Coolant & waste management in America's heartland


Courtesy of Courtesy of PRAB, Inc

Hydraulic pump manufacturer needs a filtration system to help reduce coolant costs, combat foul odors and dermatitis caused from various coolants used in machining cells.

Iowa Industrial Hydraulics


Guardian Coolant Recycling System

Business Benefits Realized

  • Reduces new fluid purchase costs
  • Reduces hazardous waste disposal costs
  • System payback in less than one year
  • Easy operation, designed to minimize operator involvement and training

During the late 1980's, Iowa Industrial Hydraulics, like many other manufacturers, was experiencing various problems with water soluble coolants. Dermatitis was a continual battle, foul sump odors were common, machine cleaning was left to individual operator's discretion, there were approximately eight different coolants being used and costs were out of control.

A group was formed to investigate the various problems associated with coolants. Early in this study, it became apparent that the lack of coolant management was the primary problem.

Once the group had developed the management program, it was soon realized that system replacement costs would become prohibitive. The obvious solution to controlling coolant cost was recycling. The team determined that two important issues must be addressed for a solid reclamation program. First, a high quality recyclable coolant would replace all of the various coolants in the plant. Once that coolant had been found, then an appropriate reclamation system would be chosen.

The team found a good water soluble oil that performed well in all machining areas. This same coolant was alsowell suited to reclamation. At this point, a Hyde Guardian 400 was installed. The coolant for reclaiming is transported to this unit via a Hyde 175 gallon Sump Cleaner. The reclaimed product is pumped through distribution lines to drops located throughout the plant. This system handled all but the largest sump. This sump, a 750 gallon coolant system, was equipped with a Hyde 5.0 reclamation unit. As part of the coolant management program, each machine sump was cleaned monthly and the coolant was disposed of annually.

Coolant purchases were reduced by 60% (a savings of $16,000 per year), tool life improved, and productivity improved as a result of Iowa Industrial's and Monlan-Group’s efforts.

In late 1993, Iowa Industrial Hydraulics fully implemented its coolant management system. This system combined with the Hyde reclamation systems has further reduced coolant costs, improved productivity, drastically reduced dermatitis problems and improved profits. The success of this program has allowed for the purchase and installation of two model 1010 Universal Clarifiers and a Hyde Ultrafiltration System, which have completely eliminated disposal costs and heavy metal discharge problems.

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