Electromagnetic Coil Assembly for Continuous Casting Stirrers

Product Specifications

Technical details and manufacturing context for Electromagnetic Coil Assembly

Definition

The electromagnetic coil assembly is a critical component of industrial-grade continuous casting mold electromagnetic stirrers. It is designed to produce precisely controlled alternating magnetic fields that induce electromagnetic forces in molten metal, creating controlled stirring motions. These motions improve metallurgical quality, reduce defects, and enhance the solidification structure in continuous casting processes. The assembly typically consists of high-purity copper conductor windings, high-temperature insulation materials, and a structural support frame. Key parameters include a rated voltage of 24 V DC (±10%), a rated current range of 5–15 A, and a coil resistance of 1.6–4.8 Ω at 20°C (±5%). The magnetic field strength at the center of the mold is adjustable via current and ranges from 50–200 mT. The operating temperature range is -40 to 85°C for continuous operation, with higher peaks possible. The insulation class is Class H (180°C) per IEC 60085, and the IP rating is IP54–IP65 per IEC 60529. The coil wire material is oxygen-free copper (Cu-ETP) per EN 13601, and the insulation material is polyimide or glass fiber with silicone resin, also Class H. The weight ranges from 50–150 kg, depending on coil size and cooling design. The cooling method is water-cooled for continuous high-power operation, with a required cooling water flow rate of 10–30 L/min. These values are directory reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier. The assembly is used in continuous casting molds to stir molten metal, improving grain structure and reducing segregation. It is a component, not a standalone product, and its performance depends on integration with the stirrer system. Verification of model-specific values and standards is essential before procurement.

Working Principle

When alternating current flows through the coil windings, it generates a time-varying magnetic field according to electromagnetic induction principles. This magnetic field penetrates the mold wall and interacts with the electrically conductive molten metal, inducing eddy currents. These eddy currents create Lorentz forces, which result in controlled fluid motion and stirring of the molten metal within the casting mold. The stirring action promotes uniform temperature and composition, refines grain structure, and reduces defects such as porosity and segregation. The magnetic field strength can be adjusted by varying the current, allowing process optimization. The coil is typically water-cooled to manage heat generated during continuous operation.

Common Materials

High-purity copper conductor, High-temperature insulation materials, Structural support frame

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Voltage	24 ±10% V DC	Standard coil voltage; other voltages on request
Rated Current	5–15 A	Depends on coil resistance and magnetic field strength
Coil Resistance	1.6–4.8 Ω	At 20°C; tolerance ±5%
Magnetic Field Strength	50–200 mT	At center of mold; adjustable via current
Operating Temperature	-40–85 °C	Continuous operation; higher peaks possible
Insulation Class	H	Class H (180°C) for high-temperature environmentsIEC 60085
IP Rating	IP54–IP65	Protection against dust and water jetsIEC 60529
Coil Wire Material	Cu-ETP	Oxygen-free copper for high conductivityEN 13601
Insulation Material	Class H	Polyimide or glass fiber with silicone resinIEC 60085
Weight	50–150 kg	Depends on coil size and cooling design
Cooling Method	Water	Water-cooled for continuous high-power operation
Cooling Water Flow Rate	10–30 L/min	Required to maintain temperature within limits

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Coil Windings Part
Conduct electrical current to generate magnetic field

Material: High-purity copper with high-temperature insulation
Cooling System
Remove heat generated during operation to maintain temperature stability

Material: Stainless steel tubing with cooling fluid
Structural Frame Part
Provide mechanical support and maintain coil geometry

Material: Non-magnetic stainless steel or aluminum alloy
Terminal Connections Part
Electrical connection points for power supply

Material: Copper alloy with high-temperature insulation
Insulation System Part
Electrical insulation between windings and to ground

Material: High-temperature ceramic or polymer insulation materials

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Base Unit / Drive Unit

View system integration details

Manufacturers of Electromagnetic Coil Assembly

Manufacturer profiles associated with Electromagnetic Coil Assembly.

Sourcing Electromagnetic Coil Assembly from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the typical rated voltage for this coil assembly?

The rated voltage is 24 V DC with a tolerance of ±10%. Other voltages may be available on request, but this is the standard value listed in the directory.

What cooling method is used?

The coil is water-cooled for continuous high-power operation. The required cooling water flow rate is 10–30 L/min to maintain temperature within limits.

What insulation class does the coil have?

The insulation class is Class H (180°C) per IEC 60085. The insulation material is polyimide or glass fiber with silicone resin, also Class H.

How is the magnetic field strength adjusted?

The magnetic field strength at the center of the mold is adjustable via the current. The range is 50–200 mT, and the actual value depends on the coil resistance and current.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for Electromagnetic Coil Assembly

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Atmospheric to 1.5 bar (mold environment)
other spec:	Max magnetic field strength: 0.5 T, Power input: 10-100 kW, Cooling requirement: Forced air or water cooling mandatory above 50 kW
temperature:	Ambient to 150°C (coil operating), up to 1600°C (mold proximity)

Electromagnetic Coil Assembly

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards