Utra Scraper™ Sludge Collector

MRI’s U/S Ultra-Scraper Sludge Collector is computer-controlled and features a power pivot that transmits a 20,000 pound force from hydraulic drive to scraper racks, enabling removal of dense sludge. MRI’s sludge collectors fit perfectly with MRI’s Plate Settlers.

MRI U/S Ultra-Scraper™ Sludge Collector

Efficient, Fast Action Removes the Heaviest
Solids and Lightest Flocs

The only reciprocating linear sludge scraper made in the USA, the
MRI U/S Ultra-Scraper™ Sludge Collector is equipped with a grid of
low-profile, stainless steel scraper blades that work beneath the
sludge blanket.

To compare the advantage of hoseless suction with scraper sludge collection, read about MRI Hoseless Cable-Vac Sludge Collector.

This floor-hugging action prevents re-suspension of settled solids and allows up to 5 times higher sludge transport velocities than Chain & Flight or other higher profile sludge collectors.

MRI’s U/S Ultra-Scraper Sludge Collector provides high-capacity collection and removal with four key components:

  • Pre-assembled racks of scraper blades, installed without field welding
  • Reliable drive unit, operated with either hydraulic or electric power
  • Power pivot that transfers energy to sludge removal grid with minimal moving parts
  • Signature control system offers easy adaptability for new construction and retrofit projects

Performance Advantages

Low-profile operation and design outperforms high-profile sludge collectors:

  • High sludge transport speeds range from 1 to 10 FPM
  • Sludge travels to either the end or center of the basin and is removed by the cross collector
  • Hydraulic drive ensures reliable power and has automated position sensing technology*
  • Can be used for a variety of applications including potable water residuals; primary, secondary, or tertiary wastewater clarification; industrial product recovery; and remediation
  • High rate of solids removal enables intermittent operation and quick adaptation to changes in water quality
  • Low-profile scraper blades do not re-suspend settled solids and allow higher sludge-transport velocities
  • Cross-collector replaces multiple sumps with a single draw-off point
  • Short travel distance and simple blade design eliminate the maintenance difficulties found with circular rake collectors

MRI’s U/S Ultra-Scraper
Sludge Collection System

The scraper moves back and forth as the hydraulic drive cylinder extends and extracts. This migrates the sludge solids to the end of the basin, where it is removed using sludge hoppers, a cross collector, or a suction mechanism.

Scraper Diagram 1 Scraper Diagram 2

The MRI Power Pivot transmits a 20,000 lb. force and enables removal of dense sludge.

Key Features Only from MRI’s U/S Ultra-Scraper Sludge Collector

Factory fabrication eliminates field-cutting and -welding. Pre-made components are bolted together on-site for quick installation, which minimizes down time and installation error.

Automated solids removal reduces down time during annual maintenance shutdowns.

Factory fabrication enables quick installation and significantly reduces basin down time. This photo taken at the Bundamba tertiary treatment facility in Brisbane, Australia.
Factory fabrication enables quick installation and significantly reduces basin down time. This photo taken at the Bundamba tertiary treatment facility in Brisbane, Australia.

Drive components, hydraulic parts, and controls are from top U.S. manufacturers including Rockwell International/Allen-Bradley, Baldor, and Vickers.

Thrust and linkage components are designed to be structurally extra heavy-duty.

End-of-stroke sensors are permanently set to maintain adjustment — no underwater electronics to maintain.

Utilizing hydraulic power to drive the scraper, the power pack pumps the hydraulic fluid to the cylinder. The cylinder then performs the extension and retraction action of the blades.
Utilizing hydraulic power to drive the scraper, the power pack pumps the hydraulic fluid to the cylinder. The cylinder then performs the extension and retraction action of the blades.

Back & forth blade action within sludge layer promotes solids dewatering and sludge thickening.

Cross-braced grid allows layout around columns, while custom blade lengths fit uneven sidewalls and floors for successful retrofit of any basin.

Spare parts are locally sourced, readily available, and stocked in Colorado.

Explore MRI’s Solution for Your Water or Wastewater Project.

Call us at 303.279.8373 to discuss your improving your sludge removal, Contact Us, or Request More Information.

Find out more:

Download the brochure or request a printed brochure.

See an overview of MRI’s water and wastewater treatment solutions.

to top