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Application Story: Inventure Foods

Inventure Foods satisfies demand for healthy snacks with new seasoning and packaging line

Inventure Foods logoBooming sales of kettle style potato chips has motivated many snack processors to aggressively upgrade their production facilities to keep up with demand for the crunchy hard-bite snack.

Inventure Foods recently felt the pressure of kettle chip popularity at its plant in Goodyear, AZ. Already operating at 90% capacity, Inventure quickly needed to ramp up production when sales of its Boulder Canyon brand natural style kettle chips grew 30% as supermarket chains introduced the product nationally. "The growth of healthy, natural products and our line of Boulder Canyon Natural Foods snack chips brought our Goodyear plant to a point of maximum capacity", explains Brian Foster, Senior VP of Operations at Inventure.

The company quickly responded by completely updating its 60,000 sq. ft. plant in 2011, adding six new kettle chip batch fryers and a state-of-the-art product handling, seasoning, and packaging line. "As a growing food company", says Foster, "we must maintain flexibility in our operations to serve both evolving consumer eating patterns and unique customer needs. We would not be able to support future growth without an investment in our capacities".

But efficient packaging of batch-fried potato chips proved more complex than simply installing new bagmakers. Unlike a steady flow of chips produced by a continuous fryer, kettle chip fryers deliver intermittent batches. And since seasoning applicators, weighers, and bagmakers work most efficiently with a consistent supply of product, these 'waves' of chips can cause inconsistent seasoning and poor packaging productivity.

Packaging platform with FastBack on-machine seasoning, FastBack revolution proportional gates and Ishida CCW-R-214 multihead weighers
Packaging platform with FastBack on-machine seasoning, FastBack revolution proportional gates and Ishida
CCW-R-214 multihead weighers
 
FastBack revolution proportional gate and ClimbBack recirculation conveyor
FastBack revolution proportional gate and ClimbBack recirculation conveyor
Inventure Foods recognized the distribution, seasoning, and packaging challenges unique to their batch potato chip process - and the need for production flexibility to quickly respond to changing markets. "Unlike some other firms our size, we have a healthy presence in every snack food distribution channel", explains Foster. With orders rushing in, Inventure had to boost production in short order without stopping existing operations. After investigating several options, Inventure Foods selected Heat and Control to provide a complete product distribution, seasoning, and packaging line that could be installed quickly and still meet Inventure's long-term needs for product quality, reliability, flexibility, continued growth, and on-going technical support.

Inventure's experience with Heat and Control goes back to 2003. Then known as Poore Brothers, the company installed their first Heat and Control FastBack conveyor line with Ishida weighers and bagmakers at its plant in Indiana, and was impressed by the system's ease of installation, reliability, gentle handling, and efficiency.

Inventure's new system was designed by Heat and Control to even-out the product flow and maximize the run-time of all components for greater production efficiency. "The increased capacity the new line delivers enables us to be more flexible in scheduling production to meet demand and to balance our inventories in a more efficient manner to service our customers", explains Foster.

Batches of chips first enter the system through a SwitchBack accumulation conveyor modified for in-line product transfer. As a buffer between processing and packaging, the SwitchBack evens the flow of chips, delivering a steady supply to the FastBack Revolution distribution conveyors and on-machine seasoning system. Gentle FastBack horizontal motion distribution conveyors are equipped with patented cylindrical Revolution gates direct-mounted to the conveyor pans.

Revolution on-machine seasoning tumble drum over an Ishida weighe
Revolution on-machine seasoning tumble drum over an Ishida weigher
The Revolution gates rotate to precisely deliver the exact amount of chips required by each seasoning applicator, weigher, and bagmaker, while allowing the main supply of chips to continue to downstream units. This proportional distribution assures a continuous and consistent flow of chips with no "starvation" and just the right amount of feed to each seasoning and packaging system. "Unlike slide gates, gateless designs, waggle conveyors, and other product diverting methods, the Revolution gate has no pinch-points to damage product or cause injuries and it closes completely to prevent cross contamination", explains Blake Svejkovsky, product handling systems manager at Heat and Control. "It automatically adjusts to accurately deliver any quantity of product - from a single-file supply of chips to full capacity. This precise yet versatile product delivery is critical for efficient seasoning application", he notes.

"While on-machine seasoning has been around for years, the advent of several key technologies has recently produced seasoned product quality and cost savings processors are really excited about", explains Svejkovsky. "Technology such as the Revolution proportional gate and integrated conveying/ tumbling systems, both of which were developed and patented by Heat and Control, have produced measurable performance improvements making Heat and Control the industry leader in OMS technology".

Rather than applying seasoning as chips leave the fryers (only to have it shake off during transit to packaging), the Revolution system seasons chips at the point of packaging. The flow of chips and seasoning are measured continually so the system knows exactly how much seasoning to apply. This produces consistent application rates and low standard deviation between chips and bags of chips.

"...Heat and Control stood out with the level of service and dedication to understanding and meeting our needs. Other vendors offered equipment solutions but Heat and Control offered a total package solution."
Brian Foster, Senior VP of Operations at Inventure       

Additional advantages include the ability to increase fryer operating time, reduce warehouse space and improve service to sales; utilize a single source of product and apply a different seasoning at each packaging station; reduce the loss of seasoning; accurate and consistent application rates; fast changeovers; reduced risk of cross-contamination; and lower sanitation costs.

"The FastBack seasoning system is much easier to clean and maintain than our existing equipment", says Foster, adding that "the Revolution gate system offers gentle product handling unseen in our current equipment."

Operator with Ishida CCW-R-214 control screen
Operator with system control screen
 
Operator with Ishida Atlas 233 bagmakers
Operator with line of Ishida
Atlas 233 bagmakers
From the seasoning applicators, chips are directly deposited onto Ishida CCW-R-214 weighers that are direct-mounted to Ishida Atlas 233 vertical form-fill-seal bagmakers. Each high-speed single sealing jaw continuous motion bagmaker can make up to 140 bags/minute. A step up from traditional intermittent bagmakers which typically run in the 80 bpm range, the Atlas 233 is designed for products running at medium speeds in continuous motion. "The Atlas 233 is an economical solution that is perfectly matched for products that run in the 80-120 bpm range. This mid-range system is easy to operate, delivers efficient production, and is a great value proposition", notes Jeff Almond, Snack Food Industry Manager for Packaging at Heat and Control. "Before Ishida developed the Atlas 233, processors had only two choices for potato chips and similar products: Either stretch the capabilities of an intermittent motion bagmaker and accept the increased life cycle cost; or under-utilize the high speed and performance features of a premium bagmaker and live with having over-invested in a wasted asset". Atlas 233 solves that challenge by delivering tailored performance at the right price", explains Almond.

Making perfect packages isn't the only job of the Ishida Atlas bagmakers: they actually control the flow of product through the entire system. Each Atlas 233 tells its dedicated FastBack Revolution gate how much product it needs and when to deliver it. Each Revolution seasoning applicator self-adjusts to match the changing flow of product.

"It is imperative for high quality and performance that an OMS system be designed and operated as a single integrated machine rather than a individual unit operations", emphasizes Svejkovsky. "For Inventure, this system approach was even more critical as their bag mix, seasoning flavor profiles, and the basic process of batch frying put special demands on the system". "We find our new equipment is easier to clean and operate than our existing equipment, and it affords much greater flexibility to meet our needs", adds Inventure's Brian Foster. "The investment has provided gentler product handling, faster changeovers, and efficient sanitation by design", he concludes.

All conveyors in the system use FastBack horizontal motion to reduce product damage and loss of seasonings. This includes a special product recovery loop that handles the inevitable downtime required for bagmaker film changes. Rather than using a traditional belt conveyor and its sanitation and belt tracking problems, Inventure's recirculation system relies on Heat and Control's patented ClimbBack conveyor which conveys up to 8-degrees uphill. In addition to accumulating chips and returning them to the distribution line, the ClimbBack eliminates stale product and waste problems common to traditional recirculation systems.

"Heat and Control offered delivery times needed to meet our schedule", recalls Foster. "From the project design phase through vendor selection and installation, Heat and Control stood out with the level of service and dedication to understanding and meeting our needs. Other vendors offered equipment solutions but Heat and Control offered a total package solution. Their commitment to customer service was outstanding including several things Heat and Control did at their own expense to insure our target deadlines were met".

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