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The largest system for the shredding of bank notes

Begin: 01.02.2019
The largest system for the shredding of bank notes

A National Bank in central Asia has put the largest system for the shredding of bank notes into operation recently. Thanks to customer-oriented system engineering, Hunkeler Systeme AG was in the position to win the tender for this large contract.

A National Bank in central Asia has invested in a highly automated large-scale system for the destruction of bank notes. It is the largest and most efficient system of its type that Hunkeler Systeme AG has yet supplied to a financial institute. Two identically configured processing lines can each shred up to two tons of bank note material per hour. The end product is tiny particles. Their size of six by six millimeters corresponds to security level P5. The particles are compressed to compact briquettes and then burnt. That the system engineering department was focused on the requirements of the customer is one of the decisive reasons why the National Bank chose Hunkeler Systeme AG. The National Bank managers feel that the Swiss company has shown that it understands and is master of the complexities of such a system. The system from Hunkeler Systeme AG has entirely fulfilled the requirements for the secure destruction of bank notes in an automatically controlled process. The proximity to the sales and services center in Russia was another important factor in their decision.

The bank notes are delivered by lorries in bags which are manually emptied onto the conveyor belts. One single fill charge weighs 3.5 tons. The shredding process takes place in two phases, in a shredder and a downstream granulator. The line needs up to one hundred minutes for complete shredding of a charge and the compaction of the particles to briquettes. One single briquette weighs more than two kilograms. Each line of the high performance shredding system can process 1,000 briquettes per hour. The briquettes are then automatically transported via rails to the lorries waiting in the external concourse area. The two-phase shredding process and the compaction of the particles to briquettes are integrated into an automatically controlled workflow. The shredding of the bank notes takes place in several closed and secured sectors. Only authorised personnel, identified with a number code, have access to the room. Workflow-management- software monitors the secure destruction of the notes and bonds.

The software continuously compares the feed quantities against the output quantity of shredded material. Every step of the process is recorded in a job report and can be traced back to the start. In this large-scale system, the fan is placed at the end of the process chain. The vacuum created in this way guides the bank note particles to cutters and then to the briquetting press. Due to the so-called negative pressure principle, the paper dust created by the shredding process stays in the conduits. The dust-laden air is then cleaned in a filter system. The customer placed the order for the delivery and installation of the two shredding lines at the end of April. The shredder, granulators and briquetting presses have an overall weight of 80 tons. Twelve lorries transported the material about 6,000 kilometers from Wikon to the production site in central Asia. The installation began on the 30th of July; the system has been in operation since the 14th of September.