Brunk Upgrades to Smaller and Smarter Torit PowerCore®

When Brunk Corporation, which pulverizes PE plastic into powder for
the rotational molding industry, decided its cartridge dust collector
wasn’t doing the job, the company explored alternatives in traditional
baghouse technology. Leery of the large size and hefty price tag of
traditional baghouses, Brunk based in Bloomington, Minnesota decided to
beta test a smaller and smarter baghouse alternative in January
2007—Torit® PowerCore® with PowerCore® filter packs.

“I’m very impressed with Torit®PowerCore®. It’s a very small footprint
for the amount of filter area you get in a unit,” said David Loeffler,
Plant Manager at Brunk Corp. “I used to have a FARR 8-D cartridge
collector for my attrition mills but the filters would plug after a
couple weeks, reducing air volumes and decreasing productivity. I
considered replacing it with a larger, more expensive baghouse collector
but then we tried Torit® PowerCore® and it gave us the right amount of
filtration area in a much smaller unit.”

Brunk has four attrition mills ducted to its Torit® PowerCore® collector. 
Torit PowerCore filter packs are only seven inches tall compared to a
typical eight- to 12-foot-long filter bag. Torit PowerCore filters are
substantially smaller and handle more air volume per filter pack, which
allows the height of the collector to be reduced up to 50 percent.

Typically, one PowerCore® filter pack with proven and patented Ultra-Web
technology replaces six eight-ft. filter bags.  This significantly
smaller number of filters reduces the time and labor cost of filter
maintenance. The small, lightweight PowerCore filter packs have handles
for easy serviceability, are changed from the clean-air side of the
collector and can be replaced without tools in minutes.

“We were replacing filters in our previous collector every few weeks,”
said Loeffler. “We’re just now, after more than a year, replacing our
trial Torit PowerCore collector with a production unit and from the
results I’ve seen so far, I don’t expect to replace my filters for a
long time.”

Torit® PowerCore® with PowerCore® filter packs are only available from
Donaldson® Torit®. Proven in engine filtration for nearly a decade, Torit®
PowerCore® technology has more than 100 pending and issued patents.

Application Data:

  • Airflow:             6,000 CFM
  • Contaminant:    Pulverized Polyethylene, Size 45-645 microns diameter
  • Pressure Drop:  3.5 inches water gauge (after 6,000 hours without
    changing filter)
  • Loading:           111 pounds per hour


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