Hytera logistics and distribution two way radio communication product solutions

Manual transfer stations: Rotacaster delivers for Australia post

The problem: Australia Post used ball transfer tables for manual sorting of bulky
international mailbags weighing up to 35 kg. This required substantial and repetitive
manual effort by operators to push, pull and rotate the bags, exposing them to potential
musculoskeletal injury.

The Challenge: To address this issue Australia Post looked for alternative solutions that
would substantially reduce operator input and exposure to risk of injury. With a targeted
push/pull force of 50N (5kg) for a 35Kg bag, it was acknowledged that this target would
in all likelihood require a powered solution, adding to operating and maintenance costs.

Rotacaster Solution: Rotacaster proposed a manual transfer solution utilizing their
48mm Rotacasters combined with polyacetal (POM) spacer rollers. The roller’s smaller
diameter was designed to provide support for the soft packaging, while minimizing
friction and reducing the number of Rotacaster wheels required. Australia Post and
Rotacaster collaborated on the design and construction of the transfer table. Trials were
successfully undertaken at an Australia Post gateway.

Outcome: The solution resulted in a significant reduction of push/pull forces to between
40 and 70Nm (4-7kg) in all directions on the table. Australia Post considered this a
remarkable achievement in the absence of any powered assist.

Additional Advantages: In addition to reducing the push/pull forces required, without
the cost noise and maintenance associated with a powered solution, the polymer
surfaces of the Rotacasters and spacer rollers have demonstrated a lower affinity to
adhesion of labels and stickers from packages, further reducing down time and
maintenance costs.

Comment: Rotacaster CEO Peter McKinnon notes "Feedback from operators using the
table has been exceptionally positive. And importantly, the risk of injury has been
reduced. Rotacasters are proving their versatility."

Implementation: With this extremely successful trial result, the remaining transfer tables
at this Gateway facility will be replaced with the Rotacaster solution, with further
upgrades to follow in Sydney, Brisbane and elsewhere.

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