Plug & Play Efficiency
Compact footprint, low infrastructure requirements — easy integration into any lab.
Laboratory Machines
Laboratory Calender GK 300 LThe indispensable basis for your innovations with flexible, real-world calender testing at lab scale
Your innovations start here
Accelerate research with lab-scale calendering built for real-world impact
The GK 300 L empowers researchers to simulate industrial calendering processes with precision, flexibility, and efficiency. Engineered for adaptability across materials and industries, it’s the trusted solution for labs pushing the boundaries of innovation.
Modular flexibility for diverse applications
Designed to handle a wide range of materials — including foils, powders, slurries, granules, and both coated and uncoated substrates — the GK 300 L adapts seamlessly to your specific use case. It can be configured for either vertical or horizontal operation to fit your lab’s footprint and workflow. This makes it an ideal solution for R&D in diverse sectors, including battery technology, hydrogen fuel cells, plastics, and specialty chemicals.
Real-world process simulation
The GK 300 L enables accurate replication of industrial calendering parameters at lab scale. With line speeds of up to 5 m/min, compression forces reaching 15 tons, and gap control accuracy down to ±1 µm, it delivers high-fidelity data to support meaningful experimentation and scale-up decisions.
Configurable and expandable design
Engineered for flexibility, the GK 300 L can be equipped with additional modules such as unwinders, rewinders, heating or cutting units to match your evolving testing needs. An optional electrohydraulic system allows for precise control of pressure and gap settings via a mobile panel. Thanks to its plug-and-play architecture, the system requires only a power connection – no compressed air or complex setup – making it easy to install and operate in any research environment.
Technical Specifications
Built to meet the demands of modern R&D
The GK 300 L delivers lab-scale control with industrial-grade reliability. From high compression forces to micron-level gap accuracy, every component is designed to simulate real-world production conditions with confidence. The system’s key technical specifications are engineered to meet the highest demands of advanced R&D environments.
Technical Specifications
Web Width
Up to 300 mm
Line Speed
Up to 5 m/min
Roller Diameter
200 mm
Compression Force
Up to 15 tons
Gap Accuracy
± 2 µm
Roller Temperature
+25 °C to +150 °C
Gap Adjustment
Active gap-/pressure control
Control System
Mobile panel
Roller Coatings
Chrome, tungsten carbide or rubber
Roller Hardness Values
Up to 68 HRC
Modularly designed – GK 300 L with additional components
Tailored to your demands, components such as unwinders and rewinders, heating units, cutting units or guide rollers can be added flexibly. As an additional option, the gap adjustment and the pressure of up to 250 bar can be regulated via an electrohydraulic control system – optionally also via mobile panel, which can be used to set further parameters.
Flexible unit positioning
The calender unit can be mounted vertically or horizontally on the trolley — pre-configured connections make setup fast and adjustable to your process.
Roller specifications
Roller width: 300 mm; line speed up to 5 m/min — ideal for lab-scale trials and detailed process studies.
Gap adjustment
The GK 300 L features a mechanical gap adjustment system with a robust ratchet and precision wedge design. This allows for independent left and right gap setting, even under full load — giving operators complete control over material thickness and pressure distribution during testing.
Precision gap control
Gap force up to 15 tons can be applied with high accuracy, supported by integrated measurement sensors. Left and right gap settings can be independently adjusted with a precision of ±2 µm, ensuring exact replication of production conditions and delivering reliable, reproducible data.
Integrated feeding options
The system comes ready to handle both sheet and web formats, featuring an infeed table, powder hopper, and guide rollers. These components enable custom web path routing and efficient handling of diverse material types without added complexity.
Modular expansion options
The GK 300 L is compatible with a variety of optional components, including unwinders, rewinders, heating units, cutting systems, and additional guide rollers. Each can be flexibly added to match the needs of your experimental setup — maximizing capability without compromising simplicity.
Electrohydraulic upgrade
For enhanced control, an electrohydraulic upgrade is available, enabling automated regulation of both gap and pressure — up to 250 bar. Paired with a mobile control panel, this upgrade allows for advanced parameter input, supporting high-throughput, high-precision process trials with minimal manual intervention.
True to scale and within minutes
Configure your laboratory calender online
Every innovation is unique — and your lab machine should be, too. Use our interactive product configurator to define your GK 300 L system based on material type, process steps, temperature zones and roller specs.
Get a precise, ready-to-build configuration — fast, intuitive, and engineered to fit your R&D goals.
Designed for Discovery. Built for Results.
The GK 300 L lab calender is your foundation for innovation. It enables real-world testing under scalable process conditions — bridging the gap between lab and production with precision and flexibility.
Process Precision
Independent left/right gap control with real-time sensors ensures ±1 µm accuracy.
Multimaterial Compatibility
Suitable for foils, slurries, powders, and more — ideal for battery, plastics, and hydrogen sectors.
Scalable Process Simulation
Simulates key calendering steps with reliable, repeatable outcomes.
Development Center
From idea to execution: real-world trials in our lab
Welcome to the new Development Center in Vreden, Germany — a purpose-built facility designed to turn your ideas into scalable solutions. Equipped with cutting-edge laboratory calenders like the GK 300 L, the center offers a controlled environment for conducting advanced tests on a wide range of substrates and materials. Whether you’re developing dry electrode layers for battery cells, exploring new hydrogen fuel cell designs, or optimizing converting processes, this is where precision meets possibility.
Our facility includes climate-controlled lab spaces, modular testing zones, and fully instrumented setups for simulating industrial conditions on a lab scale. With flexible infrastructure and plug-and-play machines, trials can be configured and run within hours — not days. Backed by our in-house experts in process engineering, material science, and automation, the Development Center gives you more than data — it gives you direction. We’re here to help you validate concepts, optimize parameters, and accelerate your path from prototype to production.
Laboratory Calender for rent
Test on-site with our mobile lab calender
Need to run tests in your own environment?
The GK 300 L is available for short-term rental – and thanks to its compact, plug-and-play design, we can deliver it directly to your facility using our dedicated transporter. Whether you’re validating materials, optimizing process parameters, or preparing for scale-up, you can perform real-world testing without disrupting your lab setup. Get the insights you need, right where you need them – with full support from our technical team.
Data Sheet
Key applications & industry sectors
Our laboratory machines are trusted by leading research institutes and R&D teams across battery, hydrogen, plastics, and automotive sectors — wherever scalable lab processes are essential.
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Ready to test and validate your ideas?
Whether you're optimizing film coatings, refining material properties, or validating new substrates, the GK 300 L gives you precise control over every step. Run tailored trials at our Development Center — or bring the machine to your site with our mobile lab setup. Wherever you innovate, we’re ready to support you.