Günther Weissenberger succeeds company founder Gerald Hanisch as CEO

Gerald Hanisch is withdrawing from the operational business of the RM Group and focusing on his role as owner. Mr Hanisch is and will remain “Mr Rubble Master” and will continue to represent the RM Group and, as founder, be the face to the outside world. Günther Weissenberger will take his place as CEO with immediate effect. Rudolf Schöflinger will take on the role of CSO, and Bernhard Fischereder will join as CTO on 1 June, rounding off the management team.
“RUBBLE MASTER has a very capable and committed management team with Günther Weissenberger at the helm, who know how to derive concrete steps from visions and successfully put them into practice,” says founder and owner Gerald Hanisch with conviction.
Five-member management team consolidates pioneering role
Günther Weissenberger, CFO for many years, is taking over the role of CEO with immediate effect. Rudolf Schöflinger, who has been with RUBBLE MASTER for over 20 years, takes over as CSO. From 1 June, Bernhard Fischereder will join the management team as CTO. He will take over the management together with Günther Weissenberger & Rudolf Schöflinger on 1 January 2025. The two authorised signatories Julia Aschenwald, Head of Administration, and Patrick Wolkerstorfer, Head of Operations Management, round off the five-member management team.
“The entire RM family would like to thank company founder Gerald Hanisch. His entrepreneurial passion and pioneering spirit have made the company what it is today. We wish him all the best for a well-deserved, quieter time,” concludes Weissenberger.

Günther Weissenberger als neuer CEO
Günther Weissenberger als neuer CEO

From February 28 to March 1, 2024, the Product Champions Meeting Latam took place in Playa del Carmen, Mexico. The meeting was a great success and provided an excellent opportunity for our dealers from various Latin American countries to network and learn about the latest developments in our products. The program covered a wide range of topics, including the latest product information, insights into the RM Virtual World & Digital Solutions, global market developments with a focus on LATAM, news from the RM Academy and current applications in the region. Particularly exciting was the discussion on the current situation in Latin America, which provided valuable insights into the challenges and opportunities facing the industry.

The on-site demo allowed our participants to get an idea of our products using a Maya Train construction project. The limestone used as a material illustrated the versatility of our machines and their performance in different areas of application. In addition to the technical exchange, the social aspect was not neglected. The group team-building activity strengthened cohesion and promoted networking between the representatives from Uruguay, Mexico, Argentina, Peru, Colombia, Brazil, Ecuador, Central America & the Caribbean and Paraguay.



We would like to thank all participants for their active participation and look forward to incorporating the knowledge gained into our future work.

Advanced recycling application in Argentina

Crushed slag & concrete are 100 % recycled

Pioneering application in Argentina: For 4 years now, the customer of RM dealer COVEMA S.A.C.I.F. has been crushing concrete and slag with the RM 100GO! crusher in a highly efficient and environmentally friendly manner.


Country: Argentinia
Machine: RM 100GO! + RM MS105GO!
Material: Concrete & Slag
Feed material: 0–500 mm
Final aggregate: 0-30 mm

With a throughput capacity of 150 t/h, the RM 100GO! crushes concrete and steel slag from 0-500 mm to 0-30 mm directly on site for eight hours a day. The customer, an expert in the use and integration of recycled materials in road construction in Argentina, crushes concrete in order to reuse it for the production of new concrete. In addition, slag is crushed for road construction and recycled for the production of new steel. In this way, thanks to the impact crusher, all the material can be recycled one hundred percent.

Crusher scores with versatility and sustainability

The RM crusher was ordered and put into operation over four years ago. It was particularly important to the customer to acquire a crusher that is suitable for a wide range of applications. The RM 100GO! can undoubtedly fulfill this requirement. The impact crusher not only enables the crushing of concrete from the demolition of old, rigid pavements, but also the recycling of other regionally available materials such as slag. The outstanding quality of the machine and the favorable financing conditions offered by RM dealer COVEMA ultimately convinced the customer to purchase the crusher.

Kunde Covema aus Argentinien mit RM 100GO!


“Thanks to the extreme versatility that the RM 100GO! crusher offers in recycling locally available materials, we are able to achieve the highest level of environmental commitment on the Argentinian road market,” confirms the customer.


Kunde Covema aus Argentinien mit RM 100GO!

What to consider when crushing slag

Slag is created during the production of steel and consists of mineral components and other elements that are removed from the metal ore during the melting process. Slag also usually contains iron, which can cause damage in the crushing chamber if the wrong crusher is selected. The advantage with the RM 100GO! crusher is the RM Release System (impactor opening to remove blockages in the impactor), which opens if pieces of iron are present in the material being crushed, thus preventing damage in the crushing chamber. Nevertheless, large pieces should still be sorted out or pre-crushed before feeding, as iron parts that are too big can cause damage to the crusher despite the Release System.

First own crusher instead of subcontracting

Impact crusher with wind si􀅌er ensures high-quality final aggregate in the south of France

Processing recycling material independently, flexibly and regardless of the location whilst obtaining high-quality final aggregate as a result. This was the requirement of a French customer of RM sales partner I.M.H. With the RM 90GO! crusher, including wind sifter, acquired for the first time in February, this is now a reality.


Country: France
Machine: RM 90GO! + wind sifter + RM MS95GO!
Material: Concrete & construction waste
Feed material: 0-500 mm
Final aggregate size: 0-20 mm

Amourdedieu TP, based in Ansouis, north of Marseille, is with over 80 employees one of the leading companies for public works, landscaping and recycling mineral waste in the south of France. For various temporary construction sites, the company needed a mobile crusher that could crush recycling material such as concrete and construction and demolition waste on site and process it into high-quality final aggregate in the desired sizes. Previously, this task was always outsourced to external service providers, but now, thanks to the RM 90GO! crusher, the customer can handle this task flexibly and independently of the location.

With a throughput capacity of 110 tonnes per hour, the RUBBLE MASTER impact crusher can process the 0-500 mm feed material into 0-30 mm and 30-80 mm pure final grain. The finer end material is recycled for use as a base for building structures or platforms, while the coarser end product, specifically the 30-80 mm grain, is used for the back of walls to aid the drainage of buildings. The wind sifter, which is integrated into the crusher, plays a crucial role in separating impurities from recycled building materials, thereby ensuring the production of a high-quality end product.


Kunde IMH aus Frankreich mit RM 90GO!

We are very satisfied with the final grain size produced by the impact crusher. Thanks to its efficiency, the wind sifter in particular is very helpful in separating impurities from the 30-80 mm material,” says Ollier Julien, Managing Director of Amourdedieu TP.


Get more information about the wind sifter here

Manoeuvrable, mobile, easy to commission and environmentally friendly. These criteria were decisive for the recycling centre operator Solid Waste Recycling Company P.C. from Larisa, Greece, when purchasing their crusher for the first time from the Greek RM sales partner Helma SA. The RM 70GO! 2.0 was just what they needed.


Country: Greece
Machine: RM 70GO! 2.0
Material: C&D waste
Infeed size: 400 mm
Final aggregate size: 0-35 mm
RM 70GO! 2.0 in Griechenland mit Kunde

The RM impact crusher has now been crushing around 70 tonnes per hour of construction waste and occasionally asphalt for over six months and processing it into 0-35 mm high-quality final aggregate for resale. And this despite never having worked with a crusher before. The simple handling and commissioning of the RM crusher enables even inexperienced operators to get started immediately. Thanks to the RM GO! principle, which stands for simplicity and efficiency, the crusher can be put into operation within minutes and can be used flexibly for a wide variety of materials as well as for a change of location.

Compactness & Mobility an advantage

In the small recycling yard, manoeuvring and special reversing manoeuvres are difficult or even impossible with large machines. This is where the RM 70GO! 2.0 can fully utilise its advantages. Weighing just 19 tonnes, the RM 70GO! 2.0 is one of the lightest crushers on the market. Thanks to its compact size, it convinces with outstanding manoeuvrability, even when space is limited, and also impresses with its enormous throughput capacity.

Emission levels as low as possible

In Greece, all construction machines must carry special yellow licence plates to be immediately recognisable as complying with the government’s environmental regulations. This is no problem for the RM 70GO! 2.0, because with its extremely low diesel consumption whilst delivering high throughput, it is one of the most sustainable impact crushers in its class.

Over 9000 tonnes of material with a feed size of up to 400 mm have been crushed to date. But that’s not all: due to the high level of satisfaction of the Greek customer, further areas of application for the mobile impact crusher are already being considered.

In recent years, virtual 3D worlds have emerged as a new form of digital presentation. During the pandemic, they were increasingly used to offer customers at least a virtual trade fair tour after trade fairs were canceled worldwide. These new 3D worlds will develop rapidly and presumably replace websites in the future, as they offer new possibilities for presentation and collaboration.

For this reason, the RM Group has been working intensively since last September on the development of a virtual RM world in which we can present our products and innovations in digital form. In addition to the website and the RM Cockpit, the virtual world is set to become another valuable digital tool for customers, dealers and potential employees. Visitors will be able to navigate virtually through a realistic environment and view our products from different perspectives.

In future, users will be able to explore the machines in impressive detail. They will be able to view the various components from any angle and better understand the functionalities of our products. This will give them an interactive experience that will help them find the right solution for their requirements.

Visit our virtual world and get a first impression of the possibilities that already exist.

Virtuelle Welt Maps
Virtuelle Welt Welcome

RM customer Welbers in Wemb, North Rhine-Westphalia, crushes up to 110 tonnes of gravel per hour with their RM 100GO! hybrid, fully electric, connected to the grid. The results speak for themselves because fully electric drive reduces energy costs by around 50%, the total operating costs by 11% per year, and it also protects the environment. The family-owned business also benefits from maximum flexibility. Thanks to the hybrid crusher, they can crush other materials, such as C&D waste, in addition to fully electric gravel processing.


Country: Germany
Machine: RM 100GO! hybrid
Material: Gravel & C&D waste
Feed material: Gravel: 16-x, 32-x, C&D waste: 0-650
Final aggregate size: 0-16mm gravel, 0-45mm C&D waste

Welbers in Germany have been operating a sand and gravel plant for generations. In July 2023, they purchased their first crusher, an RM 100GO! hybrid, to process gravel to the highest quality 0-16 fraction final aggregate. The reason is that the cone crushers they used to hire cannot achieve the quality of results achieved by impact crushers. “With the new RM 100GO! hybrid, we get a much better geometry of aggregate compared to the cone crushers we used to use. Asphalt adheres better and decorative chippings look better; essential criteria for our customers, who range from landscape gardeners and building contractors to private consumers,” says Jonathan Schaffers, Managing Director of Welbers Kieswerke GmbH.

Impressive trials on the company’s premises

Although the German company was initially sceptical about the performance of the RM crusher, a test run in May dispelled their concerns. The long-standing RM dealer Christophel, a competent partner and supplier of mobile processing technology with plenty of experience in gravel plants, organised a test run directly on the customer’s site to demonstrate how the RM 100GO! processes 16-40 mm gravel and oversize feed material of 32-130 mm to produce the highest quality 0-16 mm final aggregate. In addition to processing gravel, Welbers also tested the machine briefly with C&D waste. Indeed, the machine confirmed what many satisfied RM machine owners from the surroundings have already discovered: a finished 0-45 mm final aggregate, as well as a screened oversize aggregate at a high output with good operating costs. The impressive results convinced the customer, and they ordered their RM 100GO! hybrid at the end of May.

Protect the environment and save on fuel costs with hybrid drive

The aim of leaving land in better condition from an ecologically standpoint than it was before excavation started, has always been the philosophy of the Welbers’ family business. That is why they decided to go for the hybrid version of the RM crusher, in addition to capitalising on the grid connection they already had on site. Now nothing stands in the way of emission-free, fully electric operation. An attractive side advantage is the saving on running costs: already high fuel costs are reduced by using electricity. Since taking delivery of the new machine in June, it has already saved EUR 1000 on diesel.


Fully electric crushing: easy and uncomplicated

Previously, hardly anybody processed gravel fully electrically using mobile crushers. If you have an existing connection to the grid, however, this is easier than you might have thought. To power the crusher, Schaffers first connects the 15-metre cable to the grid transformer station and then to the crusher. This simple step sees the machine ready for action in just a few minutes. “We are very satisfied with the crusher because it really delivers the performance it promises in electric mode and does an excellent job of processing gravel,” says Schaffers.

Maximum flexibility & mobility

In addition to cost efficiency and reducing emissions, Schaffers appreciates the additional advantages in terms of the flexibility and mobility of the hybrid crusher. Because the crusher is mounted on a chassis with crawler gear, they can move from processing gravel in electric mode to crushing 0-45 fraction C&D waste directly on site in diesel mode. In contrast to the processing of C&D waste being outsourced, as it was previously, this can now be done flexibly and independently at any location. This level of mobility paired with low-emission drive technology is something that the owner really appreciates. Particularly with regard to the new substitute building materials directive, which took effect in Germany at the beginning of August 2023, because now the company’s major advantage is that they no longer have to constantly obtain proof of suitability from external service providers, but can do that themselves.

They have processed several thousand tonnes of gravel since July, and all without fuel. The company plans to follow a processing schedule, whereby every couple of months C&D waste will be crushed for two to three weeks. The rest of the time they will process gravel in fully electric mode. They will therefore crush around 40,000 tonnes of gravel a year using power from the grid. “The RM 100GO! hybrid is ideal for handling both process applications: C&D waste and natural stone. I am delighted we have found Welbers the perfect solution, which is both cost-efficient and environmentally friendly,” says Christian Knepperges, Sales Manager at C. Christophel GmbH.

With an export quota of 96 percent, the Linz-based machine manufacturer is a model company from the region. With this in mind, 21 delegates from the Chamber of Commerce paid a visit to RUBBLE MASTER last Friday. Among them were Mariana Kühnel, M.A., Deputy Secretary General, Michael Otter, Head of AUSSENWIRTSCHAFT AUSTRIA, Florian Zeppetzauer, Head of Export Center Upper Austria and Dr Elisabeth Czachay, Project Manager Export Center Upper Austria. During a tour of the company premises, the WKO delegates were able to see the open corporate culture, the innovative technology and the RM spirit for themselves.

RUBBLE MASTER’s success is based, among other things, on the close cooperation between the departments, which is also reflected in the spatial design of the company, as the production hall and the offices are only separated by glass walls. “This openness not only promotes communication between the teams, but also creates an atmosphere of collaboration and innovation. And these factors are crucial to our success on the global market. The export ratio of 96 per cent underlines our competitiveness and also our strategic orientation. North and South America and South East Asia in particular are important growth markets for us, which we are focussing on,” says Gerald Hanisch, founder and CEO of the RM Group.

Back in June, the crusher and screen manufacturer was honoured with the silver export award in the trade and crafts category. The Upper Austrian company exports its mobile crushers and screens for recycling building materials to over 110 countries around the world. “The reception by the Chamber of Commerce and the award of the Export Prize are confirmation of our efforts and success on the global market. Our focus on innovative mobile crushers and screens for recycling building materials has not only made us a flagship for Upper Austria, but also a reliable partner worldwide,” concludes CFO Günther Weissenberger.


  • Country: United Arab Emirates
  • Machine: RM 90GO! + RM HS5000M
  • Material: Concrete
  • Feed material: Up to 20 inch
  • End grain size: Smaller than 2 inches
  • Use of end material: Road construction throughout the city


Masdar City is an urban development project in Abu Dhabi that is considered a pioneer for sustainability and green energy. Renowned companies and institutes worldwide are involved in the design and construction, including RUBBLE MASTER. Masdar City is a leader in construction waste recycling and will be in the spotlight during the next UN Climate Change Conference COP28.

Masdar City Services decided to purchase RUBBLE MASTER machines back in 2008 and later invested again in the RM 90GO! compact impact crusher and the RM HS5000M coarse screening plant. The relationship between dealer, customer and RM Group played a decisive role.

Beton aufbereiten mit RM 90GO! + RM HS5000M

The company appreciates the flexibility and speed of RUBBLE MASTER’s mobile solutions. The plants are mainly used for crushing and screening concrete used for roads and paths within the city. The mobility and low-emission drive technology of the machines are particularly important in Masdar City’s compact, shady construction to minimise noise and dust generation.

Saudi Arabia and the futuristic NEOM mega-project also offer great potential for mobile recycling of construction and demolition waste. RUBBLE MASTER has been active in Saudi Arabia since 2012 and has already been involved in numerous prestigious projects. NEOM, consisting of four regions, will be a CO2-neutral city where cars are banned and everything is within a maximum of 5 minutes walking distance. RUBBLE MASTER is working on this project with eight mobile impact crushers to make the excavated material usable for road construction.

In Saudi Arabia and Masdar City, the need for mobile recycling is increasing due to large construction projects. RUBBLE MASTER is well positioned to meet this need.