Demolition plays a crucial role in dam maintenance by facilitating the repair, renovation, or removal of structures to ensure the dam’s integrity, safety and functionality. Years of applied demolition research has enabled Jet Demolition to offer an integrated approach to dam rehabilitation. Over time, dams can develop structural issues such as cracks, weakened spillways or compromised foundations. Demolition of damaged sections allows for the safe removal of deteriorated materials, making way for repairs or replacements. For example, partial demolition of a spillway may be necessary to replace it with more durable materials or to upgrade its capacity. Dams built decades ago may not meet current safety standards or operational requirements. Demolition of outdated components such as control gates, overflow structures or auxiliary buildings is often necessary to modernise the dam. This process enables the installation of new technologies such as automated control systems or enhanced flood control measures. Hybrid solutions are developed to suit specific, on-site conditions while protecting the structural integrity of the remaining concrete. Rehabilitation of dam walls usually requires demolition of redundant portions of monolithic blocks. “Judicious selection of demolition methods and their application techniques are vital to a controlled and productive project,” comments Kate Bester, Contracts and Project Manager at Jet Demolition. In certain instances, explosive demolition may be possible and appropriate. Various drilling and coring methods are then applied to generate blast holes of pre-determined depths, diameters, and alignments, in strict accordance with our in-house blast-design, where the nature of the works to be undertaken warrants controlled blasting of spillways and structural elements. Detonation causes both shock wave and gas penetration energy transfer to concrete structures. Therefore, it is critical to ensure physical separation of the …
Latest Additions to the Most Advanced Demolition Equipment Fleet in Africa
Leading specialist Jet Demolition is the first demolition contractor in Africa to implement the OilQuick automatic quick coupler system for its fleet. It allows hydraulic work tools to be connected and disconnected effortlessly from the driver’s cab. In addition, the operator can change seamlessly between various work tools within seconds, from a hydraulic hammer to steel or concrete shears, sorting grapple, hydraulic magnet, bucket or even a machine-mounted crusher. Bradley Slooten, who has a BSc (Hons) in Construction Management, is Equipment Asset Manager at Jet Demolition and dealt directly with the OilQuick factory in Sweden. “They were very surprised to hear that a demolition contractor in South Africa has the fleet capacity to adopt their system.” While there are various quick coupler systems available locally, this is a first for the South African industry in terms of automation. A factor that influences any successful demolition job is the versatility of the equipment on-site, explains Bradley. Generally, an excavator on a civils or earthmoving site has a specific attachment, either a hydraulic hammer or bucket, for its entire lifespan. However, a demolition site often sees a machine carry multiple attachments within a working day. The time it takes to change an attachment with a conventional pin system generally is two to three hours. Jet Demolition discarded this outdated technology about 15 years ago, developing its own in-house mechanical coupler system that reduced the time to change attachments to about 45 minutes. However, with demolition projects becoming increasingly fast-track and cost-driven, Bradley embarked on the next step to improve fleet efficiency. Developed and manufactured in Sweden, the OilQuick fully automated hydraulic coupler system allows the operator to change between various demolition attachments in a matter of seconds. The system makes use of the excavator’s own hydraulic system, which moves the lock pins to couple …
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Overnight Bridge Demolition Highlights Impressive Precision and Planning
In an impressive feat of precision and planning, Jet Demolition recently carried out the overnight controlled demolition of the Rockdale Road Bridge, a vital step in the N3 highway and EB Cloete Interchange upgrade. The bridge demolition forms part of a critical large-scale project, undertaken by SANRAL. Running from August 2024 to July 2025, it includes construction of a new bridge designed to accommodate additional lanes on the expanded N3, a key transport artery. The upgraded highway will significantly improve traffic flow and safety for commuters. “The biggest challenge we face with rapid overnight bridge demolitions is the tight timeframes imposed by road closures and the planning demands and project costs associated with them,” highlights Johann Weinmann, Structural Engineer & Project Manager at Jet Demolition. In the case of the N2 and N3 highway upgrade projects in KwaZulu-Natal, most bridge demolitions are completed under total motorway closures, typically between from 18:00 on a Saturday and 05:00 on Monday. “Beyond the extensive hourly lane penalty, you can only imagine the chaos and economic losses that would arise if the N3 highway between Pietermaritzburg and Durban was only reopened late on Monday evening instead of early in the morning as scheduled,” notes Weinmann. During these projects, the requirement to reopen highways promptly is non-negotiable for Jet Demolition. The company employs exhaustive planning and operational strategies to meet these critical deadlines. “From developing multiple demolition methodologies to having double execution teams and backup mechanics on standby, we leave no stone unturned. This meticulous approach is part of our commitment to risk elimination, ensuring that primary traffic arteries like the N3 are reopened on time, avoiding costly disruptions to the economy,” says Weinmann. Jet Demolition’s comprehensive service model, which includes specialised cranage and rigging subcontractors, is essential to …
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FUCHS LUBRICANTS Sails Strong Into 2025 Despite Economic Headwinds
The successful completion of its major investment programme has positioned FUCHS LUBRICANTS SOUTH AFRICA well for 2025 and “has significantly increased our growth potential,” comments MD Paul Deppe. The project saw a significant upgrade of FUCHS’ production facilities. “We have completed an expansion to our lubricants plant that increases our capacity by 40%,” reveals Deppe. It includes a new tank farm with modern blending facilities, a high degree of automation, and new filling equipment. “It enables us to meet customer demand more efficiently,” says Deppe. The company has also implemented a Sales and Operations Planning process to improve inventory management and delivery performance. “We have already seen tangible benefits in our delivery metrics. In addition, we have secured large tenders with two major automotive OEMs, which reinforces customer confidence in our capabilities.” FUCHS continues to pursue opportunities in Africa, targeting sectors like mining, agriculture, construction, and automotive. Despite the economic headwinds, Africa offers significant growth potential, especially in commodities like copper, uranium, and other important minerals. In terms of new products or trends driving this growth and the well-rounded strategy behind it, Sales Director Andrew Cowling says FUCHS’ focus is on expanding its calcium-sulphonate range of grease and introducing new products, such as an OEM-approved 0w20 oil. Sustainability is also a key driver, with efforts to incorporate more recycled materials and energy-efficient solutions into the entire product range. “Sustainability is integral to our operations, as reflected in our commitment to achieving net-zero emissions by 2040. We have already taken significant steps, including a new power purchase agreement for solar energy at our Isando head office to reduce reliance on traditional energy sources,” points out Deppe. “Sustainability is not just a buzzword for us; it is a business …
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Regular Maintenance of Cutting Fluids Is Essential to Maintain Quality
Regular cleaning and maintenance of cutting fluid systems significantly enhances overall efficiency by extending the life of the cutting fluids, reducing downtime, and improving the quality of the end products. “Regular maintenance is key to optimal performance. Our clients typically undertake thorough machine cleanings around shut down periods to prevent unpleasant odours from bacterial growth in stagnant soluble oil,” explains Ashleigh Pollen, Industrial & Specialty Manager at FUCHS LUBRICANTS SOUTH AFRICA The main functions of a cutting fluid include lubrication, cooling, chip removal, corrosion prevention, cutting performance and enhancement of surface finish. Water-miscible soluble cutting fluids are emulsions or solutions created by mixing the product with water, at concentrations based on the intended application. These provide excellent cooling due to their high-water content. They are typically used in high-speed machining where cooling is critical, but require regular monitoring to prevent bacterial growth, and have more complex disposal needs. In contrast, non-water-soluble (neat) cutting fluids are pure oils made from mineral, synthetic, or vegetable oils, offering superior lubrication, but less effective cooling. These are used in low-speed machining or with difficult-to-machine materials requiring high lubrication. They are easier to maintain and dispose of, with less bacterial growth. Over time, oil can deteriorate and lose its ability to lubricate effectively, resulting in increased wear and the potential for damage. “It is crucial to conduct regular maintenance and timely replacement of soluble oils to ensure that the machining process remains efficient, safe, and cost-effective,” stresses Pollen. This practice helps prevent contamination, as soluble oil can accumulate dirt, metal particles, and other impurities. Regular oil changes assist in managing these contaminants, thereby averting damage and maintaining machinery …
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Strategic Upgrades Advance World-Class Manufacturing Excellence at Bühler Johannesburg
This year was pivotal for Bühler Johannesburg due to significant upgrades at its manufacturing facility to enhance efficiency, safety, and the overall working environment. These initiatives, aligned with Bühler’s global commitment to excellence, highlight the facility’s dedication to world-class standards. “Our focus this year has been on creating a safer, more efficient, and supportive workspace that not only meets but exceeds global benchmarks,” says Francois Knoetze, Head of Manufacturing & Logistics of Bühler Southern Africa. “These improvements reflect our commitment to innovation, sustainability, and the well-being of our team.” One of the most notable transformations has been in the roll area, where strategic restructuring has delivered a remarkable 40% efficiency boost compared to last year. This improvement, supported by a positive coverage difference, underscores the effectiveness of the upgrades. A recent addition to the team has further bolstered operations, bringing fresh expertise to sustain this upward trajectory. Safety enhancements remain a cornerstone of Bühler’s operational philosophy. A newly installed safety fence around the roll fluting and grinding area not only ensures the safety of employees but also streamlines workflow control within the facility. “Protecting our people is paramount,” stresses Francois. “This investment demonstrates our unwavering focus on safety as a non-negotiable priority.” Bühler Johannesburg has made significant strides in enhancing operational efficiency and precision through the acquisition of new equipment. A state-of-the-art die refurbishment machine has been introduced to improve the precision of critical processes and extend the lifecycle of essential components. In addition, a modern chain welding rig, capable of welding seven chains simultaneously, has increased productivity by an impressive 30% to 40%. To streamline workflows further, the facility now features a dedicated assembly crane, …
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Bühler Western Cape Hosts Customer Day to Celebrate Expansion, Innovation, and Sustainability
The location in Cape Town has brought Bühler’s services closer to its coastal clients, enhancing response times and reducing the need for customers to rely on support from Johannesburg or even Bühler’s headquarters in Switzerland. “Our customers have expressed immense appreciation for the improved efficiency and reduced costs,” notes David Austin, Bühler’s Western Cape Customer Relations Manager. “This expansion demonstrates Bühler’s ongoing commitment to providing localised support that meets the unique needs of our South African customers.” This year’s Customer Day provides an interactive setting for Bühler to introduce customers to its latest technology advancements. Among these innovations is the TVM (Temperature Vibration Monitoring) for roller mills, which Bühler is set to launch to improve equipment monitoring. The new technology, designed to reduce unplanned downtime, promises increased productivity for Bühler’s clients in the milling and food processing sectors. “We have already introduced this technology to some of our larger customers, and we are excited to provide additional exposure and share its benefits with more customers,” says Marc Barris, Technical Advisor, Bühler Southern Africa. In addition, Bühler Cape Town recently achieved ISO 9001 certification, underscoring the rigorous quality standards across its facilities. Marc highlights the significance of this certification: “Standardising service across all our locations is crucial, and achieving this certification reinforces the quality that our customers can expect, no matter where they are.” Bühler’s global sustainability objectives include developing a pathway to achieve a 60% reduction of greenhouse gas emissions in its own operations by 2030. It is committed to having solutions ready to multiply by 2025 that reduce energy, waste and water by 50% in the value chains of its customers. It proactively collaborates with suppliers to reduce climate impacts throughout the value …
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ABB Highlights Women’s Expertise in STEM Fields
STEM Day 2024 on 8 November was a powerful reminder of the role that Science, Technology, Engineering, and Mathematics (STEM) education plays in driving global innovation, community empowerment, and sustainable development. It underscores the importance of harnessing STEM skills to address complex challenges, from climate change to sustainable energy solutions, while creating pathways for future generations to contribute meaningfully to society. Female engineers and scientists at ABB contribute significantly to R&D projects, developing new technologies and solutions. Their expertise in various technical fields helps ABB stay at the forefront of innovation in sectors like electrification, robotics, and automation. The company showcases women’s expertise in STEM fields across its operations through a variety of initiatives and practices. These efforts not only highlight the contributions of women but also promote a more inclusive and diverse work environment. ABB supports and promotes internal networks and programmes specifically designed for women in engineering and technical roles, aligning with the broader goals of STEM Day. These initiatives provide mentorship, career development opportunities, and networking for female employees, empowering them to thrive in their careers and break new ground in traditionally male-dominated fields. The company also offers targeted training and development programs, including leadership training and technical skill enhancement, aimed at advancing women’s careers in STEM fields and fostering a culture of innovation. Recognising the importance of early STEM exposure, ABB engages in partnerships with educational institutions to promote STEM education among young women. This includes sponsoring scholarships, internships, and educational programs that encourage female students to pursue STEM careers, helping to close the gender gap in technology and engineering. In addition, ABB participates in and organises events that …
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Major Milestones for ABB Electrification in 2024
The Electrification Products division of ABB achieved numerous milestones across different business areas in 2024, reports Graham Abrahams, Senior Vice President. A highlight was securing the first OneFit order manufactured locally at ABB South Africa, which was successfully installed at a customer site. ABB’s OneFit is a retrofit solution designed for medium voltage switchgear. It features a hard-bus ret-rofill design concept that allows for the easy connection of new circuit breakers to a wide range of ex-isting panels, regardless of their age, design, or brand. “The Service business performed exceptionally well, marking a standout year in terms of growth and customer engagement. The Products business maintained strong momentum throughout the year, demonstrating its robustness and reliability,” said Abrahams. The Projects business expanded into new segments and carried out its projects effectively, showcas-ing its capability to innovate and adapt to market demands. Electrification also reached Gate 5 in the CSS/LVS technology transfer, enabling local manufacturing. “This is a significant step towards enhanc-ing our regional production capabilities,” added Abrahams. The year ended on a high note, with news of ABB’s ‘Engineered to Outrun’ rebranding. “It reflects our commitment to innovation, efficiency, and sustainability, and will be prominently rolled out within the Electrification division. Both our medium-voltage and low-voltage businesses are emphasising digitali-sation, which aligns with our goals for reducing the carbon footprint,” explained Abrahams. ABB’s ‘Engineered to Outrun’ rebranding is not about changing how it positions itself, but rather clari-fying its identity as a solutions provider. In Africa and locally, this refreshed message helps address any confusion customers might have about ABB’s role, stressing its commitment to delivering efficient, high-performance solutions. By clearly showcasing its engineering expertise and focus on …
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Farmtrac Vryheid scores a hit with the MF Global series in the forestry sector in Northern KZN
When a local forestry client wanted a real workhorse to mulch leftover branches once trees had been harvested, it acquired a MF 6711 tractor from Farmtrac Vryheid – and has not looked back since. That same tractor has operated flawlessly for over 2 000 hours since 2020 and is a flagship for the durability and versatility of the Global series, says Paul de Klerk, Whole Goods Salesperson at Farmtrac Vryheid. “The tractor has presented no problems at all, just the normal basic maintenance service intervals. There have been no major breakdowns or issues at all.” Since then, RF Gevers has acquired an MF 6712, with the dealership recently selling another MF 6712 to Kamagri and an MF 6713 to Schwartzwald Forestry. The machines sold to RF Gevers have a factory-fitted creeper gear. It is activated by either a lever (on the MF 4700) or a rocker switch (MF5700/MF6700), providing an additional two ranges to the transmission. It allows the tractor to travel at a speed as low as 100 m/h up to 2.5 kph, which allows the operator to choose the ideal mulching rate. Due to the arduous operating conditions in the forestry sector, these tractors are fitted with customised belly plates for added protection. “We have a local metalworker in our area that does the modification and instalment of the belly plates according to our specifications, which makes it easier for our technicians to service the tractors and carry out required maintenance,” says Paul. Another feature of the tractor is the wet clutch system, which makes it operator friendly and reduces wear-and-tear on the clutch itself. The power shuttle is reliable and easy to operate and can change direction on the move. All these features increase productivity and allow Farmtrac Vryheid’s clients to optimise their farming operations. “Our main focus is the MF Global series due to the diverse farming activities in our area. Most farmers use low horsepower tractors, but we do have one or two high horsepower tractors …