The Heavy Duty Spiral Binding Machine (Legal Binder) is a robust and efficient tool designed for binding large volumes of documents with precision and durability. Built for continuous, heavy-duty use, it’s ideal for offices, printing presses, stationery shops, and educational institutions that require professional-quality spiral binding for legal-size papers. Key Features: Strong Metal Body: Heavy-duty steel construction ensures stability and long service life. Legal Size Compatibility: Supports binding for legal-size (14”) papers as well as A4 and smaller formats. Accurate Punching System: Sharp, high-quality steel dies provide clean and consistent punching without paper jams. High Capacity: Capable of punching 10–15 sheets (80 gsm) at a time and binding up to 500 sheets (depending on spiral size). Manual Lever Operation: Smooth and easy-to-use handle for effortless punching and binding. Adjustable Margin & Depth Control: Allows precise alignment for neat, professional results. Non-Slip Base: Ensures stability during operation. Compatible Materials: Suitable for PVC, laminated, and standard paper sheets. Specifications: Type: Manual heavy-duty spiral binding machine Binding Capacity: Up to 500 sheets (depending on spiral size) Punching Capacity: 10–15 sheets (80 gsm) per punch Paper Size: Legal (14"), A4, and custom sizes Material: Metal body with steel punching pins Operation: Manual Margin Adjust: Yes