Snack food production depends on consistency. Dough needs to reach the line with the same moisture, texture, and composition hour after hour. For large manufacturers, batch mixing can make that difficult, as small differences between batches may carry through to the finished product.
Exact Mixing, a division of Reading Bakery Systems, has spent more than 25 years developing continuous mixing systems for snack producers that need a steadier, more controlled process.
Where Batch-to-Batch Differences Begin
Even when a batch is mixed correctly, the dough can continue changing while it waits for the next stage of production. At low volumes, that may have little effect. On a high-capacity line running dozens of batches per shift, however, those differences can affect product weight, size, texture, and overall consistency.
Continuous mixing removes much of that waiting time. Ingredients are continuously metered into the mixing chamber, and mixed dough exits at the rate the downstream line needs it. Instead of producing separate batches that sit before processing, the system creates a steady flow of dough for the line.
Match the Mixer to the Product
Snack formulations vary widely, so Exact Mixing offers several mixer models designed for different products, moisture levels, and mixing requirements.
The EX Continuous Mixer is used for a broad range of doughs, including wheat-based snacks such as pretzels, bread chips, rye chips, and sushka. It can handle both stiff, low-moisture formulations and higher-moisture doughs while controlling heat generation during mixing.
The FX Continuous Mixer is designed for products where precise hydration is especially important, including baked chips, corn chips, multigrain snacks, and rice crisps. It helps distribute limited amounts of moisture evenly through dry ingredients to reduce wet and dry pockets.
The lineup also includes the HDX, MX, and LDX Continuous Mixers, giving manufacturers additional options for different dough consistencies, ingredient profiles, throughput requirements, and production goals. Rather than forcing every product through the same mixing process, Exact Mixing can match the equipment and system design to the needs of the formulation.
Precision Starts With Ingredient Delivery
Consistent mixing begins with accurate ingredient delivery. Exact Mixing systems use Loss-in-Weight technology to meter dry ingredients gravimetrically. Feeders continuously compare actual delivery with the programmed set point so deviations can be identified and corrected.
Liquids are controlled through metering pumps, flow meters, and closed-loop controls. Systems can also be jacketed when ingredients need heating or cooling. For more difficult inputs, such as solid fats, pastes, delicate particulates, or two-phase liquids, Exact Mixing can engineer specialized feeding solutions.
A central control system ties the process together, giving operators real-time visibility into ingredient delivery and mixer performance.
Built for High-Volume Production
Exact Mixing systems can support production rates ranging from approximately 200 kg per hour to more than 10,000 kg per hour. Depending on the application, one mixer may also feed multiple downstream lines.
Continuous operation can reduce the labor associated with loading, unloading, and monitoring individual batches. Ingredient and process data are logged electronically, creating a traceable production record that can support quality control and troubleshooting.
The equipment is also designed for day-to-day plant operations. Clamshell construction provides access for cleaning, sanitation, and inspection, while quick changeovers help limit downtime between products.
For some applications, including pet food, continuous mixing can also support more consistent monitoring and documentation of processing temperatures.
Keep Every Run Consistent
When snack production runs at high volume, even small differences in the mixing stage can affect the finished product. Exact Mixing systems combine precise metering, application-specific mixer designs, and real-time controls to deliver a steady stream of uniform dough from start to finish.
Ready to see what continuous mixing looks like at your production rate? Contact Exact Mixing to talk through your snack manufacturing needs.
