{"id":6270,"date":"2026-09-29T02:32:49","date_gmt":"2026-09-29T02:32:49","guid":{"rendered":"https:\/\/yuanjingmachinery.com\/?p=6270"},"modified":"2026-09-29T03:53:52","modified_gmt":"2026-09-29T03:53:52","slug":"vitamin-c-powder-screening","status":"publish","type":"post","link":"https:\/\/yuanjingmachinery.com\/es\/case-studies\/vitamin-c-powder-screening\/","title":{"rendered":"Vitamin C Powder Screening: An Australian Customer Case Study"},"content":{"rendered":"

Descripci\u00f3n general del proyecto<\/h2>\n\n\n\n

An Australian vitamin manufacturer contacted us about a vitamin C powder screening project aimed at improving impurity removal before downstream processing. The customer needed a solution that could support its production schedule while addressing mesh blockage, inconsistent screening performance, and manual cleaning requirements.<\/p>\n\n\n\n

During our discussions, the customer also highlighted the importance of dust containment, easy cleaning, and protecting raw material quality. These requirements helped define the equipment selection: a circular tumbler screen equipped with an ultrasonic system.<\/p>\n\n\n\n

\"Vitamin<\/figure>\n\n\n\n

Customer Requirements and Screening Challenges<\/h2>\n\n\n\n

Clarifying the Screening Objective<\/h3>\n\n\n\n

The customer\u2019s primary objective was impurity removal rather than separating the powder into several particle-size grades. Acceptable vitamin C powder needed to pass through the mesh, while oversized particles and impurities larger than the screen openings were retained.<\/p>\n\n\n\n

The specified screening requirement was 100 mesh, with a target throughput of 1,500 kg\/h. This made both separation performance and continuous handling capacity central to the project.<\/p>\n\n\n\n

Addressing Mesh Blinding<\/h3>\n\n\n\n

Fine powder can adhere to the mesh or block screen openings, reducing the available screening area. As the mesh becomes obstructed, powder passes through more slowly, potentially increasing cleaning interruptions and operator involvement.<\/p>\n\n\n\n

The customer specifically requested an ultrasonic system to help address this issue. This requirement made anti-blinding performance an important part of the equipment selection, alongside screen diameter and throughput.<\/p>\n\n\n\n

For background on this challenge, see our guide to screen clogging causes and prevention<\/a>.<\/p>\n\n\n\n

Considering Cleanliness and Product Quality<\/h3>\n\n\n\n

The customer also raised concerns about vitamin C\u2019s sensitivity to light, heat, and oxygen. Its requirements therefore included good sealing, convenient cleaning, and minimizing unnecessary material exposure during screening.<\/p>\n\n\n\n

These considerations extended beyond machine capacity. Equipment access, material residue, and the screening machine\u2019s connection to the surrounding production process also needed attention.<\/p>\n\n\n\n

Our Solution: An 1800 mm Ultrasonic Tumbler Screen<\/h2>\n\n\n\n

After reviewing the customer\u2019s stated requirements, we selected an 1800 mm <\/strong>criba tumbler ultras\u00f3nica<\/strong><\/a> for the application.<\/p>\n\n\n\n

The solution combined a large screening surface with ultrasonic assistance to support fine powder passage and reduce the effects of mesh blinding.<\/p>\n\n\n\n

Matching Screen Size to the Throughput Requirement<\/h3>\n\n\n\n

The 1800 mm size was selected for the customer\u2019s target processing requirement of 1,500 kg\/h.<\/p>\n\n\n\n

Its screening surface provides space for powder distribution and contact with the mesh. The tumbling motion moves material across the screen, allowing acceptable particles to pass through while directing retained material toward the oversize outlet.<\/p>\n\n\n\n

Uniform feeding remains important. Feed rate and material distribution must be matched to screening performance to avoid localized buildup and make effective use of the screen area.<\/p>\n\n\n\n

Adding Ultrasonic Assistance<\/h3>\n\n\n\n

As requested by the customer, the machine was equipped with an ultrasonic system to help reduce particle adhesion and blocked openings.<\/p>\n\n\n\n

The two functions work together: the tumbler motion distributes and conveys the powder, while ultrasonic excitation assists in maintaining mesh permeability. This combination was selected to reduce the disruption that mesh blinding can cause during vitamin C powder sieving.<\/p>\n\n\n\n

Focusing on Impurity Removal<\/h3>\n\n\n\n

Because this application was intended for impurity removal, the operating priority was to allow acceptable powder to pass through efficiently while discharging retained oversize material.<\/p>\n\n\n\n

Feed rate, material movement, and residence time need to be balanced for this purpose. Increasing the feed rate alone does not necessarily improve usable throughput if powder begins to accumulate on the mesh.<\/p>\n\n\n\n

Actual processing capacity depends on material properties and operating conditions, including particle-size distribution, moisture content, bulk density, and the proportion of oversize material.<\/p>\n\n\n\n

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