Unlocking the Potential of Log Washers: Everything You Need to Know

Unlocking the Potential of Log Washers: Everything You Need to Know

June 23, 2025 |

Believe it or not, Log Washers do not wash logs. While their name suggests otherwise, Log Washers are heavy-duty pieces of equipment designed to remove clays and deleterious materials in gravel, stone and hard ore applications.

Using rock-on-rock scrubbing, the corrugated, oversized paddles of the Log Washer break down clay and tough, unwanted materials. Log Washers provide various benefits for a variety of applications and can be tailored to suit the needs of your operation.

How Log Washers Work

As water and material enter the Log Washer and are conveyed up the length of the machine.

The corrugated paddles convey the material while breaking down unwanted clays and contaminants. Clean material continues to move up the washer tub of the Log Washer and exits at the discharge point of the machine.

Excess water and deleterious material overflow a weir at the pool area of the machine.

Log Washers sit on an adjustable slope to increase or decrease retention time. Material with a higher percentage of contaminates should be processed on a higher slope to increase retention time.

Benefits of Using Log Washers

Designed to remove clays from coarse material products, Log Washers provide numerous benefits for a range of applications.

Create in-spec products and maximize product value

Log Washers break down tough, insoluble clays and other material that can affect the quality of your product. They are built for aggressive washing to remove the toughest contaminants, allowing you to create a product that meets industry specifications.

With a cleaner product that is in-spec, you will gain the most value out of your material.

Reduce wear on downstream equipment

Log Washers remove tough, deleterious material, minimizing wear on downstream equipment. Removing the clay and mud contaminants eliminates the chance for that deleterious material to wear on downstream equipment, like conveyers or Dewatering Screens, saving you extra maintenance and costly downtime.

Heavy-duty and low maintenance

Log washers are built to be durable, requiring little maintenance. Typical maintenance on Log Washers includes changing paddles, which are replaceable. With the high durability of Log Washers, they can withstand large volumes of material while still removing deleterious material.

It is still important to perform routine maintenance on Log Washers to ensure they are at their highest operational capacity and to help prevent unnecessary downtime.

Choosing the Right Log Washer for Your Needs

There is not one size of Log Washer that will work for every single operation. In choosing the right size Log Washer for your operation, it’s important to consider factors like your material characteristics, your desired throughput, water availability and available site space.

Depending on the material you are processing, some Log Washer specs may be better than others. Consider the type of material you are processing, the type of contamination and percentage of deleterious material present. For example, a larger material size will require more water and horsepower (HP) to operate efficiently.

Different sizes of Log Washers provide different capacities. You’ll want to consider your tons per hour and throughput when deciding which Log Washer configuration is best for your operation. A higher throughput typically entails a larger size Log Washer.

Other factors like water availability and site space will determine what size Log Washer you should choose. If you have limited site space and limited water availability, consider a smaller size Log Washer for your application.

Common Applications for Log Washers

Log Washers can be used in both aggregate and mineral applications.

In aggregate processing, Log Washers are used to process and wash crushed stone and gravel. Specifications in the aggregate industry require clean material. Log Washers remove deleterious materials like dirt or clay, that are too tough to break up in Screw Washers or other equipment.

In mining operations, Log Washers are used to wash ores to remove clay and unwanted minerals called gangue. The corrugated paddles provide a tough, abrasive action that are ideal for removing difficult material. In mineral applications, Log Washers can be customized with different paddle types and sizes to best process different ores.

These heavy-duty machines can be used in a variety of applications but must be configured accordingly. Choosing the right fit for your application includes considering factors like what material you’re processing, your desired throughput, and site space and water availability.

Regardless of the application, Log Washers provide a robust solution for cleaning material while removing tough and stubborn contaminates.