
In recent years, ETPU popcorn sole technology has triggered a revolutionary upgrade in the global footwear manufacturing industry. Favored by major sports brands and consumer markets for its ultra-light weight, high resilience, wear resistance and low temperature resistance, ETPU (Expanded Thermoplastic Polyurethane) material has become a core representative of footwear "black technology", widely used in high-performance running shoes, casual shoes, home slippers and other scenarios. Behind the booming popcorn sole market, intelligent and automated production equipment is the core support for industrial upgrading. As a professional manufacturer of intelligent shoe-making molding equipment, Guoshuo Intelligent Technology Co., Ltd. leads the industry with advanced full-automatic intelligent molding solutions, reshaping the new pattern of modern footwear manufacturing.
Known as the "cloud-like soft and elastic" footwear material, ETPU popcorn sole is formed by physical foaming of ordinary TPU particles. After professional technological treatment, the particle volume expands more than 10 times to form dense and elastic micro-particle structures. With an excellent resilience rate of over 61%, outstanding wear resistance and low-temperature toughness that remains stable even at -20°C, ETPU material perfectly solves the pain points of heavy weight, poor elasticity and easy damage of traditional shoe soles, and has become the mainstream material for high-quality functional footwear in the market.
However, traditional ETPU sole production relies heavily on manual operation, featuring low efficiency, large product error, unstable quality and high labor costs, which restricts the large-scale and standardized development of the industry. To break the industry bottleneck, Guoshuo Intelligent Technology Co., Ltd. focuses on the R&D, innovation, production and customization of shoe-making intelligent equipment, committing to replacing traditional manual processes with intelligent manufacturing and building a full-process automated production system for ETPU popcorn soles.

The company’s core product lineup covers full-series professional shoe-making molding equipment, including Central Vacuum, Vertical Machine, Rapid Secondary Molding Machine, Vertical and Horizontal Type Machine, Side-Shifting Machine, and Fully Automatic Intelligent Shoe Sole Molding Machine. All equipment is independently optimized and upgraded based on industry application scenarios, featuring stable performance, high molding accuracy, strong compatibility and intelligent operation, which can fully meet the diversified production needs of ETPU popcorn soles, EVA soles and various functional shoe soles.
Among them, the flagship Fully Automatic Intelligent Shoe Sole Molding Machine realizes one-stop intelligent production from raw material feeding, precise metering, high-pressure vacuum foaming, constant temperature molding to automatic demolding and edge trimming. The whole process is intelligently controlled by the system, which can accurately control the filling volume of ETPU particles in each mold, ensuring consistent density, fullness, weight and softness of finished soles. The high-pressure vacuum foaming technology enables the particles to expand evenly and fill the mold cavity rapidly, realizing one-time precise molding with clear texture and stable performance. Equipped with automatic mechanical arm discharging and cooling shaping system, the equipment greatly shortens the production cycle and eliminates manual operation errors.
Compared with traditional production modes, Guoshuo’s intelligent shoe sole molding equipment achieves comprehensive breakthroughs in quality, efficiency, cost and environmental protection. In terms of quality standardization, full computer program control realizes zero-error precise production, greatly improving product yield and consistency; in terms of cost reduction and efficiency improvement, full-process automation reduces manual dependence, optimizes production procedures, and helps shoe manufacturers achieve large-scale, low-cost and high-efficiency production; in terms of green production, the equipment adopts environmentally friendly and low-energy consumption technology, with no pollution emissions during operation, matching the environmental protection attributes of ETPU materials and conforming to the sustainable development trend of the modern footwear industry.
With the iterative upgrading of domestic footwear manufacturing technology, Guoshuo Intelligent Technology Co., Ltd. has reached the international advanced level in equipment performance, technological innovation and production stability. Relying on its complete product matrix and strong technical strength, the company’s full-series molding equipment is not only applicable to the mass production of high-end ETPU popcorn sole sports shoes, but also compatible with the customized production of daily casual shoes and home slippers, providing one-stop intelligent manufacturing solutions for footwear enterprises of all sizes.
In the future, Guoshuo Intelligent Technology Co., Ltd. will continue to focus on the innovation and upgrading of shoe-making intelligent equipment, continuously optimize product performance, deepen the integration of intelligent technology and footwear manufacturing, empower the high-quality development of the footwear industry with professional equipment strength, and help more enterprises create high-performance, high-value and environmentally friendly footwear products, leading the new trend of intelligent and green manufacturing in the global footwear industry.