Culture and Society

How are LEGO bricks made?
Answered by Discovery Channel
  • Discovery Channel

    Discovery Channel

  1. Due to the extremely high temperatures and heavy-duty equipment required to manufacture LEGO bricks, the process is largely automated. The first step in the making of LEGO bricks is when acrylonitrile butadiene styrene (ABS) granules are sent to injection molding machines. These machines melt and then mold the plastic granules into bricks and other LEGO pieces with extreme precision. Once the ABS granules have been molded, they're taken via a conveyor belt to a bin. Once a bin fills up, an automatic signal is sent to a robot that then brings the bin to an assembly hall where bricks are stamped with various designs and components are assembled.

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