A bakery processor producing glazed products needed to solve a common production challenge: allowing enough time for glaze to properly set without slowing the line or expanding the facility footprint. With products moving continuously through a long glazing stage, the process required a controlled dwell period before downstream handling—but traditional linear conveyors would have required significantly more floor space and introduced inefficiencies.
To address this, the processor implemented a 16-ft-tall ambient cooling spiral conveyor from Multi-Conveyor that provides the necessary residence time within a compact vertical design. After traveling through approximately 73 ft of glazing, products transfer directly onto the spiral, where they move at a carefully controlled speed that ensures consistent hardening of the coating.
The spiral effectively compresses roughly 350 ft of conveyor length into a much smaller footprint, allowing the line to maintain continuous operation without interruption. By elevating the cooling process vertically, the system avoids the tradeoff between dwell time and throughput that often limits horizontal layouts.
Equally important, the system accommodates real-world production variability. Products enter the line from an existing wire belt conveyor in random spacing and orientation, yet move smoothly through the spiral without the need for additional spacing or alignment mechanisms. Once the glaze has set, products exit the spiral and transfer onto an overhead conveyor via a pivoting decline, seamlessly feeding the next stage of processing.
Sanitary design was a critical factor given the exposed nature of the product. The system features stainless steel construction throughout, including washdown-rated components, continuous welds to reduce potential harborage points, and accessible design elements that support cleaning and maintenance. Operator safety was also addressed through the addition of side guarding along the spiral structure.
The result is a system that allows the processor to maintain line speed while ensuring consistent product quality. By effectively decoupling dwell time from throughput, the spiral conveyor enables precise control over the glaze-setting process without requiring additional floor space or introducing bottlenecks.
For bakery and snack manufacturers, this type of vertical conveyor approach highlights a broader trend: using spiral systems not just for accumulation, but as a way to manage time-dependent processes such as cooling or coating set. In applications where both efficiency and product integrity are critical, vertical solutions can provide a practical path forward.
