Your Authentic Cation Exchange Resin Manufacturer & Supplier

NEWater has earned the respect of many when it comes to the manufacture of ion exchange systems. Our resins are highly adaptable, they can be personalized to meet different needs.

NEWater: Leading Cation Exchange Resin Supplier in China

A cation exchange resin is a type of ion exchange resin that is designed to expel positively charged ions (cations) from a solution such as water. These resins are typically made from a cross-linked polymer matrix that has been functionalized with groups that attract cations.

When a solution containing cations, such as calcium (Ca2+) or sodium (Na+), is added to a cation exchange resin, the resin exchanges the cations with other positively charged ions that are linked to the resin, primarily hydrogen (H+). Cation exchange resins are a key part of ion exchange systems and NEWater can promise to provide the best ion exchange resins on the market.

Why Pick NEWater’s Cation Exchange Resins?

Up to 99.9% Hardness Removal
High pH Tolerance
Automatic Regeneration
Selective Ion Removal

NEWater Cation Exchange Resin Features

  • They consist of a cross-linked polymer matrix.
  • They have negatively charged functional sites or groups.
  • Primarily, they swap impurity cations with hydrogen (H+) ions.
  • Water-softening cationic resins are often charged with sodium (Na+) ions.
  • For regeneration, an acidic solution is needed e.g. hydrochloric acid.
  • They can be tailored to selectively eject impurity ions.
cationic Exchange Resins features
cationic Exchange Resins applications

NEWater Cation Exchange Resin Applications


● Selective Ion Exchange.

The NEWater cation resin is highly selective and can be uniquely programmed to expel specific ions as per the application’s demands.

● Fast Kinetics.

Equipped with a fast and efficient ion exchange rate, the NEWater cation exchange resins can hastily eject unwanted ions thereby optimizing performance.

● Regenerable.

Upon deterioration of the NEWater’s cationic resin exchange capacity, automatic regeneration can be initiated allowing for multiple re-use opportunities.

● High Exchange Capacity.

The NEWater cation resin has high porosity and a large surface area, which translates into a high capacity for extracting objectionable ions.

cationic Exchange Resins advantages

NEWater, The Most Reliable Cation Exchange Resin Manufacturer

Ion Exchange Resin Supplier
Ion Exchange Resin Manufacturer

NEWater is widely considered to be the most reliable manufacturer of cation exchange resins due to its unmatched expertise and decades of experience in the field. We have a proven track record of producing high-quality, reliable resins that meet the diverse needs of our customers.

Our commitment to quality is reflected in our state-of-the-art manufacturing facilities and rigorous quality control procedures, which ensure that each batch of resin is consistent and meets the highest standards of purity and performance. Moreover, our team of experienced engineers is working tirelessly to develop innovative new resins that can address even the most complex separation challenges.

Name Specification
Appearance Pale yellow opaque spherical beads
Ionic Form Na+
Weight Exchange Capacity ≥4.5mmol/g
Volume Exchange Capacity ≥1.9mmol/ml
Real Density (g/ml) 1.10~1.18g/ml
Bulk Density (g/ml) 0.70~0.80g/ml
Water Retention Capacity 55%~65%
Particle Size Range 0.315~1.25 mm≥95
Uniformity Coefficient ≤1.6
Whole Bead Count(%) ≥95%
  • NEWater is a trustworthy and reliable manufacturer of cation exchange resins. Very pleasant to work with.


  • I think NEWater is the first choice for demanding ion exchange resins.

  • I am very satisfied with the price and quality of these resins. The shipping was also fast.


Frequently Asked Questions

The complex chemistry and technical jargon associated with cation resins can be intimidating for beginners. Beneath, we will answer some of the most pressing questions on cation exchange resins to provide a comprehensive understanding of their properties and applications.

cationic Exchange Resin

1. What is the Role of Cation Exchange Resins?

In water treatment, cationic resins are primarily used to extract or minimize water hardness by ejecting hardness minerals. Water-softening cation exchange resins are typically charged with sodium ions and in some rare occurrences potassium ions. Anion exchange resins, which remove anionic impurity ions, are used in conjunction with deionization cation resins, which are primarily charged with hydrogen ions.

2. What is the Working Principle of Cationic Resins?

Cation resins generally get rid of contaminant cations by exchanging them for more objectionable cations. The exchange process is initiated by the negatively charged functional sites, which draw the positively charged impurity ions thereby facilitating the ion exchange process. As such, they are broadly utilized to expel water hardness or yield demineralized water with the help of anionic resins.

cationic Exchange Resin work flow

3. Are There Different Types of Cation Exchange Resins?

Yes. Cation resins are mainly divided into two; strong acid and weak acid cationic resins. Strong acid cation resins are recharged with heavy-duty acid solutions and they are primarily used in water softening and split-stream demineralization. HCL or sulfuric acid is frequently used to rejuvenate weak acid cation resins, which extract momentary hardness.

4. Cation Exchange Resins VS Anion Exchange Resins: What is the Difference?

Anion and cation resin exchangers are the two variations of resins employed during deionization or the ion exchange process. Although they are often employed in tandem, they vary greatly in terms of the charged ions present as well as the types of impurity ions swapped out. Whereas the anionic resin expels and substitutes pollutant anions like chloride with hydroxyl, cation resins expel and replace impurity cations like calcium with hydrogen or sodium ions.

Cation Exchange Resin

5. What Parameters Need to be Considered When Purchasing Cation Exchange Resins?

● Capacity.

The capacity of a cation exchange resin is typically measured in terms of its exchange capacity, which is the amount of ion-exchange sites per unit weight of the resin.

● Selectivity.

This refers to the resin’s preference for a particular type of positively charged ions. Some cation exchange resins are designed to remove only certain types of ions and therefore affect treatment effectiveness, while others are more general and can remove a wide range of ions.

● Operating pH Range.

The effectiveness of cation exchange resins can vary depending on the pH of the liquid being treated. Some resins are more effective at lower pH values, while others work best at higher pH values.

● Flow Rate.

The rate at which raw water flows through the ion exchange resin affects the ability of the resin to effectively remove ions and also affects the efficiency of the regeneration process.

● Bead size and Uniformity.

The NEWater cation exchange resin is typically sold in the form of small beads or pellets. The size and uniformity of these beads impact the resin’s effectiveness and its ability to be packed tightly in a column or other container.

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