Crucibles
Clay-graphite and silicon carbide crucibles for melting and holding aluminium
View details Accessories · Metal handling
Transfer Tubes
LPDC riser tubes and launder transfer tubes in cast iron or technical ceramics
Overview
What it is and where it works
Tubes that carry molten aluminium from the furnace to the mould or between vessels, covering both riser (stalk) tubes for low pressure die casting and launder transfer tubes. They are made in cast iron or in ceramics such as fused silica, aluminium titanate, silicon nitride and sialon, with flange designs to match the furnace. We source to your drawing and process temperature.
- Materials
- Cast iron, dense fused silica, aluminium titanate, silicon nitride, sialon
- Low pressure casting
- Gas pressure on the bath, typically 10 to 30 psi, pushes metal up the riser tube into the mould
- Flanges
- T-flange or bulk flange designs
In your plant
Where It Is Used
- Low pressure die casting machines (riser or stalk tube)
- Metal transfer between furnace and dosing or holding furnace
- Dosing furnace outlets
To quote, we need
Send Us These Data Points
With this information we can ask the right factories and come back with a proposal that fits your process. Missing something? Send what you have: we fill the gaps together.
Request a Quote Printable checklist to fill with your plant teamWe reply in English, Spanish, Italian or Chinese.
- Drawing with length, bore, wall and flange detail
- Machine or furnace model
- Preferred material, or current material and its service life
- Alloy and metal temperature
- Annual or monthly consumption
One supplier, one shipment
Often Quoted Together
Need something different? We adapt sizes, materials and specs to your drawing.
Buyer questions
Frequently Asked Questions
Cast iron or ceramic riser tube?
Cast iron is low cost and mechanically strong but can pick up iron into the melt; ceramics insulate better and last longer, at a higher unit cost. The right choice depends on your alloy limits for Fe and on handling practice.
Do ceramic tubes need preheating?
It depends on the ceramic: some grades are described as tolerant to thermal shock while others need controlled preheat. We confirm the requirement for the exact grade in the quote.
