Every HVAC sheet metal fabrication operation has unique requirements, production goals, and facility layouts, there’s simply no one-size-fits-all solution. Mestek Machinery understands this diversity, offering a versatile lineup of corner insertion and seam closing machinery that not only keeps pace with production demands, but also fits seamlessly into any workflow. That's why we offer a diverse lineup of precision-engineered equipment solutions tailored specifically to meet your operational demand. Whether your shop prioritizes speed, precision, flexibility, or quiet operation, our comprehensive selection of corner insertion and seam closing machinery ensures you'll find the perfect machine to maximize productivity and achieve superior results.
Mestek Machinery is committed to offering cutting-edge machinery designed specifically to enhance productivity, accuracy, and efficiency in HVAC duct fabrication. Highlighted below are four exceptional equipment solutions designed to streamline your corner insertion and seam closure operations: the Iowa Precision Cornermatic® Plus, Dual-Head Cornermatic® Classic, Cornermatic® Plus Versa, and Whisper-Loc® Pro XVI. Here's a high-level look at the benefits of each machine and why they might be the right fit for your operation.
Iowa Precision Cornermatic® Plus Corner Insertion Machine
High-Speed, Single-Operator Efficiency
The Cornermatic® Plus is a cornerstone of productivity for rectangular duct fabrication. Designed for fast, automatic corner insertion, it’s ideal for high-volume shops looking to reduce manual labor and increase throughput. With consistent accuracy and no need for pre-crimping or hand hammering, it delivers a clean, sealed corner every time, making it a go-to for operations prioritizing speed and efficiency with minimal floor space.
Why choose it?
- Increases production rates with single-operator efficiency
- Minimizes rework with reliable, repeatable corner insertion
- Reduces labor requirements while improving consistency
The Iowa Precision Cornermatic® Plus is an industry leader in automated corner insertion, significantly reducing labor costs and boosting productivity. Its intuitive design facilitates effortless insertion of TDC® and TDF® corners into duct sections, dramatically improving throughput and quality.
Key Benefits:
- Rapid Corner Insertion: Up to 80 ducts per hour, dramatically reducing manual labor and production bottlenecks.
- User-Friendly Operation: Easy-to-use interface minimizes training requirements and operator fatigue.
- Robust Design: Engineered for heavy-duty use, ensuring reliability and minimal downtime.
Iowa Precision Dual-Head Cornermatic® Classic
Double the Output, Optimized for Parallel Processing
For operations that demand even greater speed, the Dual-Head Cornermatic® Classic offers simultaneous insertion of corners on both ends of the duct, dramatically reducing cycle times. It’s the ideal solution for high-volume, large-scale operations that need to maximize output without sacrificing accuracy.
Why choose it?
- Dual-head insertion cuts processing time in half
- Ideal for shops with high-volume rectangular duct runs
- Maintains alignment and consistency across both ends
The Iowa Precision Dual-Head Cornermatic® Classic optimizes productivity by inserting two corners simultaneously, doubling your output compared to traditional single-head machines. Ideal for high-volume shops, it efficiently handles TDC® and TDF® flange styles, enhancing both consistency and speed.
Key Benefits:
- Dual-Head Efficiency: Inserts two corners at once, effectively doubling productivity and significantly reducing cycle times.
- Versatility: Handles various duct dimensions seamlessly, accommodating your diverse production needs.
- Reliable Performance: Built to withstand rigorous daily use, minimizing maintenance downtime.
Iowa Precision Cornermatic® Plus Versa Corner Insertion Machine
Adaptable for a Wide Range of Duct Sizes and Profiles
The Cornermatic® Plus Versa provides the same dependable performance as the Cornermatic® Plus but with added flexibility. This machine has been designed for shops that fabricate a variety of duct sizes and styles, offering tool-less adjustments to accommodate different profiles. The Cornermatic Plus Versa also adds the capability of sitting on your workshop floor or in-ground, allowing for greater flexibility during production.
Why choose it?
- Accommodates a wider range of duct sizes
- Tool-free adjustments streamline changeovers
- Heavy-duty hydraulic scissor lift raises/lowers the machine in seconds
For those requiring unmatched versatility, the Iowa Precision Cornermatic® Plus Versa stands out. This machine efficiently handles both large and small ductwork and easily accommodates a wide range of corner sizes without time-consuming adjustments, streamlining complex and varied production runs.
Key Benefits:
- Ultimate Versatility: Accommodates various duct sizes and corner types quickly and seamlessly with rapid changeovers between different corner sizes and types dramatically reduces downtime.
- In-Ground Feature: Beneficial for projects involving large or straight duct and heavier gauge, larger fittings, while the above-ground position is ideal for fitting production.
- Operator-Friendly Design: Simplified controls and clear visibility enhance operator efficiency and reduce errors.
Iowa Precision Whisper-Loc® Pro XVI Seam Closing Machine
Quiet, High-Quality Seam Closing
The Whisper-Loc® Pro XVI is designed for high-quality seam closure with minimal noise—a huge benefit for shop environments that value operator comfort and noise reduction. It delivers a tight, clean seam without excessive force, helping to maintain duct integrity while improving shop conditions.
Why choose it?
- Significantly quieter than traditional seam closers
- Produces smooth, uniform seams without damaging ductwork
- Ideal for operations focused on quality and operator safety
Perfecting seam closure is critical in HVAC duct fabrication, and the Iowa Precision Whisper-Loc® Pro XVI delivers superior results quietly and reliably. It securely closes Pittsburgh seams without additional fasteners or adhesives, achieving precise, airtight seams effortlessly.
Key Benefits:
- Quiet Operation: Industry-leading noise reduction technology creates a more comfortable working environment.
- Superior Seam Quality: Produces consistently tight and clean seams, significantly reducing air leakage and improving duct performance.
- High-Speed Performance: Closes seams quickly and consistently, increasing shop throughput and efficiency.
Choosing the Right Corner Insertion or Seam Closing Solution for Your Shop
Each of these machines brings unique advantages to the table. Whether you're prioritizing speed, flexibility, output, or shop floor ergonomics, Mestek Machinery’s lineup of corner insertion and seam closing solutions offers the performance and reliability your operation needs. By selecting the machine that best fits your workflow and fabrication goals, you can maximize productivity, reduce labor, and deliver high-quality ductwork with confidence.
Discover the Future of Corner Insertion & Seam Closing Technology at the MACH Solutions 2025 Machinery Show
Don't miss this unique opportunity to see all four Iowa Precision corner insertion and seam closing machines—Cornermatic® Plus, Dual-Head Cornermatic® Classic, Cornermatic® Plus Versa, and Whisper-Loc® Pro XVI—in action, side-by-side, in one convenient location. Visit our MACH Solutions 2025 Machinery Show post for a complete list of Mestek Machinery’s featured equipment, additional event details, and easy instructions on how to register for this must-attend event.
Why Mestek Machinery?
With these advanced solutions from Iowa Precision, Mestek Machinery continues its legacy of driving productivity and precision in the sheet metal fabrication industry. Whether your operation demands rapid corner insertion, versatile duct handling, or superior seam closure, Mestek Machinery equips you with robust, efficient, and user-friendly equipment solutions, positioning your business for long-term success and operational excellence.