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DXG (ATA) Series Shaft-Mounted Gearbox
Shaft Mounted Gearbox
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DXG (ATA) Series Shaft-Mounted Gearbox

The DXG (ATA) Series Shaft-Mounted Gearbox is a rugged, high-torque helical-bevel reducer designed for direct mounting onto the driven shaft of conveyors, mixers, crushers, and other heavy industrial equipment—eliminating the need for couplings, alignment fixtures, or complex base frames.

Commonly used in quarrying, mining, cement plants, power stations, and bulk material handling systems, this gearbox delivers exceptional reliability under extreme shock loads, dust, vibration, and continuous operation. Its compact “hanging” design saves space, reduces installation time, and minimizes maintenance costs.

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    product Information

    Key benefits include

    Direct shaft mounting with torque arm support
    High power density and overload capacity
    Self-aligning bushing for easy installation
    Sealed-for-life lubrication system
    Optimized for harsh, outdoor, and dusty environments
    Engineered to meet the demanding requirements of heavy industry, the DXG (ATA) series ensures maximum uptime and operational efficiency—even in the most challenging conditions.
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    How to Select the Right Model

    1 Stage: ATA30, ATA35, ATA40, ATA45, ATA50, ATA60, ATA70, ATA80, ATA100, ATA125
    2 Stage: ATA35D, ATA40D, ATA45D, ATA50D, ATA60D, ATA70D, ATA80D, ATA100D, ATA125D

    Models

    Output Bore Dia.

    Maximum Torque

    Nominal Ratio(i)

    ATA30

    30mm

    180Nm

    5
    7
    10
    12.5
    15
    20
    25
    31

    ATA35

    35mm

    420Nm

    ATA40

    40mm/45mm

    950Nm

    ATA45

    45mm/50mm/55mm

    1400Nm

    ATA50

    50mm/55mm/60mm

    2300Nm

    ATA60

    60mm/70mm

    3600Nm

    ATA70

    70mm/85mm

    5100Nm

    ATA80

    80mm/100mm

    7000Nm

    ATA100

    100mm/125mm

    11000Nm

    ATA125

    125mm/135mm

    17000Nm

    Product Advantages

    Shaft-Mounted Design Saves Space & Cost

    Mounts directly onto the driven shaft—no need for foundations, couplings, or alignment. Ideal for retrofits and space-constrained installations.

    Integrated Torque Arm (ATA System)

    The Anti-Torque Arm (ATA) absorbs reaction forces and prevents gearbox rotation, ensuring stable operation without stressing the driven equipment.

    High Shock Load Capacity

    Helical-bevel gear geometry distributes load across multiple teeth, while hardened alloy steel gears withstand frequent overloads common in mining and crushing applications.

    Self-Aligning Taper Lock Bushing

    Allows ±1° angular misalignment during installation and enables quick, keyless mounting/removal—reducing downtime during maintenance.

    Sealed & Lubricated for Life

    Double-lip radial seals and high-quality synthetic oil/grease ensure long service intervals, even in dusty or wet environments.

    Backstop Option for Inclined Conveyors

    Optional integral backstop (roller or cam type) prevents reverse rotation on upward conveyors during power failure—enhancing safety and compliance.

    Component Materials

    1 Stage: ATA30, ATA35, ATA40, ATA45, ATA50, ATA60, ATA70, ATA80, ATA100, ATA125
    2 Stage: ATA35D, ATA40D, ATA45D, ATA50D, ATA60D, ATA70D, ATA80D, ATA100D, ATA125D

    Housing:

    Nodular Cast Iron(Ductile Iron) QT600

    Gears Profile:

    Hardened Helical Gears

    Gears Material:

    20CrMnTi

    Gears Processing:

    Carburizing, Quenching, Grinding

    Gears Hardness:

    Surface Hardness: HRC58-62, Inner Hardness: HBS156-207

    Gears Accuracy:

    6 Class

    Shafts Material:

    40Cr

    Input Configurations:

    Keyed Solid Shaft Input, IEC Normalized Motor Flange

    Output Configurations:

    Keyed Hollow Shaft Output

    Oil Seal:

    TAIWAN SOG

    Bearings:

    NSK, SKF, FAG, HRB, ZWZ, LYC

    Spare Parts:

    Shaft mounted gearbox torque arm, Optional Backstop

    Component Materials

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    Applications

    Particularly suited for inclined or horizontal conveyor drives in remote or outdoor locations with limited maintenance access.

    The DXG (ATA) Series is widely used in heavy-industry sectors where reliability and ease of installation are critical:

    • Mining & Quarrying: Belt conveyors, apron feeders, crushers, screens

    • Cement & Lime Plants: Clinker coolers, raw mills, bucket elevators

    • Power Generation: Coal handling systems, ash conveyors

    • Bulk Material Handling: Ship loaders/unloaders, stackers, reclaimers

    • Steel & Foundries: Slag conveyors, scrap handling lines

    • Aggregate Processing: Sand & gravel washing plants, vibrating feeders

    product Information

    Model Selection Guide

    To select the correct DXG (ATA) gearbox, please provide the following information:
    Driven Equipment Type (e.g., belt conveyor, crusher, mixer)
    Required Output Torque (including service factor for shock loads)
    Driven Shaft Diameter (to match output bore with taper bushing)
    Motor Power & Speed (kW and rpm)
    Incline Angle (if applicable—determines need for backstop)
    Environmental Conditions (dust, moisture, temperature, explosion risk)
    Our engineering team offers free sizing calculations, CAD models (STEP/IGES), and application reviews to ensure optimal performance and longevity.
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    product Information

    Maintenance

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    The DXG (ATA) Series is designed for low-maintenance operation, but periodic checks ensure maximum service life:
    Initial Oil Change: After first 300–500 operating hours
    Regular Oil Inspection: Every 2,000–3,000 hours (or annually)—check for contamination, metal particles, or degradation
    Oil Replacement: Every 10,000–15,000 hours (depending on temperature and load)
    Seal & Bushing Inspection: Annually—look for leaks or wear
    Torque Arm Bolt Tightening: Verify bolt torque every 6 months in high-vibration environments
    Backstop Function Test (if equipped): Perform quarterly operational checks

    Inspection and Maintenance

    All units feature large inspection ports, magnetic drain plugs, and oil level sight glasses for easy servicing. 

    Use only recommended ISO VG 220 or 320 industrial gear oil unless specified otherwise.
    Note: Never operate the gearbox without proper lubrication or with a damaged torque arm—this may cause catastrophic failure.
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