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Puwei Silicon Carbide Riser Tubes (also known as SiC Riser Tubes, Silicon Carbide Riser Pipes, SiC Casting Tubes, and Silicon Carbide Molten Aluminum Tubes) are high-performance ceramic tubes engineered for the reliable transfer and handling of molten aluminum and other non-ferrous metals. Designed for Low-Pressure Die Casting (LPDC), aluminum alloy wheel manufacturing, melting and holding furnaces, and molten metal delivery systems, these tubes deliver excellent thermal shock resistance, high-temperature stability, and low wettability with molten aluminum.
As a manufacturer of advanced ceramic solutions, Puwei also produces Silicon Nitride Bonded Silicon Carbide Tubes, Si3N4 Bonded SiC Riser Tubes, Aluminum Titanate Riser Tubes, Silicon Carbide Heater Protection Tubes, Molten Aluminum Protection Tubes, and Ceramic Riser Pipes, offering foundries and casting plants a complete range of high-temperature ceramic components.
Puwei SiC Riser Tubes are built to outperform in the most demanding molten metal environments. Key advantages include:
Compared with conventional metal or lower-grade ceramic tubes, Puwei Silicon Carbide Molten Aluminum Tubes and SiC LPDC Riser Tubes offer longer service life, reduced downtime, and lower replacement costs. Our in-house manufacturing of Silicon Nitride Bonded Silicon Carbide Tubes and Aluminum Titanate Riser Tubes ensures consistent quality and fast delivery.
Puwei Silicon Carbide Riser Tubes and Silicon Carbide Transfer Tubes are widely used in:
These tubes are also suitable for use alongside Silicon Carbide Heater Protection Tubes and Molten Aluminum Protection Tubes in complete molten metal handling setups.
Puwei holds ISO9000 certification and implements a comprehensive quality management system. Every stage of mass production is strictly monitored and controlled according to established procedures and standards. Up to 3 free samples are available for evaluation (customer provides courier account for freight collect).
Puwei offers full customization for SiC Riser Tubes, SiC Casting Tubes, and Ceramic Riser Pipes:
As a manufacturer (not a trading company), Puwei controls every step of production — from raw material selection to final inspection. Our quality management system covers:
We also produce related high-temperature ceramic products such as Silicon Nitride Bonded Silicon Carbide Tubes, Si3N4 Bonded SiC Riser Tubes, Aluminum Titanate Riser Tubes, Silicon Carbide Heater Protection Tubes, and Molten Aluminum Protection Tubes.
Aluminum Wheel Manufacturer (Europe): "Puwei SiC Riser Tubes have significantly reduced our replacement frequency in LPDC lines. Thermal shock resistance is excellent."
Foundry Equipment Supplier (North America): "We use Puwei Silicon Carbide Molten Aluminum Tubes in our transfer systems. Low wettability means less buildup and easier maintenance."
Automotive Casting Plant (Asia): "Custom dimensions and fast delivery from Shanghai port made Puwei our preferred supplier for SiC Casting Tubes."
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Main Product:
Alumina Ceramic Substrates,
Aluminum Nitride Substrates,
Metallized Ceramics,
AlN Ceramics Disc,
DPC Substrate ,
DBC Ceramic Substrate
