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    • Industrial Heavy-Duty Gearboxes

    Large gear units for mills, cranes, cooling towers, conveyors, and high-load applications.

    Industrial heavy-duty gearboxes are enclosed gear drives engineered for high torque density, continuous duty and elevated shock loading in process and material-handling plant. They cover parallel-shaft helical, right-angle helical-bevel and herringbone (double-helical) architectures, transmitting power from a few kW to several megawatts while reducing motor or turbine speed to the slow, high-torque output that extruders, cranes, hoists, cooling-tower fans, rolling mills, sugar mills and conveyors demand. Unlike general gearmotors, these units are selected on application service factor and thermal rating as much as on nominal torque.

    Designs span single- to four-stage trains with total ratios from roughly 3:1 to over 100:1, output torque into the hundreds of thousands of Nm, and efficiency near 97-98% per helical pass. Rating follows AGMA 2001/2101 and ISO 6336 for load capacity, with enclosed-drive practice to AGMA 6010/6013 and gear quality to ISO 1328 / AGMA 2015. Service-factor selection is duty-driven: steady process loads may use SF around 1.25-1.5, while crane, hoist and mill duty per FEM/ISO classes (M5-M8) and AGMA load-class tables can demand SF 2.0-3.0 to cover shock and reversing.

    Gears are case-hardened, ground alloy steel (18CrNiMo7-6 / 20MnCr5) in fabricated or cast housings, on heavy-duty bearings with forced or splash lubrication and, where heat load is high, oil coolers or fan cooling. Shafts run in generously sized roller bearings to carry radial, axial and moment loads.

    Integration options include free input shaft, motor or turbine coupling, solid or hollow output with shrink disc or flange, foot or shaft mounting, backstops, and synthetic PAO ISO VG 220/320 oil sized to ambient and thermal duty.

    Himalay's MSME partners manufacture heavy-duty gear drives with gear-rating to AGMA/ISO 6336, ISO 9001 quality systems, load and efficiency test reports and traceability; CE (Machinery Directive), ATEX/IECEx for hazardous areas, and SABER (Saudi Arabia) coordinated as part of the standard order flow.

    Extruder Gearbox
    Extruder Gearbox
    Crane Duty Gearbox
    Crane Duty Gearbox
    Hoist Gearbox
    Hoist Gearbox
    Cooling Tower Gearbox
    Cooling Tower Gearbox
    Rolling Mill Gearbox
    Rolling Mill Gearbox
    Sugar Mill Gearbox
    Sugar Mill Gearbox
    Conveyor Gearbox
    Conveyor Gearbox

    Frequently Asked Questions

    How do I choose the right heavy-duty gearbox for high-shock duty?
    Selection turns on application service factor, not just nominal torque. Identify the duty: steady process drives may be sized around AGMA SF 1.25-1.5, whereas crane, hoist, reversing-mill and similar shock or cyclic loads — classified by FEM/ISO duty class M5-M8 or AGMA load class — typically require SF 2.0-3.0 so the gear set survives peak and starting torque. Then check the thermal rating against ambient temperature and run hours, since a unit can be torque-adequate yet thermally limited in a hot, enclosed plant. Sharing the load spectrum, daily hours, reversals and ambient lets a partner size both the mechanical and thermal capacity correctly rather than under-rating on steady torque alone.
    What is the typical MOQ for heavy-duty gearboxes?
    Because these are larger engineered units, MOQ is low: many crane, mill and extruder drives are quotable as single units or in small batches of 2-5 per configuration. Smaller standard frames in a series may carry a modest MOQ of 5-10. Mixed packages across one project spec are generally accepted.
    Which certifications and reports are available?
    Where specified, partners provide CE under the Machinery Directive, ATEX/IECEx for hazardous-area builds, ISO 9001 quality systems, and gear load, efficiency and (on larger units) no-load run and temperature-rise test reports referencing AGMA 2101/ISO 6336. Material certificates and heat-treatment traceability for the gear train can be arranged.
    What ratios, mounting and service factors can be configured?
    Total ratios run from roughly 3:1 to over 100:1 across single to four stages, in parallel-shaft, right-angle and herringbone layouts, foot or shaft mounted, with solid or hollow output and shrink disc or flange. Service factor is selected to the duty class — higher for crane, hoist and mill shock loads — and lubrication is mineral or synthetic PAO ISO VG 220/320 with cooling specified against ambient temperature and thermal rating.
    Do partners build to OEM and end-client specifications?
    A subset of Himalay's partner network supplies heavy-duty drives to OEMs in cement, steel, sugar, material handling and EPC project supply. Share your spec, duty class or drawing at inquiry stage and we match a qualified partner; end-client approvals and witnessed testing can be arranged on a supplier-development track.
    What is the lead time for engineered heavy-duty units?
    Larger engineered gearboxes typically take 10-16 weeks to manufacture and test, depending on casting, gear-cutting and bearing lead times. Full CIF to Rotterdam, Antwerp, Jebel Ali or Dammam is generally 14-20 weeks door-to-door for engineered units, with smaller standard frames closer to 8-12 weeks.
    Request a Quote for Industrial Heavy-Duty Gearboxes
    Padamade Private Limited
    IndiaHiranandani Estate, Patlipada, Off G.B Road, Thane West, Maharashtra, India, 400607
    NetherlandsBreitnerstraat, 3015 XG Rotterdam
    UAE804, KM Trading Building, Najda Street, Abu Dhabi City, Abu Dhabi
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