Laboratory furnaces

Laboratory furnaces for incineration, annealing and sintering

Modern research laboratories and quality control departments use advanced laboratory furnaces that guarantee the highest precision and repeatability of thermal processes. These devices are essential for the implementation of key technological tasks, such as:

• precise incineration of organic substances in accordance with ISO standards,
• annealing modifying the crystal structure of materials,
• sintering of modern ceramics and calcination to remove impurities,
• conducting accurate thermogravimetric analyses,
• professional hardening, tempering and aging of raw materials,
• efficient smelting of metals at extreme temperatures.

Depending on the specifics of the research carried out, specialists choose muffle, tubular or chamber models that provide excellent thermal stability. In the most demanding projects, high-temperature furnaces are used, reaching up to 1600 degrees Celsius. The use of durable graphite or quartz crucibles allows for safe processes, which translates into full reliability of results and high work efficiency.

Muffle, chamber, tubular and high-temperature furnaces

The choice of heating equipment depends on the material and technical parameters. In processes requiring cleanliness, muffle furnaces with a ceramic cover work well.Chamber models,  on the other hand  , are resistant to exhaust fumes, which allows safe work with precious metals up to 1400°C.

The Nabertherm and Carbolite Gero brands combine fibre insulation with support via LCD panels. The offer includes systems tailored to different needs:

• tubular furnaces with a zone of up to 900 mm for protective gases,
• high-temperature devices for ceramics up to 1750°C,
• advanced vacuum systems for anaerobic processes,
• efficient high-power induction heaters,
• Specialized microwave models for rapid testing.

Modern controllers provide full control over the process, which guarantees repeatability and the highest product quality.

MagmaTherm high-temperature furnaces up to 1750°C

MagmaTherm devices are designed to operate in the most extreme conditions, where precision and reliability play a key role. Thanks to their advanced design based on high-end ceramic plates,these systems guarantee full repeatability of each cycle and exceptional thermal stability necessary in advanced industrial processes.

Their key advantages are:

• firing ceramics and dental porcelain,
• precise melting of test samples,
• advanced metal alloy processing,
• safe cooperation with quartz reactors,
• conducting complex processes on a solid, refractory bottom.

The manufacturer has placed particular emphasis on user safety by using an innovative double-wall system with efficient ventilation. This solution ensures that the outer casing does not heat up excessively, which ensures comfortable and trouble-free operation even during the most demanding laboratory tests.

Tube furnaces with protective gas atmospheres

In anaerobic processes, tubular furnaces operating in an atmosphere of protective gases play a key role. Their design allows for rigorous monitoring of the gas composition, which effectively protects samples from oxidation and ensures their impeccable purity. Most often, nitrogen or argon are used in them, supplied to the interior through hermetic connections.

These devices operate at temperatures up to 1300°C. The technological process begins with the removal of oxygen by vacuum pumps, which is a standard in materials engineering. The safety of personnel is ensured by afterburning systems and efficient extractors that remove process fumes.

 Modern tube furnaces provide:

• high thermal stability of the system,
• possibility of using graphite and quartz crucibles,
• insulation, effectively reducing energy losses,
• full separation of the material from external factors,
• obtaining reproducible analysis results,
• optimal efficiency of research processes.

MoSi2 heating elements for precise control

Advanced thermal processes require reliable heat sources, such as MoSi2 components, that operate stably even at 1800°C. These  guarantee atmosphere purity and precision, while SiC rods offer high power and rapid heating. The whole is complemented by modern thermal insulation, which effectively retains energy inside the device, protecting its housing from heating.

The course of the operation is supervised by PID controllers, which eliminate errors and the risk of overheating. Programmable ramps allow for free design of cycles – from the heating phase, through endurance, to cooling. This automation ensures repeatable results and protects fragile materials from damage. A wide range of capacities allows you to match the equipment to the needs of the laboratory and production.

The elements of MoSi2 are:

• high thermal stability,
• efficient SiC rods, ensuring rapid temperature increase,
• intelligent PID controllers with ramp programming function,
• a wide range of capacities - from 1 to 60 liters,
• perfectly uniform heat distribution throughout the chamber.

PID controllers and programmable heating ramps

At the heart of precise heat control are advanced PID algorithms that ensure a stable temperature regardless of the current load. For this purpose, we use modern components that guarantee smooth operation, effective protection against overheating and the highest level of safety. These are primarily:

• advanced PID algorithms,
• sensitive thermocouples type S and B,
• non-contact pyrometers,
• silent SSR relays,
• IoT remote surveillance systems,
• Precision limit switches.

Modern controllers give full freedom in the design of heating curves, allowing for easy setting of rise ramps and precise holding times. Thanks to the use of IoT technology, the process can be supervised remotely, which at the same time improves the automatic generation of quality documentation. The whole is complemented by regular calibration of the sensors, which is the foundation for reliable and reproducible measurement results.

Working chamber capacity from 1 to 60 liters

The available devices are characterized by a wide range of capacities - from liter models to 60 liters, which allows you to precisely adjust the equipment to the volume of the load. The furnaces can operate at 230V or 400V, with a higher value significantly accelerating the heating process of the system.

The comfort of work is increased by:

• door opening systems - flap and lift,
• advanced, forced air circulation,
• high energy efficiency of the device,
• identical thermal conditions throughout the chamber,
• full repeatability and reliability of results.

The use of forced air circulation is fundamental during processes such as drying and roasting materials. It guarantees high precision, which directly affects the quality of laboratory analyses. By maintaining stable parameters, the user can be sure that each test will be carried out in optimal and repeatable conditions.

We invite you to check the full range of laboratory furnaces on our website!