Introduction
A gravity convection oven is a laboratory oven that heats samples and materials using natural convection, in which hot air rises and cooler air sinks, creating a gentle, natural circulation of air within the chamber, without the use of a fan, and it is a simple, quiet, and reliable oven for applications that do not require rapid drying or vigorous airflow. The oven consists of an insulated chamber with electric heating elements at the bottom or sides, and the heated air rises naturally through the chamber, passes around the samples on the shelves, and circulates back down, providing even but gentle heating; because there is no fan, the airflow is mild, which is an advantage for drying powders, fine particles, and samples that could be disturbed or blown away by forced convection, and it also reduces the risk of cross-contamination between samples. Gravity convection ovens are used in laboratories for drying glassware, for drying and conditioning samples and materials, for moisture determination, for baking, for sterilization by dry heat, and for general heating applications in chemistry, biology, food, pharmaceutical, and materials laboratories, and they are suitable for applications where a gentle and stable heating environment is preferred. They are available in various sizes and temperature ranges, with features such as digital temperature control, adjustable shelves, and overtemperature protection. With their simplicity, reliability, and gentle heating, gravity convection ovens are essential equipment for drying and heating applications.
Gravity Convection Oven LGCO-T2015
Gravity Convection Oven is capable of reaching temperatures from 50 ℃ to 250 ℃. With a chamber volume of 72L, it accommodates two specious slaves each having a 5kg capacity. Equipped w...
Gravity Convection Oven LGCO-T2013
Gravity Convection Oven is a stainless-steel chamber with 56 arc chamber design offers easy cleaning. It has temperature range +10 to 200℃ with ± 0.5°C and small temperature fluctuati...
Gravity Convection Oven LGCO-T2014
Gravity Convection Oven is a stainless-steel chamber with 27 arc chamber design offers easy cleaning. It has temperature range +10 to 200℃ with ± 0.5°C and small temperature fluctuati...
Gravity Convection Oven LGCO-T2011
Gravity Convection Oven is a stainless-steel chamber with 140 arc chamber design offers easy cleaning. It has temperature range +10 to 200℃ with ± 0.5°C and small temperature fluctuat...
Gravity Convection Oven LGCO-T2012
Gravity Convection Oven is a stainless-steel chamber with 96 arc chamber design offers easy cleaning. It has temperature range +10 to 200℃ with ± 0.5°C and small temperature fluctuati...
Gravity Convection Oven LGCO-T2010
Gravity Convection Oven is a stainless-steel chamber with 200 arc chamber design offers easy cleaning. It has temperature range +10 to 200℃ with ± 0.5°C and small temperature fluctuat...
Standards
DIN 12880:2007-Laboratory electrical equipment-Heating cabinets and heating ovens
ASTM E145-94(2016)-Standard Specification for Gravity Convection and Forced Ventilation Ovens and Incubators
Complies with the above standards, but is not limited to them.
Features
1. Gravity convection oven for laboratory drying and heating with natural air circulation.
2. Natural convection design without fan for gentle, vibration-free heating.
3. Suitable for delicate samples, biological materials, electronics and general drying.
4. Precision temperature control with uniform heating for reproducible results.
5. Includes oven chamber, controller, shelves, ventilation and operation manual.
FAQ
Q1: What testing scenarios is this oven mainly applied to?
A: The gravity convection oven is used in biological laboratories, electronics manufacturing, pharmaceutical testing, material research, educational institutions and quality control departments to dry, heat, cure and incubate samples and materials using natural gravity convection without a fan. It supports drying of delicate samples that could be disturbed by forced air, biological sample drying, electronics and component baking, material curing, gentle heating of sensitive materials, and general laboratory drying where vibration or air movement from fan-forced ovens could affect samples. The natural convection provides gentle, uniform heating without air turbulence. It is essential for laboratories requiring gentle, vibration-free heating for delicate samples, biological materials, electronics, powders and sensitive materials where forced air circulation could cause sample displacement, drying inconsistency or contamination, and where stable, natural convection provides the appropriate heating environment for biological, electronic, material and educational applications.
Q2: What standards does the oven comply with?
A: The gravity convection oven complies with relevant IEC 61010 laboratory electrical safety standards and GB/T standards for laboratory ovens. Specific applications follow their own test methods for temperature and time. Temperature accuracy and uniformity should be verified with calibrated reference thermometers for critical applications.
Q3: What is the warranty period for the whole machine and key components?
A: The whole oven is covered by a 12-month warranty. The heating elements, controller and chamber are covered, while shelves, gaskets and fuses are consumables or accessories. Damage from improper use, overheating or unauthorized repair is excluded.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation is simple: place samples inside, set temperature and time, allow stabilization. No professional training is required, but users should follow proper sample handling, temperature setting and safety guidelines. We provide an operation manual and remote guidance.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Temperature calibration against a reference thermometer recommended every 6-12 months for critical applications. Heating element condition inspected periodically. Gasket and seal inspection regularly. Routine chamber cleaning recommended. Gravity convection ovens may have slower temperature recovery and should be allowed adequate stabilization time.
Q7: Are supporting consumables universal? What about the long-term procurement cost?
A: Shelves, gaskets and fuses are available from laboratory suppliers, though compatibility should be verified. Long-term consumable cost is low, with electricity being the main ongoing expense.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes chamber size, maximum temperature, shelving, controller type and ventilation. Additional shelves, trays and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes the oven and shelves with an operation manual. No complex installation is required beyond power connection. On-site calibration and training service are available at additional cost for quality control laboratory setup.
Q10: What types of samples are compatible with this equipment?
A: The gravity convection oven dries and heats solid, liquid and paste samples within the temperature range and chamber capacity. Volatile, flammable or explosive samples should not be heated in a standard oven. The natural convection means temperature uniformity may be less than forced convection, and recovery after door opening is slower. Users should use appropriate sample containers, avoid overloading to ensure air circulation, allow adequate temperature stabilization due to natural convection, follow specific test method temperatures and times, and ensure adequate ventilation for fume extraction. The oven should not be used for applications requiring rapid temperature changes or high uniformity where forced convection would be more appropriate.
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