Gravity convection ovens are laboratory heating tools designed for applications that require gentle, uniform heat without forced air circulation. Commonly used in research labs, quality control environments, educational institutions, and industrial settings, these ovens rely on natural air movement to protect delicate samples while maintaining stable temperatures. The gravity convection ovens offered by Hogentogler include trusted brands such as Thermo Scientific, Quincy Lab, and Memmert, providing reliable solutions for drying, curing, baking, sterilizing, and heat treating. This guide explains how to choose the right gravity convection oven based on the real specifications and use cases of the products available on Hogentogler.com.
Gravity convection ovens use natural airflow rather than fans
Ideal for delicate samples sensitive to airflow disturbance
Hogentogler ovens offer temperature ranges up to approximately 232°C–330°C, depending on model
Chamber volumes range from small benchtop sizes up to roughly 180 liters
Common applications include drying, curing, sterilizing, and testing
Gravity convection ovens heat samples by allowing warm air to rise and cooler air to settle naturally, creating a gentle circulation pattern inside the chamber. Unlike mechanical convection ovens, they do not use fans, making them well suited for powders, foils, and lightweight materials that could be disturbed by forced airflow.
Gravity convection ovens sold by Hogentogler support a range of laboratory heating needs.
Typical temperature ranges include:
Low-temperature models operating around 99°C (210°F)
Standard laboratory ovens reaching approximately 232°C (450°F)
Advanced models capable of temperatures up to 330°C, depending on configuration
Temperature control systems range from analog thermostats to digital PID controllers, with higher-end models offering programmable ramps, timers, and alarms to ensure consistent results and sample protection.
Hogentogler offers gravity convection ovens in multiple chamber sizes to match different throughput and space requirements.
Typical chamber capacities include:
Compact benchtop ovens for small sample loads
Mid-sized units around 60–100 liters
Large-capacity models up to approximately 180 liters
Selecting the right chamber size helps maintain temperature uniformity and ensures efficient operation without overcrowding.
Gravity convection ovens are designed to provide stable temperature environments without aggressive airflow. Features such as perforated heat shields and insulated double-wall construction improve temperature uniformity while protecting sensitive samples from radiant heat spikes.
Most gravity convection ovens sold by Hogentogler feature double-wall steel cabinets, corrosion-resistant interiors, and high-quality insulation. Stainless steel interior options are available for pharmaceutical, clinical, or clean lab environments where corrosion resistance and ease of cleaning are important.
Digital models may include over-temperature protection, under-temperature alarms, door alarms, and locking mechanisms to safeguard samples and ensure compliance with laboratory protocols. Access ports allow for external probes or independent monitoring when required.
Gravity convection ovens are commonly used for:
Drying glassware and lab samples
Curing coatings and adhesives
Sterilizing instruments and materials
Evaporating solvents
Heat treating and annealing components
Educational laboratory experiments
They are particularly well suited for applications where gentle heating is preferred over rapid temperature recovery.
To ensure long-term performance, gravity convection ovens should be operated within their rated temperature limits and kept clean of residue buildup. Avoid blocking airflow paths inside the chamber, and verify temperature accuracy periodically using calibrated probes or sensors.
What is the difference between gravity and mechanical convection ovens?
Gravity convection ovens use natural air movement, while mechanical convection ovens use fans for faster heat distribution.
Are gravity convection ovens slower to heat than mechanical ovens?
Yes, but they provide gentler heating, which is often preferable for delicate samples.
Can gravity convection ovens be used for sterilization?
Yes, many models are suitable for sterilization when operated at appropriate temperatures and durations.
Do gravity convection ovens require ventilation?
Some applications may require external ventilation, especially when heating volatile materials.
Gravity Convection Ovens – https://www.hogentogler.com/laboratory-ovens/gravity-convection.asp
Mechanical Convection Ovens – https://www.hogentogler.com/laboratory-ovens/mechanical-convection.asp
Vacuum Ovens – https://www.hogentogler.com/laboratory-ovens/vacuum-ovens.asp