Round steel link chain making for 30+ years
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SHANGHAI CHIGONG INDUSTRIAL CO., LTD

(round steel link chain manufacturer)

Round Link Chains in Bulk Materials Handling: Capabilities and Market Positioning of SCIC Chains

Round link chains are vital components in the bulk materials handling industry, serving industries such as cement, mining, and construction where efficient movement of heavy, abrasive, and corrosive materials is critical. In the cement industry, for example, these chains are essential for transporting materials like clinker, gypsum, and ash, while in mining, they handle ores and coal. Their durability and strength make them indispensable for conveying and elevating bulk materials under challenging conditions.

● Mining & Minerals: Heavy-duty conveyors and bucket elevators transporting ore, coal, and aggregates. Chains endure high-impact loading and abrasive wear.

● Agriculture: Grain elevators and fertilizer conveyors, where corrosion resistance and fatigue strength are essential.

● Cement & Construction: Vertical bucket elevators handling clinker, limestone, and cement powder, subjecting chains to extreme abrasion and cyclic stresses.

● Logistics & Ports: Ship-loading conveyors for bulk commodities like grains or minerals, requiring high tensile strength and corrosion protection.

round link chains

Industry and Equipment Applications

In bulk materials handling, round link chains are widely used in equipment such as bucket elevators, chain conveyors, and scraper conveyors (including submerged scraper conveyors, i.e., SSC system). These systems are designed to move large volumes of materials efficiently. For instance, bucket elevators lift cement materials vertically, while scraper conveyors drag abrasive materials like coal, ash or ore along troughs. The cement industry, a key focus for SCIC, relies heavily on these chains to maintain production efficiency, with SCIC supplying large-sized chains like 30x84mm (per DIN 766) and 36x126mm (per DIN 764), paired with shackles (T=180mm and T=220mm, respectively), to meet these demands.

Design and Specifications

The design of round link chains for conveying and elevating bulk materials prioritizes robustness and wear resistance. Typically made from CrNi alloy steel, these chains undergo case hardening processes to achieve surface hardness levels to 800 HV1 for chains and 600 HV1 for shackles (e.g., 30x84mm chains per DIN 766), with carburized depth at 10% of diameter, extends lifespan in abrasive materials like silica or iron ore (Deep carburizing, with effective hardness 550 HV at 5%–6% depth, prevents surface spalling under cyclic loading. SCIC’s heat treatment includes oil quenching and tempering to retain core toughness >40 J impact strength), ensuring longevity under abrasive conditions while retaining core toughness. SCIC’s chains exemplify this, with their large-sized offerings engineered for high tensile strength and durability. These specifications allow them to withstand the heavy loads and harsh environments common in bulk materials handling, making them ideal for applications like cement production and mining operations.

Challenges in Bulk Materials Handling

Round link chains face significant challenges, including exposure to abrasive materials, high temperatures, and corrosive environments. In the cement industry, chains must endure hot clinker and dusty conditions, while mining applications involve transporting jagged, heavy ores. To counter these issues, advanced manufacturing techniques like carburizing enhance surface hardness, as seen in SCIC’s products. Their case-hardened chains and shackles provide exceptional wear resistance and mechanical strength, addressing the rigors of bulk material transport effectively.

Market Prospects and SCIC’s Role

The market for round link chains remains robust, fueled by the growing need for efficient material handling solutions across industries. SCIC stands out with its proven track record in the cement industry, supplying high-quality, large-sized chains and shackles that meet stringent standards. Their commitment to quality control ensures reliability, while their sales references highlight successful applications in demanding environments. With expertise in manufacturing CrNi alloy steel chains case-hardened to 800 HV1, SCIC is well-positioned to serve the broader bulk materials handling industry, delivering durable, high-performance solutions tailored to customer needs.

Round link chains are critical to bulk materials handling, and SCIC’s specialized offerings, backed by rigorous quality standards, make us a trusted partner for industries requiring dependable chain solutions.

Post time: Jul-11-2025

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