56mm Neck, 5-Gallon (18.9L/20L) Applications

  For the 56mm neck, 5-gallon (18.9L/20L) PET bottle preform segment, Ansix Tech manufactures the following standard weight configurations, each validated for specific application requirements:

   

  Preform Weight (grams) Application Suitability Wall Thickness (approx.) Key Characteristics

  650g Room-temperature still water, office water coolers, light-duty transportation 4.5–4.8mm Lowest material cost; optimal for non-pressurized, short-distance distribution

  680g Standard 5-gallon water bottles, general beverage applications 4.8–5.0mm Industry standard weight; balances cost and durability

  700g Carbonated beverages, extended shelf life, long-distance logistics 5.0–5.2mm Enhanced burst resistance; meets pressure-retention requirements

  730g Heavy-duty industrial containers, high-refill cycles, rigorous handling 5.2–5.5mm Maximum durability for commercial water service and returnable bottle programs

  780g Extreme-duty applications, pressurized carbonated drinks, export shipping 5.5mm+ Highest structural integrity; multiple refill cycles without performance degradation

  All weights can be customized within ±1% tolerance as standard. Color masterbatch, recycled PET (rPET) content (up to 100%), and logo positioning features are available upon request.

   

  Section VII: DFM Process – 56mm Neck 5-Gallon Preform & Hydraulic Cylinder Large Barrel

  Stage 1: RFQ & DFM Analysis (Pre-Tooling)

  Deliverables to client: DFM risk memo covering gate position, parting line, ejection method, draft angles, wall thickness uniformity, tooling structure recommendations, and mold flow simulation summary.

   

  Customer value: We identify potential manufacturing issues before any steel is cut. For 5-gallon preforms, this means confirming that the 56mm neck thread geometry is moldable with zero undercuts, that wall thickness distribution yields uniform stretch ratios during blow molding, and that the gate vestige location minimizes cosmetic impact. Client approval required before proceeding to design release.

   

  Stage 2: Detailed Mold Design (2D/3D)

  Deliverables to client: Complete 3D assembly drawing, 2D layout sign-off, cooling circuit design validation, ejection system specification, runner balance calculation report, and conformal cooling feasibility assessment (for large barrel components where cycle time is critical).

   

  Design focus for 5-gallon preform molds:

   

  Cooling system: Conformal cooling channels following the preform core profile, reducing cooling time by up to 30% while maintaining uniform temperature distribution (±2°C core-to-cavity differential).

   

  Runner system: Hot runner with thermally balanced manifold ensuring uniform melt delivery to each cavity—especially critical in multi-cavity (e.g., 32-cavity or 48-cavity) preform molds.

   

  Ejection system: Strategically placed ejector pins distributed to avoid cosmetic surfaces and thread areas while ensuring even part release without distortion.

   

  Stage 3: Mold Manufacturing & Machining

  Process flow: Steel selection and certification → heat treatment (vacuum furnace) → 5-axis CNC roughing (material removal) → stress-relief annealing → 5-axis CNC finishing (final geometry) → Wire EDM (narrow slots and tight radii) → CNC EDM (deep ribs and complex cavity details) → hand polishing/fitting → assembly → water circuit pressure testing.

   

  Quality controls at each step: Electrode inspection, steel hardness verification (HRC recorded at multiple points), fitment check with gap gauges, and weekly progress reporting to client with hardness documentation.

   

  Stage 4: T0/T1/T2 Trial & Validation

  Deliverables to client: Short-run molded samples (T0/T1/T2), CMM measurement report for all CTQ features, FAI (First Article Inspection) report / ISIR, molding parameter sheet documenting validated process window, and defect analysis report with corrective actions taken.

   

  For preform applications specifically: Dimensional measurements focus on neck finish critical dimensions (thread profile, outer diameter, inner diameter, perpendicularity to preform axis—≤ 0.5mm/m per industry standard), overall length, and wall thickness distribution (measured at multiple stations around circumference). Blow molding trials conducted on representative equipment to validate stretch ratio performance.

   

  Stage 5: Approval & Mass Production Readiness

  Deliverables to client: PPAP/PSW approval documentation, export packing manifest with ISPM 15-certified wooden crates, mold maintenance manual, spare parts list (ejector pins, core pins, cavity inserts, heaters, thermocouples), and vacuum-sealed moisture barrier packaging for ocean or air shipment.

   

  Section VIII: Injection Molding Process Optimization – Efficiency & Cost Control

  The economic model of injection molding rests on three pillars: material cost, processing cost (cycle time × machine rate), and tooling cost amortized over production volume. Ansix optimizes every pillar:

   

  Cycle Time Reduction

  Cooling time typically accounts for the majority of the total cycle. By implementing conformal cooling channel designs and high-efficiency mold temperature control systems, cooling time can be reduced by 56% compared to conventional cooling layouts, with overall cycle time improvements of 15% or more. Every second saved per cycle translates directly into higher annual output and lower per-part machine cost.

   

  Scrap & Flash Reduction

  Flash-free molding (≤ 0.03mm flash) eliminates post-molding deflashing—a labor-intensive process that adds minutes per part and creates quality inconsistency. At volume production scales, scrap reduction alone can generate annual savings exceeding $250,000 from a single job.

   

  Material Efficiency

  For hot runner systems, we reduce sprue and runner waste by approximately 40% while simultaneously shortening the injection molding cycle by roughly 10%. In PET preform production, optimized processing reduces material consumption per part by over 2% without compromising mechanical properties. For high-volume 5-gallon preform customers, this 2% material saving on 700g parts translates into approximately 14g of PET saved per unit—a meaningful reduction over millions of parts annually.

   

  Energy Efficiency

  Our all-servo-electric injection molding machines consume up to 70% less energy than traditional hydraulic counterparts. Combined with process optimization that reduces cycle time, specific energy consumption per part decreases proportionally.

   

  Section IX: Quality Assurance Framework

  Pre-Production Quality Gates:

   

  DFM review: Identifies manufacturability risks before tooling release

   

  Mold flow analysis: Validates filling balance, air trap location, weld line placement, warpage prediction, and sink mark risk

   

  T0 sampling: First-shot parts validated against dimensional requirements

   

  T1 optimization: Process parameters tuned for dimensional stability

   

  T2 verification: Reproducibility confirmed across multiple production runs

   

  In-Process Quality Controls:

   

  MES parameter locking: All molding parameters recorded, locked, and auditable

   

  Inline vision inspection: Automated check of critical dimensions (neck diameter, thread integrity, overall length) at full production speed

   

  Cavity pressure monitoring: Real-time sensor feedback detects part-to-part variation before parts exit the machine

   

  SPC sampling: Statistical sampling per AQL standards with real-time control chart monitoring

   

  Batch traceability: Each production batch marked with molding date, shift, machine number, and material lot code

   

  Post-Process Quality Validation:

   

  CMM first-article inspection: Comprehensive dimensional report for each mold setup

   

  Blow molding test: Sample preforms from each batch blow molded into finished bottles for performance validation

   

  Drop test & pressure test: Representative samples tested per ISO standards

   

  Full dimension report delivered with each shipment upon request

   

  Section X: Summary – The Ansix Tech Value Proposition

  Your Need Our Solution Measurable Outcome

  Shorter time-to-market DFM report within 72 hours of CAD receipt; expedited lead times down to 20 days Faster product launch; earlier revenue generation

  Lower total cost of ownership Optimized cycle times (15%+ improvement), material efficiency (2%+ reduction per part), reduced scrap, and energy savings (70% less vs. hydraulic) Lower per-part cost; improved margins

  Consistent quality across millions of parts Servo-electric machines with ±0.1% repeatability; MES-locked parameters; Cpk ≥ 1.33 on CTQ features Zero production-line surprises; no customer returns

  Reduced supply chain management burden Single-source accountability from DFM through production to spare parts; full documentation package included Fewer vendors to manage; lower administrative cost

  Lower technical risk Mold flow analysis before steel cut; 2,000-shot validation before mold shipment; pilot run qualification before mass production No after-the-fact redesign costs; no production delays

  Sustainability alignment Optimized material use; rPET process capability (up to 100%); energy-efficient servo-electric molding Lower carbon footprint; regulatory compliance

  Section XI: Why Choose Ansix Tech for Your 56mm Neck 5-Gallon Preform & Hydraulic Cylinder Large Barrel Project

  With over 28 years of continuous manufacturing experience, Ansix Tech has accumulated a depth of practical knowledge that cannot be replicated by newer entrants. We have successfully delivered preform molds and injection molding solutions to customers worldwide, spanning beverage packaging, industrial container, and specialty material handling applications.

   

  Our expertise is not theoretical—it is proven in every mold we manufacture and every part we produce. From the selection of the optimal mold steel (S136 for transparency-critical preform applications, H13 for high-wear hydraulic cylinder components, NAK80 for high-gloss cosmetic surfaces) to the fine-tuning of cooling channel layouts that balance thermal efficiency with structural integrity, every decision is informed by decades of empirical learning.

   

  What we deliver is not merely a mold or a molded component. We deliver production confidence: the assurance that your 56mm neck 5-gallon preforms will blow mold without failure, that your large barrel components will assemble without interference, that your hydraulic cylinders will seal without leakage, and that every part will meet specifications on the first shot of every production run.

   

  For us, a mold is not a piece of steel—it is a revenue-generating asset for your business. We design for manufacturability, we build for durability, and we validate for reliability. When you receive an Ansix mold, you receive a production-ready solution that requires no on-site debugging, produces minimal flash, and delivers decades of service life.

   

  Contact & Next Steps

  To discuss your specific 56mm neck 5-gallon preform or hydraulic cylinder large barrel project requirements, please submit your 3D CAD files (STEP, IGES, or native format) along with your production volume forecasts and material specifications. Ansix Tech will respond with:

   

  A preliminary DFM analysis within 24–48 hours, identifying any potential manufacturing constraints

   

  A detailed tooling quotation with itemized cost breakdown and lead time estimate

   

  A sample molding demonstration for feasibility verification (available upon request)

   

  We invite you to experience the Ansix difference—where engineering expertise meets manufacturing excellence, where technical terminology translates into tangible customer value, and where your production success is the only metric that matters.

   

   

   

   

   

  Ansix Tech Co Ltd

  If you have any plans related to 56mm Neck 5-Gallon Bottle Preform, Large Barrel with Hydraulic Cylinder and Threaded Cylinder, 18.9L20L , 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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