Heating Mantle Coil

Heating Mantle Coil Price in Bangladesh 2026 – Buy Genuine Replacement Coils

Heating Mantle Coil price in Bangladesh starts from ৳550 for a 250ml/200W unit and goes up to ৳600 for a 500ml/200W coil. ASTZ supplies genuine India-made replacement coils, so chemistry labs, pharmaceutical facilities, and universities can restore a heating mantle to full working condition without buying a brand-new unit.

Heating Mantle Coil Overview – Reliable Heating Element Replacement for Lab Use

A heating mantle coil is the resistive heating element inside a lab heating mantle, and it’s usually the first part to fail after repeated use. Instead of replacing an entire mantle housing, most labs swap out just the coil, which keeps the outer shell, control knob, and wiring intact. This keeps running costs low while restoring the mantle’s original heat output.

How Does a Heating Mantle Coil Work?

Resistive Heating Element Principle

Electric current passes through a resistive wire wound inside the coil, converting electrical energy into heat. The wire heats up as current flows through it, and that heat transfers outward through the woven fabric shell to whatever flask sits inside.

Fabric/Net Construction & Heat Distribution

The coil is embedded in a woven fiberglass net rather than exposed metal, which spreads heat evenly around the curved surface of a round-bottom flask instead of concentrating it at a single hot spot.

Compatibility with Flask Capacity

Each coil is sized to match a specific flask volume — a 250ml coil is built to cradle a 250ml flask snugly, and using a mismatched size reduces heating efficiency and even heat distribution.

Types of Heating Mantle Coils We Offer

Coil by Flask Capacity (100ml, 250ml, 500ml, 1000ml)

ASTZ currently stocks 250ml and 500ml coils, both rated at 200 watts, covering the most common flask sizes used in routine lab work.

Woven Fiberglass Heating Net

Both coils use a fiberglass-insulated weave, which handles sustained heat cycles without breaking down the way cheaper insulation materials do.

Replacement Coil vs Full Heating Mantle Unit

A replacement coil only includes the heating element and its fabric housing, while a full heating mantle unit adds the outer casing, temperature control knob, and power cord — buy a coil only if your existing housing and controls still work.

Key Features to Look for in a Heating Mantle Coil

Wattage & Heat Output

Both ASTZ coils run at 200 watts, giving consistent heat for standard reflux and distillation work without excessive power draw.

Capacity Match (Flask Size Compatibility)

Always match the coil size to your flask volume — a 250ml flask in a 500ml coil won’t heat evenly, since too much of the coil surface stays uncovered.

Weave Density & Heat Uniformity

A tighter weave spreads heat more evenly across the flask surface, reducing the risk of localized hot spots that can crack glassware.

Insulation Material Quality

Fiberglass insulation resists degradation from repeated heat cycles better than lower-grade fabric, extending the coil’s working lifespan.

Durability & Lifespan

A well-maintained coil typically lasts through hundreds of heating cycles before the resistive wire weakens enough to need replacement.

Ease of Installation

Both coils are designed as drop-in replacements, so swapping a worn coil into an existing mantle housing needs no rewiring or special tools.

Heating Mantle Coil Full Specification

Wattage & Voltage Rating

• 250ml coil: 200 Watt, 220V
• 500ml coil: 200 Watt, 230V

Compatible Flask Capacity

• 250ml round-bottom flask
• 500ml round-bottom flask

Material Composition

Woven fiberglass net housing a resistive heating wire, built for sustained lab-grade heat cycles.

Dimensions & Fit

Each coil is shaped to match its rated flask capacity, fitting directly into the corresponding heating mantle housing without modification.

Why Replacing a Damaged Coil Beats Buying a New Heating Mantle

A worn coil is usually the only failed part in an otherwise functional heating mantle — the housing, control dial, and power cord typically outlast the heating element itself. Replacing just the coil costs a fraction of a full mantle unit and takes minutes, making it the more practical choice whenever the rest of the mantle still works.

Coil-Only Replacement vs Full Heating Mantle – Which One to Buy?

Heating Mantle Coil Price in Bangladesh

What Affects the Price (Capacity, Wattage, Brand)

Coil price scales mainly with flask capacity — a 500ml coil costs slightly more than a 250ml coil at the same 200W rating, since it uses more wire and fabric. Brand and country of manufacture also affect price, with genuine India-made coils like these priced higher than unbranded alternatives but lasting considerably longer.

Why Buy Genuine Heating Mantle Coils from astzbd.com

ASTZ sources genuine India-made heating mantle coils rather than unbranded imports, so labs get consistent wattage and a fiberglass weave that holds up under repeated use, backed by nationwide delivery across Bangladesh.

Who Should Buy a Heating Mantle Coil?

Chemistry & Analytical Labs

Routine reflux, distillation, and extraction work wears down coils steadily, making periodic replacement a normal maintenance item.

University & Educational Institutions

Teaching labs run mantles through heavy daily use across multiple student batches, which shortens coil lifespan faster than research settings.

Pharmaceutical & Research Facilities

Consistent, even heating matters for reproducible results, so a worn or unevenly heating coil should be replaced promptly.

Labs Maintaining Existing Heating Mantle Equipment

Any lab with a working mantle housing but a failed heating element is the ideal candidate for a coil-only replacement instead of a full unit purchase.

How to Replace a Heating Mantle Coil – Quick Guide

Unplug the mantle and let it cool completely before starting. Remove the old coil from its housing, noting how the wiring connects to the control unit. Fit the new coil into the housing in the same orientation, reconnect the wiring securely, and test at a low setting before running a full heating cycle.

Heating Mantle Coil Care & Safety Tips

Never run a heating mantle coil without a flask inside it, since heating the empty fabric shell directly can damage the weave. Keep the coil dry and store it away from spills, and inspect the fabric periodically for fraying or exposed wire before each use.

Heating Mantle Coil FAQ

What is a heating mantle coil used for?

A heating mantle coil provides controlled, even heat to a round-bottom flask during reflux, distillation, and other lab heating processes.

Can I replace a damaged coil myself?

Yes, coil replacement is a straightforward drop-in process that doesn’t require rewiring or special tools, as long as the existing housing and controls are still functional.

How do I know which coil capacity fits my heating mantle?

Match the coil’s rated capacity to your flask size — a 250ml flask needs a 250ml coil, and a 500ml flask needs a 500ml coil, for even heat distribution.

How long does a heating mantle coil typically last?

A well-maintained coil typically lasts through hundreds of heating cycles before the resistive wire weakens enough to need replacement.

What causes a heating mantle coil to fail?

Repeated heat cycling gradually weakens the resistive wire, and running the coil without a flask, or exposure to spills, accelerates wear and can cause premature failure.