Over 10,000+ customers' choice, Focus on screening industry 40+ years
Broken rice removal is the most critical requirement in rice screening. The Gaofu S49 series rotary vibrating sieve for rice achieves one feed, multi‑stage classification through multi‑deck screen configuration.
The equipment supports 1 to 5 screen decks. Taking the most typical three‑deck configuration in rice processing as an example:
Top deck (larger aperture): Retains whole grains and a small amount of large broken grains, ensuring uniform particle size of the finished whole‑grain rice.
Middle deck (target aperture): Separates medium broken grains and directs them to the broken rice collection system.
Bottom deck (smaller aperture): Removes fine broken rice and rice flour, further purifying the finished product.
Through precise mesh size configuration, the equipment can keep broken rice content within the limits required by national standards, ensuring that the finished rice meets the required grade.
Quick screen change design. Different rice varieties and grades require different mesh sizes. The Gaofu S49 series rotary vibrating sieve uses a mother‑child screen frame structure, allowing screen changes in just 3 to 5 minutes. The mother screen provides structural support, while the fine screen (working screen) performs the screening. When the fine screen wears out or a different mesh size is needed, only the fine screen needs to be replaced; the mother screen can be used for a long time. This design reduces consumable screen costs while shortening production line downtime.
Bran is the main light impurity generated during rice milling. Bran is light in weight and easily airborne, making it difficult to separate effectively on ordinary screening equipment, as it tends to be carried away by airflow.
The Gaofu S49 series rotary vibrating sieve for rice addresses the bran separation challenge through the following design features:
Fully enclosed sealed structure. The equipment has a fully enclosed chamber design with food‑grade silicone seals. During screening, bran dust is locked inside the equipment, preventing dust escape that would contaminate the workshop environment and preventing bran from being carried by airflow and re‑entering the finished product.
Provision of cleaning devices. Bran fibres tend to wrap around the mesh openings during screening. The equipment can be equipped with a bouncing ball cleaning system, in which balls continuously tap the screen cloth during screening, dislodging adhering bran and rice flour to keep the mesh clear.
Automatic impurity discharge. Impurities and oversize material automatically move along the screen surface to the reject port for discharge, enabling continuous operation without manual intervention, reducing operator labour intensity.
Stones, sand grains and other heavy impurities are among the most dangerous types of impurities in grain processing – they not only affect rice quality but can also damage downstream equipment such as rice mills and polishers.
The Gaofu S49 series rotary vibrating sieve for rice intercepts stones and other heavy impurities through precise screen mesh configuration and stable three‑dimensional vibration. The equipment's screen mesh range covers 1 to 500 mesh, allowing the selection of appropriate aperture sizes according to rice variety and impurity type. Stones and other heavy impurities, being larger than the mesh openings, are effectively intercepted on the screen surface and automatically move along the screen to the reject port for discharge.
For production lines requiring even higher impurity removal accuracy, the Gaofu rotary vibrating sieve for rice can be equipped with multi‑deck screens, enabling simultaneous classification, impurity removal and fine screening. One feed completes the multiple tasks of broken rice removal, bran separation and stone elimination.
Based on the general rotary vibrating sieve technology, the Gaofu S49 series rotary vibrating sieve for rice incorporates several specialised design features to meet the specific requirements of the grain processing industry:
Food‑grade stainless steel. Rice comes into direct contact with food, so the equipment material must meet clear hygiene requirements. Material‑contact parts are made of 304 stainless steel, with finely polished surfaces, no hygiene dead corners, and no material residue. For production lines requiring even higher cleanliness, 316L stainless steel is available. The equipment complies with food hygiene standards and is suitable for large‑scale continuous grain processing operations.
Low‑noise operation. Grain processing workshops typically run continuously, and equipment noise directly affects the operators' working environment. The Gaofu S49 series rotary vibrating sieve for rice uses a vertical vibration motor that provides smooth power output, low operating noise and reasonable energy consumption.
Compact structure for flexible deployment. The equipment has a compact structure and small footprint, requires no complex foundation installation, and can be moved flexibly. It can adapt to different grain processing line layouts, whether in new plants or retrofitted old workshops.
Continuous operation capability. The equipment can run 24 hours a day, continuously and stably, meeting the seasonal, large‑batch production characteristics of the grain processing industry. The equipment has a normal service life of 15 to 20 years, with controlled long‑term operating costs.
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.
