SDM ECO / SLURRY DENSITY METER

Slurry density.
Without nuclear.

Measure mineral slurry density in real time with non-intrusive ultrasonic technology. Built for abrasive process conditions, high-density slurries and large pipes.

SDM ECO transmitter and touchscreen display

Non-nuclear

Ultrasonic measurement, without a radioactive source.

Real-time data

Continuous density insight for process control.

Abrasion-resistant

A sensor designed for demanding mineral slurries.

Flexible installation

Options for large and partially filled pipes.

THE SYSTEM

Reliable measurements.
Practical control.

The SDM ECO combines an ultrasonic sensor, transmitter and operator interface to provide accurate, reliable slurry density measurements for continuous process optimisation.

Use density data to understand changes in your slurry, support process decisions and replace nuclear measurement with a non-nuclear alternative.

The SDM ECO HMI control unit
SDM ECO Transmitter
SDM ECO Acoustic Impedance measuring principle explanation

SDM ECO system views. Use the arrows or swipe to explore the operator interface, transmitter and pipe integration.

Sensor

Abrasion-resistant materials and a robust design for demanding slurry conditions. Non-intrusive ultrasonic measurement leaves the flow path unobstructed.

Transmitter

Measurement electronics at the process, with connectivity to the operator interface and plant systems. Discuss the outputs and configuration your application needs.

7-inch touchscreen

Operate the system locally, from a laptop or through a connected server. Optional Wi-Fi offers another access route, subject to your site network configuration.

Upgrading from SDM-4?

SDM ECO brings improvements to accuracy, response time, operating temperature range and sensor design.

INDUSTRIES & APPLICATIONS

Where density makes a difference.

Explore how ultrasonic density measurement supports the processes that matter to your operation.

Dredging operation

Dredging

Measure dredging slurry inline and support production monitoring without a radioactive source.

Explore dredging
Tunneling operation

Tunneling

Monitor slurry solids concentration to support bentonite recovery in tunneling operations.

Explore tunneling

Mineral processing applications

PIPE INTEGRATION

A practical fit for your process.

Select the installation arrangement around your pipework, slurry and operating conditions. The SDM ECO is designed for straightforward installation, operation and maintenance.

Wafer installation

Wafer installation

The UWC is a 60 mm thick, synthetic flange-like ring made of UHPE. It fits between two pipe flanges, providing a compact mounting arrangement.

Spool-piece installation

Spool-piece installation

A pipe section installed between two flanges. Options include HDPE or steel, with an optional PU liner and other liners on request. Material selection depends on the application and abrasion conditions.

INSTALLATION & SUPPORT

Plan the right installation.

Share your pipe dimensions and slurry details. We can help you plan the right arrangement, including large or partially filled pipes.

IN PRACTICE

See it in real applications.

SDM ECO installation at a South African thickener underflow application

SOUTH AFRICA / FIELD COMPARISON

Thickener underflow.
A non-nuclear alternative.

At a chrome and PGM processing site, trial data showed comparable accuracy to the installed nucleonic meter, with a faster response to density changes.

Results from this installation; performance depends on the application and configuration.

Read the case study
Weir Minerals comparison test

COMPARISON TEST

Weir Minerals

A comparison test with three suppliers of density and flow meters.

CUSTOMER TESTIMONIALS

What our customers say.

Customer experiences with Rhosonics slurry density meters in mineral processing.

Agnico Eagle Meadowbank

“The instrument was easy to install and requires little maintenance according to the comments of the electrical crew.”

Mr. Eric MercierProduction Metallurgist
Agnico Eagle Meadowbank
Read full testimonial from Agnico Eagle Meadowbank

We used Rhosonics density meters since 18 months at our gold process plant located in the northern part of Canada.

The density meters are installed at 2 different locations in our regrind circuit.

The instrument was easy to install and requires little maintenance according to the comments of the electrical crew.

The results are reliable and the online data provide by them are very useful for the process operator to have stability in the circuit and recover the maximum ounces of gold at the end of the day.

OCP Khouribga
Beni Amir’s Washing Plant

“The operation and maintenance team at the BENI AMIR wash plant are satisfied with this technology.”

Mr. Mohammed el MouddenChief Instrumentation
OCP Khouribga – Beni Amir’s Washing Plant
Read full testimonial from OCP Khouribga

We confirm in this feedback a successful test of the second generation Non-Nuclear slurry density meters type SDM at the Beni Amir washing plant from April 2018 until now. With good cooperation between OCP, M2C, and Rhosonics. These SDM’s were installed in the following sectors:

  • One for washing
  • One for desliming
  • Two for the product thickeners

We operated well with this technology: A single calibration is sufficient for operation over three months. The operation and maintenance team at the BENI AMIR wash plant are satisfied with this technology.

OCP Group

“The SDM is much more efficient than other older generations, in terms of reliability, measurement fidelity and precision.”

Mr. Abdelhadi GuennaniMaintenance & Procurement Manager
OCP Group
Read full testimonial from OCP Group

The SDM is much more efficient than other older generations, in terms of reliability, measurement fidelity and precision. I recommend its added value in improving Production Chains.

These testimonials describe earlier Rhosonics SDM installations, rather than SDM ECO-specific installations.

PRODUCT RESOURCES

The details, ready to download.

Technical details

SDM ECO
datasheet

Check the technical specifications for your application.

Customer application

Grupo México
case study

Read the SDM ECO customer case study in PDF format.

Technical documentation

Find a manual or request additional documents.

LEARN MORE

Put density data to work.

Selected articles on SDM ECO technology and practical density control.

Grinding circuit

PROCESS CONTROL

Preventing mill overload and underload

How real-time density monitoring helps keep the grinding circuit in balance.

Read article
SDM ECO transmitter and operator interface

MEASUREMENT ACCURACY

Multi-point calibration

How multi-point calibration supports accurate, consistent measurements with the SDM ECO.

Read article
SDM ECO touchscreen

CONNECTED OPERATIONS

SDM ECO and Industry 4.0

Explore the role of connected density measurements in smarter mineral processing.

Read article
Flotation circuit

FLOTATION CONTROL

Real-time control in flotation

How instrumentation and process control support stable flotation conditions.

Read article
SDM ECO at Beens Dredging

CUSTOMER STORY

SDM ECO at Beens Dredging

A customer interview about using Rhosonics density meters in dredging operations.

Read story

Let’s discuss your application.

Tell us about your slurry, pipe dimensions and process conditions. We can help you assess suitability, installation options and the configuration you need.

sales@rhosonics.com+31 341 370 073