In laboratory research and experimentation, sample separation and filtration serve as core procedures that guarantee the accuracy and reliability of experimental data, directly impacting the efficiency of scientific research, process bench tests and pilot-scale transformation.
As essential separation tools in laboratories, vacuum filtration devices play a vital role in experiments across a wide range of fields. As a professional segmented piece of such equipment, the Lab Rotary Cylinder Vacuum Filter stands out as the preferred choice for scientific research institutions, university laboratories and enterprise R&D centers, thanks to its compact size and high precision.
With the upgrading of refined scientific research demands and the shortening of pre-industrialization experimental cycles, laboratory filtration equipment is required not only to meet the basic standard of thorough separation, but also to fulfill core requirements including precise regulation, high efficiency, energy conservation and user-friendly operation.
Yinuo Machinery has long specialized in the filtration equipment industry. Focusing on pain points in laboratory scenarios, we have independently developed a dedicated Laboratory vacuum filter, delivering multiple competitive advantages to support scientific research and bench-scale tests.

What is a Laboratory vacuum filter?
A Laboratory vacuum filter is a miniaturized, lab-scale solid-liquid separation device that simulates the working principle of large industrial vacuum drum filters. Relying on vacuum negative pressure as the core power source, it integrates continuous or semi-continuous operations such as slurry filtration, washing, dewatering and discharging.
Compared with industrial-grade equipment, it is uniquely positioned for small batch capacity, high precision, good repeatability and easy adjustability. Specially designed for scientific research experiments, process exploration, parameter testing and sample preparation, it enables experiments to be completed without consuming large quantities of materials, effectively reducing R&D costs.
In terms of structure, the Lab Rotary Cylinder Vacuum Filter consists of seven core components: drum, filter cloth, slurry tank, vacuum system, transmission device, precision distribution valve, automatic discharge mechanism and filter cloth cleaning system.
Working Principle of Lab Rotary Cylinder Vacuum Filter
The Laboratory vacuum filter features a streamlined and efficient workflow with minimal manual intervention throughout operation. As the drum is partially immersed in the slurry tank, negative pressure generated by the vacuum system draws liquid from the slurry through the filter cloth and into the drum interior, while solid particles are trapped to form a uniform filter cake.
With the slow rotation of the drum, six sequential processes — filtration, washing, dewatering, blow-off, discharge and filter cloth regeneration — are completed in one pass, enabling continuous cyclic operation.
During the entire process, operators can flexibly adjust the vacuum level, drum rotation speed, filter cake thickness and washing dosage according to material properties and experimental requirements, ensuring stable separation performance for various slurries.
For example, in filtration tests of pharmaceutical intermediates, when the vacuum degree is adjusted to -0.06 ~ -0.09 MPa, the filtrate clarity can reach 98% or higher, and the filter cake moisture content is kept steadily below 20%, fully meeting the requirements of subsequent purification processes.

Core Technical Advantages
Conventional laboratory vacuum filters feature core merits such as high speed and efficiency, flexible applicability, precise test results and clean operation. On this basis, the Lab Rotary Cylinder Vacuum Filter from Yinuo Machinery further enhances adaptability to laboratory application scenarios and delivers a full range of specialized advantages.
Fast and High Efficiency
As a core advantage of vacuum filtration equipment, this model creates a pressure difference via vacuum negative pressure to accelerate the filtration process. Compared with intermittent equipment such as traditional plate-and-frame filter presses, it enables semi-continuous and continuous operation. One single feeding completes the whole process of filtration, washing, dewatering and discharging without frequent start and stop of the equipment.
Taking the catalyst bench test of a chemical enterprise as an example, after adopting Yinuo Machinery’s equipment, the single test cycle is shortened from 2 hours to 40 minutes, with the test efficiency improved by 67%. It effectively solves the pain point of long time consumption of traditional separation methods, realizes rapid separation of pure filtrate, and greatly saves experimental time.
Flexible Applicability
This model boasts excellent versatility and flexibility to process samples of various types and properties. It can effectively separate volatile organic solvents, viscous liquids, as well as acid and alkali corrosive materials by selecting suitable filter media and adjusting operational parameters.
Meanwhile, the equipment is available in a complete range of specifications and models, and supports non-standard customization. Customized solutions can be tailored to different experimental requirements to meet diverse solid-liquid separation needs in laboratory settings.
Precision and Reliability
In fields with high requirements for sample purity, such as biomedicine and pharmaceutical research, this unit can effectively remove impurities from samples and prevent experimental errors caused by impurity interference. This is highly consistent with the core value of vacuum filtration equipment in ensuring the accuracy of experimental results.
In addition, all equipment parameters are precisely controllable. The rotation speed and vacuum degree feature stepless regulation. Key indicators including filter cake moisture content and filtrate clarity deliver excellent repeatability, with the experimental data error rate kept below 3%. It provides a reliable basis for process scale-up and guarantees more accurate and dependable analytical results.
Easy Operation & Sanitary Design
Inheriting the advantages of vacuum filtration equipment for simple operation and easy cleaning, this model features an exquisite structural design and straightforward operating procedures. Equipped with a PLC and touch screen control system, it allows one-click parameter setting, enabling operators with no professional experience to get started quickly.
Thanks to detachable components and a quick-release filter cloth replacement structure, cleaning and maintenance become much more convenient. The filter cloth can be replaced within 5 minutes. The design leaves no dead corners for dirt buildup, effectively avoiding cross-contamination of materials and simplifying overall experimental operations.
Durable Material Construction
All parts in contact with materials are made of 316L stainless steel or polypropylene, featuring excellent acid and alkali resistance, strong corrosion resistance, superior sealing performance, low operating noise and zero leakage. It fully complies with laboratory environmental protection and safety standards.
In addition, optional functions such as filter cake washing, reverse air blow discharge, pre-coating with filter aid, and slurry stirring for anti-sedimentation can be flexibly configured. It adapts to complex experimental processes and further expands application scenarios.
Wide Range of Application Fields


Why Choose Yinuo Machinery?
Laboratory vacuum filters have become essential tools for laboratory research due to their advantages of speed, high efficiency, flexibility and high accuracy. On this basis, the Lab Rotary Cylinder Vacuum Filter adopts a product positioning of compact yet sophisticated, professional yet high-performance. It further solves the core pain points in scientific filtration, including precise regulation, efficiency improvement and reliable experimental data, serving as a vital bridge connecting laboratory R&D and industrial production.
In the future, Yinuo Machinery will continue to deepen its dedication to the filtration equipment industry. We will keep upgrading technologies and optimizing products, providing more professional solid-liquid separation solutions for scientific innovation and industrial development, and helping more enterprises and research institutions achieve technological breakthroughs and industrial implementation.