Heating Mantles

Heating Mantles

Bhanu Scientific Glass Co. provides high-quality heating mantles for glass and metal vessels, designed for precise thermal control in laboratory, pilot, and industrial applications. These mantles ensure uniform heating, safety, and compatibility with borosilicate glass reactors, cylindrical vessels, and spherical vessels.

Heating mantles are used to heat chemical reactors or vessels uniformly without direct flame contact, ensuring process safety and thermal efficiency. When used in combination with support frames, vessels are protected from stress and mechanical misalignment.

Key Highlights:

• Material: Stainless steel frame with insulated heating elements
• Temperature Range: Up to 450°C depending on vessel and mantle size
• Compatibility: Borosilicate glass and metal vessels
• Applications: Chemical reactions, solvent distillation, R&D, and batch processing

Vessels in Heating Mantles Overview

When vessels are placed in heating mantles, the support frame is critical for stability, alignment, and safe thermal expansion. Proper frame design ensures:

• Adequate clearance for mantle insulation and heating elements
• Room for instrumentation, probes, and maintenance access
• Avoidance of lateral stress or bending loads on vessels

Recommended Minimum Frame Sizes for Vessels in Heating Mantles:

Vessel Volume (L)	Tube Size NB (mm)	Min Frame Depth × Width (mm × mm)
20	25	400 × 600
50	25	600 × 800
100	25, 30	800 × 800
200	30	800 × 1000

Design Considerations:

• Provide clearance for thermal expansion, instrumentation, and service access
• Ensure frame is rigid, stable, and properly braced
• Tube NB should match or exceed recommended sizes for added structural stiffness
• Integration with base frames, guide supports, and bracing is essential

Key Features

• Uniform heating with fiber or silicone insulated elements
• Stainless steel construction for frame and safety
• Easy installation and removal of vessels
• Compatible with various vessel sizes
• Optional digital temperature controllers for precision heating

Benefits

• Safe heating of thermally sensitive chemicals
• Minimized risk of thermal stress on glass or metal vessels
• Efficient energy usage for controlled processes
• Compatible with vacuum, reflux, or pressure vessels
• Durable and long-lasting support frame

Applications

• Laboratory and pilot chemical synthesis
• Solvent evaporation and distillation processes
• Pharmaceutical and biotech batch reactions
• Heating in food, beverage, and industrial applications

Optional Accessories

• Digital temperature controllers
• Safety cut-off sensors for over-temperature protection
• Thermal insulation jackets
• Adjustable frame heights for different vessel sizes
• Magnetic stirrer integration

Frequently Asked Questions (FAQ)

Q1: What is the max temperature for heating mantles?
A: Up to 450°C, depending on mantle size and vessel.

Q2: Can vessels under vacuum be safely heated?
A: Yes, with properly designed mantle and frame.

Q3: Are heating mantles customizable?
A: Yes, frame dimensions, temperature controls, and vessel compatibility can be customized.

Q4: What materials are used in the frame and mantle?
A: Stainless steel frames, insulated heating elements, compatible with borosilicate glass and PTFE.

Q5: How is vessel alignment maintained?
A: Through rigid frame design, proper bracing, and clearance allowances to prevent stress or misalignment.