Filling devices

Excellence in automated cone filling devices

We are proud to present our pre-rolled cone filling devices, complete industry solutions for quick and precise bulk cone filling.

Mitra Prodin is the inventor, exclusive manufacturer and patent owner of the technology behind the Knockbox and the Thumper pre-rolled cone filling machines. All of our bulk cones are compatible with the Knockbox 50, 100, 300, 500 and Thumper 100.

To become a wholesaler, contact an official Knockbox or Thumper distributor near you:


USA and Canada: Futurola USA

Europe: Futurola Amsterdam

Rest of the world: inquire directly to

Thumper 100

USA: HBI International

Canada: HBI Canada

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