Capable of producing three aggregate and two washed sand products, the McLanahan UltraWASH Modular Wash Plant is the next generation of wash equipment. Our complete line of modular processing equipment is designed for use in sand and gravel operations, C&D waste recycling, industrial sands and mining. These plants can be configured in a variety of ways to meet your unique processing needs while still being quick to set up and easy to move as your deposit changes.

McLanahan UltraWASH Provides Tri-Parish Sand and Gravel with Clean Product in a Compact, Modular


Tri-Parish Sand and Gravel is a dry mining operation located in Walker, Louisiana. They produce C-33 concrete sand, pea gravel and #57 concrete gravel for use in their ready mix operation, Parish Ready Mix.  


James Nolan, who owns Tri-Parish Sand and Gravel with his wife, Gail, has always been concerned about the cleanliness of the products they use in their ready mix facility. They strive to deliver quality products on the concrete side of their business, which starts with the material used to make those products.

To better control the quality of their concrete products as well as lower their production costs so they could pass those savings onto their customers, the Nolans purchased land for dry mining their own sand and gravel. They looked at a few wash plants in different parts of the country for processing the feed and separating it into the various products needed at their ready mix facility.


In 2020, Tri-Parish purchased the McLanahan UltraWASH 6206 Modular Wash Plant that debuted at CONEXPO/CON-AGG in Las Vegas. Availability was a key factor in the purchasing decision. Tri-Parish needed a wash plant quickly, and the McLanahan UltraWASH offered an entire wet processing plant in one compact, modular unit that was ready to run. [CONTINUE READING]



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Easily Configured for Your Operation

Modular Wash Plants, such as the McLanahan UltraWASH, are assembled from containerized washing modules and produce up to five products - three clean aggregate and two washed sand fractions. McLanahan produces a complete range of modules that can be configured to create a washing solution flexible enough to meet any production need. 

The McLanahan UltraWASH was designed with several unique features, including: 

    • A convertible sump for a single-sand, single-wash option or a bolt-in divider plate that creates a twin-sand and pre-wash version.
    • The Fines Forward Slide that can be manually adjusted to divert a portion of raw fines into the coarse sand processing stream to balance the downstream process for optimal plant capacity.
    • The unique Eze-Riser that works with the pump service trolley to enable safe and efficient pump maintenance, such as changing the impellers or replacing the casing liners.
    • An aggregate discharge hood that allows for the recombination of aggregate product sizes for consolidated stockpiling or downstream processing via the manual operation of the hood's rubber-lined blending gates.



In addition to our traditional custom engineered plants, McLanahan has long been producing skid-mounted modular wash plants that are easy to move, convert and set up. The UltraWASH Modular Wash Plant line takes those plants to the next level with a set of standardized units that can be containerized for shipping and supplied quickly. It has also been engineered with all McLanahan field-proven equipment, along with several key features that make it more flexible and easier to maintain.

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Sump Conversion

With a conversion kit, the sump can be changed between a one- or two-pump setup, and the sand process can be altered to process a single-wash, a double-wash or a two-product sand.

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Pump Maintenance

With the one-of-a-kind Eze-Riser, a foot pedal lifts the discharge pipe from the pump and utilizes a locking mechanism to hold the pipe aloft, offering the clearance needed for the pump to roll out on the trolley service platform.

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Advanced Monitoring

The UltraWASH control system is designed to accurately predict wear and maintenance activities, as well as make automatic adjustments to your system - all available through remote and mobile access.

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