Outboard Chain Connector DIN 22253 Manufacturer for Heavy-Duty Double Hole Mining Link

Outboard Chain Connector DIN 22253 Manufacturer for Heavy-Duty Double Hole Mining Link

The open-type chain connector is specifically designed for connecting double-sided chains. Its size and shape meet the standard requirements of MT/71-1997 and DIN 22253. In the manufacturing process, high-alloy steel rich in Cr, Ni, and Mo alloy elements is selected, along with multiple heat treatment processes, to ensure compatibility with the sprocket, safe operation, and excellent mechanical performance and fatigue life.

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  • YD KS DIN 22253 Outboard Chain Connectors for Dual-Chain Systems

    With over 20 years of manufacturing expertise, YD specializes in producing high-strength Outboard Chain Connectors, also known as double-hole links or U-shackles, for demanding mining applications. Our connectors are strictly engineered in accordance with DIN 22253 standards, ensuring precise dimensional control and reliable mechanical performance in dual-chain scraper conveyor systems.

    These connectors play a vital role in linking DIN 22252 round link mining chains to conveyor flight bars. As a key load-bearing component, the outboard connector must withstand constant impact, abrasion, and high tensile stress in underground environments. To ensure long-term durability, we forge each unit from premium CrNiMo alloy steel or equivalent high-grade materials such as 23MnNiCrMo54. Advanced heat treatment processes, including quenching and tempering, provide an optimal balance of surface hardness and core toughness.

    Key Technical Specifications

    • Standard Compliance: Fully manufactured and inspected according to DIN 22253 requirements.

    • Chain Compatibility: Designed for seamless integration with DIN 22252 round link mining chains.

    • Material: High-grade alloy steel for superior impact resistance and fatigue strength.

    • Load Capacity: High-tensile strength meeting or exceeding Grade 80 and Grade 100 performance levels.

    • Surface Finish: Available in shot-blasted, black oxidized, or wax-coated finishes to enhance corrosion resistance in humid and abrasive mining conditions.

    Why Choose YD DIN 22253 Connectors?

    • Precision Machining: Produced to exact DIN tolerances for secure connection between chain and flight bar.

    • Strict Quality Control: Each connector undergoes 100% Magnetic Particle Inspection (MPI) and proof load testing.

    • Factory-Direct Supply: Competitive wholesale pricing with OEM and custom manufacturing options for specialized projects.

    Applications

    YD DIN 22253 outboard connectors are widely used in dual-chain scraper conveyors within coal and mineral mining operations, as well as other heavy-duty bulk material handling systems requiring a robust and reliable chain-to-flight-bar connection.

    YD KS DIN 22253 Outboard Chain Connectors for Dual-Chain System

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