CARBOLITE

Carbolite natural gravity convection box furnaces are available with maximum operating temperatures of 1,100°C, 1,200°C, 1,300°C, 1,500°C, 1,600°C, and 1,700°C. The specific model determines the maximum temperature; for example, the ELF1123-230SN has a 1,100°C maximum, while the HTF1710-230SN reaches 1,700°C. These furnaces are designed for applications such as sintering, ashing, and heat treatment where precise high-temperature exposure is required. Temperature uniformity of ±5°C is typical across the range, ensuring consistent results. When selecting a model, consider the required process temperature, chamber size, and power supply. 3G Electric can provide specification sheets to help match the furnace to your application.

Carbolite natural gravity convection box furnaces operate on standard voltages, typically 200-240 V AC. Power ratings vary by model and chamber size, ranging from 2,400 W for the smallest 0.18 cu ft unit (CWF1205-230SN) to 9,000 W for the 1.27 cu ft model (CWF13036-230SN). The wattage correlates with the maximum temperature and chamber volume; higher-temperature and larger-capacity furnaces require more power. It is important to verify that your facility's electrical supply can accommodate the furnace's requirements. 3G Electric can assist with electrical specifications and compatibility checks to ensure proper installation.

Natural gravity convection relies on the natural movement of heated air to distribute heat within the chamber, resulting in gentle heating and uniform temperature distribution without a fan. This is suitable for processes where airflow might disturb samples or cause contamination. Forced air circulation uses a fan to actively circulate air, providing faster heating and more uniform temperature distribution, especially in larger chambers. Carbolite offers both types; the natural gravity convection box furnaces are ideal for ashing, sintering, and heat treatment where sample integrity is critical. The choice depends on the specific process requirements and sample sensitivity.

Yes, Carbolite natural gravity convection box furnaces are commonly used for ashing applications. Ashing involves heating a sample to high temperatures to burn off organic matter, leaving an inorganic residue for analysis. The furnaces provide precise temperature control and uniformity, which are essential for reproducible ashing results. Models with maximum temperatures of 1,100°C to 1,200°C are often sufficient for ashing, but higher-temperature models can be used for specific materials. The natural gravity convection design minimizes turbulence, which can be beneficial for delicate samples. 3G Electric supplies these furnaces with options for different chamber sizes to accommodate various sample volumes.

3G Electric provides global logistics support, application assistance, and access to replacement parts and consumables for Carbolite furnaces. We maintain inventory of commonly specified models and can source less common configurations. Our team can help with model selection based on your temperature, capacity, and power requirements. We also offer technical documentation, including manuals and specification sheets, to support integration and operation. For maintenance, we can supply heating elements, thermocouples, and controllers. 3G Electric serves customers worldwide, ensuring that support is available regardless of location. Contact us for a quote or to discuss your specific needs.

Carbolite furnaces are designed for both laboratory and industrial environments. The construction includes ceramic fiber insulation and robust heating elements that can withstand repeated thermal cycling. While they are often used in laboratory settings, many models are employed in production and quality control for continuous or semi-continuous operation. Factors such as duty cycle, atmosphere, and maintenance affect longevity. For continuous use, it is important to follow the manufacturer's guidelines for installation, ventilation, and preventive maintenance. 3G Electric can provide information on model-specific capabilities and recommend appropriate configurations for industrial applications.