Molten Metal Pump

Product Specifications

Technical details and manufacturing context for Molten Metal Pump

Definition

The Molten Metal Pump is a component used in basic metal manufacturing, specifically within the Smart Molten Metal Degassing and Filtration System. Its primary function is to actively circulate molten metal through degassing and filtration stages, ensuring consistent flow rates, temperature maintenance, and efficient impurity removal during metal casting and refining processes. The pump is engineered to handle extreme temperatures and corrosive environments, with construction materials including high-temperature refractory ceramic, graphite, and special alloy steel. It operates using a motor-driven impeller or positive displacement mechanism, drawing molten metal from a furnace or holding vessel and delivering it under controlled pressure to downstream units. Key parameters for selection include flow rate (10–100 m³/h), head (5–30 m), operating temperature (400–800 °C), motor power (5.5–45 kW), voltage (380–690 V AC), frequency (50–60 Hz), ingress protection (IP54–IP65), insulation class (F–H), wetted material (316L–Hastelloy C-276), shaft seal type (gland–magnetic), weight (150–800 kg), and dimensions (800×400×600 to 1500×700×1000 mm). These values are reference ranges and must be confirmed for the specific model and application. Standards such as ISO 9906, IEC 60034, IEC 60038, IEC 60529, IEC 60085, ASTM A240, and API 682 are listed as procurement references, not as proof of certification. The pump is designed for integration into existing systems, with interfaces for electrical connections and piping. Maintenance signals include reduced flow, increased vibration, or leakage, indicating wear or seal failure. Failure boundaries include operation beyond temperature limits or with incompatible materials. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The pump utilizes a motor-driven impeller or positive displacement mechanism to create flow. Its heat-resistant construction, using materials like refractory ceramic and graphite, allows it to withstand extreme temperatures. The pump draws molten metal from the furnace or holding vessel and delivers it under controlled pressure through degassing and filtration units. The impeller or displacement element is driven by an electric motor, with power transmitted via a shaft or magnetic coupling. The design ensures consistent flow and pressure, enabling effective impurity removal. Selection of materials and seal type depends on operating temperature and required corrosion resistance.

Common Materials

High-temperature refractory ceramic, Graphite, Special alloy steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	10–100 m³/h	Select based on furnace capacity and transfer time.ISO 9906
Head	5–30 m	Higher head for elevated launder systems.ISO 9906
Operating Temperature	400–800 °C	Material selection depends on temperature.
Motor Power	5.5–45 kW	Match to required flow and head.IEC 60034
Voltage	380–690 V AC	Other voltages available on request.IEC 60038
Frequency	50–60 Hz	VFD compatible for speed control.IEC 60038
Ingress Protection	IP54–IP65	Higher rating for dusty environments.IEC 60529
Insulation Class	F–H	Class H for high ambient temperatures.IEC 60085
Wetted Material	316L–Hastelloy C-276	Corrosion resistance at high temperature.ASTM A240
Shaft Seal Type	Gland–Magnetic	Magnetic drive for zero leakage.API 682
Weight	150–800 kg	Depends on pump size and material.
Dimensions (L×W×H)	800×400×600–1500×700×1000 mm	Footprint for installation planning.

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

Impeller
Creates flow by rotating within the pump housing to move molten metal

Material: High-temperature refractory ceramic
Pump Housing
Contains and directs the flow of molten metal through the pump

Material: Special alloy steel with refractory lining
Shaft and Bearings
Transmits rotational force from motor to impeller while withstanding thermal expansion

Material: High-temperature alloy steel with ceramic bearings
Electric Drive Motor
Turns the impeller; the pump has no other power source.
Shaft Seal
Seals the rotating shaft where it enters the pump, chosen for the operating temperature.

Applied To / Applications

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

Smart Molten Metal Degassing and Filtration System

View system integration details

Manufacturers of Molten Metal Pump

Manufacturer profiles associated with Molten Metal Pump.

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Frequently Asked Questions

What is the primary function of the Molten Metal Pump?

It circulates molten metal through degassing and filtration stages to maintain flow, temperature, and remove impurities during casting and refining.

What materials are used in the pump construction?

High-temperature refractory ceramic, graphite, and special alloy steel are used to withstand extreme temperatures and corrosion.

What parameters should be considered for selection?

Flow rate, head, operating temperature, motor power, voltage, frequency, ingress protection, insulation class, wetted material, shaft seal type, weight, and dimensions.

How should the pump be maintained?

Monitor for reduced flow, vibration, or leakage. Follow manufacturer guidelines for inspection and replacement of wear parts.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 10 bar
flow rate:	5 to 500 m³/h
temperature:	600°C to 1200°C
slurry concentration:	Up to 30% solids by volume

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards