About Siken

Suzhou Siken Machinery Co., Ltd. is a professional manufacturing and technology-driven company specializing in plastic recycling, pelletizing, and extrusion equipment. Based in Zhangjiagang, Jiangsu, China, we combine nearly 20 years of industry experience with deep technical expertise across the entire plastics value chain.

We are not a trading company. We are a manufacturer and technical partner — we design, build, and continuously improve our own equipment. Our strength lies in our deep understanding of both upstream and downstream technologies, backed by hands-on experience in manufacturing processes, quality control, and production optimization.

What sets us apart is our engineering-driven approach. From machine design and component selection to assembly and testing, every step is controlled in-house. This allows us to deliver equipment that is reliable, efficient, and tailored to your specific material and production requirements.

We provide comprehensive support throughout your procurement and production journey:

• Technical consultation — customized solutions based on your material and production needs
• Equipment design & manufacturing — built in our own facility under strict quality control
• Factory visits & technical evaluation — on-site inspection and supplier verification
• Production guidance & supervision — ensuring manufacturing meets your quality expectations
• Equipment testing & commissioning — full inspection and performance validation before shipment
• Shipping & logistics coordination — managing the entire export process with transparency

We hold ISO9001, CE, and EU certifications, ensuring that all equipment we supply meets rigorous international quality and safety standards. Our solutions have been exported to 50+ countries.