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Tandem Bundle Squaring/Strapping System Raises the Bar

EAM-Mosca is pleased to introduce the Mosca TRC6-SQ3A-Tandem high-speed corrugated bundle squaring/strapping system. As with prior systems, the new Tandem features a standard arrangement of a four-foot entry conveyor, a first-stage Mosca SQ3-A squaring corrugated bundler, a second four-foot pacing conveyor and then a second-stage SQ3-A. The Tandem configuration can dramatically increase bundle conditioning and strapping speeds when used together, or eliminate bottlenecks by providing backup for one another.

Mosca asserts that this system will advance the impressive reliability levels of its prior Tandem system, which has contributed to the company’s customers reaching new production targets on their high speed conversion lines. The conveyors provide a pacing function to enhance throughput of the system. The SQ3-A squaring bundlers, which are available with conventional heat seal or Mosca’s proprietary Sonixs ultra-sonic sealer, are outfitted with Mosca’s latest Standard 6 Strap-Path technology. This generation of product offers increased precision in the manufacture and assembly of the strap feeding system to reduce operational faults, boosting overall cycle success and system productivity. In addition, the open sealer design and sealed bearing construction reduce susceptibility to operational particulate buildup, extending cleaning/servicing intervals and further improving uptime results.

The individual SQ3-A squaring bundlers feature automatic setup based on bundle dimensions that may be operator entered at the HMI or through hard-wired, serial or Ethernet based network communication. Aligning the bundler with bundle centers is the only setup function not automated. Installing a commercial centering conveyor upstream removes this task from the setup protocol. With the ability to square bundles from 8” wide x 11” long to 56”wide x 40” long, the system can handle the product range produced by most box plants.

The standard tandem system includes a 30” long by 4’ wide conveyor that can be switched out for a bundler for servicing. In this case, single-stage automatic bundling is the standard operating mode. Optional floor mounted caster guides assure easy insertion and removal of the banders, while maintaining precise in-line positioning during operation.

Tandem controls offer two basic operating arrangements. The high-speed tandem selection straps incoming bundles alternately with the two banders, for a maximum throughput of 36 bundles per minute. There is also a primary/secondary selection which uses a single bander to strap all product, holding the second in readiness to automatically assume this role in the event of a fault. The high-speed Tandem will also automatically switch to a single active strapper should a fault occur for any reason.

Popular options include dual coil dispenser, dual dispenser with automatic coil changer and signal light towers to indicate operational readiness and low strap conditions to further increase uptime.

The Mosca SQ3-A-Tandem builds on the impressive success of its predecessor SQ2-A Model to further advance reliability and reduce operating costs, while helping users to improve the productivity of their high speed Flexo investments. Its high performance combined with intuitive operation and conceptual simplicity make it the best bundling system choice for plants that are committed to leadership in high speed/low cost box production.

EAM-Mosca Corporation provides high-performance strapping system solutions to a variety of industries, including food, graphic arts, mailing, fulfillment, logistics, corrugated, wood, and other industrial or consumer goods. We combine innovative equipment with strapping materials manufactured to maximize machine performance and customer support programs that help our customers to meet their performance and productivity goals.

To learn more about any of EAM-Mosca’s other productivity enhancing strapping systems, please call us at 800-456-3420, or email us at You can also connect with EAM-Mosca on YouTube (, Twitter (, and Facebook and LinkedIn via the links above.

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