Vibro Sifter Magnesium Oxide

Vibro Sifter Magnesium Oxide refers to the process of using a vibro sifter to grade and screen magnesium oxide powder. Magnesium oxide is a white alkaline refractory material with a high melting point (approximately 2852°C), excellent high-temperature resistance, and strong chemical stability. It comes in a variety of particle sizes, from coarse granules to ultrafine powders, and is widely used in pharmaceutical antacids, rubber fillers, and refractory materials. During vibratory screening, the mesh size typically ranges from 20-500 mesh (25μm-850μm) and is adjustable. The output varies depending on the sifter model, ranging from 0.5-2 tons/hour for small equipment to over 10 tons/hour for large equipment.

Magnesium oxide can be divided into light and heavy magnesia. Light magnesia is a loose powder with a typically finer particle size, which is prone to agglomeration and screen clogging during screening. It is primarily used in the chemical and pharmaceutical industries. Heavy magnesia, on the other hand, is a dense granular material with a relatively large particle size and is commonly used in refractory materials.

Vibro Sifter Magnesium Oxide Video Demonstration

Working Principle of the Vibro Sifter Magnesium Oxide

The Vibro Sifter Magnesium Oxide operates by using a motor-driven vibrator to generate high-frequency vibrations, causing the magnesium oxide powder to move in three dimensions (horizontally, vertically, and diagonally) on the screen. The process is as follows: The magnesium oxide powder first passes through the feed inlet and is evenly distributed on the screen surface. The vibration causes fine particles to pass through the screen, separating them while coarse particles continue to move forward. After classification, magnesium oxide of different particle sizes (such as ultrafine powder, standard powder, and coarse particles) is discharged from corresponding discharge ports. Some models are equipped with bouncing balls or ultrasonic screen cleaning devices to effectively prevent screen clogging and ensure continuous and stable screening.

Types of Equipment for the Vibro Sifter Magnesium Oxide

The equipment used for the Vibro Sifter Magnesium Oxide is typically made of 304/316 stainless steel to avoid contamination of the high-purity magnesium oxide. Common equipment types include horizontal cyclone screens, ultrasonic vibrating screens, linear vibrating screens, and rotary vibrating screens.

Horizontal cyclone screens: By combining airflow rotation with screen vibration, centrifugal force disperses magnesium oxide particles, achieving efficient separation, with fine powder quickly passing through the sieve (the mesh size is adjustable, typically 80-400 mesh) while coarse particles are discharged along the walls. Its enclosed design significantly reduces dust spillage from lightweight magnesium oxide. This equipment boasts a screening efficiency exceeding 95%, increasing throughput by 30% compared to traditional vibrating screens. Its anti-clogging properties make it particularly suitable for processing lightweight, dust-prone magnesium oxide.

Ultrasonic vibrating screens: They address the agglomeration and clogging issues of ultrafine powders above 500 mesh. For lightweight magnesium oxide with finer, more agglomerated particles, ultrasonic vibrating screens use high-frequency vibrations generated by an ultrasonic generator to keep the material loose, allowing it to pass smoothly through the screen, ensuring screening accuracy and yield.

Linear vibrating screens: Suitable for screening large-scale particles between 20-200 mesh and are used for industrial-grade magnesium oxide. If the particle size of heavy magnesium oxide falls within this range and the production process requires high output, a linear vibrating screen is an appropriate choice. Its linear reciprocating motion propels the material across the screen surface rapidly, enabling large-scale screening.

Rotary vibrating screens: When fine screening of heavy magnesium oxide is required and the particle size is between 100 and 500 mesh, a rotary vibrating screen can also be used. While its output is lower than that of a linear vibrating screen, its screening accuracy is higher.

Summary of the applicable functions of the above four types of equipment:

Impurity removal: Linear screens and rotary vibrating screens are commonly used to remove oversized particles or impurities.

Classification: Rotary vibrating screens and horizontal cyclone screens can perform multi-level particle size classification of powders.

Particle size control: Ultrasonic vibrating screens are most suitable, especially for fine powders or where a uniform particle size distribution is required (such as pharmaceutical-grade and fine chemical-grade MgO).

Vibro Sifter Magnesium Oxide Applications

Magnesium oxide sieved through the Vibro Sifter Magnesium Oxide can meet the high-purity, refined needs of pharmaceutical formulations, rubber reinforcing fillers, refractory high-temperature stabilizers, agricultural soil conditioners, and electronic insulation and thermal conductivity applications.

Pharmaceutical Industry: High-purity fine powder (≥325 mesh) is used in antacids and pharmaceutical excipients to ensure formulation uniformity and bioavailability.

Rubber/Plastics: Uniform particles (40-200 mesh) graded by the vibrating screen enhance mechanical properties, heat resistance, and aging resistance.

Refractory Materials: Coarse particles (20-100 mesh) offer excellent high-temperature stability and are suitable for high-temperature applications such as magnesia bricks and metallurgical furnace linings.

Agriculture: Magnesium oxide with a specific particle size (100-325 mesh) regulates soil pH, promotes crop nutrient absorption, and reduces dust pollution.

Electronic Materials: Ultrafine powders (submicron grade) are used in high-thermal conductivity fillers and precision ceramic substrates, improving the heat dissipation performance of electronic devices.

As a key step in magnesium oxide powder processing, the importance of the Vibro Sifter Magnesium Oxide continues to grow as its application areas expand. Through efficient particle size classification technology, it significantly improves product uniformity and purity, enabling customized production for diverse industries such as pharmaceuticals, industrial applications, and refractory materials. In terms of equipment selection, mainstream models such as rotary vibrating screens and ultrasonic screens each have their own advantages. Pharmaceutical-grade magnesium oxide production prefers fully enclosed machines with anti-contamination designs to ensure hygienic standards, while industrial applications prioritize high output and durability. A suitable vibrating screen can effectively optimize screening efficiency, thereby comprehensively improving the quality and application value of magnesium oxide products.