Iowa Precision Cornermatic® machines automate corner insertion and seam closing, delivering unmatched efficiency, precision, safety, and long-term savings for HVAC duct manufacturers.
Article content provided by Mestek Machinery.

The Iowa Precision Cornermatic® family sets the benchmark in HVAC duct manufacturing with unmatched efficiency, precision, and reliability. Engineered to automate the corner insertion and seam-closing process, these machines reduce manual labor, speed up production, and enhance consistency and safety. By eliminating repetitive steps, shops can boost productivity and accelerate project turnaround without sacrificing quality.
Each Cornermatic® model serves a unique shop need. The Whisper-Loc PRO-XVI delivers quiet, powerful seam-closing that enhances operator comfort. Cornermatic Plus and Plus Versa offer flexibility for both standard and variable duct sizes, while the Cornermatic Combo combines multiple capabilities in one machine. The Dual Head Cornermatic Classic maximizes output by inserting corners on both duct ends simultaneously, ideal for high-volume shops. Supporting TDC, TDF, and slip and drive ducts, the line provides a complete solution for diverse fabrication requirements.
Durability and precision define Cornermatic machines. Built to handle demanding shop environments, they offer long-term performance with minimal maintenance, lowering downtime and repair costs. Automated corner insertion and crimping ensure airtight, consistent ducts that reduce rework, field issues, and overall costs, giving shops a competitive edge.
Ease of use and safety are built in. Intuitive controls shorten training time, and integrated safeguards protect operators. By combining speed, precision, and protection, Cornermatic empowers sheet metal shops to streamline operations, scale output, and increase profitability. Investing in Cornermatic isn’t just buying equipment, its securing lasting efficiency, quality, and growth.
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Mestek Machinery is an industry-leading provider of the most complete, innovative metal forming solutions, specializing in machinery manufacturing for HVAC ductwork.
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