PDS IG, LLC has launched a fully automated muntin fabrication system designed to process window component bars without the tooling costs and changeover delays of conventional die-based machinery. The system targets insulating glass (IG) fabricators seeking to handle custom muntin geometries at higher throughput while reducing capital exposure to tooling wear and replacement.
Background
Muntin bars - the internal dividers in insulating glass units that simulate divided-lite window aesthetics - have historically been produced using punch-and-die setups requiring dedicated tooling for each bar profile. As manufacturers and consumers increasingly demand more customized muntin bar assemblies, extended downtime from manual tooling changes has grown into a significant production constraint. The global windows and doors market was estimated at USD 203.6 billion in 2025 and is projected to reach USD 355.1 billion by 2035, at a compound annual growth rate of 5.8%, according to Global Market Insights. Against that backdrop, specialized automated cutting and high-precision CNC equipment is increasingly needed to support the volume of rapid custom fabrication these facilities must handle.
PDS IG Equipment was formed in 2011 and has since focused on building high-speed, highly automated, and cost-effective solutions for the insulating glass and window fabrication industries. The company's ownership group carries over 125 years of combined industry experience.
System Details
The PDS IG Muntin Machining Center is a three-axis CNC system that cuts and punches muntin bars. According to company information reported by Door & Window Market and DWM magazine, the system eliminates the need to change expensive dies, which can wear out on other machines. That design choice removes a recurring capital cost and a primary source of unplanned downtime on high-mix fabrication lines.
The machine includes an automated muntin feed for bars up to 152 inches in length, handling both rectangular and contour profiles, as well as two-tone material capabilities. According to Window + Door magazine, the system offers a complete solution for processing both contour and flat bars, including two-tone materials, while removing the financial burden of traditional punches and dies. The line also incorporates an explosion-proof vacuum system, according to company information.
The three-axis CNC architecture executes cutting and punching operations in a programmable sequence, enabling batch-to-batch profile changes through software rather than physical tooling swaps. This positions the system within the broader category of die-free CNC fenestration equipment, where program-driven versatility replaces mechanical retooling.
Outlook
Industry analysts and fenestration automation suppliers have noted that the biggest automation opportunities in IG production include IGU assembly and sealing, frame fabrication, material handling, and quality checks using vision systems, according to Quanex's automation leadership cited in Window + Door's 2026 Industry Pulse. PDS IG's muntin system addresses the frame fabrication and component-prep segment - one where manual or semi-automatic workflows have persisted due to the high profile-variation demands of custom window orders. Companies across the fenestration sector are consistently investing in automated glazing and fabrication equipment to reduce dependency on manual labor, gain better precision, and increase throughput, according to Global Market Insights. The PDS IG announcement signals continued momentum in that direction for the niche but technically complex muntin segment.
