Rock to Road

Water Conservation

New technology for the industry

June 10, 2015  By Andrew Snook

The horizontal rinse screen rinses away any remaining debris left after the Hydro-Clean’s high-pressure nozzles remove contamination.

A well-known water conservation technology that found its way into washing equipment for the sand and gravel industry, and the natural stone and recycling industries in North America more than a decade ago is now being manufactured in St. Catharines, Ont., courtesy of Haver & Boecker Canada’s Hydro-Clean mobile test plant.

“Haver & Boecker has been selling the Hydro-Clean in North America for more than a decade, and that experience has built the engineering expertise we need here to start manufacturing the equipment here in North America,” says Kristen Randall, marketing manager for Haver & Boecker Canada.

To check out this technology first hand, the Rock to Road team made its way to Glacial Sand & Gravel in Slippery Rock, Pa., where Haver & Boecker, with the help of local distributor Kemper Equipment, put on a demonstration for approximately 50 aggregate producers.

The Hydro-Clean’s design features angled nozzles using high-pressure water to clean contaminated waste materials, converting it into sellable product, while reducing water consumption by up to 75 per cent, when compared to traditional washing technologies. It is designed to recycle up to 90 per cent of the water it uses each cycle.


After dirty material is fed into the hopper, the material moves from the hopper into the washing drum.

“There’s an opening between the hopper and the washing drum, where material passes through the opening and builds up on a discharge belt, which is powered by a VFD, and it builds up to an area just under a washing head that rotates,” explained Haver & Boecker process engineer Michael Honea, during his company’s Hydro-Clean Demo Day, held on April 23 at Glacial Sand & Gravel in Slippery Rock, Pa.

The washing head rotates the material at 90 rpm, spraying water on it at high pressures. The angled spray nozzles create a shoveling effect to turn the material, washing it from all sides. The material is then fed via conveyor to a vibrating screen where the final rinse process takes place.

The Hydro-Clean is designed to clean raw material mixtures with particle sizes of 0 to 80mm, and offers capacities up to 360 TPH. The material throughput rates are adjustable according to the level of contamination.

It can be used as a single solution or be added to an existing process, or alternatively, be used as a complete solution that includes downstream screening machines, dewatering screens and water circulation.

The lower water consumption allows the Hydro-Clean to be built more compact than traditional washing technologies, and weighs up to 60 per cent less than log washers or scrubbers, while its modular design and small footprint are designed to reduce electricity consumption.

The system is offered in three sizes:


  • Maximum feed size: 2.5”
  • Capacity: Up to 18 (M) TPH
  • System power requirements: 54 HP
  • HC water consumption: 26 to 30 GPM
  • Rinse screen: 2’ x 4’
  • Decks: 1
  • Screen action: Linear
  • Rinse screen water consumption: 36 GPM
  • Total water consumption: 52 to 66 GPM


  • Maximum feed size: 6”
  • Capacity: Up to 180 (M) TPH
  • System power requirements: 199 HP
  • HC water consumption: 70 to 125 GPM
  • Rinse screen: 6’ x 16’
  • Decks: 2 to 3
  • Screen action: Linear
  • Rinse screen water consumption: 300 to 600 GPM
  • Total water consumption: 370 to 725 GPM


  • Maximum feed size: 6”
  • Capacity: Up to 360 (M) TPH
  • System power requirements: 349 HP
  • HC water consumption: 140 to 211 GPM
  • Rinse screen: 6’ x 20’
  • Decks: 2 to 3
  • Screen action: Linear
  • Rinse screen water consumption: 300 to 600 GPM
  • Total water consumption: 440 to 811 GPM

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