STI Group scales Czech folding carton production with new Mastermatrix 106 CSB

Strategic expansion in Eastern Europe

As the packaging industry navigates the demands of July 2026, the pressure on fast-moving consumer goods (FMCG) supply chains continues to dictate converter investments. STI Group has taken a definitive step to address this by installing a new Mastermatrix 106 CSB die-cutter at its Rumburk facility in the Czech Republic. The acquisition from Heidelberg reinforces the plant's position as a critical node for medium-run folding cartons and complex display finishing in the European market.

The Rumburk site, operating since 1996 and spanning 15,000 square meters, has historically specialized in 3b format production. By integrating the Mastermatrix 106 CSB, STI Group effectively eliminates post-press bottlenecks, aligning its die-cutting capacity with the high output of its existing offset printing presses. This move is a direct materialization of the company's aggressive capital expenditure program executed throughout 2024 and 2025, which earmarked over €50 million for technological upgrades, including a specific €8.5 million allocation for die-cutting operations.

Technical capabilities driving the investment

The selection of the Mastermatrix 106 CSB is rooted in its high-speed performance and automation features. Capable of processing up to 9,000 sheets per hour, the machine is engineered to handle both standard everyday packaging and elaborate carton designs. For a facility like Rumburk, which manages a diverse mix of FMCG, food, and cosmetic packaging, versatility is just as critical as raw speed.

One of the primary technical drivers for this installation is the QuickSet Device. This system automates format adjustments across individual machine stations, drastically reducing makeready times during tool changes. In an era where run lengths are shrinking and job changeovers are more frequent, minimizing machine downtime is essential for maintaining margin integrity.

• Optical Registration: The MasterSet system utilizes optical detection to align sheets precisely, ensuring tight registration even at maximum speeds.
• Workflow Integration: The machine connects directly to the Prinect workflow, allowing for automated job data transfer and bidirectional communication between the MIS and the shop floor.
• Future-proofing: The platform is designed to accommodate upcoming retrofit options, protecting the capital investment against rapid technological obsolescence.

The Heidelberg and MK Masterwork synergy

The Mastermatrix 106 CSB installed in Rumburk bears the Heidelberg house design, a physical representation of the deep integration between Heidelberger Druckmaschinen AG and China's MK Masterwork. Following the celebration of their ten-year strategic partnership in late 2025, the alliance has proven highly effective in deploying over 1,500 finishing systems globally. For STI Group, purchasing through Heidelberg ensures access to a robust European service network and seamless software compatibility with their existing Prinect infrastructure.

Furthermore, the Rumburk plant operates under strict quality and environmental standards, holding EN ISO 9001:2015, ISO 14001:2015, and BRCGS Global Standard Packaging Materials certifications. The precision of the new die-cutter reduces waste during the setup phase, supporting the facility's FSC and PEFC chain-of-custody commitments by maximizing the yield of certified paperboard.

STI Group’s decision to deploy the Mastermatrix 106 CSB in Rumburk is a textbook example of how targeted automation in strategic regional hubs can effectively absorb the growing pressure for shorter lead times in FMCG packaging. As die-cutting speeds hit the 9,000 sheets-per-hour mark, will the next major bottleneck for converters shift entirely to robotic material handling and intralogistics? Follow The Paper for daily news, market signals and key updates from the global paper, corrugated and packaging industry. — Sigue toda la actualidad del sector en www.thepaper.ai