+49 8321 6099-510 building-materials@bhs-sonthofen.com

Backfilling & overburden

Mixing technology for perfectly homogenous mixtures

Perfectly homogeneous backfill and landfill

When a mining deposit is exhausted, the cavities created can be filled with suspensions or slurries, among other things. Our mixing systems operating in continuous or batch mode have proven their worth many times over in this field. A high degree of mixture homogeneity in combination with a high degree of binder liberation ensures stability.

Benefits at a glance:

Economical and energy-efficient solutions
High degree of homogeneity in a short time
Continuous or batch operation
Robust system provides high operational reliability
Available in various sizes

Machines you can rely on

Whether you choose twin-shaft batch mixers (type DKX), single-shaft continuous mixers (type MFKG) or the Combimix system (type DKXC) – you can fully rely on your system creating extremely homogeneous mixtures. All systems work reliably and feature low operating costs as an added benefit. We are also the right partner when it comes to integrating machines into existing facilities with dosing and control technology. Our experts are happy to advise you on the selection of the appropriate solution.

Single-shaft continuous mixer (MFKG)

High-performance, maintenance-friendly solution for continuous mixing processes with finer grains

Learn more

Twin-shaft batch mixer (DKX)

Invented by BHS – proven, reliable and innovative – providing top mixing results for complex applications for over 130 years

Learn more

Combimix processes (DKXC)

The reliability of the twin-shaft batch mixer coupled with the advantages of continuous operation

Learn more

Horizontal mixer (HTC/HTK)

Optimal mixing quality with short mixing times

Learn more

Tests give certainty

Which mixer is the right one for your application? Don’t leave anything to chance. Leave it to our team of process consultants. Working together with you, our specialists will test the material and develop a tailor-made solution for you.

Learn more

Success stories

Two BHS mixers in Europe's largest precast concrete plant

May 2024

In Mikkeli, Finland, the largest precast concrete plant in Europe relies on the innovative mixers from BHS-Sonthofen to produce prestressed concrete elements for industrial buildings and commercial premises. Thanks to the outstanding performance of the BHS twin-shaft batch mixers, high-quality concrete products can be produced on a large scale.

Four large BHS mixers for a land-reclamation project in Hong Kong

April 2024

Hong Kong is in the midst of a housing crisis. The megacity is bursting at the seams, with the government always on the lookout for new properties. Many residents also depend on living near the city center, in close proximity to its towering financial headquarters. To address this problem, Hong Kong has been working to reclaim land from adjacent bay areas for many years. The TKO project in the east of the city is part of this effort. For this prestigious project, BHS-Sonthofen has supplied four large twin-shaft batch mixers of type DKX 5.00 for the production of concrete.

BHS planetary mixers for one of the leading concrete producers in France

March 2024

As one of the leading concrete manufacturer, the Belgian group CCB Cementir relies on the proven mixing technology from BHS-Sonthofen. Together with the plant manufacturer Creus Concrete Solution, CCB opted on a BHS planetary mixer, which forms the heart of the plant in France and produces all types of concrete.

Three prestigious projects with BHS twin-shaft batch mixers in Australia

March 2024

Two major operations are not enough to push the twin-shaft batch mixer from BHS-Sonthofen to its limits. Since their first use over 12 years ago, two BHS twin-shaft batch mixers of type DKX 6.00 have proved to be indispensable heart of some Australia's most significant construction projects. Three prestigious projects stand as living examples of the efficiency, reliability and outstanding performance of BHS mixers.

BHS mixer with 28,000 liter capacity for mine backfilling in India

February 2024

An exciting event has taken place in the world of mining: A gigantic BHS twin-shaft mixer of type DKXC with a filling capacity of 28,000 liters has been successfully integrated into a mine backfilling plant in India. The size of this mixer is not only impressive, but also makes it a real eye-catcher in the plant.

National Museum of China displays sample of RCC mixed with BHS technology

February 2024

It is the largest sample of Roller-Compacted Concrete (RCC) in the world! And it is the result of a big project. The Dagu Hydro Dam is located 3,700 meters above sea level, making it the most elevated site ever for employing BHS twin-shaft batch mixers. A core sample of the dam was extracted in 2021. Due of its size and excellent quality, the National Museum of China chose to include it in its collection for public display in 2023.

Ten BHS mixers for China's high-profile Pinglu Canal project

January 2024

China is a country of superlatives, not least in terms of population: With more than a billion people and huge agricultural areas, securing a continuous supply of water for the nation has become paramount. Reservoirs and dams help store water and regulate its distribution, especially in times of drought or water rationing. Over the past few decades, China has therefore embarked on a series of major construction projects. One of the currently most important projects is the Pinglu Canal Project, for which BHS-Sonthofen has supplied eight large BHS twin-shaft batch mixers of type DKX 7.00 and two additional DKX 4.00.

Express solution for mixing plant at Cemex Matériaux Ile-de-France

October 2023

What to do when time has taken its toll on a proven mixer, and a replacement is needed quickly? Cemex, an international manufacturer of building materials, needed a new BHS twin-shaft batch mixer for its plant in the Paris region at short notice. Thanks to high machine availability and precise construction plans, BHS-Sonthofen provided on-the-spot delivery and ensured the seamless integration of the new mixer into the concrete plant in record time.

BHS test center: Successful testing of building materials

January 2023

„Just do it“ occasionally proves to be an extremely efficient strategy. Especially when it comes to finding out more about the processing of various raw materials for building applications. BHS-Sonthofen offers an ideal environment with its test center, which opened in 2019. Upon customer request, the company conducts intensive field tests with various materials – with great success.

BHS mixing technology for prestressed spun piles in Vietnam

December 2022

The demand for higher construction quality, especially centrifugal concrete, challenge Vietnamese companies to use new technologies. Minh Duc Concrete and Construction Co., Ltd is one of the leading companies in the field of production, supply and construction of spun concrete piles in the Vietnamese market and relies on the proven BHS technology in many projects.

BHS crushing technology for Algeria's growing building materials market

November 2022

The city of Constantine is at the heart of Algeria's booming economy. Across the country, infrastructure construction is experiencing an enormous upswing – which in turn requires a high availability of building materials. Batinol Construction s.a.r.l., which is based in Constantine, produces limestone sand for cement and concrete applications. Since January 2022, the company relies on a rotor centrifugal crusher of type RSMX 1222 from BHS-Sonthofen for processing the delicate raw material.

BHS mixers in use at the ambitious "Pier 55" project in New York

July 2022

At the former Pier 55 along the Hudson River in New York, a bed of concrete tulips now rises out of the water: 132 of these precast tulip elements, mounted on 267 prestressed concrete piles, form a 2.4-ha artificial island and are the new eye-catcher of the waterfront. For the ambitious project, precast producer and supplier of the concrete flowers Fort Miller Co., Inc. used the proven mixing technology of BHS-Sonthofen – two BHS twin-shaft batch mixers of type DKXS 3,00 ensured concrete of the highest quality.