Ceramic Metering Pump Working Principle and Control Methods
MICRAVA Ceramic Pumps are ideal metering equipment for precision fluid metering, filling, dosing, dispensing, dripping, and sampling. Ceramic metering pumps are now widely used in battery electrolyte filling, biopharmaceuticals, microelectronics, food & beverage, chemical industries, and many other fields. In high-standard and high-demand manufacturing processes, they undertake the metering, dosing, and transportation of highly precise, corrosive, and toxic fluid media. After years of practical application and technical improvement, ceramic metering pumps have now entered a period of rapid growth.
Battery Electrolyte Filling
IVD
Chemical Reagent Filling
Today, with the continuous stabilization and maturity of ceramic material technology from raw materials, sintering, to precision machining, the performance, quality, and cost of ceramic metering pumps have achieved breakthrough improvements. With their unique chemical resistance properties and stability, ceramic plunger pumps can meet the chemical resistance requirements for transporting most chemical liquid media under power-driven operation. As the requirements for industrial intelligence and automation continue to increase, MICRAVA, as a ceramic pump R&D and sales enterprise, has a highly skilled and experienced R&D team. The safety, controllability, and intelligence of ceramic metering pumps are becoming increasingly important.
MICRAVA Ceramic Pump Working Principle
Ceramic metering pumps mainly consist of three major components: stepper motor drive, ceramic valve body, and control system. According to different driving methods, there are currently two mainstream types: rotary reciprocating type and linear push-pull type.
Rotary Reciprocating Ceramic Metering Pump
The rotary reciprocating type uses a stepper motor drive system to drive the ceramic rod (ceramic piston) in reciprocating push-pull and rotational motion, achieving piston reciprocating movement to transport fluids to the required destination. The precision ceramic valve chamber ensures the accuracy of each suction and discharge volume, thereby achieving precise metering of the conveyed media.
The metering pump controller is equipped with an upper computer RS485 communication port, enabling monitoring and control of the metering pump through the upper computer system. It also supports switching signal input and output, alarms, real-time feedback, and completion feedback signals.
Rotary Reciprocating Control
The volume of each stroke chamber determines the metering capacity of the pump. The calculation formula is V=πr². The flow rate of the output medium depends on the stroke length, ceramic chamber volume, and stroke frequency. Under fixed metering medium and working pressure conditions, the output volume of the metering pump can be adjusted by manually changing the stroke length (angle) and setting the stepper motor speed and rotation direction through the human-machine interface.
Linear Push-Pull Control
Similarly, the volume of each stroke chamber in the linear push-pull ceramic metering pump determines its metering capacity. The output flow depends on the stroke length, ceramic chamber volume, and stroke frequency. Under fixed metering medium and working pressure conditions, the output volume can be adjusted by changing the stroke length.
Although both stroke length and stroke compensation can be used as adjustment variables, in engineering applications, stroke length is generally regarded as a coarse adjustment variable, while stroke compensation is used for fine adjustment. The stroke length is adjusted to a certain value first, and then fine adjustment is achieved through compensation to increase flexibility. In relatively simple applications, the stroke length can also be manually set, with only the stroke frequency used as the adjustment variable, thereby simplifying system configuration.
MICRAVA has always been committed to providing advanced solutions for microliter, milliliter, and liter-level fluid filling, dispensing, spraying, and sampling. At present, MICRAVA has established long-term cooperative relationships with more than 1,000 domestic and international enterprises engaged in biomedicine, battery manufacturing, chemical preparations, dairy products, cosmetics, and other industries.
After years of continuous effort, innovation, and R&D, MICRAVA has developed ceramic metering pump products from a single product line into diversified product series. The company has successively developed single-head, double-head, multi-head, micro-volume, variable-volume, sampling, aspirating & dispensing ceramic pumps, ceramic switching valves, distribution valves, pulse-free series products, and more. MICRAVA offers a complete product range with strong technical capabilities.
We have absolute quality control capabilities. From product design and development, material procurement, manufacturing, product inspection, to packaging and shipment, all processes strictly follow the quality management system to ensure consistent high quality. Every pump shipped is fully traceable and guaranteed for excellent performance.
We have professional pre-sales and after-sales technical personnel with excellent skills, rich practical experience, and a strong sense of responsibility. Providing first-class accurate service and support is our strong guarantee to satisfy customers at all times. A strong R&D team serves as our technical support, while fast after-sales service ensures that all problems can be solved promptly whenever needed. The MICRAVA brand is the proof of our reputation.
For more information, please visit the official website:
www.micrava.com
