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CASE STUDY | FOOD & BEVERAGE
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Hawaiian Host Group Overcomes Multi-Format, High-Throughput Packaging Challenges Using Just One Machine

Cama Group develops custom technology to carefully and precisely package delicate confectionary at scale and at speed – no matter the packaging format.

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Hawaiian milk chocolates on a plate
Hawaiian Host Group logo
Challenge

Hawaiian Host recognized the need to automate and digitalize its packaging routines, but the need for a wide array of packaging recipes was compounded by employee cynicism and “stepping into the unknown”.

Solution

A Rockwell Automation solution was installed, which included:

  • ControlLogix® 5580 PAC with integrated safety
  • POINT I/O™
  • Kinetix® 5700 servo drives
  • Kinetix 5300 servo drives
  • Stratix™ 5700 switches
  • PanelView™ Plus 7 HMIs
  • PowerFlex® 525 variable-speed drives
Result
  • Close working relationship both with end user and leading global packaging OEM
  • Automation architecture helps make multiple packaging recipes fulfillable on a single machine, with minimal between-batch downtime
  • Scalable automation foundation for growth and further digital transformation
  • Electronic architecture underpins Industry 4.0-driven AR approach
  • AR and digitalization attract younger workers from limited/isolated population

Consumers have never had it so good. Every conceivable product and convenience in package sizes and formats for every occasion – singles, pairs, multiple flavors, snack size, family size, jumbo size... you name it, you can find it. Added to this variety is marketing and brand awareness, with seasonal ranges, gift packs, and volume-based promotions to name but a few.

From a production perspective this variety dictates batch runs and throughput, but it’s in secondary and tertiary packaging that the real challenges start, with product types, product volumes and box/packet/promo styles all demanding a wide range of packaging recipes. Added to that, many leading end users demand these multi-role capabilities from a single machine. Packaging OEMs really do have their work cut out.

Challenge

A case in point would be the challenge set by Honolulu-based Hawaiian Host – a leading North American confectionary company and the world’s largest manufacturer of chocolate-covered macadamias. 

Hawaiian Host Group tasked an Italian company, Cama Group to develop an automation solution for the primary packaging of its macadamia-based products. 

Hawaiian Host Group was interested in automation, but in a phased approach that would help set its team up for success, while managing the challenges unique to producing chocolate products in Hawaii.  

While automation can help with efficiency and drive higher production rates, it can be inflexible with accommodating future product innovation. The Cama team rose to the challenge, working with Hawaiian Host Group to design a solution that maximizes its operation while providing a modular approach that will help it navigate future product innovation.

Solution

The line that Cama Group created for Hawaiian Host Group was tailored specifically to this unique array of packaging challenges and had a digitalized control architecture from Rockwell Automation at its core.

In operation, following quality, shape, and positional information fed to them from an advanced laser scanner, delta robots use specially designed grippers to pick the chocolates from the in-feed conveyor and then gently place them into polyethylene terephthalate (PET) trays that arrive in parallel from a de-nester.

Once filled, single trays – or pairs of trays with a cushion sheet between them – are loaded into carton trays before lids are formed and tucked in. The end results being completed boxes containing anything from four to 32 chocolates.

The line is also capable of undertaking bulk packaging, where the robots load chocolates directly into cartons. This bulk packaging recipe is also used as a fall back in case of any line issues and can prevent significant downtime. Completing the process, the boxes are x-rayed and then conveyed to a case packer at the end of the line.

Result

Hawaiian Host Group is not unique in having a real desire to automate, but with a healthy dose of caution behind it. “We had a number of reasons to take this journey,” explains Chris Rabago, director of manufacturing at Hawaiian Host Group, in a recent ROKStudios session. “Our isolated island location carries unique challenges. As we considered our transition into automation, those challenges were important to address to ensure we set ourselves up for success.

“Some of our staff were naturally cautious,” he continues, “with the understandable but stereotypical belief that automation was here to replace them. But that was not our focus at all. We wanted to optimize our operations by investing in technology that would complement and empower them. We put a big focus on how our employees would interact with robots. We wanted to leverage an intuitive user interface that’s approachable and aligns with a growing workforce that prefers a more digitalized working environment.”

Billy Goodman, managing director at Cama North America, explains the process: “We always adopt a consultative team-based approach. In fact, Cama’s work on this project was recognized by the 2023 World Confectionery Conference, where we won the Team of the Year award.

“The first step is to analyze and audit the precise needs of the customer,” he continues. “Then, using our ‘sand box’ of machines and modules, which include top- and side-load technologies, in conjunction with third-party solutions – vision, grippers, and, of course, automation in this case – we create customized solutions that match the precise needs of the application. Every project really is unique, even if the machines’ operating principles are relatively standard. In this instance, we had to balance multiple considerations, including personnel, factory space, real estate, and the operational demands.

“In these sorts of projects, partnerships are key,” Goodman explains, “not only to develop the initial concepts, but to then carry the package all the way through to fruition; and not just to day one, but to day 365 and far beyond. Some of our Industry 4.0 tools certainly suit the younger generation, who grew up working on phones and tablets.”

"We have augmented reality for training, changeovers, and maintenance, which not only excites and engages people, but also makes machines operate more efficiently."

Eric Chalengeas, regional vice president for South Europe at Rockwell Automation, concludes: “It’s impressive that most of the technological challenges for this project were completed during the pandemic and post-pandemic periods. We were fortunate to already have a very close relationship with Cama Group. Not only is it a member of our PartnerNetwork™ as a gold-level OEM, but we also partner on research and development and product testing, and the success of this project and the resulting technology are testament to this.

“We know it can be nerve wracking to take such a huge leap into what may be the unknown,” Chalengeas continues, “so we are sympathetic to the needs of the end user. In this case, Hawaiian Host Group now has the basis of an eminently scalable digital transformation, which will allow it to slowly grow its capabilities without it becoming too overwhelming. A feature that Chris perfectly described in his ROKStudios interview as ‘training wheels’.”

Published May 31, 2024

Topics: Accelerate Digital Transformation Food & Beverage Food Packaging Servo Drives Sensors & Switches ControlLogix I O Modules
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