L & R Kältetechnik GmbH & Co. KG
About us
L&R Kältetechnik stands for innovative and future-proof cooling systems that not only offer the highest level of efficiency, but also actively contribute to reducing CO₂ emissions. Our cooling systems use natural refrigerants such as propane, which are an environmentally friendly alternative to conventional synthetic refrigerants.
By using this sustainable technology, companies benefit in several ways: The energy efficiency of our systems reduces electricity consumption and thus operating costs, while at the same time meeting environmental requirements and making use of funding opportunities. In addition, our cooling systems offer outstanding reliability and performance - a decisive advantage for companies that rely on constant cooling.
By choosing L&R Kältetechnik, you are opting for a future-oriented cooling technology that optimally combines sustainability and cost-effectiveness. Visit us at the trade fair and find out how our solutions can help your company work more efficiently and in a more climate-friendly way!
Products & services
Advantages of L&R cooling systems
For over 35 years, L&R Kältetechnik GmbH & Co. KG has been synonymous with energy-efficient, custom-designed refrigeration systems “Made in Germany.” The company develops and manufactures custom refrigeration systems for the plastics, surface treatment, and metal industries, placing particular emphasis on sustainability, cost-effectiveness, and operational reliability. By using natural refrigerants and innovative energy-saving technologies, the systems enable potential savings of up to 80% in operating costs. At the same time, L&R solutions are eligible for up to 45% in subsidies, making them particularly attractive from an economic standpoint. Durable components and a well-designed system architecture ensure high availability and future-proofing. Key technologies include, among others, sliding control of the condensation temperature, free cooling at low outdoor temperatures, and speed-controlled compressors, pumps, and fans. The portfolio is complemented by heat recovery and industrial heat pumps to further increase efficiency. L&R relies on high-quality components and transparent systems with integrated energy monitoring and modern controls, including a remote maintenance option. Customers benefit from a holistic approach—from planning through manufacturing to service, all from a single source. Customized solutions, 24/7 service, and sustainable auxiliary systems such as low-chemical water treatment and pressureless filter systems round out the offering. In addition, L&R designs and builds special-purpose cooling systems for demanding applications down to -120 °C.
Container refrigeration systems using natural refrigerants
Container refrigeration systems offer a particularly flexible and practical solution for industrial refrigeration – especially when using the natural refrigerant propane. A key advantage lies in the pre-assembled design: the systems are delivered fully piped and electrically wired. This significantly reduces the installation effort on site and ensures quick and straightforward commissioning. All the system components are compactly integrated within the container. These include the chiller, pumps, a buffer tank and the control cabinet. Systems for water treatment and filtration technology can also be integrated as an option. This comprehensive integration ensures a high level of operational reliability and simplifies both planning and subsequent operation. Particular attention is paid to safety: the chiller is separated from the rest of the area by a partition wall. In addition, gas detection systems are installed to reliably monitor the use of propane. An access door with a panic lock also ensures that the container can be evacuated quickly at any time in an emergency. In addition to their high safety standards, the systems also impress with their energy efficiency. Propane has a very low global warming potential (GWP) and excellent thermodynamic properties, enabling economical and sustainable operation.
L&R Easy Clean System – chemiefreie Wasseraufbereitung für stabile und effiziente Industrieprozesse
The L&R Easy Clean System is an innovative solution for the sustainable treatment of water in industrial cooling and process circuits. It focuses on one of the most important media in industry: water. The system operates directly during normal operation and ensures that water circuits remain permanently clean and functional. Deposits such as scale, corrosion, and biofilms are reduced or prevented—without the use of conventional cleaning chemicals. In doing so, the system not only protects the equipment but also measurably improves process stability and energy efficiency. Heat exchangers remain efficient, malfunctions are reduced, and system availability increases significantly. At the same time, resources are conserved: the need for chemicals, cleaning measures, and water and wastewater treatment decreases noticeably. The result is cost-effective and sustainable operation with less effort in day-to-day operations. The Easy Clean System thus supports modern production environments on their path to greater efficiency, safety, and sustainability—in line with the vision of a future-oriented “Green Factory.” In short: Fewer deposits. Greater efficiency. Maximum process reliability—with water as a key medium used intelligently.
Kälteanlagen mit natürlichem Kältemittel
Efficient refrigeration systems are a key factor in sustainable and cost-effective production. Modern systems specifically rely on natural refrigerants such as propane. These refrigerants are characterized by a very low global warming potential (GWP) and already meet future environmental requirements. In addition to their environmental friendliness, natural refrigerants offer excellent thermodynamic properties that enable particularly energy-efficient operation. Combined with modern system technology, this allows for significant savings in operating costs. These include, among other things, variable-speed compressors, pumps, and fans, variable condensation temperature control, and the use of free cooling at low outdoor temperatures. As a result, the system operates within its optimal performance range at all times. Another advantage: Chillers using natural, non-halogenated refrigerants are often eligible for subsidies. Government programs support investments in energy-efficient and climate-friendly technologies, which can significantly reduce acquisition costs. Efficient chillers based on natural refrigerants thus offer a future-proof solution for industrial applications. They combine high energy efficiency with low emissions and attractive funding opportunities—ideal for companies that want to produce economically and sustainably in the long term.
Industriewärmepumpe
Industrial heat pumps are a key component of modern energy and sustainability strategies in industry. They enable the efficient use of waste heat and convert it into usable process heat—thereby making a significant contribution to reducing energy consumption and CO₂ emissions. Modern industrial heat pumps are increasingly relying on natural refrigerants such as CO₂ or propane. These have a very low global warming potential (GWP) and already meet today’s growing requirements for environmentally friendly refrigeration technology. At the same time, they offer high energy efficiency and are particularly well-suited for demanding industrial applications. Through the use of intelligent control technology and modern components, industrial heat pumps operate particularly efficiently under partial load conditions. Speed-controlled compressors, optimized heat exchangers, and demand-based control ensure stable and energy-saving operation. This allows existing waste heat from production processes, cooling systems, or compressed air systems to be effectively reused. Another advantage: investments in energy-efficient industrial heat pumps are often eligible for government subsidies. This significantly improves both the cost-effectiveness and the payback period of such systems. Industrial heat pumps thus offer a future-proof solution for companies seeking to combine energy efficiency, cost reduction, and sustainability. They enable a significant reduction in energy consumption and actively contribute to the decarbonization of industrial processes.