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Gaofu GMP‑Compliant Solid Beverage Feeding Station: Supporting Equipment for Powdered Beverage Processing Plants

Gaofu GMP‑Compliant Solid Beverage Feeding Station: Supporting Equipment for Powdered Beverage Processing Plants


  • GMP Compliance Challenges at the Solid Beverage Feeding Stage

Solid beverage production workshops are typically divided into different cleanliness zones: general work areas (raw material handling, storage), semi‑clean areas (batching/mixing), and clean areas (dry blending, inner packaging). The feeding stage, as a core operation in the raw material handling area, faces multiple challenges:


Dust dispersion affects workshop cleanliness. Milk powder, protein powder, and other fine, light powders readily become airborne during open‑bag dumping. Dust not only contaminates the workshop environment and equipment surfaces but can also migrate to semi‑clean or even clean areas, compromising the segregation between cleanliness zones and increasing the risk of microbial and foreign‑matter contamination.


Risk of material cross‑contamination. Solid beverage producers typically handle multiple product varieties and formulations. Without effective closed‑design and cleaning procedures at the feeding stage, cross‑contamination between different materials can directly impact product quality and regulatory compliance.


Raw material waste and cost pressure. Dust dispersion means direct material loss. In large‑scale production, the waste caused by dust at the feeding stage can be substantial, accumulating into significant costs over time.


High labour intensity and operator exposure. Traditional manual feeding requires operators to work in dusty environments – not only physically demanding, but also posing long‑term respiratory health risks.


  • How Gaofu's GMP‑Compliant Feeding Station Solves the Problems

Gaofu's solid beverage feeding station features a fully enclosed negative‑pressure structure that integrates negative‑pressure dust collection, vibrating screening, and intelligent control – systematically addressing dust and hygiene issues at the feeding source.


1. Fully enclosed negative‑pressure structure controls dust at source

The equipment maintains a slight negative pressure during operation. Operators cut and dump bags inside an enclosed feeding platform. Dust generated during dumping is directionally drawn by the negative‑pressure airflow into the filtration system – it does not escape from the feed opening. The fully enclosed structure effectively blocks dust dispersion pathways, physically ensuring cleanliness in the feeding area.


2. High‑efficiency filtration system with 99.9% dust collection efficiency

The equipment is equipped with a high‑efficiency dust collection fan and filtration system, achieving 99.9% dust collection efficiency and maintaining dust concentration at ≤0.1 mg/m³ during operation. This dust control level far exceeds typical clean workshop requirements, providing strong equipment‑level support for solid beverage producers seeking GMP certification.


3. Pulse‑jet reverse cleaning for sustained high efficiency

The system is equipped with a pulse‑jet dust collector that automatically cleans the filter elements at regular intervals. Collected dust is 100% recovered back into the hopper, with material loss controlled to ≤0.5% . This design ensures sustained filtration efficiency while minimising raw material waste.


4. Vibrating screening module – feeding and impurity removal in one step

A vibrating screening module (safety screen) is integrated inside the feeding station. As material is fed, it passes through the screen to intercept lumps, foreign matter, and impurities. This "feeding‑and‑screening‑in‑one" design ensures material purity at the source, eliminating the need for a separate screening step and reducing equipment investment.


5. Food‑grade stainless steel construction meets hygiene standards

The equipment body is made of 304 stainless steel (316L available on request), with product‑contact surfaces finely polished to be smooth, non‑stick, and easy to clean. The structural design has no dead corners, complying with GMP clean production standards for the food and pharmaceutical industries.


6. Intelligent controls reduce manual dependency

The equipment is equipped with a PLC intelligent control system supporting one‑touch start/stop, feed rate monitoring, and automatic filter cleaning. This automation not only reduces operator workload but also minimises contamination risks from manual handling.


  • Feeding Efficiency and Cost Improvements

While ensuring clean production, Gaofu's GMP‑compliant feeding station also delivers practical efficiency and cost benefits:


Significantly improved feeding efficiency. The equipment achieves a feeding rate of 500‑2,000 bags per hour – 3‑5 times faster than traditional manual feeding. For larger‑scale solid beverage producers, this improvement means the feeding stage no longer acts as a bottleneck.


Effective labour cost reduction. Automated feeding and intelligent controls reduce manual handling, cutting labour costs by over 60% . In addition, operators no longer work in dusty, physically demanding conditions – labour intensity is significantly reduced and the working environment is improved.


Material loss kept to a minimum. The fully enclosed negative‑pressure structure minimises spillage and waste; the pulse‑jet recovery system returns 100% of collected dust to the hopper, keeping material loss at ≤0.5%.


  • Integration with Downstream Equipment for Complete Production Lines

Gaofu's feeding station is not a standalone unit – it is a key component of the complete production line. The outlet can be connected to positive‑ or negative‑pressure conveying systems for continuous material supply to the production line. After feeding and screening, material is transferred directly through enclosed pipelines to downstream equipment such as mixers or packaging machines, achieving fully enclosed material handling from feeding to conveying. This design reduces material exposure and contamination risks during transfers between equipment, and supports production line automation upgrades.


  • Technical Parameters
ModelWind pressureScreening areaPower(kW)Speed(r·p·m)Dynamic loadStatic loadVibrating force(kN)Flow
GF-8001217-16410.422*0.181460800N1500N2.5*21550-997
GF-10001217-16410.642*0.251460500N2500N5*21550-997


About Gaofu Machinery

Xinxiang Gaofu Machinery Co., Ltd. was originally founded in the 1980s. After more than 40 years of development, the company has become a "National Specialized and Sophisticated 'Little Giant' Enterprise", a "National Green Factory", a "National High-tech Enterprise", a "National Intellectual Property Advantage Enterprise", and the "President Unit of the Vibration Association". It also hosts the "Henan Provincial Industrial Design Center", the "Henan Provincial Engineering Technology Research Center for Intelligent Online Screening Systems", and the "Xinxiang Municipal Engineering Technology Research Center for Fine Screening". The company has been granted more than 500 invention, utility model and design patents, has received the "Science and Technology Achievement Award" issued by the Ministry of Industry and Information Technology, and has participated in drafting four "National Standards".


Gaofu's product portfolio covers several series and hundreds of varieties, including vibrating screening equipment, conveying equipment, and automated material handling systems. Its main products include one-stop solutions such as automatic feeding systems, powder feeding systems, pneumatic conveying systems, weighing and batching systems, minor ingredient batching systems, water supply systems, oil supply systems, fluid conveying systems, central kitchen powder feeding systems, powder conveying systems, and top-loading feeding systems. The food system production lines mainly include:

Bakery production lines: bread production line, cake production line, shortbread production line, croissant production line, toast production line, pizza production line, biscuit production line, hamburger production line;

Dough product production lines: steamed bun production line, stuffed bun production line, twisted roll production line, sesame paste baked bun production line, steamed dumpling production line, dumpling production line, youtiao (fried dough stick) production line, stuffed pancake production line.


Gaofu products are not only popular in Greater China but are also exported to more than 100 countries and regions, including Russia, Canada, the United States, New Zealand, Japan, Brazil, South Africa, etc. They are widely used in many industries such as food, pharmaceuticals, chemicals, metallurgy, building materials, mining, thermal power, and environmental protection, earning the trust and praise of over 10,000 customers worldwide. The company adheres to its mission: "Enhance material quality and efficiency, meet customer needs", walking side by side with customers for harmonious and win-win cooperation. Today, Gaofu has become an approved supplier to many Fortune 500 companies, including CNPC, Sinopec, Sinochem Group, China Resources Group, Sinopharm Group, COFCO Group, China National Building Material Group, China Aerospace, and Jinchuan Group.

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