Belvac a Dover company > Services > DT Series Dome Trimming Systems

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Superior Container Handling

The uniqueness of the Belvac Series of Trimming and Finishing Machinery is best detailed by its modular construction

Blow molders wishing to enter this lucrative and rapidly growing market have been limited to three choices – 1 Step, which is slow, costly and offers little flexibility; injection molding from wide mouth preforms – which is costly and suffers from low cavitation; or the blow trim process using low quality in-line spin trimmers.

Belvac Production Machinery has overcome these limited choices with the introduction of our rotary trimming and finishing series of machines. Containers are fed directly from the blow molding machine upright, into the DT Series dome trimmer, for a clean and repeatable, chip free, and burr free dome decapitation via a customer supplied transfer conveyor. The mechanically driven “D” knife assembly provides a burr free decapitation of the excess dome. We also offer our patented burnishing system ( as shown below) designed to smooth out the top sealing surface (TSS) and the inner neck finish. Applications requiring additional processing of the finished container can be outfitted with modules to provide Leak Detection and Camera based vision systems, as detailed in the modular line drawings below.

Plastic bottle producers are faced with numerous challenges. One of tem should not be how to provide their customers with a consumer friendly finished container, with maximum seal integrity. With the wide array of options available for packaging a variety of products in plastic, including PET, various polyolefin constructions, PVC, PP, and other compositions, the Belvac series of trimming and finishing machines provide you with the solution to this daunting challenge.

Over the years, Belvac Production Machinery has been responsible for numerous advances in can making technology. Belvac has developed innovative designs and processes enabling customers to steadily increase line speeds, improve quality and productivity, while significantly reducing material costs. Now, Belvac is using this same core competency to engineer and manufacture both medium and high-speed precision machinery solutions for the plastic container industry.
Let us put our 40 years of experience designing and building machinery to the highest world-class standards to work for you.

If you are currently using injection blow molding technology, changing to the blow-trim process may save you money and increase your market penetration. If you are in the process of establishing new lines, or would consider a change over, our Excel based Cost Comparison for Wide Mouth Trim Off Process spreadsheet can detail the benefits. Call, fax, or e-mail us today for your copy.

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