{"id":3763,"date":"2026-03-02T21:26:57","date_gmt":"2026-03-03T05:26:57","guid":{"rendered":"https:\/\/haifengmachine.com\/?post_type=case&p=3763"},"modified":"2026-03-24T22:23:54","modified_gmt":"2026-03-25T06:23:54","slug":"haifeng-polyurethane-insole-production-line-case-study-empowering-sports-brands-to-achieve-large-scale-mass-production-of-high-end-functional-insoles","status":"publish","type":"case","link":"https:\/\/haifengmachine.com\/de\/case\/haifeng-polyurethane-insole-production-line-case-study-empowering-sports-brands-to-achieve-large-scale-mass-production-of-high-end-functional-insoles\/","title":{"rendered":"Haifeng Polyurethane Insole Production Line Case Study: Empowering Sports Brands to Achieve Large-Scale Mass Production of High-End Functional Insoles"},"content":{"rendered":"
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Haifeng Polyurethane Insole Production Line Upgrade Case: Empowering Sports Brands to Achieve Large-Scale Mass Production of High-End Functional Insoles<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Customer Background<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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As a leading domestic sports brand with over a decade of experience in the sports footwear industry, the client’s products cover multiple scenarios including casual sports and professional athletics, boasting a large consumer base and mature sales channels. Its core business is the R&D and production of various sports insoles, which were previously manufactured mainly through manual and semi-automated methods. In recent years, with the growing attention to foot health and sports protection among consumers, the brand planned to launch a series of high-end functional insoles featuring high resilience, strong support, breathability and antibacterial properties. However, the original production mode could not meet the new process and capacity requirements at all, making it an urgent need for a professional polyurethane automated production line upgrade solution to break through the development bottleneck.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Project Overview<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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A leading domestic sports brand has long been plagued by three core pain points: inability to mass-produce high-end functional insoles, insufficient production capacity, and high production costs. Combining the characteristics of polyurethane insole molding processes, Haifeng Automation has tailored a full-chain upgrade solution integrating customized equipment + intelligent control + full-process closed loop. By introducing an intelligent dual-density molding production line and optimizing the logic of raw material pouring and formula regulation, we completed the installation and commissioning of core equipment in just 3 days. This helped the enterprise transform from “manual and semi-automated production” to “data-driven precision intelligent manufacturing”, successfully overcoming the challenges of large-scale production of high-end functional insoles, filling the gap in the brand’s high-end product line, enabling it to achieve the annual sales target of one million pairs, and clearing the core obstacles for overseas market expansion.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Core Customer Pain Points<\/h2>\t\t\t\t<\/div>\n\t\t
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01<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Single product category, no capacity for high-end models<\/h5>\t\t\t\t<\/div>\n\t\t\t\t
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More than 90% of the enterprise’s insoles were ordinary single-density models, and it lacked the capability to produce high-end insoles with complex functions such as multi-layer composites and orthopedic support. The low product added value put the enterprise at an absolute disadvantage in the competition with high-end competitors.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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02<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Severe raw material waste and poor product adaptability<\/h5>\t\t\t\t<\/div>\n\t\t\t\t
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The raw material waste rate in the production process was as high as 8%, causing a lot of unnecessary cost losses; insoles produced by manual and semi-automated methods had large dimensional deviations, leading to poor fit with the brand’s own shoe models and seriously affecting the user’s wearing experience.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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03<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Low production efficiency, capacity restricting development<\/h5>\t\t\t\t<\/div>\n\t\t\t\t
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The maximum daily output of a single production line was only 3,000 pairs with low processing efficiency, far from meeting the annual sales target of one million pairs. Insufficient production capacity greatly slowed down the brand’s market expansion pace, and the enterprise was also unable to respond quickly to multi-specification orders.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Poor quality stability and lack of compliance assurance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Manual operation led to poor consistency in density, hardness and resilience of insoles in the same batch, with the product qualification rate only 85%; the original production line had no standardized quality control system and did not adopt environmental protection production processes, failing to meet the compliance requirements of overseas markets such as the EU, which hindered the brand’s overseas expansion.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Haifeng's Solutions<\/h2>\t\t\t\t<\/div>\n\t\t
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01<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Core equipment upgrade<\/h5>\t\t\t\t<\/div>\n\t\t\t\t
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We equipped the client with a dual-density molding system and a 6-cavity multi-cavity production line, paired with an intelligent temperature control and precision pouring unit, which can produce various types of insoles including single-density, dual-density and composite-substrate ones, perfectly meeting the production requirements of high-end functional products; an automated raw material pretreatment tank with preheating and dehydration functions was also provided to realize the integrated operation of raw material processing, pouring and molding.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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02<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Implementation of intelligent control<\/h5>\t\t\t\t<\/div>\n\t\t\t\t
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The production line is equipped with a PLC microcomputer control system and a robotic arm part-taking device, with more than 500 formulas pre-stored in the system. The product parameters for different densities (30-50D) and hardness levels can be switched with one click, eliminating the need for tedious manual adjustment; a multi-dimensional online quality inspection station is added to monitor the core indicators such as insole size and density in real time to ensure the consistency of product quality.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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03<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Process optimization and upgrading<\/h5>\t\t\t\t<\/div>\n\t\t\t\t
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The polyurethane raw material mixing and foaming molding processes are optimized, and the uniformity of raw material mixing is improved through high-speed dispersion and stirring to enhance the resilience and support performance of insoles; high-precision metering pumps and CNC trimming machines are configured to realize quantitative pouring of raw materials and precise trimming of products, reducing raw material waste from the source; water-based release agents and energy-saving heating systems are adopted, which meet the requirements of EU REACH regulations and reduce environmental pollution.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Full-cycle supporting services<\/h5>\t\t\t\t<\/div>\n\t\t\t\t
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Professional engineers are arranged to be stationed in the factory for 3 days, adopting a modular installation method, and taking full responsibility for equipment installation, commissioning, old equipment dismantling and process parameter calibration; special practical training is provided for the enterprise’s workers, covering core skills such as formula calling, parameter adjustment, equipment maintenance and quality inspection operation to ensure quick mastery; a 1-year whole-machine warranty service is provided, a 24-hour technical docking mechanism is established, and rapid response to conventional faults is guaranteed to support the efficient operation of the production line.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Core Achievements of Project Implementation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Product upgrade and mass production, leap in high-end market competitiveness<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Relying on Haifeng’s intelligent molding equipment and precise processes, the enterprise can now stably produce a variety of high-end functional insoles such as dual-density, breathable-layer and arch-support ones. The resilience of the products is nearly twice that of traditional single-density insoles, and the feet are not prone to fatigue even after long hours of wear, fully meeting the needs of high-end sports scenarios. At present, high-end insoles account for 40% of the brand’s total insole sales, with monthly sales exceeding 80,000 pairs since launch, successfully widening the product gap with competitors and greatly improving the brand’s recognition in the high-end sports accessory market.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Several times increase in production capacity, zero delay in order delivery<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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After the full-process automated transformation, the processing efficiency of the production line has been greatly improved. The daily output of a single production line has increased from 3,000 pairs to 12,000 pairs, and the annual capacity of three production lines has reached 1.2 million pairs, exceeding the annual sales target of one million pairs; the model switching time has been shortened from 40 minutes to 8 minutes, enabling rapid response to multi-specification and small-batch order requirements, completely solving the problem of order delivery delay with a 100% on-time delivery rate, and successfully winning a number of long-term cooperation orders.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Significant reduction in comprehensive costs, stable profit margin<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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The application of high-precision metering pumps and multi-cavity molds has reduced the raw material waste rate from 8% to 1.5%, saving more than 600,000 RMB in raw material costs annually; automated equipment has replaced most of the manual labor, and one worker can complete the workload previously requiring three people, greatly reducing labor costs; the intelligent energy-saving system has effectively reduced equipment energy consumption. With multiple optimizations, the unit production cost has been reduced by 21%, allowing the enterprise to maintain a stable profit margin even in the case of fluctuations in raw material prices.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Both quality and compliance up to standard, comprehensive expansion of domestic and overseas markets<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Thanks to the intelligent and precise control of the production line, the dimensional deviation of insoles is stably controlled within 0.3mm, the product qualification rate has increased from 85% to 99%, customer complaints have dropped significantly, and the brand reputation has continued to improve; the production line adopts water-based release agents and energy-saving heating systems, fully complying with the EU REACH environmental protection regulations, completely breaking the compliance barriers of overseas markets, successfully removing the obstacles for the brand’s overseas expansion, and realizing the dual layout of domestic and overseas markets.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Haifeng Polyurethane Insole Production Line Upgrade Case: Empowering Sports Brands to Achieve Large-Scale Mass Production of High-End Functional Insoles Customer Background As a leading domestic sports brand with over a decade of experience in the sports footwear industry, the client’s products cover multiple scenarios including casual sports and professional athletics, boasting a large consumer base […]<\/p>\n","protected":false},"featured_media":3771,"parent":0,"template":"","meta":{"_acf_changed":false},"cases-categorie":[69],"class_list":["post-3763","case","type-case","status-publish","has-post-thumbnail","hentry","cases-categorie-footwear"],"acf":[],"yoast_head":"\nHaifeng Polyurethane Insole Production Line Case Study: Empowering Sports Brands to Achieve Large-Scale Mass Production of High-End Functional Insoles - Zhejiang Haifeng Automation Equipment Co., Ltd.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/haifengmachine.com\/de\/case\/haifeng-polyurethane-insole-production-line-case-study-empowering-sports-brands-to-achieve-large-scale-mass-production-of-high-end-functional-insoles\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Haifeng Polyurethane Insole Production Line Case Study: Empowering Sports Brands to Achieve Large-Scale Mass Production of High-End Functional Insoles - 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