Top 10 Technology Trends: Chinese blow molding and blown film technologies breakthroughs
As an important molding method for film and plastic bottle processing, multi-layer or multi-cavity blow molding plays a significant role in enhancing the barrier and mechanical properties of plastic products, reducing material waste, and achieving multi-functional integration.
In the technologies submitted for the blow molding and blown film technology category of the “The Top Ten Technology Trends in Plastics and Rubber in 2025” campaign initiated by Adsale Plastics Network, innovative solutions from VICTOR MACHINERY, JCTIMES，Costar, and Pengxiang Machinery demonstrated technological advancements across different dimensions to achieve cost reduction and efficiency improvement.
∎ Jiangsu Victor Machinery Co., Ltd
Technology: MSZ D9-Pro Multi-Cavity High-Efficiency Injection Blow Molding Machine and Its Matching Mold
The MSZ D9-Pro three-station injection blow molding machine focuses on intelligence and high efficiency, adopting a 14-cavity mold to produce 100ml milk bottles with a daily output of up to 123,051 pieces. Its specific energy consumption is only 0.34 kWh/kg, far surpassing the national Grade-1 energy efficiency standard (0.4 kWh/kg). Compared to the previous-generation conventional model, which could only accommodate a 9-cavity mold, the new machine nearly doubles production capacity while reducing unit energy consumption by 18%, helping enterprises achieve cost reduction and efficiency improvement.
The machine is equipped with single-cylinder synchronous mold-opening and closing technology, enabling simultaneous injection and blow molding actions. Coupled with an intelligent control system, it precisely manages cycle time and motion accuracy, reducing impact and energy consumption. Customized pressure center technology provides greater flexibility for multi-cavity mold design, while electric rotation and electric pre-plasticizing technologies further shorten the production cycle, meeting large-scale manufacturing demands.
The matching one-step injection blow mold allows injection, blowing, and demolding to occur simultaneously, eliminating station waiting time for high-speed efficiency. The bottle neck is formed in a single injection step, ensuring a full, aesthetically pleasing, and burr-free finish. This enhances user experience while maintaining sealing performance, with no sprue waste, making it energy-efficient and eco-friendly.
The MSZ D9-Pro and its matching injection blow mold align with the plastics and rubber industries' trends of intelligence, low-carbon, and high-efficiency technologies, setting a new benchmark for plastic packaging development and helping packaging companies stand out in global competition.
∎ JCTIMES Group
Technology: Nine-Layer Co-Extrusion Flat Stack Blown Film Die
As a pioneer in multi-layer co-extrusion technology, JCTIMES' engineering team leveraged extensive industry expertise to launch the nine-layer co-extrusion flat stack blown film die.
Combining optimized flow channel design, intelligent control, and precision machining, this die achieves breakthroughs in film quality, production efficiency, and energy-saving sustainability. The nine-layer flat stack flow channel design ensures uniform material distribution for each layer, effectively preventing bubbles, defects, and thickness variations, meeting the demands of high-end packaging and high-performance films. The intelligent control system enhances production stability, ensures consistent quality, and reduces reliance on operator skill.
With its flexible structural configuration, the nine-layer co-extrusion flat stack blown film die enables multi-dimensional optimization in barrier properties, strength, and appearance, catering to diverse application needs. It enhances film material performance while reducing waste, effectively lowering production costs and boosting market competitiveness.
∎ Guangdong Costar Machinery Technology Co.,Ltd
Technology: Five-Layer Co-Extrusion Intelligent Blown Film Production Line
Compared to three-layer co-extrusion, the five-layer co-extrusion process for PE-based films offers significant advantages: superior mechanical properties with improved tensile strength, impact resistance, tear resistance, and transparency; flexible layer ratio adjustment to reduce costs; stronger material adaptability and processing flexibility; and 50% higher output at the same energy consumption level as three-layer systems.
Five-layer co-extrusion equipment outperforms three-layer systems with better mechanical properties, wider layer ratio adjustment range, lower costs, elimination of water ripple defects, broader material options, reduced energy consumption, and better compatibility with downstream processes like solvent-free lamination and high-speed edge-stable printing.
∎ Zhejiang Pengxiang Machinery Manufacturing Co., Ltd
Technology: Dual-Motor Driven Edge-Tracking Auto-Adjusting Air Ring
The 'Dual-Motor Driven Edge-Tracking Auto-Adjusting Air Ring' (Patent No.: ZL 2024 1 1087285.7) is a key blown film cooling device that enables precise circumferential thickness control through intelligent automation technology. Featuring dual-motor independent drive design with real-time sensor monitoring and smart algorithms, it automatically adjusts air flow distribution to ensure uniform cooling and precise thickness control, enhancing both product quality and production efficiency.
The dual motors respectively control air flow output and circumferential positioning, achieving film’s accurate tracking and edge thickness adjustment. Replacing over 100 motors in traditional systems with just two dual-function motors, it reduces failure points and production costs while matching the control precision of international top-tier brands.
