Modern dairy operations process thousands of liters of milk daily through complex pipeline networks, with cleaning cycles managing temperatures from 4°C during milk collection to 75°C during sanitization. These systems must maintain strict hygiene standards while handling variable milk flow rates and preventing cross-contamination between cleaning solutions and product.

The fundamental challenge lies in achieving thorough cleaning of all surfaces while minimizing downtime, water usage, and chemical consumption in increasingly automated milking systems.

This page brings together solutions from recent research—including pressure-actuated valve systems, integrated teat processing mechanisms, dynamic vacuum control, and intelligent fluid distribution designs. These and other approaches focus on optimizing cleaning effectiveness while maintaining milk quality and reducing resource consumption in modern dairy operations.

1. Centralized Utility System for Synchronized Cleaning of Milking Devices and Milk Lines

LELY PATENT NV, 2025

A milking system for dairy farms that optimizes milking operations through a central utility system. The system comprises a central utility system that connects each milking device, including the milking unit, milk line, and buffer unit, to a common cleaning infrastructure. This infrastructure enables synchronized cleaning of all milking devices and their associated milk lines during scheduled cleaning cycles, while preventing milk line contamination during non-scheduled cleaning operations. The system incorporates advanced cleaning technologies, such as automated fluid management and temperature control, to maintain optimal milking conditions during cleaning cycles.

2. Robotic Arm-Based Integrated Teat Processing System with Sequential Cleaning, Milking, and Medication Components

NANJING LIRUN INFORMATION TECH CO LTD, 2022

Automated milking system for cows and other milk-producing animals that provides thorough teat cleaning, milking, and medication application in a single device. The system uses a robotic arm with a processing mechanism that moves inside a cattle restraint cage. Cameras monitor the animal's teats and a recognition module identifies them. The arm cleans, milks, and medicates the teats in sequence using components like a cleaning device, milk lining, and medication bath shell. This integrated teat processing prevents bacteria growth, improves milk quality, and eliminates the need for separate machines.

3. Portable Milk Pipeline Cleaning Device with Integrated Pump and Washer

ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ ВЕЛИКОЛУКСКАЯ ГОСУДАРСТВЕННАЯ СЕЛЬСКОХОЗЯЙСТВЕННАЯ АКАДЕМИЯ, VELIKOLUKSK STATE AGRICULTURAL ACADEMY, 2022

A device for periodic cleaning of milk pipelines in milking machines that improves milk quality and storage duration. The device is compact and portable, allowing easy movement through the milk pipeline network. It doesn't require long water supply lines or high-pressure pumps like existing systems. The device has a pump and a washer that flush the milk pipelines to remove deposits. It provides complete cleaning of internal surfaces without the need for industrial-grade fluids. This improves milk quality and storage time by preventing contamination buildup in the milk pipelines.

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4. Automated Milking System with Dynamic Vacuum Pressure Control

DE LAVAL HOLDING ARBE, 2021

Optimizing milking efficiency and animal welfare in automated milking systems by intelligently controlling vacuum pressure during the milking process. The control unit has a method where it applies increased vacuum during the production phase, then higher vacuum during exit. This stimulates oxytocin release and milk letdown, then helps drain the remaining milk. The transition to exit is based on time criteria or milk yield. This provides a more efficient and animal-friendly milking experience compared to fixed vacuum levels.

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5. Cork-Shaped Cleaning Device with Helical Cutouts and Perpendicular Groove for Evacuated Milk Pipelines

ULYANOVSK STATE AGRARIAN UNIVERSITY N.A PA STOPYPIN, Federal State Budgetary Educational Institution of Higher Education Ulyanovsk State Agrarian University named after P.A. Stolypin, 2021

Cleaning device for evacuated milk pipelines in milking installations that prevents buildup of contaminants on the cleaning device itself. The device has a cork-shaped cleaner with cutouts along a helical line and a perpendicular groove on the outer surface. This allows fluid to flow through the cutouts and around the cleaner as it rotates, preventing accumulation of contaminants on the outer surface.

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6. Rotating Cleaning Head with Concentric Cuff System for Milk Pipeline Maintenance

Federal State Budgetary Educational Institution of Higher Education Velikiye Luki State Agricultural Academy, FEDERALNOE GOSUDARSTVENNOE BYUDZHETNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIYA VELIKOLUKSKAYA GOSUDARSTVENNAYA SELSKOKHOZYAJSTVENNAYA AKADEMIYA, 2021

Periodic cleaning device for milk pipelines in milking installations to improve milk quality and storage. The device has a rotating cleaning head with cuffs that sequentially cover the pipeline. The cuffs have holes on concentric circles to divide the annular area between the pipeline and shaft. This provides complete removal of deposits from the cuff chambers compared to prior devices. The cleaning head is moved by a separate motor rather than relying on pressure difference. This allows controlled motion instead of just translating. It also prevents close contact with the pipeline to effectively clean. The head rotates as it moves to remove air.

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7. Milking System with Robotic Rear-Leg Attachment Mechanism for Automated Equipment Connection

TECHNOLOGIES HOLDINGS CORP, 2019

A milking system with automated milking equipment attachment that enables precise and efficient milking operations. The system comprises a milking box with a robotic attachment mechanism that extends between the rear legs of dairy livestock. The system incorporates a specialized attachment system that securely attaches milking equipment to the dairy animal, enabling automated milking while minimizing labor requirements.

8. Automatic Milking Machine with Integrated Cup Removal and Partitioned Milk Collection Chambers

ANHUI YOMO MACHINERY GROUP CO LTD, 2018

Automatic milking machine with integrated cup removal capability for efficient milking operations. The machine comprises a milking box and an automatic cupping box, with a unique partition separating the milk collection chambers. The machine features a milk inlet and outlet opening at one end of the milk tank, allowing for automated milking while maintaining a clean and sanitary environment. The cup removal system enables the machine to automatically detach milk cups from the milking machine, eliminating the need for manual intervention and reducing labor costs.

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9. Device for Milk Line Systems with Rotating Cleaning Element and Integrated Real-Time Monitoring

FEDERAL STATE BUDGET SCIENTIFIC INSTITUTE VIM SCIENTIFIC AGROENGINEERING CENTER, FEDERALNOE GOSUDARSTVENNOE BYUDZHETNOE NAUCHNOE UCHREZHDENIE FEDERALNYJ NAUCHNYJ AGROINZHENERNYJ TSENTR VIM, Federal State Budgetary Scientific Institution Federal Scientific Agroengineering Center VIM, 2018

Cleaning and monitoring milk line systems through an innovative device that combines a rotating cleaning system with real-time monitoring of the cleaning process. The system comprises a motorized cleaning element, an LED lamp for internal quality control, and a photosensor for monitoring the cleaning process. The motorized cleaning element utilizes a fan to generate thrust, while the LED lamp and photosensor work together to monitor the cleaning process. This integrated system provides both effective cleaning of the pipeline walls and continuous quality control of the cleaning process.

10. Dairy CIP Process with Multi-Step Liquid Chemistry and Temperature Control

XIUYUN ZHAO, 2018

A dairy CIP (Cleaning, Interim, and Sanitizing) process that optimizes cleaning efficiency and safety while maintaining the integrity of dairy equipment. The method involves a multi-step cleaning sequence with precise control over liquid chemistry and temperature, followed by thorough sanitization. The process includes pre-washing, pickling, alkaline washes, sterilization, and final cleaning steps to ensure effective removal of bacteria and sanitizers while preserving equipment surfaces.

11. Rotary Milking System with Integrated Robotic Teat Cleaning and Attachment Mechanisms

DELAVAL HOLDING AB, 2017

A rotary milking system that maximizes milking efficiency by integrating automated teat cleaning and milking operations. The system features a rotating milking platform with integrated robotic manipulation devices that fetch and attach teat cups to animals during milking. The robotic devices are designed to maintain optimal teat cup positioning during rotation, enabling faster teat cleaning and milking cycles. The system employs a parallel configuration where each milking stall receives a dedicated robotic device, allowing for synchronized teat cleaning and milking operations. The robotic devices are equipped with automated teat cup attachment mechanisms that maintain proper teat cup positioning during rotation, ensuring efficient milking operations.

12. Automated Milking System with Dual-Fluid Dispensing Architecture and Automated Arm Control

MAIER JAKOB, 2017

Automated milking system for dairy animals that optimizes teat cleaning and disinfection through a novel fluid dispensing architecture. The system integrates separate dispensing lines for first and second process fluids, with automated positioning and control of the dispensing arm. This design enables precise control over fluid application and distribution, ensuring optimal teat cleaning and disinfection before and after milking. The system can be configured to apply additional treatment fluids at specific positions during the milking process, providing enhanced hygiene and surface preparation for the animal's udder.

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13. Automated Teat Cleaning System with Integrated Stall Devices and Synchronized Rotary Platform Operation

DELAVAL HOLDING AB, 2017

Automated teat cleaning system for rotary milking platforms that optimizes cleaning between milking cycles. The system integrates cleaning devices into each milking stall, with the cleaning process synchronized with platform rotation. When the platform reaches a predetermined rotational position, the cleaning devices automatically clean teat cups between milking cycles, utilizing a closed-loop cleaning circuit that includes a milk conduit and a cleaning medium supply system. The cleaning devices are positioned strategically to facilitate efficient cleaning between milking cycles, with positioning mechanisms ensuring optimal alignment with teat cups and milk conduit connections.

14. Automated Milking System with Integrated Sensors for Real-Time Parameter Control and Health Monitoring

TIANJIN HELI HUIMU TECHNOLOGY CO LTD, 2017

Automated milking system that enables precise control over milking parameters through real-time monitoring and automated adjustments. The system integrates a milking controller with advanced sensors and processing capabilities to optimize milk production and quality through automated control of parameters such as pulsation, vacuum, and massage. The system also features automatic detection of cow health indicators and residual milk levels. The system provides real-time monitoring and alerts for potential issues like mastitis, while also enabling automated cleaning and maintenance. The system's automated control and display capabilities enable precise parameter adjustments based on real-time data, ensuring optimal milk production and cow health.

15. Air-Driven Rotating Nipple Washer with Safety-Activated Cleaning Cessation Mechanism

JIN WENGE, 2017

A nipple washer for dairy cows that provides a comprehensive cleaning system with enhanced safety and efficiency. The system incorporates an air-driven cleaning mechanism that rotates the washing tub to distribute cleaning solution and air mixture for thorough cleaning. The cleaning solution is mixed with air to create a gentle, massaging action that stimulates the nipple while preventing cross-contamination. The system features a safety switch that automatically turns off the cleaning process when a predetermined condition is met, ensuring optimal milk quality while minimizing labor intensity and equipment wear. The design enables continuous cleaning without the need for manual scrubbing, reducing labor costs and improving milk production.

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16. Milk Line Cleaning Device with Motorized Rotating Wiper and Fan-Driven Fluid Displacement System

Federal State Budgetary Scientific Institution All-Russian Research Institute of Electrification of Agriculture, FEDERALNOE GOSUDARSTVENNOE BJUDZHETNOE NAUCHNOE UCHREZHDENIE VSEROSSIJSKIJ NAUCHNO-ISSLEDOVATELSKIJ INSTITUT ELEKTRIFIKATSII SELSKOGO KHOZJAJSTVA, 2016

A device for cleaning milk lines in milking machines that achieves enhanced cleaning performance through a novel fan-driven cleaning system. The device comprises a motorized cleaning system with a rotating wiper that discharges cleaning fluid through an annular channel between the machine's pipeline and the motor. The rotating wiper creates a high-velocity impaction zone that effectively removes milk residue, while the fan-driven mechanism provides the necessary thrust to displace cleaning fluid. The system's unique design enables continuous cleaning motion through the pipeline, eliminating the need for rotational motion in traditional cleaning systems.

17. Integrated Milking System with Automated Milking, Sterilization, Storage, and Waste Management Functions

AGRICULTURAL INFORMATION INST CAAS, 2016

Intelligent milking system that streamlines animal care operations through automated milking, sterilization, and storage processes. The system integrates milking, sterilization, storage, and waste management functions into a single, automated facility that replaces manual labor. The system features a milking parlor, teat cups, milk storage, sterilization processing, and a storage container. The system's control system coordinates these functions through a network of sensors and actuators. This integrated approach enables efficient milking, sterilization, and storage operations while providing comprehensive animal care.

CN105941165A-patent-drawing

18. Milking Machine with Integrated Automated Cleaning System for Teat Cups and Tank

Tianjin Wuqing District Da Lao Li Cattle Farming Co., Ltd., TIANJIN WUQING DALAOLI BEEF FARMERS CO LTD, 2016

A milking machine for dairy farms that eliminates the need for manual sterilization, breast massage, and tank cleaning after milking, while maintaining the traditional teat cup milking and vacuum system. The machine incorporates an integrated cleaning system that automatically cleans the milking equipment and tank after each milking cycle, eliminating the need for manual cleaning procedures. This design addresses the challenges associated with traditional milking machines while maintaining the efficiency and quality of milk production.

19. Milking Cup System with Integrated Pressure Sensors and Dynamic Valve Control

JIANGSU SILVER FERN INTELLIGENT TECH CO LTD, 2016

A milking cup system with automatic leak detection and control through a novel pressure monitoring architecture. The system integrates pressure sensors into the milking cup design, specifically targeting the liner and pulsation chamber, to monitor pressure changes. These sensors feed back pressure data to a controller that activates the three-way valve. By dynamically controlling the valve position, the system prevents excessive pressure drops during teat milking and prevents foreign object contamination. This approach enables early detection of liner damage, ensuring efficient milking while minimizing waste and maintaining animal health.

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20. Milk Collection Device with Integrated Detection, Processing, and Automated Cleaning Control System

BEIJING SHOUNONG LIVESTOCK DEV CO LTD, 2016

A milk collection device that enhances milk quality through advanced automation and cleaning systems. The device features a milking apparatus, conduit, milk storage means, and a control unit that integrates multiple functions: detection, processing, and cleaning. The control unit monitors milking operations, detects milk quality issues, and automatically initiates cleaning cycles to maintain optimal storage conditions. This integrated approach ensures consistent milk quality while extending equipment lifespan.

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21. Milking System with Pulsating Mechanism and Integrated Ozone Sterilization for Teat Cups

22. CIP Cleaning System with Dedicated Hot Water Tank Adjacent to Acid Tank and Elevated Clean Water Tank Configuration

23. Milking System with Integrated Ozone-Based Cleaning and Sterilization Mechanism

24. Dairy Milking Equipment with Integrated Vacuum-Powered Self-Cleaning System

25. Dairy Milking System with Pulsation Prevention and Integrated Water Flow Control Mechanism

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