Over 10,000+ customers' choice, Focus on screening industry 40+ years
The Gaofu starch ultrasonic vibrating sieve is not simply an ordinary vibrating screen with an added component – it integrates a complete ultrasonic cleaning system into the conventional rotary vibrating sieve.
The equipment converts 220V, 50Hz electrical energy into high‑frequency mechanical energy of 18KHz‑40KHz. A transducer converts the high‑frequency electrical signal into mechanical vibration of the same frequency, uniformly transmitted to the screen surface. The screen itself vibrates at tens of thousands of times per second with low amplitude.
The synergistic effect of the dual vibration force field:
First – macroscopic three‑dimensional gyratory vibration. The vertical vibration motor at the base generates compound vibration in horizontal, vertical and tilting directions, driving the material in a spiral‑diffusion motion on the screen surface to complete basic particle stratification and conveying.
Second – microscopic high‑frequency ultrasonic vibration. The screen itself is superimposed with low‑amplitude, high‑frequency ultrasonic vibration waves (mechanical waves), subjecting ultra‑fine powders to a high ultrasonic acceleration.
The combined effect of the two vibrations is that the material simultaneously undergoes three‑dimensional gyratory motion and high‑frequency micro‑vibration on the screen surface, effectively breaking down powder agglomerates, reducing electrostatic adhesion, and preventing fine particles from blocking the mesh openings. The material remains in a suspended state on the screen surface, thereby suppressing blinding factors such as adhesion, friction, wedging and lodging.
For the three main causes of screen blinding in high‑mesh starch screening – electrostatic adhesion, moisture‑induced agglomeration and fine powder adhesion – the ultrasonic vibrating sieve provides corresponding solutions:
Destroys static electricity and agglomeration. The high‑frequency micro‑vibration generated on the screen effectively breaks down the agglomeration caused by electrostatic adhesion, allowing fine powder to pass through the screen freely. The high‑frequency micro‑vibration continuously disrupts the electrostatic attraction between particles, dispersing starch lumps into individual particles, each with an independent opportunity to pass through the mesh.
Self‑cleaning to prevent blinding. The high‑frequency vibration keeps the screen in a constant “trembling” state, preventing starch from adhering to the mesh openings. The root cause of blinding in traditional vibrating screens is that once material adheres to the mesh, there is no external force to remove it. The high‑frequency micro‑vibration of the ultrasonic vibrating sieve keeps the screen surface in constant microscopic motion, so adhering starch cannot settle on the mesh, and the openings remain clear.
Does not alter material characteristics. The ultrasonic vibrating sieve achieves screening through high‑frequency micro‑vibration without changing the original physical and chemical properties of the starch. Key indicators such as gelatinisation temperature, viscosity and transparency are not affected during screening.
1. Solves screen blinding for ultra‑fine screening above 500 mesh. Ordinary vibrating screens begin to blind frequently above 200 mesh and are almost unable to run continuously above 500 mesh. The Gaofu ultrasonic vibrating sieve keeps the screen in a constant "trembling" state through high‑frequency ultrasonic vibration, effectively solving the blinding problem for screening above 500 mesh. Whether it is fine classification at 200 mesh or ultra‑fine powder screening above 500 mesh, continuous stable operation is achieved.
2. Increased throughput and continuous operation. By solving the blinding problem, the equipment can operate continuously, with throughput 2 to 10 times that of ordinary screens. The frequent stoppages for cleaning caused by blinding are eliminated, and the effective running time of the production line is greatly extended. For starch processors that require 24‑hour continuous production, this means full release of capacity.
3. Food‑grade materials for hygiene and safety. Material‑contact parts are made of food‑grade 304 stainless steel, with a fully enclosed structure, no dust escape, and compliance with food and pharmaceutical hygiene standards. For production lines requiring even higher cleanliness, 316L stainless steel is available. The fully enclosed structure also effectively prevents dust escape and cross‑contamination during screening.
4. High screening accuracy and yield. For high‑value modified starches, ultrasonic screening significantly improves the recovery rate of active ingredients. Practical applications show that compared with traditional screening, the passage rate can be greatly increased, effectively reducing production losses.
5. Multi‑deck classification – one feed, multiple fractions. The equipment supports 1 to 5 screen decks, allowing a single feed to complete multiple steps simultaneously – coarse screening removes fibre and lumps, fine screening achieves precise starch classification, and ultra‑fine powder is discharged from the bottom deck.
The Gaofu S49‑AC series starch ultrasonic vibrating sieve is suitable for the following starch and ultra‑fine powder screening applications:
High‑mesh screening of modified starches. Modified starches such as tapioca modified starch and hydroxypropyl starch typically have small particle sizes (often above 500 mesh) and are hygroscopic and prone to agglomeration. The ultrasonic vibrating sieve is an effective solution for screen blinding with these materials.
Fine classification of corn starch and potato starch. Conventional screening ranges from 80 to 200 mesh, with some premium products requiring screening to 300 mesh or finer. The ultrasonic vibrating sieve maintains stable screening accuracy in the high‑mesh range, ensuring uniform finished particle size.
Ultra‑fine screening of food additives. Ultra‑fine screening of sugar powder, flavouring powders and other food additives also faces electrostatic adhesion and blinding problems. The ultrasonic vibrating sieve effectively solves these screening difficulties.
Screening of pharmaceutical excipients. The screening of pharmaceutical starch, microcrystalline cellulose and other excipients requires higher material and cleanliness standards. The food‑grade stainless steel and fully enclosed structure of the ultrasonic vibrating sieve meet the hygiene standards of the pharmaceutical industry.
Application Value
From the perspective of actual production conditions in starch processing, the Gaofu S49‑AC series ultrasonic vibrating sieve delivers value in four dimensions:
Accuracy value – Stable screening accuracy at high mesh sizes ensures uniform finished particle size, meeting the quality standards of different starch grades.
Efficiency value – The blinding problem is effectively solved, allowing continuous operation with throughput 2 to 10 times that of ordinary screens. The production line no longer needs to stop frequently because of blinding, and overall capacity is fully utilised.
Quality value – Electrostatic agglomeration is effectively broken down, starch particles remain in an independent dispersed state, and the screening process does not alter material characteristics. The purity and fineness uniformity of the finished product are reliably assured.
Compliance value – Food‑grade stainless steel and the fully enclosed structure ensure that the equipment meets the hygiene requirements of food GMP and HACCP systems, helping enterprises present a more convincing compliance record during food safety audits and factory inspections.
About Gaofu
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, coal crushing equipment, filtration equipment, and automated material handling systems. Its main products include vibrating screens, screening machines, vibrating sifters, rotary vibrating screens, ultrasonic vibrating screens, linear screens, air flow screens, gyratory screens, roller screens, dewatering screens, bar screens, vacuum feeders, dust-free feeding stations, ton bag feeding stations, feeding systems, automatic powder feeding systems, automatic slag discharge filters, leaf filters, clay filters, toothed roll crushers, coal crushers, and other equipment. These 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.
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. 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.
Gaofu Machinery – Global No.1 in Vibrating Screen Sales. In May 2024, Frost & Sullivan, an international authoritative advisory firm, based on its research on the global vibrating screen market and calculated according to global vibrating screen sales volume in 2023, issued a market position confirmation certificate to Gaofu Machinery.
