Precast Aeration Tunnel

Hanson Silo Company LP • 320-664-4171

Hanson Silo precast concrete aeration tunnel

Reprinted from Grain Journal May/June 2019 Issue

Hanson Silo Company has been making precast bunker silos since 1916.

In spring 2019, the company introduced a precast concrete aeration tunnel to save time and labor at construction sites for flat storage grain buildings.


  • Available in heights up to 16 inches and widths up to 48 inches.
  • Manufactured using a world-class semi-automated drycast concrete machine.
  • Up to 1,300 linear feet of tunnel can be manufactured each day.
  • Each precast tunnel can be 30-48 inches wide with an inlay for steel grating and screen.

"The alternative to a precast concrete aeration tunnel is a cast-in-place concrete air tunnel, which requires thousands of feet of forming by hand," says Director of Business Development Mike Hanson. "It also takes up weeks of valuable site time. With our precast concrete aeration tunnel, all the lead time can be used in our yard, and the aeration tunnel can be set up in a day of site time."

Arduous Task Eliminated

"Creating a cast-in-place air tunnel is one of the most arduous tasks in constructing a flat storage grain building. Or precast concrete aeration tunnel saves customers time and labor," he adds.

About Hanson Silo Company LP

11587 CR 8 SE
Lake Lillian, MN 56253

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In This Issue

Grain Journal May/June 2019

View this review and more in the Grain Journal May/June 2019 magazine.