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New thermal gate single-stage hot runner system

New thermal gate single-stage hot runner system

News 26.04.2023

For those looking to modernize their single stage PET bottle production. Mold-Masters® has created the AXIOM TG (Thermal Gate) hot runner system, which is designed to meet the needs of single-stage PET molders. This hot runner system brings the latest processing technology to enhance molded part quality, increase productivity and lower cost per part. AXIOM TG is an economical direct replacement for many existing outdated hot runner systems and is compatible with all leading ISBM machines and molds.

Mold Masters AxiomTG Thermal Gated Single Stage PET Hot Runner System

Features include:
• Incorporation of Mold-Masters proven iFLOW manifold technology
• A new optimized, purpose-built nozzle design
• Industry-standard gate-seal design

Benefits include:
• Enhanced bottle quality and reduced scrap rate
• Homogeneous melt delivery and rapid color change
• Increased uptime and reduced maintenance costs
• Retrofittable to existing molds

Proven iFLOW Manifold Technology
The processing advantages of Mold-Masters iFLOW manifolds have been proven in thousands of applications. iFLOW manifolds are manufactured from two separate pieces of steel with the runner channels carefully milled from each half of the manifold. This allows Mold-Masters to incorporate melt-flow geometries, flow-path options and runner shapes that optimize processing performance beyond the limitations of traditional gun-drilled manifolds.

Homogenous Melt Delivery Provides Bottle-to-Bottle Consistency
The greatest obstacle preventing bottle-to-bottle consistency is non-uniform melt delivery. Most single- stage hot runners rely on outdated technology that cause differences in residence time, shear history and melt temperature, resulting in non-uniform melt delivery. Non-uniform melt delivery through outdated manifolds produce preforms with inconsistent temperature profiles that stretch-blow into bottles with greater wall-thickness variation, such as side-to-side and top-to-bottom variability. The one-stage ISBM process requires the delivery of near perfect melt homogeneity to all cavities.

Mold Masters Axiom TG iFlow Manifold Technology

iFLOW Manifold Technology achieves greater bottle-to-bottle consistency through optimized melt delivery technology:
• Best in-class melt management provides critical processing capabilities for consistent high-quality part production
• Industry-leading mold-fill balance from improved shear management
• Smooth transitions minimize hang-up spots and dead spots, which allows for rapid color-change performance
• Optimized runner diameters address pressure loss, residence time and shear rate
• Enhanced temperature uniformity

New Axiom TG nozzles
The new AXIOM TG nozzle offers an excellent thermal profile to deliver precise and repeatable processing capabilities that enhance part quality. The nozzles incorporate individual nozzle heaters for individual temperature control. The nozzle heaters are also field-replaceable for quick and easy maintenance. The threaded nozzle base provides integrated leak protection. AXIOM’s independent temperature control provides a wider processing window, faster start-up time and superior reliability compared to the outdated heater-less heat-pipe nozzles that are common in the industry.

New Industry Standard Gate Seals
The gate-seal design seals on the face of the cavity and is compatible with industry standard cut-outs. This allows the AXIOM TG to easily retrofit into many existing molds. The new gate seal features an easy-to-replace slip-fit insert liner and threaded gate-seal tip. The advanced thermal gate design reduces crystallinity in the gate and prevents stringing over a wide processing- temperature range.

Axiom TG (Thermal Gate) has been created to compliment Mold-Masters’ existing Axiom VG (Valve Gate) system by offering a new economic option for molders who prefer the simplicity of thermal gates over valve gates and desire a higher level of thermal-gate performance over the limited options available on the market today. Axiom VG has been a proven solution in single-stage applications for more than ten years.

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