1. Finished Preform Product Features
- Structure: Long straight cylindrical body, rounded bottom, standard threaded neck for screw cap assembly
- Material: Virgin bottle-grade PET, milky white opaque or fully transparent customizable
- Function: Intermediate blank for blow molding plastic bottles for drinking water, cosmetic lotion, disinfectant, detergent liquid packaging
- Surface finish: High gloss smooth surface without flow lines, bubbles or crystallization haze
- Standard neck thread design ensures leak-proof matching with standard plastic caps after blow molding
2. Core Mould Technical Advantages
✅ Food-Grade Mirror Polished Stainless Steel Cavity
- Cavity & core inserts: S136H / STAVAX stainless steel, mirror polished to Ra ≤0.02μm
- Anti-rust nitriding treatment, fully compliant with FDA, NSF food contact safety standards
- Eliminates PET crystallization, white fog and optical defects for consistent glossy preform appearance
✅ Independent Spiral Conformal Cooling System
- Full surrounding spiral water cooling channels for each long cavity and core pin
- Fast heat exchange shortens injection cycle time by 25–35%, controls uniform wall thickness on long cylindrical body
- Separated cooling inlet/outlet circuit for every single cavity to avoid temperature difference between cavities
✅ Balanced Hot Runner Multi-Cavity Layout
- Customizable cavity quantity: 8/16/24/32 cavities available for high hourly output
- Symmetrical hot runner manifold design, equal melt flow distance to each cavity, preform weight tolerance ≤±0.02g
- No cold runner waste, reduce raw material cost for mass packaging production
✅ Full Sleeve Balanced Ejection Structure
- Long integrated sleeve ejector matched with long core pins, synchronous uniform ejection
- Effectively prevent neck thread scratch, body deformation and sticking during demoulding of long slender preforms
✅ High-Rigidity Heavy-Duty Mould Base
- Mould base: 718H pre-hardened steel, thickened frame to resist high PET injection pressure
- Service life: 800,000–1,200,000 continuous shots for 24-hour mass production
- All standard components follow HASCO / LKM international specifications
3. Material & Application Scope
A. Compatible Raw Material: Virgin bottle-grade PET, anti-UV modified PET, opaque white masterbatch PET
B. Finished Product Application
- Tall beverage plastic bottles, mineral water & functional drink packaging
- Cosmetic spray bottles, lotion and skincare liquid containers
- Household chemical bottles: disinfectant, detergent, cleaning agent bottles
- Industrial small liquid reagent plastic packaging bottles
4. One-Stop Mould Manufacturing Service
DFM professional PET analysis: optimize cooling layout to avoid long body warpage & crystallization
Full UG 3D mould design + 2D engineering drawing, BOM list output
CNC, wire EDM, sinker EDM precision machining + mirror cavity polishing
Mould assembly, fitting, on-machine trial & preform weight/thickness inspection
Blow molding matching test support, mass injection technical guidance
Lifetime spare parts supply & overseas remote maintenance support
