About Us

CHANGSHU SHI SHOUYU MACHINERY CO., LTD. (trading as SOYU Machinery) is a premier equipment manufacturer specialized in solid waste reduction technology. As the developer of the 3E series—a technical line established in 2009—we operate shredder3e.com as our official platform to serve global clients. Established with a focus on advanced R&D, we integrate over 17 years of precision engineering experience with robust manufacturing capabilities. Our technical team leverages specialized expertise in shredder R D and production. By combining high-performance core components with professional custom designs, we deliver tailored solutions for industrial, domestic, and hazardous waste processing. Beyond hardware, we provide complete, integrated process solutions to maximize recycling efficiency for our clients worldwide.

WHY CHOOSE US

CHANGSHU SHI SHOUYU MACHINERY CO., LTD. is ISO 9001 certified and holds over 80 national patents. Our range of crushing and separation equipment—including single-shaft, dual-shaft, and four-shaft shredders—is manufactured in strict compliance with CE standards. Our solutions are widely applied in solid waste recycling, hazardous waste disposal, RDF production, animal carcass processing, medical waste treatment, and electronic scrap recycling, as well as the shredding of plastic, paper, and metal. With a global business network spanning over 80 countries and regions, our high-performance products have earned widespread acclaim from customers worldwide.

PROFESSIONAL CERTIFICATES

ISO 9001&CE Certified • 80+ National Patents for Shredding Technology

WELCOME TO SOYU MACHINERY

With over 17 years of experience in the recycling industry, CHANGSHU SHI SHOUYU MACHINERY CO., LTD. (operating as SOYU) has built a highly skilled R&D team dedicated to technological innovation. We specialize in delivering stable, energy-efficient waste reduction solutions, ranging from plastic shredding and material recycling to complex solid waste crushing. Beyond high-performance equipment, we provide comprehensive end-to-end support—including installation, calibration, and long-term maintenance. As the official operator of the 3E Series platform (shredder3e.com), we are committed to being your reliable partner by providing optimal, tailored solutions for your waste processing needs.

OUR CUSTOMERS

WE PROVIDE RELIABLE INDUSTRY SOLUTIONS

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OUR EXHIBITIONS

OUR HISTORY

About the company's development history

Global & Smart Leadership

Global Expansion: We maintain an extensive global footprint with established regional service centers. Our export business accounts for approximately 70% of our total revenue, reflecting the trust and recognition we have earned from international clients.

Global Expansion & Technical Advancement

We have engineered a range of high-performance shredders featuring our proprietary multi-material adaptive systems. These innovations reinforce the technological superiority of our premium shredding solutions, ensuring reliability and high throughput in complex recycling environments across the globe.

Technical Expertise & High-End Foundation

Through years of dedicated development, we have successfully optimized four-shaft shredder technology, implementing specialized upgrades that effectively solve material jamming issues in demanding environments. Our manufacturing process is ISO 9001 certified, ensuring full-process quality control and reliable performance for every high-end shredding solution we deliver.

Company Establishment

We established our advanced production base in Suzhou, Jiangsu. As a pioneer in the manufacturing of four-shaft shredders in China, we have built a professional brand dedicated to high-end solid waste shredding solutions, serving global industries with reliability and innovation.

2025

2018

2012

2009

SOYU Machinery: 17+ years of experience in solid waste reduction.
Brand of CHANGSHU SHI SHOUYU MACHINERY CO., LTD.

CONTACT US: Building 3, Wangyuhe Bridge, Liantang, Shanghu Town, Changshu City, Suzhou City, Jiangsu Province, China; sy@shredder-3e.com; +86-512-52408453

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