Highly automated, energy-efficient plastic thermoforming and auxiliary systems engineered for global high-volume manufacturing lines.
Wenzhou Yicai Machinery Technology Co., LTD. (Formerly Ruian Seven Star Machinery)
The machinery industry is a highly technical, constantly evolving manufacturing sector. To survive and excel requires continuous engineering design breakthroughs, process optimization, and state-of-the-art automation integration. Modern thermoforming demands processing raw metal alloys and configuring precision PLC controllers, servo drives, and heavy heating banks to create machinery capable of forming polymers with micron-level accuracy. At Wenzhou Yicai Machinery Technology Co., LTD., we develop comprehensive turnkey machinery lines that minimize raw material waste, cut down on cycle times, and meet strict ecological and carbon footprint standards worldwide.
Founded in 2010 as Ruian Seven Star Machinery and reorganized in 2022 to meet global demands, our production plant spans a modern 3,000 square meter footprint. Backed by an experienced R&D team and manufacturing equipment, we design, manufacture, and market advanced multi-station thermoforming machines, plastic sheet extruders, container offset/screen printing systems, and fully integrated cup stacking and packaging lines. By putting engineering quality and customer requirements first, we have earned a stellar reputation across diverse global export markets.
"Sustainable progress in polymer thermoforming requires blending high mechanical stiffness with automated thermal management. We build systems that yield structural consistency cycle after cycle."
Metrics highlighting our production capacity, market reach, and long-standing focus on manufacturing quality.
Addressing the shifting paradigm in modern plastic packaging: from basic vacuum forming to intelligent multi-station thermoforming.
Standard thermoforming has progressed to multi-station forming, punching, cutting, and stacking systems. Our machinery supports positive and negative pressure forming, ensuring crisp product definition, uniform wall thickness, and precise perimeter trimming in a single cycle.
With global sustainability mandates on single-use plastics, thermoforming lines must run alternative resins without jamming. Our systems process PP, PS, PET, PVC, and biodegradable materials like PLA, adapting dynamically to different heat absorption curves.
Precise temperature management prevents sheet sagging and thermal degradation. Using independent ceramic infrared heating arrays managed by advanced PLC systems, we maintain optimal heat zones to match each polymer's exact softening point.
How we address the operational needs, safety profiles, and cost expectations of large international buyers.
Our component supply chain features globally recognized brands for electronics, hydraulics, and pneumatics. This integration lowers operating risks and keeps production lines running reliably over long shifts.
Every packaging application requires distinct geometries. We customize our machines' frame layout, heating zones, PLC parameters, and color schemes to integrate into your existing factory setup.
Maximizing uptime is a key objective. Our sales and engineering teams offer pre-sales line layout consulting, remote diagnostics, and on-site support to keep your operations running smoothly.
A step-by-step breakdown of how polymer raw materials are extruded, heated, formed, and finished into retail-ready packaging.
Raw plastic resin is melted and extruded into flat sheets with uniform gauge profiles using high-performance single or multi-layer sheet extruders.
The plastic sheet travels through a multi-zone heating oven, controlled by independent PID loop sensors to reach its exact softening temperature.
Under positive and negative pneumatic pressure, the heated sheet is forced into precision water-cooled molds to shape the containers.
Excess plastic border material is punched out using high-tolerance cutting dies, maintaining clean edges with minimal scrap.
Finished containers are automatically oriented, counted, and stacked by high-speed mechanical arms, ready for immediate packaging.
We provide full-scale equipment combinations to support all stages of thermoformed packaging production.
We manufacture single-layer, multi-layer co-extruded, and diagonal extruders to produce high-grade plastic sheet stock from materials like PP, PS, PE, and PET.
Designed for curved container side-walls, our 6-color offset and servo screen printers deliver sharp, high-speed graphics on plastic cups and buckets.
Multi-row packing machinery organizes thermoformed cups and trays directly from the forming press, reducing labor costs and manual handling.
Our engineering department builds durable molds designed for high thermal transfer, ensuring reliable product releases and minimal trimming flash.
Inline edge material crushers granulate scrap instantly and feed it back into the extrusion line, optimizing raw material use.
Our team develops tailored systems for specific industrial challenges, adapting machine profiles to handle unique barrier sheets or complex geometries.
Our equipment operates across multiple packaging sectors, producing structurally rigid, dimensional stable retail containers.
Detailed engineering perspectives addressing common questions from procurement teams and production managers.
Using positive and negative pressure together (pressure forming plus vacuum assistance) delivers much greater detail compared to vacuum forming alone. Air pressure up to 6 bar pushes the heated polymer sheet tightly against the mold cavity. This ensures sharp details, uniform wall distribution, and consistent dimensions—ideal for lids, clamshells, and structured tray packaging.
Polylactic Acid (PLA) has a narrow thermoforming window and requires precise heat control. Our machinery features PLC-controlled heater banks that regulate temperature across multiple zones. This system manages the heating curve to prevent sheet sagging while maintaining fast cycle times.
Our machines feature semi-automatic mold installation designs with mechanical guide aids. This configuration allows operators to align and lock molds securely, reducing production downtime when changing between different product shapes.
We use highly insulated heater boxes fitted with fast-response ceramic elements. By combining these with variable-frequency motor drives and energy-recovery hydraulic circuits, our lines consume up to 20% less power compared to legacy designs.
Yes. We design and install automated conveyor pathways that move formed cups directly to offset or screen printers, reducing manual handling and keeping the production line clean.
Explore our industrial-grade tooling, auxiliary machinery, and specialized sheet line hardware.
Get in touch with our engineering team today. We provide full facility layouts, production capacity estimates, and customized quotes for global clients.
Yicai Machinery
