Welcome: Yiwu Weihao Machinery Equipment Company
As a leading manufacturer of industrial crystallization equipment, Yiwu Weihao Machinery Equipment Company specializes in designing and manufacturing high-efficiency OSLO crystallizers, a professional classifying crystallizer widely used in industrial continuous crystallization. Our OSLO crystallizers adopt the unique "crystallization + classification" integrated design, which can produce uniform, large-grain crystals with high purity, solving the problem of crystal agglomeration and uneven particle size in traditional crystallization, and are widely applied in chemical, salt production, pharmaceutical, and environmental protection industries.
The OSLO crystallizer is divided into two main types: cooling OSLO crystallizer and evaporative OSLO crystallizer, both based on the core principle of classification crystallization. The working process is as follows: 1. The supersaturated feed liquid is fed into the crystallizer’s upper circulation pipe and evenly distributed into the crystallization zone. 2. The crystal slurry flows downward through the crystallization zone, where solute molecules attach to the surface of crystal seeds to grow continuously. 3. The built-in classifier separates crystals by particle size: large-grain crystals settle to the bottom for discharge as finished products, while small-grain crystals are lifted back to the crystallization zone by the circulation pump to continue growing. 4. For cooling OSLO, the feed liquid is cooled to reach supersaturation; for evaporative OSLO, the feed liquid is concentrated by evaporation to achieve crystallization, ensuring stable and continuous operation.
Classifying Crystallization Design: Built-in classifier realizes automatic separation of crystal sizes, producing uniform, large-grain crystals (particle size up to 0.5-5mm) with high market value.
Dual-Type Adaptability: Available in cooling and evaporative types, suitable for different feed liquid properties and crystallization requirements (cooling for heat-sensitive materials, evaporative for high-salt solutions).
High Product Purity: Closed circulation system reduces impurity mixing, and the classification function ensures high purity of finished crystals (up to 99.5%+), meeting industrial and food-grade standards.
Stable & Anti-Scaling: Reasonable circulation design ensures uniform flow velocity, avoiding crystal deposition and scaling, reducing maintenance frequency and extending equipment service life.
Continuous Operation: Designed for continuous feeding, crystallization, and discharge, improving production efficiency and ensuring consistent product quality.
Corrosion-Resistant Structure: Made of 304/316L stainless steel or duplex stainless steel, resistant to corrosive feed liquids such as acids, alkalis, and high-salt solutions.
Customizable Design: According to customer’s feed liquid composition, crystal particle size requirements, and production capacity, customize the type, size, and configuration of the OSLO crystallizer; support integration with evaporation or wastewater treatment systems.
Our OSLO crystallizers are widely used in various industrial fields that require high-quality, uniform crystal products, providing reliable solutions for enterprises, including but not limited to:
Chemical Industry: Crystallization of sodium chloride, sodium sulfate, ammonium nitrate, potassium chloride, and other chemical salts; purification of organic compounds and chemical intermediates.
Salt Production Industry: Industrial salt, edible salt, and specialty salt production from seawater, brine, and high-salt wastewater; ensuring uniform crystal size and high purity.
Pharmaceutical Industry: Crystallization of active pharmaceutical ingredients (APIs), pharmaceutical intermediates, and herbal extracts; meeting GMP standards.
Environmental Protection: Crystallization treatment of high-salt industrial wastewater, recovery of salt resources, and realization of zero liquid discharge (ZLD).
Food Industry: Crystallization of food additives, sugar, and natural extracts; ensuring product safety and quality.
We provide one-stop solutions for OSLO crystallizers, from professional feed liquid analysis, process design, and custom manufacturing to on-site installation, commissioning, operator training, and long-term after-sales support. Our technical team has rich experience in industrial crystallization, can tailor the most suitable OSLO crystallizer system according to your specific needs, helping you improve product quality, reduce production costs, and realize efficient resource utilization.
Whether you need a cooling OSLO crystallizer for heat-sensitive materials or an evaporative OSLO crystallizer for high-salt solutions, whether for small-scale pilot production or large-scale industrial mass production, we can provide reliable products and professional services to meet your production needs.
Contact us today to get a free feed liquid analysis, technical proposal, and quotation for your OSLO crystallizer project.
