The argon purging stopper rod is widely used in the aluminum direct chill casting (DC casting) system, matched with stopper tube / down-spout tube. Made of high-purity fused silica, it features excellent stability against molten aluminum corrosion.
The built-in gas channel allows continuous argon bubbling into molten aluminum, which helps remove hydrogen gas and non-metallic inclusions. It is an essential refractory part for high-quality aluminum slab, sheet ingot and billet production.
| Item | Specification |
|---|---|
| Material | Fused Silica |
| Application | Aluminum DC Casting, Slab / Billet Casting |
| Function | Molten aluminum flow control + Argon degassing |
| Working Temp. | Up to 1100℃ |
| Color | Light blue / Off-white |
| Customization | Diameter, total length, gas hole size & position |
Application Review: We analyze your alloy type, working temperature, and transfer capacity requirements
Layout & Dimension Confirmation: Review your CAD drawings, field sketches, photos, or video walkthroughs
Engineering Design: Our technical team generates customized structural drawings and flow path layouts
Material Selection: Optimal refractory and insulation grades are selected based on thermal requirements
Precision Fabrication: Steel shell welding, lining installation, and surface coating performed to strict tolerances
Rigorous Inspection: Comprehensive dimensional check, structural review, and quality testing prior to dispatch
Delivery & Technical Support: Secure crating and dedicated engineering assistance for seamless on-site integration
Dedicated Custom Engineering: Built for your exact layout rather than rigid standard templates
Superior Thermal Efficiency: Advanced insulation minimizes temperature drop between the furnace and caster
Durable Construction: Heavy-gauge steel and premium refractory formulas withstand harsh foundry conditions.
Direct Factory Supply: Cost-effective pricing, professional technical communication, and reliable global shipping.
We manufacture aluminum launders according to the actual requirements of each aluminum plant instead of relying only on standard dimensions.
The launder structure can be configured with suitable refractory and insulation materials for molten aluminum transfer applications.
The launder can be designed to connect with existing furnaces, filtration equipment, degassing systems and casting machines.
Flow direction, dimensions, connections, covers and other structural details can be customized according to the application.
Longzhiyi provides direct manufacturing and technical communication for customized molten aluminum handling equipment.
To develop a suitable aluminum launder for your production line, please provide:
Production Line Drawing
A CAD drawing or simple layout showing the furnace, filter, casting machine and launder position.
Existing Equipment Dimensions
Connection dimensions and installation space of the related equipment.
Photos or Videos
Photos of the existing installation area help our engineers understand the actual working conditions.
Molten Aluminum Flow Requirements
Required transfer capacity and flow direction.
Operating Temperature
Typical molten aluminum temperature and operating conditions.
Connection Requirements
Inlet, outlet and connection dimensions of the upstream and downstream equipment.
No complete drawing? No problem.
You can send us photos, videos and basic dimensions for an initial engineering evaluation.
Different aluminum production lines require different molten aluminum transfer solutions.
Whether you need a straight aluminum launder, multi-section launder, refractory-lined launder, covered launder or a customized molten aluminum transfer system, Longzhiyi can manufacture the solution according to your plant layout and process requirements.
Send us your drawings, dimensions or plant photos. Our engineering team will review your requirements and develop a suitable aluminum launder solution for your production line.
What is a refractory launder used for?
A refractory launder is an insulated trough used to safely transport high-temperature molten aluminum between melting furnaces, treatment equipment, and casting machines while preventing heat loss and contamination
Can these launders be custom-built for our existing plant layout?
Yes. Longzhiyi specializes in custom manufacturing based on your exact plant dimensions, angles, length, and equipment connection requirements
What materials are used for the inner lining?
We select high-grade ceramic and precast refractory materials optimized for molten aluminum contact, offering excellent non-wetting properties and resistance to corrosion
How do we place an order if we don't have formal CAD drawings?
No problem! You can provide basic hand-drawn dimensions, site photos, or videos of your current setup, and our engineering team will evaluate and design a compatible replacement or upgrade
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| Our engineers carry out site survey, layout matching and whole-process installation construction for aluminum launder systems, delivering reliable molten aluminum transfer solutions. | Professional on-site installation of aluminum launder for aluminum casting plants, lower heat loss, reduce sticky aluminum and slag. |
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| On-site survey & customized molten aluminum launder. Tailor-made according to your workshop layout to avoid leakage and excessive temperature loss. | Professional on-site installation service for molten aluminum launder. Precise leveling and tight joint sealing reduce temperature loss and aluminum leakage. |
