Zeolite 4A

Zeolite 4A is a synthetically produced zeolite, which is perfect for binding calcium and is registered as a technological additive (E554) under the subgroup binders, anti-caking agents and coagulants. The product is a white fine powder with a porous structure.

This product has a strong affinity for calcium. For this reason, this product is mainly used to initiate the vitamin-D-dependent mechanism in heavily pregnant cows, which results in an ideal calcium balance around the time of calving. This results in the release of calcium prior to calving and makes the calcium from the feed available after calving. The product also has a preventive effect against milk fever and ketosis. 

ProductZeolite 4A
Type4A Synthetic
Registration numberE554
Pellet binder-
Taste enhancer-
Gastrointestinal retarder-
Free-flowing agent-
Toxin control++
NH4+ binding+++
Calcium Binder+++++

Poortershaven: Know-how

Poortershaven continuously develops new applications for the use of clay and rock minerals in the agricultural sector. This has resulted in well-known and frequently used products for animal health, soil improvement and animal bedding hygiene.

The colour of the products may differ in real life, due to the sharpness and screen settings. If desired, we would be happy to send a sample.

Broad product portfolio

Poortershaven offers a wide range of products. This means that within a product range you will always find a form that suits the intended use and/or technical installation.

Continuously innovating

We collaborate with universities and research institutes, among others, to test our products and their applications and to generate knowledge about optimal use.

Product knowledge

Through long-term relationships with our suppliers, we supply reliable and stable products. Along with our suppliers, we have a lot of in-house specialist product knowledge.


We know our products and would be happy to get in touch with you. We are happy to share our knowledge about our products with you, enabling us to jointly find an appropriate solution for your problem.


If you have any questions about our range, prices or current stock, if you would like advice, or if you would simply like to touch base with us, please contact us.

We look forward to assisting you.

Obtain immediate adviceObtain immediate adviceand personal

For more information and current prices, please feel free to contact one of our employees.

Call +31(0)10 4365755 or mail info@poortershaven.nl