Engineered Roller Gate Handling Adipic Acid

Published: December 18, 2018

Figure 1

Client: Chemical Company – Eastern USA


After rebuilding a silo, the end user sourced this gate to feed powdered adipic acid into a screw conveyor below. Powdered adipic acid is used in the production of nylon.

Size: 55 x 28 in (rectangular) | 1,400 x 710 mm

Weight: 1,465 lb | 665 kg

Figure 2


  • Both gates are housed in a common frame, closing toward the center of the frame. (Figure 1)
  • A custom engineered Special Service Inlet protects against wear to the seals and blade rollers as materials pass through either gate. (Figure 2)
  • Dual cylinder pneumatic actuators on both ends of the gate. (Figure 3)
  • Two independently operated blades (one on each end of the gate).
  • Four lifting lugs (one on each side of both bonnet areas) to aid in gate installation.

    Figure 3

  • Gate frame, blades & other material contact areas constructed from 304 stainless steel to address compatibility issues when handling acidic materials.

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