Constant temperature oil bath

Introduction

A constant temperature oil bath is a laboratory instrument that maintains oil at a precise, constant temperature, and it is used for heating samples and reactions at temperatures above the boiling point of water, and for applications that require a uniform and stable temperature, in chemistry, biology, and other laboratories. The oil bath consists of an insulated tank filled with a heat-transfer oil, a heating element, a temperature controller, a stirrer to ensure temperature uniformity, and a digital display; the oil is heated to the set temperature, which can range from above ambient to 200-300 degrees Celsius, depending on the type of oil, and the samples, in flasks, tubes, or other vessels, are placed in the oil or in a rack, and the oil provides uniform heat transfer around the vessels, and the temperature is precisely controlled, and the oil bath is used for reactions that require high temperatures, for distillation, for reflux, for heating viscous samples, and for applications where a water bath is not suitable, and the oil bath is used with proper precautions, since hot oil can be hazardous. Constant temperature oil baths are used in chemistry laboratories for high-temperature reactions, for refluxing and distillation, for heating samples, for melting, for viscosity measurements, for calibrating thermometers, and for many other applications, and they are available in various sizes, with features such as precise temperature control, stirring, and overtemperature protection. With their high-temperature capability and stability, constant temperature oil baths are essential instruments for high-temperature heating.

Constant Temperature Oil Bath LCOB-T2011

Constant Temperature Oil Bath is a precise laboratory instrument with a capacity of 1200 litres that maintains temperatures from room temperature to 200℃. It is constructed from high-qu...

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Constant Temperature Oil Bath LCOB-T2010

Constant Temperature Oil Bath has the temperature range of RT+ 5 to 200 ℃. mode provides high temperature control accuracy. Knob adjustment and liquid crystal display for easy operation...

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Standards

ASTM E2488-09(2014)-Standard Guide for the Preparation and Evaluation of Liquid Baths Used for Temperature Calibration by Comparison

Complies with the above standards, but is not limited to them.

Features

1. Constant temperature oil bath for precise high-temperature heating using oil medium.

2. Stainless steel chamber with digital temperature control for temperatures above water boiling point.

3. Suitable for chemical, pharmaceutical, material, industrial, educational and research labs.

4. Includes oil bath chamber, heater, circulation pump, controller, lid and operation manual.

5. Supports precise, uniform high-temperature heating for reactions and material testing.

FAQ

Q1: What testing scenarios is this oil bath mainly applied to?

A: The constant temperature oil bath is used in chemical laboratories, pharmaceutical development, materials science, industrial quality control, educational institutions and research to provide precise, uniform high-temperature heating (typically up to 200-300 degrees C, beyond the boiling point of water) using oil as the heat transfer medium for chemical reactions, material testing, sample preparation and applications requiring stable temperatures above 100 degrees C. It supports high-temperature chemical reactions (organic synthesis, polymerization, condensation reactions requiring 100-250 degrees C), pharmaceutical formulation and testing (high-temperature stability, melting point determination, wax/petroleum testing), material testing (thermal conditioning, viscosity measurement at high temperature, asphalt/bitumen testing), industrial process simulation, educational laboratory high-temperature experiments, and general laboratory heating where water baths cannot reach the required temperature. The oil medium provides excellent temperature uniformity and stability at high temperatures, with the advantage of not boiling at 100 degrees C (unlike water), making it suitable for high-temperature applications.

Q2: What standards does the oil bath comply with?

A: The constant temperature oil bath complies with relevant IEC 61010 laboratory electrical safety standards, IEC 61326 EMC standards, and applicable GB/T standards for laboratory heating equipment. The hardware complies with applicable safety standards for heated oil and electrical equipment (fire hazard from hot oil). Temperature accuracy should be verified with a calibrated reference thermometer for critical applications. For pharmaceutical/industrial use, follow applicable GMP/GLP and data integrity requirements. The oil bath should have proper over-temperature protection (safety thermostat) to prevent oil overheating and fire. Users should verify compliance with specific facility requirements (fire safety, ventilation for oil fumes at high temperatures).

Q3: What is the warranty period for the whole oil bath and key components?

A: The whole constant temperature oil bath is covered by a 12-month warranty. The stainless steel chamber, heating element, circulation pump, controller, lid and housing are covered, while gaskets and fuses are consumables or accessories. Damage from improper use, oil fire, running without oil, oil degradation or unauthorized repair is excluded. Extended service contracts may be available. Heating element lifespan depends on usage and oil quality (oil degradation can cause carbon buildup on heating element, reducing efficiency and causing hot spots).

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained laboratory personnel familiar with high-temperature oil bath use, oil selection and fire safety. We provide operation manuals, training and application support. Proper oil selection (based on required temperature range, flash point, viscosity), oil level maintenance, temperature setting, sample handling, hot oil safety (fire hazard, burns), oil maintenance/replacement and emergency procedures (oil fire) are important for safe, effective high-temperature heating. Oil baths present a fire hazard at high temperatures - proper precautions are essential.

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. Temperature uniformity verification periodically (measure at multiple locations in the bath). Heating element condition checked (carbon buildup, corrosion). Routine oil inspection and replacement (oil degrades over time - darkening, increased viscosity, odor indicate degradation; replace oil when degraded or every 3-6 months depending on usage). Full system performance check annually. Controller accuracy and over-temperature safety verified. Circulation pump maintained per schedule.

Q7: Are supporting consumables universal?

A: Heat transfer oil (silicone oil, mineral oil, paraffin oil - select based on temperature range and flash point), gaskets, fuses and cleaning supplies are available from laboratory/chemical suppliers. Long-term consumable cost includes oil replacement (depends on usage and temperature - higher temperatures accelerate oil degradation). Use only oil rated for the bath maximum temperature (oil flash point should be at least 50 degrees C above the maximum operating temperature for safety).

Q8: Can I customize parameters or supporting accessories?

A: Customization includes bath capacity (volume), temperature range (ambient+10 to 200/250/300 degrees C), temperature uniformity, control type (analog, digital, programmable), circulation pump (for improved uniformity), stainless steel grade (304, 316), lid type, sample rack, over-temperature protection, data logging and accessories. Additional racks, lids and accessories can be ordered separately. Custom orders extend delivery lead-time.

Q9: Does the purchase include on-site installation and commissioning service?

A: No complex installation is required. The package includes the constant temperature oil bath, lid and instruction manual. On-site service is not included. Fire safety assessment is recommended for high-temperature oil bath use.

Q10: What types of samples are compatible with this equipment?

A: The constant temperature oil bath heats samples in test tubes, flasks, beakers, bottles and other heat-resistant containers (glass or metal) within the bath capacity, temperature range (typically up to 200-300 degrees C) and oil compatibility specification. Different applications require specific oils: mineral oil/paraffin oil for up to ~150-180 degrees C (lower cost, but lower flash point), silicone oil for up to ~200-250 degrees C (more stable, higher flash point, but more expensive), specialized high-temperature oils for up to 300+ degrees C. The oil flash point should be at least 50 degrees C above the maximum operating temperature (safety margin to prevent fire). Users should select appropriate oil for the temperature range (check flash point, maximum use temperature, viscosity, toxicity - silicone oil is generally safer and more stable but more expensive), maintain proper oil level (do not let oil level drop below the heating element - can cause element burnout and fire; check oil level regularly, especially at high temperatures where oil evaporation/degradation occurs), set appropriate temperature (do not exceed oil maximum use temperature or bath maximum rating - overheating oil causes degradation, fumes, and fire hazard), use the oil bath in a well-ventilated area (oil fumes at high temperatures can be irritating or toxic - use fume hood for temperatures above 150 degrees C or with oils that emit fumes), have proper fire safety equipment nearby (Class B fire extinguisher for oil fires - never use water on an oil fire, water spreads the fire), avoid heating flammable solvents in open containers in the oil bath (use sealed containers or heating mantle in fume hood - flammable solvent vapors can ignite from hot oil surface), use appropriate containers (borosilicate glass for up to ~200 degrees C, metal for higher temperatures - ensure container is rated for the temperature), avoid thermal shock to glassware (do not place cold glassware in hot oil, do not remove hot glassware and place on cold surface - can cause breakage), follow proper hot oil safety (use tongs/heat-resistant gloves, be careful of oil splashing when inserting/removing samples, oil can cause severe burns), replace oil when degraded (darkening, increased viscosity, sludge, odor - degraded oil has poorer heat transfer and increased fire risk; dispose of used oil per hazardous waste regulations), and for long-duration high-temperature use, monitor oil level and condition regularly (oil can evaporate or degrade significantly over days/weeks at high temperatures). The oil bath should be placed on a heat-resistant, stable, level surface with proper clearance (do not place near flammable materials, paper, solvents - fire hazard). The bath should have proper over-temperature protection (safety thermostat that cuts power at a set temperature above the working temperature - verify this is functional). The oil bath should NOT be left unattended at high temperatures for extended periods (fire hazard - use a timer or temperature controller with safety cutoff, and have someone monitor or use an automated safety system). For applications requiring very precise temperature control (e.g., viscosity measurement, material testing), use a circulating oil bath (pump circulates oil for better uniformity) or verify uniformity with a calibrated thermometer at multiple locations. The oil bath should be cleaned when changing oil (drain old oil, wipe chamber with solvent, dry completely before adding new oil - mixing old degraded oil with new oil reduces new oil life). Waste (used oil, cleaning solvents) should be disposed of per hazardous waste regulations (used oil may be classified as hazardous waste depending on composition and local regulations).