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Tap into the Big Health Market: Oligosaccharide Spray Dryers Usher in a New Era of High-Quality Functional SugarsOligosaccharides: The Golden Ingredient for Functional Foods Amid the Big Health Boom As guardians of intestinal health, functional oligosaccharides keep unlocking massive market potential thanks to their unique physiological functions and application strengths. Among them, Isomaltooligosaccharide (IMO) ranks as the most widely produced and applied functional oligosaccharide, dominating the industry with four core advantages: Low sweetness with no health burdens to meet wellness demands It delivers only 30%–50% of sucrose’s sweetness with a mild, non-cloying taste. It can partially replace sucrose in low-sugar and low-calorie foods, eliminating health risks brought by traditional high-sugar diets. Anti-cavity oral protection suitable for all age groups It cannot be broken down by oral bacteria to produce acid that erodes tooth enamel. Widely used in children’s snacks and elderly food, it addresses the cavity risks of conventional candies and baked goods. High tolerance for broad application coverage Most consumers will not suffer bloating or diarrhea after intake. It avoids sharp blood sugar spikes for diabetics and serves as a dairy substitute for lactose-intolerant people, catering to all age brackets. Excellent thermal and acid stability to break process limitations It boasts outstanding resistance to heat and acid. Its molecular structure remains intact during high-temperature baking and acidic beverage production at pH 2–12 without losing functional activity. Compatible with baking, sterilization and long-term storage, it offers food manufacturers greater room for formula innovation.   Surging Market Demand for Functional Oligosaccharides Market demand for functional oligosaccharides is exploding. Industry statistics show the global market registers an annual growth rate well above average. As the world’s largest producer and consumer, China’s market size exceeded 8 billion RMB in 2024. Application boundaries have expanded beyond traditional dairy and beverages to infant formula, health supplements and pharmaceutical excipients. For instance, Galactooligosaccharide (GOS) is added to infant milk powder to mimic the prebiotic benefits of breast milk; isomaltooligosaccharide acts as the core raw material for intestinal regulators in health products. Such applications raise stricter standards for oligosaccharide powder: high purity, fine particle size and zero impurities. The technical performance of spray drying equipment directly determines whether manufacturers can seize market opportunities. Prominent Industry Pain Points: Four Core Challenges of Conventional Oligosaccharide Spray Dryers Despite bright market prospects, traditional spray drying equipment suffers poor material adaptability, a major bottleneck restricting high-quality industrial development. Given oligosaccharide syrup’s high viscosity and strong hygroscopicity, conventional centrifugal spray dryers face four critical drawbacks: Severe tower wall buildup leading to heavy material loss and safety hazards High viscosity and surface tension cause atomized syrup droplets to stick to the tower inner wall, forming agglomerated powder deposits. Long-term high-temperature baking darkens and scorches the deposits. Factories must halt production every shift to clean wall buildup, then re-dissolve, concentrate and re-dry recovered materials. This pushes up labor time and energy consumption. Worse, incomplete cleaning may mix burnt particles into finished powder, forming black specks that compromise purity and food safety. Inadequate drying leading to excessive moisture content Conventional drying towers often feature insufficient effective volume or underpowered heating systems, failing to fully dry atomized droplets inside the tower. For example, a centrifugal spray dryer designed to produce powder with 95% dry matter often yields products exceeding moisture standards. Extra post-drying procedures cut production efficiency and risk damaging oligosaccharide functionality via secondary heating. Flawed structural design exacerbating process defects Many towers suffer oversized cone angles and poorly configured air outlets. Overly large cones shorten material residence time, preventing full contact with hot airflow; ill-designed outlets create turbulent air and uneven droplet distribution, worsening wall adhesion and incomplete drying. Poor atomization resulting in inconsistent particle size Unstable atomization and overlong spray distances of traditional centrifugal atomizers produce droplets with drastically varying diameters (some exceeding 200 μm). Tiny droplets are swept away by hot air as dust loss, while oversized droplets retain excess moisture and form wet powder. The final product features uneven particle size and poor flowability, complicating subsequent packaging and application. These issues translate into low output, high energy consumption and high reject rates. They also fail downstream clients’ requirements for high-purity, high-activity and stable oligosaccharide powder, becoming a stumbling block for manufacturers competing in the big health market. Against the backdrop of the in-depth implementation of the Healthy China 2030 Strategy, functional food stands among the fastest-growing segments of the food industry. Consumers’ rising demand for natural, healthy and functional ingredients drives upgrades across the food additive sector. Functional oligosaccharides such as IMO, Fructooligosaccharide (FOS) and Xylooligosaccharide (XOS), with core prebiotic properties, form a vital link connecting food manufacturing and the big health industry. Spray drying, the core process converting oligosaccharide syrup into high-purity powder, emerges as the decisive factor governing product quality, production efficiency and market competitiveness. With years of R&D expertise in drying equipment, Longxin Drying has launched an innovative pressure spray dryer tailored to the oligosaccharide industry’s pain points. Groundbreaking technology eliminates traditional process bottlenecks and opens a new chapter of premium production for functional sugars, sugar alcohols and food additives. Innovation Solves Industrial Difficulties: Technical Breakthroughs of Longxin’s New Pressure Spray Dryer Drawing on decades of drying equipment R&D experience and the physical properties of oligosaccharide syrup, Longxin Drying has developed the all-new YPG Oligosaccharide-Specific Pressure Spray Dryer. Five core technical innovations eliminate inherent flaws of conventional units and deliver efficient, energy-saving, high-quality production: Precision Atomization System: Accurate particle control to resolve incomplete drying Customized for high-viscosity oligosaccharide syrup, the multi-channel pressure atomizer comes with interchangeable ceramic or stainless steel inserts (orifice sizes: 0.5–3.0 mm) and precisely adjustable atomization angles for tight control over average droplet size. Unlike centrifugal atomizers plagued by overlong spray distances and uneven particle distribution, this system instantly boosts droplet specific surface area for full contact with hot air and rapid moisture evaporation. It eliminates incomplete drying and excess moisture, stabilizing dry matter content of finished powder above 95% to meet high-purity standards. Optimized Drying Tower Structure: Anti-stick design to cut material loss Two structural breakthroughs address tower wall powder buildup: Optimized cone angle: Set at 45°, much narrower than the 60°+ cones of traditional equipment, it extends material residence time for thorough drying. The tower body adopts mirror-polished 304 stainless steel to reduce adhesion surfaces and minimize wall deposits. Upgraded hot air distributor: A 3D stereoscopic hot air distributor delivers uniform wind speed with minimal deviation, generating stable spiral hot airflow to avoid local overheating and burnt powder. Droplets disperse evenly without direct impact on tower walls, fundamentally reducing adhesion. The tower is also equipped with an air-swept anti-stick system and timed air hammers to clear minor deposits in real time, removing the need for frequent production halts and lowering material loss rates. Two-Stage Powder Recovery System: Efficient capture to boost output and purity Conventional single-stage bag dust collectors easily suffer blocked filter bags that reduce airflow and limit throughput. Longxin adopts a dual recovery system combining two-stage cyclone separators and pulse back-blow bag dust collectors for superior powder capture efficiency. Intelligent Temperature & Feeding System: Stable production compatible with complex processes To preserve oligosaccharide functionality, multi-mode heating (steam, electric, gas optional) is fitted with a Siemens PLC and advanced PID intelligent algorithm for precise, adjustable inlet air temperature control. Accurate temperature regulation prevents local overheating that causes oligosaccharide hydrolysis or denaturation. The feeding system uses positive displacement diaphragm pumps with adjustable flow rates of 0.5–20 m³/h, integrated with online viscometers and pressure sensors. It monitors feed viscosity and delivery pressure in real time and automatically adjusts feeding speed to maintain consistent atomization, accommodating oligosaccharide syrups of varying concentrations without repeated parameter tuning. Energy-Saving & Eco-Friendly Design: Cost reduction and sustainable green production For energy efficiency, waste heat recovery technology recycles residual heat from exhaust gas to preheat incoming fresh air, cutting overall energy consumption by 10–20% versus traditional dryers. For environmental compliance, an exhaust treatment system combining pulse dust removal and activated carbon adsorption delivers low emission concentrations to meet national environmental standards, supporting manufacturers’ green production targets amid tightening environmental regulations.      Empowering Industrial Upgrade: Longxin Technology Helps Manufacturers Capture Big Health Market Opportunities The new Longxin pressure spray dryer resolves efficiency and quality bottlenecks in oligosaccharide production and creates multi-dimensional value for industry clients: Premium product quality Spherical powder with uniform particle size, excellent flowability and instant solubility is directly applicable to high-end segments including infant formula and health supplements, lifting product added value. Higher production efficiency Single-unit output surpasses traditional equipment, shortening annual production hours and slashing labor costs. Expanded application scope The dryer suits drying of various functional ingredients such as FOS, XOS and sugar alcohols. It supports both hot-air drying and cold-air granulation modes to cover beverage, baking, pharmaceutical and other production lines. One machine fulfills multiple production demands and reduces capital expenditure on separate equipment. Tap Into the Big Health Market Through Technological Innovation Amid the booming big health industry, functional oligosaccharides as golden ingredients hold untapped market potential. Spray drying, a core production link, forms a core competitive moat for manufacturers. Guided by the mission of solving industrial pain points and driving industrial upgrading, Longxin Drying delivers customized, high-performance drying solutions for functional sugar, sugar alcohol and food additive manufacturers through continuous technological innovation. Moving forward, Longxin will deepen research into oligosaccharide processing technology and develop more efficient, energy-saving and intelligent equipment. We support more manufacturers to seize big health market opportunities and jointly write a new chapter of high-quality development for functional sugars.Read More

Food industry -- sand millLongxin specializes in the production of two-roll machine, three-roll machine, five-roll machine, sand mill, refining machine, mixing tank, stainless steel platform structure, food slurry pipeline transportation and the whole line production EPC project. They are used in the chocolate industry, peanut syrup, wafer, milk powder raw materials, candy, pet food and so on.In the chocolate industry, from single equipment to the entire line of automated production: Cocoa beans are dried after fermentation, roasted after sorting until they are ground into powder, then further ground into powder by refining machine, then transported to two, three or five rollers, pressed and heated, then adjusted by automatic conveyor belt to add cocoa butter for mixing, cooling into blocks, etc., equipment design and installation of the entire production line. The whole production line automation AI+ human-machine interaction and other projects.Read More

Soybean dietary fiber rotary flash dryerBrief introduction of the case :Soybean dietary fiber rotary flash dryer by putting the material into the dryer, under the strong action of high-speed rotating stirring, under the action of impact and friction to disperse, quickly crushed, fully heated, dry, in the separator for gas-solid separation, to obtain the collection and packaging of finished soybean dietary fiber, and the tail gas is treated by the dust removal device, to meet the national environmental protection requirements after empty.Soybean Dietary fiber engineering Description:Dietary fiber is recognized by the medical and nutritional communities as the "seventh nutrient". In foreign countries, soybean dietary fiber has been widely used, the products sell well in the world, and the enterprise benefit is remarkable. In our country, soybean residue, which is rich in soybean dietary fiber, comes from a wide range of sources and is cheap, and its development and utilization will produce good social and economic benefits.Our company based on excellent process technology and rich production experience, through understanding customer needs, manufacturing soy dietary fiber special rotary flash dryer.Soybean dietary fiber production process:Wet soybean residue → adjusted acid (1mol/L hydrogen chloride adjusted pH value of 3 ~ 5) → hot water soaking (80℃ ~ 100℃,2h) → neutralization (1mol/L sodium hydroxide to adjust pH value to neutral) → dehydration and drying (drying at 65℃ ~ 70℃ or air drying to 8% moisture content) → grinding → screening (80 mesh) → soybean residue powder → extrusion (feeding moisture 16.8%, 150℃ screw speed 150r/min) → cooling → grinding → functional activation and ultra-fine grinding.Soybean dietary fiber rotary flash dryer working process:The material enters the dryer, under the strong action of high-speed rotating mixing, under the action of impact and friction, it is dispersed, rapidly crushed, fully heated and dried, and gas-solid separation is carried out in the separator, which can collect and package the finished soybean dietary fiber, and the tail gas is treated by the dust removal device and emptied after meeting the national environmental protection requirements.Soybean dietary fiber rotary flash dryer equipment advantages:1, a variety of feeding device specifications to choose from, feeding continuous stability, no bridge phenomenon.2, the special cooling device effectively avoids the deterioration of soybean dietary fiber in the bottom high temperature area.3, high gas velocity, soybean dietary fiber residence time is short, no sticky wall phenomenon occurs.4, grading ring and swirl sheet can make soybean dietary fiber fineness and final moisture can be adjusted and controlled.Application range of rotary flash dryer:Because it integrates drying, crushing and screening, it is a new type of continuous drying equipment. The rotary flash dryer is popular with organic matter such as sodium oxalate, benzoic acid, inorganic matter such as barium carbonate, copper sulfate, soy protein, wine lees and other food, zinc sulfide, black iron oxide and other dye engineering industries.The drying time is short, only tens of seconds can evaporate the water, our company's technical department has a unique design program, can control the particle size and final water content of the finished product by adjusting the wind speed, air volume, etc.Our company can produce rotary flash dryer according to customer requirements and material characteristics, welcome new and old customers to call to inquire about the specific plan!Read More

Xylose vibrating fluidized bed dryerCase introduction: Xylose wet material relies on vibration force to move forward continuously on the air distribution plate, and at the same time contact with the hot air sent into the bottom of the distribution plate, showing a suspended state and hot air flow contact. The intense turbulence between xylose particles and the thermal medium strengthens the heat and mass transfer process. The dried xylose is discharged from the discharge port, the evaporated water and waste gas are recovered by the cyclone separator and the cloth bag dust collector, and then discharged into the atmosphere.Xylose industry prospects:Xylose is a kind of pentose, which is widely used in food, feed, medicine, chemical industry and other fields. According to the research and analysis of China's xylose industry development and market prospect forecast report released by China Industry Research Network, most of China's xylose enterprises implement the business model of production and sales, and production and sales are basically balanced. In 2018, China's xylose production was nearly 240,000 tons. With the growth of the national economy and people's attention to the nutritional value of food, the demand for food-grade xylitol has increased, and sugar alcohol enterprises are actively preparing new food-grade xylitol production lines to respond to market demand.According to the market demand and xylose characteristics, Longxin has developed and manufactured xylose vibrating fluidized bed dryer with more than ten years of actual drying experience and advanced and mature technology.Xylose vibrating fluidized bed dryer working principle:The xylose wet material moves continuously forward on the air distribution plate by vibration force, and contacts with the hot air sent under the distribution plate at the same time, presenting a suspended state and contact with the hot air flow. The intense turbulence between xylose particles and the thermal medium strengthens the heat and mass transfer process. After drying, the xylose is discharged from the discharge port, and the evaporated water and waste gas are recovered by the cyclone separator and the cloth bag dust collector, and then discharged into the atmosphere. Xylose vibrating fluidized bed dryer equipment features:1. The residence time of xylose in the dryer can be changed by adjusting the vibration parameters. The operation of the piston flow reduces the requirements for the uniformity and regularity of xylose particle size, and it is easy to obtain uniform dry xylose products.2. The refrigeration dehumidification device can be used for forced cooling and dehumidification to ensure the cooling effect and prevent the occurrence of moisture return during the cooling process.3. Due to the absence of intense material return, the damage to xylose particles is small, ensuring the integrity of xylose crystals and surface brightness.Vibrating fluidized bed dryer equipment application:As the star product in our company's many drying equipment, the new vibrating fluidized bed dryer has been improved and has been widely used in chemical, pharmaceutical, food, mineral and other industries. This equipment not only has a strong drying function, but also according to the process needs to complete the material granulation, cooling, spraying a small amount of liquid, screening and conveying processes, unique structural design can also maintain a good drying environment and prevent dust leakage. Large output, strong adjustability.Our company can customize the vibrating fluidized bed dryer according to different material characteristics and customer needs, and the heat source can be selected according to the specific conditions of customers. Welcome to call us for advice, carry material field test and investigation, and discuss the plan in detail!Read More

Food engineering industry