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    TECO conveyor motor control: torque ramp lessons for mine mechanical engineers

    March 30, 2026|

    Reviewed by Tom Sullivan

    TECO conveyor motor control: torque ramp lessons for mine mechanical engineers

    First reported on Australian Mining

    30 Second Briefing

    TECO Australia and New Zealand is promoting controlled conveyor motor starting to cut drivetrain stress in mining bulk handling systems, focusing on how torque and current ramps are managed under load. By using electronic soft starters and variable speed drives instead of direct-on-line starting, TECO aims to reduce shock loading on gearboxes, couplings and belts, particularly on long overland conveyors and high-inertia reclaim systems. The approach targets fewer mechanical failures, longer component life and more stable start-up on heavily loaded conveyors.

    Technical Brief

    • TECO’s electronic soft starters apply controlled voltage ramps to limit inrush current during conveyor acceleration.
    • Variable speed drives from TECO allow programmable acceleration/deceleration profiles tailored to each conveyor’s inertia.
    • Motor control schemes integrate torque limiting to prevent transient overloads on shafts and couplings.
    • TECO engineers configure start profiles based on measured load conditions rather than fixed time-based ramps.
    • Protection functions include overload, phase loss and stall detection to trip motors before thermal damage.
    • Integrated braking control in VSDs manages downhill or regenerative conveyors to avoid belt run‑on incidents.
    • Remote monitoring of start events enables maintenance teams to correlate abnormal torque spikes with mechanical issues.

    Our Take

    Safety-tagged product pieces in our database increasingly focus on drive and motion control rather than guarding alone, suggesting operators in Australia and New Zealand are targeting failure modes like conveyor drivetrain shock as a cost and downtime lever.

    For Australian and New Zealand mines, conveyor-related incidents feature prominently in the safety-tagged coverage, so TECO’s focus on motor control implies a shift towards engineering out risks at the design and controls level rather than relying solely on procedural controls.

    With no commodity specified, this kind of conveyor motor control solution is likely being pitched as ‘commodity-agnostic’ infrastructure; in our Mining category, such cross-cutting plant upgrades are often adopted first by large multi-commodity operators who can spread the capex across several sites.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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