Cincinnati REDS Blow Molded Seat Pan and Back for the 2015 MLB All-Star game

Hamilton County came to us to replace the existing seating in the Cincinnati Reds Stadium. The current seats were not made to correct specifications and were failing. The seats were cracking and falling out of the metal brackets. I quickly realized the issues and we made some design changes. There were 8 new molds made to replace the seating. The widths are 19″,20″, 21″ and 22″ of the Seat Pan and Seat Back. The new molds are all CNC machined from aluminum billet. The Reds had a problem fastening the seat pan to the metal brackets. The 1/4-20 nut would strip out of the part so we came up with idea of molding a wingnut into the part and using air cylinders to push it up into the part during the molding process. It worked perfect and the whole project was a huge success. It saved Hamilton County over $2 million dollars.

Seat Back Bottom Half

Seat Back Top Half

Seat Back-Back Half

Cincinnati REDS Blow Molded Seat Pan and Back Highlights

  • 150° Operating Temperature on Mold

Brass Air Cylinders

  • Light Sandblast Finish
  • Aluminum Billit M1 Plate
  • Aircylinders water fittings
    • 19″
    • 20″
    • 21″
    • 22″

CNC aluminum mold

  • Gun drilled for water temperature control

Spring Loading Clamping System

  • Grip the plastic while molding

Air Cylinders

  • To Blow Pins
  • To move the wing nut up and down

40,000 Seats wer made for the MLB ALL-STAR game in 2015

  • 3D CAD was provided and then a tool was designed to make the parts
  • Stadium Seating
  • 16 weeks for 8 molds
  • Ohio Pinnacle Plastic Products
  • Stadium Seating for Back and Pan Blow Molded Parts

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