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Plastic preform handling is a critical link in preform manufacturing, connecting PET injection molding, blow molding, and bottle filling lines, and efficient conveyance can make or break overall productivity. Dynamic Conveyor’s modular conveyor systems give manufacturers a flexible way to transport and bulk fill preforms and bottles while adapting quickly to new products and layouts.

From Injection Molding Machine To Gaylords

In a typical PET preform production line, preforms exit the injection molding machine near floor level and must be elevated to fill Gaylords, boxes, or totes. A DynaCon incline conveyor lifts preforms from the press discharge up to the required height, feeding a perpendicular conveyor that distributes parts to one or more Gaylords for storage or downstream processing.

Dynamic Conveyor’s preform handling conveyors can support one to four Gaylords using a combination of left/right travel and diverting arms to direct parts to multiple containers. This allows plastics processors to maximize floor space while maintaining continuous operation and reducing manual handling of heavy boxes or bins.

Automated Box, Bin, And Bulk Filling

A Dynacon Vertical bucket conveyor with hopper for filling bins and boxesDynamic Conveyor’s filling conveyor systems are designed for bulk material handling and automated bin filling, using machine cycle count, precise photo sensor part counting, or level detection to monitor fill levels. A Z style infeed conveyor combined with flat divert conveyors and controlled chutes allows Gaylords and bins to be filled by count or by target level with minimal operator intervention.

The system tracks throughput and triggers “near full,” “full,” and “overfill” states on the HMI, activating warning lights and buzzers to alert operators. For two bin or multi bin operation, the diverting conveyor automatically shifts to the next bin when the current bin reaches its target, supporting lightsout or lowtouch plastics production.

Feeding PET Blow Molding And Plastic Bottle Filling Lines

plastic parts in hopper section of bulk parts filling conveyorOnce preforms are stored in Gaylords, they are transferred to the blow molding area, where a dumper and incline conveyor feed preforms to a singulation device such as a bowl feeder. Dynamic Conveyor’s modular conveyors can be used to elevate and meter preforms into these feeders or replace other standard conveyors that are supplied by dumper or feeder packages that are fixed, one-off designs with limited flexibility, no opportunity for reconfiguration and little ability to adapt to new molds or layouts. 

The same modular conveyor technology can be applied after PET bottle blow molding and bottle filling, moving finished bottles, closures, or scrap to box filling systems, accumulation areas, or regrind stations. By using reconfigurable conveyors throughout the injection molding process, blow molding, and filling operations, manufacturers can maintain consistent part flow and minimize downtime caused by bottlenecks or manual transfer.

Benefits Of Modular Conveyors For Plastics Preforms

Dynamic Conveyor’s modular plastic conveyor systems give injection molders, blow molders, and beverage fillers the flexibility to redesign their preform and bottle handling without buying new steel conveyors. Conveyor length, width, elevation, inclines, declines, and diverting sections can be changed or expanded using standard modules to match new molds, new packaging sizes, or new bin configurations.

This modularity reduces total cost of ownership by allowing plants to repurpose existing conveyors when adding new presses, changing bottle sizes, or rerouting filling and packaging lines. With recipe driven controls, counting, and automated box and bin filling, Dynamic Conveyor helps plastics manufacturers increase throughput, improve accuracy, and enhance safety, all while future proofing their preform handling and blow molding operations.

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Manager, Applications & Product Development Engineering at Dynamic Conveyor Corporation
Matt Zehr is the Manager of Applications & Product Development Engineering at Dynamic Conveyor Corporation, where he has dedicated over 20 years of his career. Matt began his journey on the production floor, gaining hands-on experience and a deep understanding of the company's products and operations. His exceptional skills and commitment to excellence advanced him into the Engineering department, where today he plays a pivotal role in developing innovative solutions, improving product designs and leading the applications engineering team.
Matt Zehr