The ORTNER ®Sand Dewatering equipment

Washing and Fines Removal.
1/3 the water, 1/3 the power: The Ortner® is revolutionary in aggregate washing equipment for dewatering, removing fines, classifying and rinsing sand and other materials up to 3”.

Benefits of the Ortner®

Ortner® dewatering screen

The Ortner® Sand Classifier

Material is fed into a slowly revolving inclined pan and vibrated at high frequency. The high frequency quickly separates the various sizes of material, with fines and water rising to the top and discharging over the pan’s edge. The coarser material sinks to the bottom, where the settled particles are carried by the rotating pan up and out of the water. A stationary plow diverts the dewatered material to a central discharge spout.

The driving and vibrating mechanisms are mounted under the pan. This prevents contamination with the water and processed material, and increases the life of these components.

The Task for Sand Washing Equipment

The Ortner® uses much less water than other sand dewatering and classifying machines, and it consumes far less power, creating significant savings for the operator.

Advantages

Less Water

Less Power

Less Wear

High Capacity

Compact and Lightweight

Drier Product

Ortner® Selection
and Tests

The proper Ortner application and sizing must take into consideration:

  • The type of material
  • Feed gradations
  • Product specifications
  • Water in feed and availability
  • Tonnage required
  • Feed particle shape

AEI has testing plants to assure proper Ortner® selection and applications.

Please contact us to arrange a test of your material sample, whether you plan to use the equipment to wash sand or other fines from aggregate.

Applications for the Ortner® screen

Understanding the Ortner and Dewatering Machines

Ortner® Sand Classifier is a Very Diverse Machine

There are many ways to remove the fines from sand and crushed stone. Sand screw classifiers, classifying tanks, hydrocyclones, wet screens, log washers and jigs all have their place in sand washing operations, but none of them compare to the the Ortner® Washing...

Manufactured Sand: A Two-Pronged Approach – the Ortner®

Sand is a key component of many stone mixes, especially paving mixes like, asphalt and concrete. Paving mixes require a specific range of stone sizes, which is usually accomplished by screening to produce specific size fractions that are then blended together to meet...

Manufactured Sand: A Two-Pronged Approach – the BIVITEC®

In Part 1 of our discussion on manufactured sand (mansand) we talked about the Ortner® Sand Washer and its ability to remove unwanted fines from screenings while using very little water. But what if washing is not an option, due to: No water available Cost of washing...

Maintenance Tips for Fine Material Screw Washers

Processing sand and gravel products for a variety of specific market applications requires the use of different combinations of equipment. Fine material screw washers are a commonly deployed piece of sand classifier equipment. Below, we’ll outline several maintenance...

How Does A Sand Classifier Work?

Sand is an important construction aggregate used in the production of concrete mixes. However, before it can be used for concrete and cement production, sand must meet specific grain size and cleanliness requirements. As concrete mix specifications change, so too must...

Sand Dewatering: What It Is and Why Is It Important?

Aggregates — such as gravel, sand, or crushed stone — are among the world’s most important building materials. Roughly 60-75% of concrete is comprised of aggregates, and aggregates make up around 90% of paving asphalt. To create strong, stable construction materials,...

Meeting The Challenge of Sustainable Water Management In Aggregate Mining Operations

As the need to maintain water resources continues to grow, so do the challenges of sustainable water management in aggregate mining operations. Irregularity between mining operations causes contention in dewatering requirements, particularly in the aggregate washing...

Green Mining: Advancements in Eco-Friendly and Low-Impact Mining Practices

Traditional mining practices have often come at a significant environmental cost. As we face the challenges of climate change and sustainable resource management, the industry is adopting sustainable mining practices that incorporate eco-friendly and low-impact...

The Environmental Impact of Sand Washing

Sand is a fundamental resource in construction and manufacturing, playing a pivotal role in our infrastructure. But our sand consumption has tripled over the past two decades, reaching 50 billion tonnes a year. The extraction and processing of sand come with...

Advantages of Using Dewatering Screens in Mineral Processing

In mineral processing, efficiency and sustainability are crucial. Dewatering screens, which remove excess water from mineral slurry, significantly improve processing speed, reduce operational costs, and enhance product quality. Whether you're optimizing current...

Why Mine Dewatering is Essential for Efficient Mining Operations

Efficient mining operations rely on effective water management, making dewatering a critical component of the process. By controlling groundwater and surface water levels, mine dewatering ensures safer working conditions, protects valuable equipment, and maximizes...

Why Proper Sand Classification Matters in Construction and Manufacturing

Sand is a fundamental material in a wide range of industries, from construction and concrete production to glassmaking and foundries. However, not all sand is created equal. The size, shape, and purity of sand particles can significantly impact the quality and...

How the Ortner® Compares to Traditional Screw and Log Washers

Washing aggregate is a crucial step in many material processing operations, helping to remove clay, silt, and other unwanted debris from crushed stone, sand, and gravel. Clean, properly graded materials are essential for producing high-quality concrete, asphalt, and...

Why Washed Aggregates are Essential for Concrete and Asphalt Production

Aggregates are a foundational component in both concrete and asphalt production, making up the bulk of the mix and directly influencing the durability and overall performance of the final product. One key factor that differentiates high-performing aggregates is...

How Better Screens Save Money Over Time

When it’s time to invest in new industrial screening equipment, it’s tempting to focus on upfront costs. But the reality is that the cheapest screen isn’t always the most cost-effective when you consider the total cost of ownership. Over the lifespan of your...