Milk Liner Silicone

Milk Liner Silicone

Core Product Overview

Milk Liner (Milking Cup Liner) is a core component of milking equipment, installed in the milking cluster and in direct contact with cows' teats. As a key silicone/rubber consumable for milking, it realizes vacuum pulsation to simulate manual milking, ensuring efficient milk collection and cow udder health. It isolates milk from the external environment to guarantee raw milk hygiene, serving as a core consumable for ranch milking systems.


Core Functions and Roles

Milking Drive: Relies on the milking machine's vacuum pulsation to realize periodic relaxation and contraction, simulating manual milking rhythm for efficient milk extraction, avoiding teat damage from prolonged pressure.

Hygienic Protection: Isolates milk from the milking cluster, preventing bacterial contamination and avoiding direct contact between teats and metal cup bodies to reduce mechanical stimulation and infection risks.

Udder Health Protection: Adapts to different teat sizes to reduce negative pressure damage, teat congestion and mastitis, ensuring cow lactation health.

Adaptability Matching: Matches different milk cup specifications and milking equipment, suitable for cows of different breeds and sizes.


Core Product Parameters and Model Classification


Core Dimensional Parameters (Universal)


Parameter ItemDescription
Total Length148mm-325mm, determining assembly adaptability with the milking cluster
Inner Diameter at Teat End8mm-13.5mm, matching cow teat size
Outer Diameter at Cup Body End20mm-25.5mm, adapting to corresponding milk cup sizes
Diameter at Thinnest Middle Part19.4mm-31mm, affecting milking negative pressure effect
Adaptable Milk Cup SizeMatches milk cup inner diameter, length and milk outlet size for tight assembly


Mainstream Model Classification (By Material/Adaptable Scenario)

Black Rubber/Silicone Milk Liners (Mainstream Universal Model)

Representative Models: DDL, 230, 068, 201S, 240, 00U, 009, IP10/IP15/IP25, 400MAX, 016U, 019U, 295U, 023, 01

Features: Wear-resistant, anti-aging, good elasticity, suitable for most conventional milking equipment and cow breeds

Applicable Scenarios: Large-scale dairy farms, conventional milking stations, daily milking of various cow breeds

White Transparent Silicone Milk Liners (Special Adaptation Model)

Representative Models: G320, G321

Features: Food-grade transparent silicone, better hygiene, intuitive observation of milking status and liner wear, softer texture, less teat irritation

Applicable Scenarios: Ranches with high hygiene requirements, cows with sensitive teats, small-scale milking stations


Detailed Content

Product Structure and Design Features

Product Structure and Design Features
1. Three-Section Structure
Cup Body End: Sealed connection with metal/plastic milk cups to ensure vacuum tightness and avoid air leakage affecting milking efficiency
Middle Contraction Area: Core functional area, realizing contraction milking and relaxation massage through pulsating vacuum, directly affecting milking comfort and efficiency
Teat End: Rounded port design to reduce mechanical friction, adapting to different teat sizes
2. Material Characteristics
Adopts food-grade natural rubber/medical-grade silicone, meeting food contact safety standards, no odor, no harmful substance precipitation
Excellent fatigue resistance, withstanding hundreds of thousands of pulsation cycles, long service life
High and low temperature resistant, suitable for ranch daily CIP cleaning and disinfection processes
3. Model Differentiation Design
Different port sizes and middle section structures are designed according to cow teat length and diameter; some models adopt corrugated and thickened designs to enhance durability and milking stability.

Selection and Usage Maintenance

Selection and Usage Maintenance
1. Core Selection Principles
Match teat size: 8mm-9.5mm inner diameter for thin teats; 10mm-13.5mm for thick teats
Match existing milking equipment and milk cup specifications to ensure tight assembly
Combine ranch scenarios: Large-scale ranches choose universal wear-resistant models; high-hygiene ranches choose transparent silicone models
2. Usage and Maintenance Points
Regular Replacement: Replace every 2000-3000 milking times or 3-6 months to avoid aging, cracking and reduced milking efficiency, and reduce mastitis risks
Cleaning and Disinfection: Perform CIP cleaning after each milking, use neutral disinfectants, avoid strong acid and alkali corrosion
Installation and Inspection: Check assembly tightness after installation to prevent air leakage; regularly inspect for cracks, wear and reduced elasticity, and replace problematic products in time

Product Value and Industry Significance

Product Value and Industry Significance
As a core consumable for milking, milk liners directly affect cow health, raw milk quality, milking efficiency and equipment service life: protecting cow udder health, reducing mastitis incidence, ensuring raw milk hygiene and improving milk grade; improving milking speed, reducing labor costs; reducing milking equipment wear and extending service life.
Supplementary Note
The full range of milk liners covers conventional universal models and special adaptation models, meeting the milking needs of ranches of different scales and cow breeds. All products adopt food-grade materials, complying with animal husbandry equipment safety standards, and are core supporting consumables for ranch milking systems.

  • Customization Advantages and Commitments
    Through flexible production processes and highly customized services, GYF provides global customers with adaptable and innovatively designed silicone products. Our customization capabilities extend beyond cross-sectional shapes and colors — we can fully adjust products based on your functional requirements (such as high-temperature resistance, flame retardancy, conductivity, anti-aging, etc.), ensuring every product perfectly fits your application scenarios and brand positioning.
  • GYF: Custom Extruded Silicone Products for High-Quality Solutions
    GYF is committed to providing high-quality customized extruded silicone products for various industries. With precise extrusion technology, efficient production processes, and strict quality control, we help customers enhance product competitiveness and meet stringent industry standards. Whether for medical, automotive, food-grade, consumer electronics, or industrial equipment sectors, we deliver personalized and innovative silicone solutions tailored to your specific needs.
  • Choosing GYF means unlocking greater value — you will gain:
    Long-term consistent production reliability
    Global certification support
    Fast market entry
    Multi-material integrated design for cost reduction and performance improvement
    Reduced defect rates and increased mass production returns
    Capability for mass-producing micro-sized and complex structural components
    Realization of differentiated product competitiveness
  • Choose GYF for Quality Advantages
    ✔ Full-process tracking: Material → Mold → Molding → Inspection → Packaging
    ✔ Automation reduces errors: Independent of manual quality control, suitable for global mass production
    ✔ Complete certifications for export support: FDA, ISO13485, IATF16949, ISO22000, etc.
    ✔ Strict testing ensures reliability: Applicable to high-demand markets such as medical-grade, industrial-grade, and automotive-grade
    ✔ Ultra-high batch consistency: Low defect rate and high efficiency to ensure the stability of customers' supply chains
ODM Silicone & Rubber Product