Web Tension Control Industry Leaders More than just products, Montalvo gives you knowledge based solutions so your machines are running at maximum efficiency, reducing waste, and increasing your productivity & profitability. Montalvo has built its reputation on having industry leading web tension control knowledge to identify and create the elements you need to truly improve your process. Every product Montalvo manufactures is built for quality and performance and is engineered to meet the demands of today’s industry. Quality. Expertise. Trust. - Since 1947.