Multi-Layer Injection Molding Technology

An injection molding process involving multiple layers of different materials—though the same material may also be used—to produce thick-walled products;
For thick-walled transparent optical products, the maximum number of layers currently used is six.
Two layers: achieved by rotating 180 degrees; three layers: achieved by rotating 120 degrees; four layers: achieved by rotating 90 degrees; five layers: achieved by rotating 72 degrees; six layers: achieved by rotating 60 degrees.

Shorter Cycle Times and Higher Product Yield

Reduce cycle times by 25%–50% (depending on structure and material).
Increase product yield by 20%–40%.

Dimensional Accuracy and Stability (Eliminates Sink Marks and Warpage)

Significantly reduced internal stress (no uneven holding pressure), with a marked decrease in stress concentration.
Improved light transmission.

Increased Molding Efficiency and Reduced Costs

Shorter holding time and faster cooling, resulting in cycle time reductions of 25%–50%.
Lower holding pressure requirements, with mold cavity pressure reduced by 10%–20%, leading to lower production costs and effectively increasing output.

Multi-Layer Injection Molding Technology

Application Case

Repeat Order Special Successfully Delivers Turnkey Plant Solution

As the largest mold manufacturing and product processing base in Hebei Province, the customer specializes in R&D and design of molds for four major sectors: high-end automotive interior and exterior parts, home appliances, daily necessities, and toys. It is a tier-1 supplier to Midea and Great Wall Motors, operating an integrated molding and plastics factory covering mold manufacturing, injection molding, spraying, and component assembly.

Customer Success Story Empowers the Nail Art Industry with Multi-color Nail Tip Technology Upgrade

Based in Laoling, Shandong Province, this plastic product manufacturer has carved out a strong foothold in the specialized segment of beauty plastic products, with a core focus on nail tip production. By partnering with TUP to deploy a professional injection molding production system, the company has driven process iteration and upgrading through technological collaboration, achieving three key breakthroughs simultaneously—energy conservation, cost reduction, and efficiency improvement—and thus enhancing its core competitiveness in the market.

Customer Story | Cost Reduction & Efficiency Improvement: Customer Endorsement for TUP 's All-Electric Injection Molding Machines

Focus on Application Demands of Thin-Wall PackagingThe Fierce Competition for Every Millimeter in Speed and Precision@TUP Build a Definitive Answerfor Efficient, Energy-Saving and Stable Production.

Customer Story | A Simple ''Great'' – The Sincere Recognition for TUP Injection Molding Machines

Recently, after successfully concluding the Qingdao Rubber & Plastic Exhibition, the team from TUP’s Marketing Department was privileged to visit the cleanroom of a valued customer in Qingdao – and found themselves "immersed" in the customer’s repeated praise of "great" for TUP’s equipment.

The Path to Intelligent Manufacturing Success: Yili and TUP

Yili Group entered the cleaning industry in 1985, primarily engaged in the R&D, production, and marketing of diversified cleaning products such as high-pressure washers, vacuum cleaners, sprayers, and steam cleaners. The group owns several brands including "Yili," "Aizhuren," and "YILIGARDEN." Its manufacturing bases are located in Jiashan, Zhejiang; Nanyang, Henan, China; and Haiphong, Vietnam. Among these, Yili Electromechanical operates a 13,500 m² production base in Jiashan, housing over 140 injection molding machines in its injection molding workshop.