Regal Rexnord
Engineered Steel Chain
Regal Rexnord engineered steel chain is a category of heavy - duty, large - pitch, welded or offset - sidebar conveyor chain constructed from precision - fabricated alloy - steel components, designed specifically for the high - tensile loads, abrasive conditions, and continuous - duty cycles of bucket elevators, drag conveyors, and heavy apron feeders in cement, mining, steel, forest - products, and bulk - terminal operations.Under the Rexnord and Link - Belt brands, engineered steel chain encompasses the WH, WHD, C - type, and HD - class series — chains with pitches from 4 inches to over 12 inches and working loads exceeding 100,000 pounds — that form the material - handling backbone of the world’s largest bulk - processing facilities.Plant reliability engineers specifying replacement chains for these critical applications choose Regal Rexnord engineered steel chain for the documented material properties, precision pitch control, and heat - treatment quality that ensure dimensional compatibility with existing sprockets, maximum joint wear life in abrasive dust, and the tensile - fatigue strength to survive years of 24 / 7 operation without the catastrophic chain breaks that can severely damage equipment and endanger personnel.
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Massive Tensile Strength & Working Loads
Alloy - steel sidebar and pin construction provides working loads from 10,000 to over 100,000 pounds per strand, reliably handling the high - capacity conveying demands of mining, cement, and steel - mill operations.
Precision Pitch Control for Sprocket Engagement
Links manufactured to tight pitch tolerances ensure smooth, quiet sprocket engagement and even load distribution across the sprocket teeth — maximizing the service life of both chain and sprocket.
Induction - Hardened Joints for Abrasive Service
Pin ODs and bushing bores selectively hardened to 55 - 60 HRC withstand the abrasive dust that accelerates wear in cement, lime, and mineral - handling conveyors.
Offset & Welded Sidebar Designs
Welded steel construction provides rigidity and joint strength; offset sidebar designs provide the flexing capability for lateral bending on curved - path conveyors without separate guide systems.
Custom Attachments & Flight Configurations
Engineered steel chain can be configured with an extensive range of A, K, and custom attachments for mounting flights, buckets, and pusher bars matched to the specific material - handling function.
Stainless & Specialty Alloy Options
304 / 316 stainless steel and other corrosion - resistant alloys for food - processing, chemical, and salt - handling applications where carbon - steel chain life is measured in months.
Engineered Steel Chain in Cement & Mining Bucket Elevators
Cement and mining bucket elevators represent the extreme of chain demands: lifting dense, abrasive materials(clinker, limestone, iron ore) at rates of hundreds of tons per hour, in environments of pervasive dust and often elevated temperatures.A chain break in these applications can release the entire bucket - and - chain assembly to crash into the elevator boot, causing casing damage, fires from impact sparks, and weeks of production downtime.Regal Rexnord engineered steel chain for these applications is manufactured with the metallurgy, pitch precision, and fatigue - rated joint designs validated for the specific elevator height, speed, and bucket weight.Our application engineers use the elevator’s design specifications to calculate chain pull, joint pressure, and safety factors, confirming that the selected chain series operates within its rated fatigue - life envelope for the target service interval — typically 20,000 + operating hours between overhauls.
Drag Conveyor Chain & Apron Feeder Chain Engineering
Drag conveyors and apron feeders use engineered steel chain to drag or carry bulk materials horizontally or on an incline through enclosed troughs or over heavy steel pans.These applications generate high tensile chain loads from the material drag and pan weight, and the chain must articulate around the head and tail sprockets while maintaining flight - to - trough clearances that prevent jams.Regal Rexnord engineered steel chain for drag and apron service is manufactured with the specific flight - attachment bolt patterns, sidebar profiles, and joint tolerances for these functions.For apron feeders in primary - crusher applications — where 4 - foot boulders are dropped onto the feeder pans — our chain designs include the shock - absorbing sidebar geometries and hardened joint surfaces that survive impact loads far exceeding the steady - state working load.The combination of impact toughness and wear resistance defines engineered steel chain’s value in these extreme - material - handling environments.