The target up to 99.995% is reviewed only against a concrete RFQ.
Technology page
Secondary segregation as the technical barrier behind high-purity aluminium
HUABO presents secondary segregation as the decisive second process stage behind stable high-purity output. This page turns that process logic, target purity range, and Europe-facing sourcing relevance into a standalone URL.
2nd segregation stage
3N8 / 4N
4N5 project review only
Directional solidification
30,000 t/year planned
The process capability supports the published day-to-day product positioning for 3N8 and 4N.
Stated current capacity is 5,000 t/year; this is not actual output or guaranteed availability.
Relevant for technical pre-qualification, purity discussions, and process-confidence in inquiries.
Process chain
How secondary segregation fits into the HUABO production route
Secondary segregation is not an isolated machine step. It sits inside a wider route that runs from primary material through refining to batch release.
01
Raw material
3N purity electrolytic primary aluminium from hydropower smelters in the Guangyuan region.
02
Refining & filtration
25t melting furnace, impurity removal, online filtration, and crucible preparation.
03
Primary segregation
Horizontal continuous rotation segregation as the first purification stage for the 3N2-4N product logic.
04
Secondary segregation
Second segregation stage for deeper impurity separation and stable high-purity output.
05
Casting & analysis
Casting into 8-20 kg ingots with batch-based chemical analysis and release review.
06
Packaging & export
Coding, packaging, and export coordination supported through the Germany-based first contact.
Secondary segregation as core capability
HUABO describes the second segregation stage as part of the process route for 3N8 and 4N. A target up to 4N5 or 99.995% is reviewed only against the project RFQ.
Sourcing relevance
For Europe-based buyers, this page explains why HUABO does not only name purity grades, but also names the process capability behind them.
Technology FAQ
Common questions about secondary segregation
The answers below are written for technical pre-qualification and process-confidence in sourcing workflows.
What does secondary segregation mean at HUABO?
HUABO presents secondary segregation as the second purification stage inside its multi-stage segregation route for high-purity aluminium.
Which purity levels are connected to this process step?
HUABO links secondary segregation to the standard grades 3N8 and 4N. A target up to 4N5 or 99.995% requires project-specific feasibility review.
How does secondary segregation fit into the production line?
The route includes 3N primary aluminium, refining, online filtration, primary segregation, secondary segregation, and then casting plus batch analysis.
Why is this page relevant for German buyers?
It helps procurement and quality teams understand the process basis behind HUABO purity grades when evaluating suppliers for RFQs and qualification.
Related pages
Connect process capability with product grades and evidence
These internal links connect technology, product positioning, and qualification documents into one cluster.
3N2 product page
3N2 batch data and positioning as the documented entry point to the high-purity portfolio.
Open 3N2 page3N5 product page
3N5 as the mid-level high-purity grade between 3N2 and 3N8/4N.
Open 3N5 page4N product page
4N batch values and positioning for tighter purity targets.
Open 4N pageISO certifications
ISO 9001 and ISO 45001 as management-system evidence for qualification and approval.
Open ISO pageContact
Technical discussion on segregation capability
RFQ, supplier qualification, and process questions through your Germany-based representative.
Sales Representative
Felix Zhao
Mobile: +4915906479598
Email: felix.zhao@huabo-alu.de
Response timing depends on the completeness and technical scope of the inquiry.