Over the past two years, AI, new energy, and semiconductors have exploded in popularity.

NVIDIA’s market capitalization has surged, and AI server production is expanding rapidly; photovoltaic silver paste continues to evolve; demand for nano‑copper powder, silver powder, silicon micro‑powder, and CMP polishing powder is skyrocketing.

In particular, by 2026, as AI data centers, high-frequency and high-speed CCLs, and advanced packaging continue to experience rapid growth, high-end powder materials have become one of the most critical competitive differentiators across the industry chain.  

But many people haven’t noticed:

What truly determines the yield and profitability of a powder‑processing company is often not “front‑end milling,” but rather the final process step that is all too easily overlooked—

Solid–liquid separation and wash filtration.

Many nanomaterials companies have encountered similar issues:

• Powder filtration is too slow, causing the production line to stall.
• The nanoparticle filter is severely clogged.
• It cannot be cleaned thoroughly, and the conductivity cannot be reduced.
• Copper powder oxidizes as soon as it is filtered;
• Silver powder agglomeration leads to uncontrolled particle size;
• The filter cake has a high moisture content, causing a sharp increase in downstream drying costs.
• The filter cloth has a short lifespan, requiring daily replacement and machine downtime.
• Batch-to-batch stability is poor, and customer complaints are persistent.

In the end, it was discovered:

The lab works, the pilot scale succeeds, but as soon as it hits mass production, everything falls apart.

Why?

This is because many companies underestimate the challenges of filtering nanoscale and micron-sized powders.  

Why is nanoscale powder filtration tens of times more challenging than conventional filtration?

Traditional mine filtration features large particle sizes and a coarse, unrefined system.

However, nanoscale micronized powder is entirely different.

Taking the current hot topics:

• Nano silver powder
• Nano copper powder
• Spherical silica micro-powder
• Semiconductor CMP polishing powder
• Lithium-ion battery positive and negative electrode slurry
• MLCC electronic paste
• Photovoltaic conductive paste

For example, their particles often already reach the micrometer or even nanometer scale.

What does this mean?

Means:

“Filtration” is no longer merely dewatering; it has become a materials engineering discipline.

Because the finer the particles:

• The larger the specific surface area
• The higher the surface energy
• The stronger the risk of reunion
• The cake resistance increases exponentially.

In particular, many new-materials companies are moving toward:

• Finer particle size
• Higher purity
• Lower impurities
• Narrower particle size distribution

Develop in the direction.

At this point, traditional filtration equipment often appears:

“Laboratory-scale filtration is feasible, but industrial-scale operation simply can’t keep up.”

In the AI era, why has nano‑copper powder suddenly become so popular?

Recently, a very clear trend has emerged in the industry:

“Silver reduction.”

As silver prices continue to rise, electronic materials companies are seeking alternative solutions.

Meanwhile, nano-copper powder is emerging as a hot topic.

Especially:

• AI Advanced Packaging
• High-end conductive paste
• Semiconductor Interconnect
• New Energy Electronic Materials

Field.

Many companies are shifting from the “silver powder route” to the “copper powder route.”

However, copper powder has a critical drawback:

Highly susceptible to oxidation.

Many customers produce copper powder that:

The initial metrics were excellent, but the product was scrapped outright during the filtration and washing stage.

Because:

• Oxygen exposure is poorly controlled;
• Low washing efficiency;
• Excessive residual ions;
• Agglomeration occurs during the drying process.

Ultimately, the product’s electrical conductivity decreases directly.

This is also why:

An increasing number of companies are once again placing a high priority on “filtration equipment.”  

Why are more and more companies turning to next-generation nanomicro‑powder filtration systems?

This is because conventional filter presses, centrifuges, and standard vacuum filtration equipment can no longer adequately meet the demands of the new materials industry.

Especially when facing:

• Nanometer-scale particles
• High-value-added powder
• Oxidizable system
• High-purity washing
• Precision slurry

At that time, traditional equipment was widely prevalent:

• Slow filtration rate
• Running material
• Reunion
• Inadequate washing
• Insufficient automation
• High human dependency

and other issues.

Meanwhile, the new nano‑micropowder filtration machine fundamentally addresses:

“High-precision continuous and stable filtration of powders.”

It is particularly advantageous in the following areas:

1. High-efficiency retention of nanoparticles

The biggest challenge with many nanopowders is:

It’s not about filtering; it’s about “filtering quickly without losing material.”

The new nanomicro‑powder filtration machine, with its specially designed filtration structure tailored to the filter media, can effectively enhance its ability to capture fine particles.

Especially suitable for:

• Submicron powder
• Nanometal powder
• High-purity electronic materials

Operating conditions.

2. More thorough cleaning

Many electronic materials customers are particularly concerned about:

“Can the electrical conductivity be reduced to nearly zero?”

Because this is directly related to:

• Residual impurities
• Product purity
• Electrical conductivity
• Sintering performance

Meanwhile, traditional equipment often suffers from:

“It looks clean, but there’s still a lot left inside.”

The new nano‑micro powder filtration machine can achieve:

• Multi-stage continuous washing
• More uniform distribution of the washing solution
• Lower residual liquid retention

Especially suitable for:

High-purity materials such as silver powder, copper powder, and electronic pastes.

3. Reduce the risk of agglomeration

Many nanomaterials are most vulnerable to:

“Great job up front, but we all fell apart at the back.”

Especially:

• Nano copper powder
• Nano silver powder
• Silica fume
• Conductive paste

Agglomeration is most likely to occur during the filtration stage.

And once reunited:

The particle size distribution is directly out of control.

The new nano‑ and micro‑powder filtration machine, by employing low‑disturbance filtration, stable cake formation, and continuous control, can effectively mitigate the risk of material agglomeration.

4. More suitable for continuous production

The future of the new materials industry will certainly be:

Continuous operation + automation + intelligence.

Because:

AI, new energy, and semiconductors are all ramping up production at a rapid pace.

The industry has moved beyond the “pilot‑scale era” and entered the “mass‑production era.”

This means:

The filtration equipment must be stable.

Otherwise:

If a production line is down for several hours, the losses could amount to hundreds of thousands.

The electrical conductivity of nano-copper powder is washed down to zero.

Over the next three years, whoever can solve the challenge of “powder filtration” will be poised to reap the benefits of the new materials boom.

Now the industry is becoming increasingly clear:

Truly high‑profit companies don’t compete on whether or not they have a customer base.

Rather:

“Can we achieve stable mass production of high-quality powders?”

In particular:

• Semiconductor materials
• AI electronic materials
• Nanometal powder
• New energy battery materials
• High-end conductive paste

These industries are placing increasingly stringent demands on filtration.

In the past, many companies treated filtration as a “supporting process.”

Now we are beginning to discover:

Filtration is one of the core processes that determine product consistency.  

Xia Dias: We’re not just doing filtration—we’re driving “powder yield engineering.”

Xiamen Citius Filtration Materials Technology Co., Ltd. has been dedicated to the industrial filtration sector for 30 years.

In addition to traditional industrial filter cloths and filter mesh belts, the company has also been steadily expanding its footprint in recent years:

New-type nanomicro-powder filtration equipment.

Key target audience:

• Nanometal powders
• Semiconductor materials
• Silver powder, copper powder
• Electronic paste
• New energy materials
• Fine Chemicals

and other industries.

What many customers really need is no longer a single piece of equipment.

Rather:

A comprehensive solution “from filtration media to filtration processes.”

Because for the nanomaterials industry:

Filtration has never been merely about dewatering.  

Rather:

Yield,

Purity,

Particle size,

Stability,

Cost control.

It even determines whether a company can gain access to the high-end supply chain.

In the next round of competition in new materials, it’s not just the materials themselves that will be at stake.

Moreover, who will be the first to solve “industrial-scale filtration of nano‑ and micro‑powders”?