YD EX DIN 22258-2 Horizontal Lock-type Rapid Connecting Links for Heavy-Duty Flat Chains

YD EX DIN 22258-2 Horizontal Lock-type Rapid Connecting Links for Heavy-Duty Flat Chains

The flat chain connector for mining chains is specifically designed for connecting round link chains and compact chains. The forged component is made from high-quality high-alloy steel and is completed through precise machining and unique heat treatment processes, providing excellent tensile performance and fatigue life.

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Horizontal Lock-Type Rapid Connecting Links for Mining Chains

In high-output mining operations, unplanned downtime can result in significant production losses. YD’s Horizontal Lock-Type Rapid Connecting Link is specifically engineered to minimize conveyor stoppages by enabling fast, secure, and reliable chain connections in Armored Face Conveyor (AFC) systems. Designed for demanding underground conditions, this rapid joiner combines speed, strength, and safety in one optimized solution.

High-Efficiency Design for Horizontal Chain Systems

Developed for horizontal chain orientation, this lock-type connector features an innovative mechanical locking structure that allows quick installation without sacrificing tensile performance. Fully compliant with DIN 22258-1 standards, it is ideal for both emergency chain repairs and scheduled maintenance in abrasive, high-impact mining environments. The design ensures stable operation under heavy dynamic loads while maintaining perfect alignment with chain links and sprockets.

Key Technical Specifications

  • Rapid Installation: The advanced lock-type mechanism allows assembly within seconds using standard hand tools, reducing labor time and operational downtime.

  • High Mechanical Strength: Forged from premium CrNiMo alloy steel and precisely heat-treated to match Grade 80 and Grade 100 mining chain strength requirements.

  • Horizontal Precision Engineering: Optimized geometry ensures smooth passage through drive sprockets, chain wheels, and return units without interference.

  • Strict Quality Assurance: Each connecting link undergoes 100% Magnetic Particle Testing (MT) and proof load testing to eliminate defects and ensure reliability in deep mining applications.

  • Enhanced Durability: Surface treatments such as shot blasting and anti-corrosion coating improve wear resistance in wet and abrasive environments.

Primary Applications

  • Rapid repair of scraper conveyor chains

  • Emergency joiners in longwall mining systems

  • Heavy-duty connections for slag extractors

  • Reliable linking solutions for bucket elevators

Custom OEM Services

As a professional mining chain connector supplier, YD provides OEM and custom manufacturing services tailored to specific tensile strength grades, dimensions, and working conditions. Our engineering team works closely with clients to deliver durable, high-performance solutions that maximize operational efficiency and long-term reliability in global mining projects.

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