Tag: METZEN
What happens when a 1% deviation suddenly costs millions?
Food and animal feed manufacturers in Germany generate more than €200 billion in revenue every year. The animal feed industry alone produces around 22 million tonnes annually. At this scale, even small process deviations can have a significant impact: waste, inaccurate dosing, unnecessary energy consumption or downtime can quickly become major cost factors.
In food and animal feed production, small weaknesses can have serious consequences. Insufficient cooling, inaccurate dosing, bottlenecks in material flow or equipment operating at its limits can jeopardise efficiency, quality and the ability to meet delivery commitments. Downtime is rarely an option.
That is why technical expertise must extend beyond individual machines and components. METZEN considers the entire process and develops tailored solutions, from analysis and engineering to design and in-house manufacturing, through to installation, commissioning and after-sales service. We also carry out complex modernisation projects while production continues.
A project for one of the world’s leading confectionery manufacturers demonstrates just how crucial this can be. Increasing production volumes pushed the existing cooling system to its limits. At the same time, space was restricted and interrupting production was not an option. METZEN developed and integrated a bespoke cooling tunnel incorporating advanced cooling and control technology. The result: greater efficiency, consistently high product quality and improved maintainability.
For a manufacturer of delicatessen products, the challenge was different: increasing throughput without risking glass breakage or compromising the cold chain. METZEN developed an automation solution combining speed, gentle product handling and stringent hygiene standards. The resulting increase in efficiency also enabled the manufacturer to save one full-time position per shift.
In animal feed production, performance and cost-effectiveness depend on the seamless interaction of numerous process stages. METZEN develops complete system solutions for this purpose: from silo and conveying systems to precise weighing and dosing technology, automated material flows, cooling belts and raw material processing. Designed to be modular and scalable, these systems can grow with new formulations, capacities and production requirements.
Whether for an oil mill, biorefinery, food production facility or animal feed plant: when processes reach their limits, a standard solution is not enough. METZEN considers the entire system and develops solutions that make production safer, more efficient and more cost-effective.
When it really matters.
Materials extraction: when every tonne counts
Around 570 million tonnes of mineral raw materials are extracted in Germany alone every year. For operators of quarries, gravel pits and sand works, this means reliably handling and processing enormous material flows. At the same time, demands on performance, energy efficiency and plant availability continue to increase.
METZEN develops solutions that are consistently tailored to each customer’s process. Through our product brands GERWIN and KRÖGER, we combine plant engineering with specialised grab technology for the raw materials industry. From primary crushing and conveying to dosing and material handling, we adapt the technology to the material, site conditions and existing infrastructure.
The modernisation of a mobile primary crusher demonstrates that this does not always require an entirely new plant. An existing feed hopper was limiting throughput and particle size distribution. METZEN developed a stationary, fully electric solution with optimised material feeding and continuous loading. The result: higher throughput, more saleable material and lower CO₂ emissions. Where additional capacity is required, we also deliver modular primary crushing plants that combine short implementation times with high durability and flexibility.
Unusual material properties also require technology precisely matched to the raw material. For the annual handling of 70,000 tonnes of highly corrosive potash salt, METZEN developed a specially coated and structurally adapted KRÖGER grab. It has been in full operation since 2022 and shows no visible signs of wear.
METZEN also develops high-performance grab solutions for the underwater extraction of gravel and sand at depths of more than 100 metres.
Whether a new plant, a targeted modernisation or a particularly demanding raw material, METZEN develops solutions that improve performance, availability and cost-effectiveness throughout the process.
When it really matters.
A steep change in bulk material handling
When decades-old crane technology can no longer meet the demands of modern production processes, new solutions are needed to improve efficiency, operational reliability and automation.
This is exactly the kind of project currently being delivered by KRÖGER Greifertechnik, a METZEN brand, in partnership with BRUNNHUBER Krane Berlin, a member of the Teichmann Group. Together, the companies are equipping a modern automatic crane for a leading cement plant in eastern Germany with two specially engineered 5 m³ motor-driven clamshell grabs. The grabs will be used to handle a wide range of raw materials and bulk solids required for cement production.
For the plant operator, the new system represents a significant technological leap forward. A crane that has been in service for many years, operated from a driver’s cab and equipped with conventional grabs, is being replaced by a modern automatic crane featuring intelligent control technology and application-specific KRÖGER grabs. The result is greater automation, improved operational reliability, more precise material handling and a future-proof bulk material handling solution.
The project is the result of more than a year of close collaboration between the engineering teams at BRUNNHUBER Krane Berlin and KRÖGER Greifertechnik. Working together, they analysed the technical requirements in detail and tailored the grabs precisely to the operating conditions and the specific application.
During a recent project meeting, the teams reviewed progress and discussed the next stages of implementation. The visit also included a tour of BRUNNHUBER Krane Berlin’s modern production facility.
Another notable aspect of the project is its short delivery schedule. Despite the bespoke design, the two motor-driven clamshell grabs will be manufactured and delivered within just 30 weeks, with delivery scheduled for the end of 2026. This is made possible by well-established processes, efficient coordination and the close cooperation of all project partners.
This project clearly demonstrates the value of strong partnerships. When crane engineering and grab technology are integrated from the outset, the result is a solution that makes bulk material handling more efficient, more economical and ready for the future.
We would like to thank BRUNNHUBER Krane Berlin for the open and constructive collaboration and look forward to continuing our successful partnership. Further joint projects are already in preparation.
A new chapter begins: Thank you, Ralf Haupold!
After many years of dedication, international projects and personal connections, we are saying farewell to our Senior Engineer, Ralf Haupold, as he embarks on his well-deserved retirement.
At KRÖGER Greifertechnik, a METZEN product brand, he has played a key role in developing our markets in eastern Germany, Eastern Europe and Turkey. With his extensive international experience, technical expertise and keen understanding of customer needs, he has built lasting relationships and successfully delivered demanding projects.
Whether supplying specialised KRÖGER grabs to gravel plants in Hungary, managing complex projects across Eastern Europe or developing new business opportunities, Ralf Haupold has always stood for practical solutions, rapid response and collaboration on equal terms.
His ability to combine technical expertise with commercial foresight has made him a highly valued contact for customers, partners and colleagues alike.
Dear Mr Haupold, we would like to thank you for your dedication, expertise and the many valuable contributions you have made to KRÖGER Greifertechnik and METZEN.
As you begin your retirement, we wish you above all good health, plenty of time to enjoy the finer things in life and many new experiences.
All the very best for this new chapter – and thank you for the time we have shared!









