HemiPleat® Puts Snow Plow Maker's Dust Issues on Ice

Challenge

Fisher Snow Plow uses a plasma table to cut 9.5mm to 12.7mm carbon steel parts in their snowplow manufacturing operation. Farr dealer Dave Brennan of Brennan Environmental sold them a Farr Gold Series® to replace a competitive unit that never worked well. Installed in July 2004, the GS10 was equipped with PTF cartridges totaling 395 square meters of media, producing a 0.94:1 air to cloth ratio for the 6796 m3h air volume. The customer was delighted that they no longer had to replace the competitor's cartridges every 3 to 4 months.

After the GS10 was installed, Fisher Snowplow went to a 24/7 operation, substantially increasing the loading concentration. This resulted in the GS10 not being able to clean down appropriately with the standard cartridges.

Solution

Dave and Farr regional manager Tomm Frungillo worked closely with Fisher Snow Plow to address the increased dust loading and subsequent problems. The modular design of the Farr Gold Series allowed an additional GS10 to be bolted on, making it a GS20. HemiPleat® HMPTF325 filter cartridges were selected for their improved capability for dust release, thanks to the wide and uniform pleat spacing.

Since this change was made in November 2004, this unit has been running steady at 498.2 Pa, maintaining the required 6796 m3h to fully evacuate the plasma table. Fisher Snow Plow is pleased that this solution has resulted in no rise in pressure drop and no loss of suction at the table.