{"id":10331,"date":"2026-02-26T11:08:01","date_gmt":"2026-02-26T09:08:01","guid":{"rendered":"https:\/\/www.mom-packaging.com\/?p=10331"},"modified":"2026-07-23T15:23:26","modified_gmt":"2026-07-23T13:23:26","slug":"protein-powder-filling-machine","status":"publish","type":"post","link":"https:\/\/www.mom-packaging.com\/en\/protein-powder-filling-machine\/","title":{"rendered":"Protein powder filling machine"},"content":{"rendered":"

Protein powders: a wide range of types<\/h2>\n

Plant proteins vs animal proteins<\/h3>\n

A whey protein<\/strong><\/a>, a casein<\/strong><\/a>, and a plant protein<\/strong> (pea\/rice\/soy) do not behave the same way. Even with the same name, powders from two different suppliers can differ. These differences come from density<\/strong>, particle size distribution<\/strong>, and flow behavior<\/strong>.<\/p>\n

In practice, a plain whey protein powder may have a density of 0.54<\/strong>, while a whey protein from the same supplier, vanilla flavored, can have a density of 0.42<\/strong>.<\/p>\n

Proteins and blends<\/h3>\n

Proteins are often blended with other ingredients (flavors, vitamins, sweeteners, creatine, etc.). Sometimes a single additive is enough to make the powder stickier<\/strong>, dustier<\/strong>, or less stable<\/strong>. This is why dry protein formulations often have very different physical and chemical characteristics from one recipe to another.<\/p>\n

Powder vs micro-granulated: what the form really changes<\/h3>\n

A micro-granulated protein flows more easily. It may be less dusty than a very fine powder. Conversely, a fine powder may offer other benefits but can create cleanliness constraints during dosing.<\/p>\n

Which packaging formats are proteins packed in?<\/h2>\n

Proteins in jars<\/h3>\n

When proteins are packaged in jars, the dose typically ranges from 100 g to 2 kg<\/strong>. Jars are often plastic<\/strong>, rarely glass. Some jars can build up static electricity<\/strong> before filling; in that case, it is sensible to discharge the jar before filling the protein.<\/p>\n

Proteins in pouches<\/h3>\n

Proteins are also found in pouches. Flat-bottom pouches<\/strong> represent a significant share of protein packaging. Doses range from 100 g to 1 kg<\/strong>. Avoid powder in the sealing area. To do so, the dosing tooling must enter the pouch during filling.<\/p>\n

Proteins in bags<\/h3>\n

B2B protein suppliers sell large-volume formats, mostly bags<\/strong> in 20 kg and 25 kg<\/strong> sizes. Proteins are often less blended in these formats. The B2C customer may create blends to meet specific needs.<\/p>\n

Which protein powder filling machine?<\/h2>\n

Protein characteristics<\/h3>\n

Protein products are typically supplied either as fine powders or micro-granules. In powder form, proteins can be more or less dusty. Proteins can be moderately to very sticky. Finally, some protein powders tend to form lumps<\/strong>, which can be several centimeters across.<\/p>\n

Goal: clean and accurate dosing<\/h3>\n

Vibratory trough dosing generates a lot of fines, especially with dusty proteins.
Horizontal dosing is mainly used in process applications (big bags). For smaller doses, it will be very inaccurate.
Vertical auger dosing accurately doses both powder and micro-granules.
That is why it is the appropriate dosing technology<\/a> for packaging proteins.<\/p>\n

How to feed product<\/h2>\n

Keeping a constant product level in the hopper helps maximize dosing accuracy. For protein packaging, the choice of feeding technology depends on workshop organization. If proteins arrive at the same level as the doser, pneumatic conveying<\/strong> is effective. If proteins arrive from an upper floor, prefer gravity feeding<\/strong>.<\/p>\n

Trials and validation for a protein powder filling machine: what you must check<\/h2>\n

To secure your protein filling project, the most reliable approach is validation under real conditions: request to take part in tests<\/a> with your proteins in your packaging.<\/p>\n

These tests allow you to verify:<\/p>\n