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30mm 2925 pet preform for lightweight mineral water  juice bottles  105g to 35g  high efficiency precision molding-0

28mm 30mm 38mm preform

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30mm 2925 PET Preform for Lightweight Mineral Water & Juice Bottles – 10.5g to 35g | High-Efficiency Precision Molding

Item Details
Neck Finish 30mm 2925 (PCO 2925 thread), compatible with standard 30mm caps and tamper-evident rings
Material 100% virgin food-grade PET (IV 0.80±0.02 dL/g)
Weight Range 10.5g / 12g / 13.5g / 15g / 16g / 20g / 22g / 26g / 28g / 30g / 35g
Color Clear (standard), custom Pantone colors available (milky white, light blue, green, UV-resistant, etc.)
MOQ 50,000 pcs (mixed weight allowed)
Certifications FDA 21 CFR 177.1630, EU 10/2011, BPA Free, ISO 9001, ISO 22000
  • Overview
  • Recommended Products

Product Introduction

This product is the 30mm 2925 (PCO 2925) standard PET preform, made from 100% virgin food-grade PET material, with weights ranging from 10.5g to 35g. It is suitable for blow molding of mineral water, juice, carbonated drinks, and functional beverages. The preform features uniform wall thickness, high clarity, and low acetaldehyde content, ensuring bottle strength and taste. We support customizations including color, weight, UV protection, hot-fill, and high barrier. Certified with FDA, EU, ISO 9001, and ISO 22000, it is a reliable choice for beverage brands and water bottlers.

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Key Selling Points

Selling Point Description
1. Virgin food-grade material, no odor 100% virgin PET (no recycled material), AA ≤3ppm, ensures pure taste of water/juice without plastic smell.
2. Extremely uniform wall thickness Husky injection system + hot runner molds, axial and radial wall thickness deviation <0.05mm, even stretch during blowing, no thin spots or bottom bursts.
3. High clarity, Haze <1.5% Special cooling process precisely controls crystallinity, finished bottles are as clear as glass, enhancing shelf appeal.
4. Blow success rate 99% Each batch undergoes blow verification, very low reject rate, saving material and labor costs for customers.
5. Mixed weight orders allowed Within MOQ of 50,000 pcs, 2-3 weights can be mixed, reducing inventory pressure and flexibly meeting different bottle needs.
6. Fast sampling + free samples Free samples for standard clear preforms (5-10 pcs), customer pays freight; can be tested on your machine before ordering.
7. Full global certifications FDA, EU 10/2011, BPA Free, ISO 9001, ISO 22000, smooth export customs, compliant with food contact standards.
8. Rich customization options Support color, weight, UV-block, hot-fill, high barrier, logo engraving – one mold serves multiple needs.

Product Detail Display

1. Neck Thread – Precision 30mm 2925 Standard

Photo: 30mm 2925 thread detail, precision mold ensures sealing

  • Compatibility: Fits 30mm caps and tamper-evident rings (standard water caps, sports caps, smart caps).

  • Thread geometry: Tooth height, pitch, and start angle designed to international preform standards, ensuring stable capping torque, no slipping or leakage.

  • Support ring: Diameter 30.0 mm ±0.1 mm, uniform thickness, stable clamping in blow molding machine, prevents preform drop or eccentricity.

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2. Preform Wall Thickness Distribution – Visual Data

Position Wall Thickness (Typical for 15g) Function
Below neck 2.8 – 3.2 mm Enhances support ring rigidity, prevents deformation during blowing
Middle 2.2 – 2.6 mm Main stretching area, uniformity determines bottle wall thickness
Bottom 3.0 – 3.5 mm Thickened design, drop resistant, prevents bottom cracking
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3. Injection Molding Process Details
Photo: Husky injection system – high precision, high efficiency

  • Drying system: PET material is dehumidified and dried at 160°C for 4 hours, moisture content <0.005%, prevents hydrolysis and bubbles.

  • Injection temperature profile: Five-zone temperature control, increasing from feed throat to nozzle, ensures melt flowability and stable IV.

  • Mold cooling: High-pressure multi-channel cooling water circuit, uniform preform ejection temperature, reduces crystallinity haze.

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4. Appearance & Sensory Details

Photo: High clarity preform – Haze <1.5%, crystal clear

  • Color: Standard clear has a slight blue tint (high clarity type); also available as pure clear or custom Pantone colors.

  • Surface finish: Mirror-polished mold cavity, inner and outer walls smooth with no scratches, no flow marks or fish eyes after blowing.

  • Bottom design: Cold well gate design, flat gate residue, does not affect blow molding.

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5. Packaging & Contamination Prevention

Photo: Automatic packaging line – each preform is ion-air cleaned and sealed in PE bag

  • Each preform is cleaned with ionized air to remove static and dust.

  • Inner PE bag + outer woven bag (or carton), sealed against moisture, avoids secondary contamination during transport.

  • Pallet wrapping + desiccant available upon request.

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Detailed Technical Specifications

Parameter Value / Description
Intrinsic Viscosity (IV) 0.80 dL/g (0.82+ optional for CSD)
Acetaldehyde (AA) ≤ 3 ppm (ensures pure taste for water)
Haze < 1.5% (high transparency)
Shrinkage Longitudinal ≤0.5% / Transverse ≤0.3%
Support ring diameter 30.0 mm ±0.1 mm
Preform length range 45 mm – 115 mm (varies by weight)
Hot-fill capability Heat-set supported, max temperature 85°C
Gas barrier (optional) Oxygen scavenger available, extends shelf life
Drop test (after blowing)

Filled with water, 1.2m height onto concrete floor, no break

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Weight ↔ Recommended Bottle Capacity Reference (Blowing Guide)

Preform weight (g) Recommended bottle capacity – water (ml) Recommended bottle capacity – juice/CSD (ml) Typical bottle height (mm)
10.5 200 – 330 200 – 280 110 – 135
12 / 13.5 330 – 400 300 – 350 135 – 155
15 / 16 450 – 550 400 – 500 160 – 180
20 / 22 600 – 750 550 – 700 185 – 210
26 / 28 900 – 1100 800 – 1000 215 – 240
30 / 35 1200 – 1500 1100 – 1400 245 – 275
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Production Line & Manufacturing Capability

Production Equipment Overview

Jinting factory is equipped with 120+ international brand injection molding machines, including:

  • Husky HyPET series: High-speed, all-electric, suitable for large-scale preform production, short cycle time, low energy consumption.

  • KraussMaffei: High-precision hydraulic/electric hybrid machines, suitable for multi-cavity molds (48, 72, 96 cavities).

  • Automatic robots: Work with injection machines to take out, cool, and convey preforms, avoiding human contact contamination.

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Molds & Cavity Count

  • Mold design capability: In-house mold workshop, can independently develop 8 to 144 cavity preform molds.

  • Hot runner system: Mold-Masters / Yudo hot runners, precise temperature control, reduces gate residue.

  • Quick mold change system: Mold change time ≤15 minutes, suitable for small-batch, multi-variety orders.

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Production Process (From Material to Finished Preform)

Step Description
1. Material drying PET chips dried in dehumidifying dryer, dew point -40°C, drying time 4h, moisture <0.005%
2. Injection molding Injection temp 270-290°C, injection pressure 800-1200 bar, hold pressure time 1.5-2.5s
3. Cooling & setting Mold cooling water temp 8-12°C, cooling time 3-6s (depending on preform weight)
4. Automatic take-out Robot takes out preforms and places on cooling conveyor
5. Online inspection CCD vision system inspects preform dimensions, short shots, black spots, bubbles, etc.
6. Dust removal & packaging Ionized air removes static, automatic counting and sealing in PE bags

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Quality Control System

  • Incoming inspection: Test IV, AA, moisture content for each batch of PET material.

  • In-process control: Every 2 hours, sample check preform weight, wall thickness, neck dimensions, clarity.

  • Blow verification: Daily samples blown on blow molder to test bottle verticality, capacity, pressure resistance, drop performance.

  • Traceability system: Each batch of preforms includes production date, machine number, mold number, traceable to raw material batch.

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Capacity & Delivery Capability

Item Data
Daily capacity Approx. 4 million preforms (24h)
Annual capacity Over 1.2 billion preforms
Mold inventory 200+ sets of standard neck molds (28/30/38/45/48/55mm)
Custom mold lead time New mold development 30-35 days
Max single batch size 5 million pieces (same specification)

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Customization Capabilities (OEM/ODM)

Photo: Customizable multiple colors and special effects

  • Color customization: Any Pantone color, including pearlescent, matte, fluorescent effects.

  • Weight customization: From 9g to 45g, precisely adjust gram weight according to bottle design.

  • Eco-friendly formula: Can add 30% post-consumer recycled PET (R-PET), balancing environmental protection and cost.

  • UV protection: Add UV absorber to protect light-sensitive beverages (juice, dairy drinks).

  • High barrier technology: Oxygen/CO2 barrier performance increased by 3 times, extends shelf life.

  • Brand marking: Brand logo/text can be engraved on preform bottom or side wall.

  • Hot-fill dedicated: Heat-set preforms available, withstand up to 85°C.

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Company Overview

Taizhou Huangyan Jinting Plastic Mold Co., Ltd. is a professional PET preform manufacturer based in Huangyan District, Taizhou City, Zhejiang Province — widely recognized as China's "Hometown of Plastics" and a global hub for plastic product manufacturing. With over 25 years of specialized experience in PET preform development and production, we serve water plants, beverage brands, and packaging buyers worldwide.

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Our Business – Integrated Supply Solution

We not only produce preforms, but also provide auxiliary products and closed-loop testing capability, ensuring seamless connection from preform to finished bottle.

Product Category Details
PET Preforms Full range of neck sizes: 28mm (1881 & PCO1810), 30mm 2925, 38mm, 45mm, 48mm, 55mm, etc. Weight range covers lightweight water-grade, CSD-grade, and 5-gallon preforms.
Finished Bottles We blow finished bottles from 200ml to 5-gallon – meaning we can test our preforms' blow performance in-house and truly understand customers' needs for stretch ratio, wall distribution, and molding yield. This internal feedback loop continuously refines our preform design.
Caps & Handles Provide matching PE caps, ABS handles, and PE handles, ensuring perfect compatibility between preform and closure system, reducing multi-supplier coordination costs for customers.

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Company Facts

Item Data
Established Over 25 years in PET preform manufacturing
Location Huangyan, Taizhou, Zhejiang – China's "Hometown of Plastics"
Factory Area 20,000+ square meters
Product Range PET preforms (all neck sizes), finished bottles, PE caps, ABS/PE handles
Certifications ISO 9001, ISO 22000 (Food Safety Management System)
Export Markets Global, serving water plants, beverage brands, and packaging distributors

Why Choose Jinting?

  • 25 years of deep industry focus – Only PET preforms, concentrated experience, mature technology.

  • Closed-loop testing capability – In-house blow verification, ensuring preform blow success rate 99%.

  • Full supporting supply – Preforms + caps + handles, one-stop purchasing, reduces compatibility risks.

  • International certifications – ISO 9001 quality + ISO 22000 food safety, export ready.

  • China's Plastic Capital – Huangyan's location advantage, fast mold development, quick supply chain response.

Packaging & shipping specifications

Shipping: sea freight (FCL/LCL), air freight, international courier (DHL/FedEx/UPS) – factory arrangement or buyer's forwarder

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Frequently Asked Questions (FAQ)

1. Can I mix different weights in one MOQ?
Yes. Within the MOQ of 50,000 pcs, 2-3 weights can be mixed, specific ratio negotiable.

2. Can I get free samples?
Free samples (5-10 pcs) for standard clear preforms, customer pays freight. Custom colors/weights require mold sharing fee, refundable upon formal order.

3. How is delivery time calculated?
Stock clear preforms (50k pcs) 7-12 days; custom colors/weights 20-25 days; new mold 30-35 days (including trial molding).

4. Do you have FDA / EU test reports?
Third-party test reports and declarations of conformity available, complying with global food contact material regulations.

5. Do you support small trial orders?
Yes. New customers can place a trial order of 30,000 pcs (within standard weight range) to help start projects quickly.

6. Can the preforms be used for hot-fill juice?
Yes. We offer dedicated heat-set preforms that withstand 85°C, suitable for hot-fill juice and tea.

7. Will preforms get damp during transport?
Each batch is packed in PE moisture-proof bags + outer woven bags, and desiccant can be added if needed, ensuring they are dry and ready to use upon arrival.

8. Can you provide 3D drawings or 2D engineering drawings?
Yes. After order or sample request, CAD/STEP format drawings can be provided to facilitate customer's blow mold design.


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30mm 2925 pet preform for lightweight mineral water  juice bottles  105g to 35g  high efficiency precision molding-1

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