Industrial heavy-duty shredder for high-volume document processing used in large manufacturing plants and corporate headquarters offices. High-performance model capable of continuous operation and processing hundreds to thousands of documents daily. Securely shreds critical manufacturing documents including technical drawings, quality control records, confidential technical materials, and contracts to prevent information leakage. Features wide feed opening accommodating A3-size documents and bound files directly. High-output motor handles thick bound materials and multiple sheet feeding. Clearly distinguished from small office units, optimized for serious document disposal operations in factory management departments and corporate general affairs divisions with industrial-grade specifications.