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MTDSF-50 Electromagnetic Eddy Current Brake for Drilling Rigs - China Suppliers and Factory Solutions
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MTDSF-50 Electromagnetic Eddy Current Brake for Drilling Rigs - China Suppliers and Factory Solutions

Introducing the MTDSF 50 electromagnetic eddy current brake, a cutting-edge solution designed for both offshore and onshore drilling rigs. As one of the leading products from China Suppliers, this innovative brake utilizes the principle of electromagnetic induction to provide wear-free braking with exceptional torque output. Its long service life and minimal maintenance requirements make it a top choice for drilling operations, The eddy current braking system significantly reduces the wear on brake blocks, which extends the life of the brake drum and eases the workload for drillers. During tripping operations, the need for the main brake is minimized, as the braking torque can be accurately adjusted by regulating the excitation current. This allows for precise control of the drill string lowering speed, Even at low rotation speeds down to 50 rpm, the MTDSF 50 brake maintains up to 75% of its maximum torque, ensuring reliable performance under heavy load conditions. Trust this high-quality brake from a prominent China Factory to enhance the efficiency and safety of your drilling operations
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    Product Details

    Product Specifications

    Product Name

    Electromagnetic Eddy Current Brake, Eddy Current Brake (ECB), Electromagnetic Brake

    Chinese Model

    MTDSF-50

    Rated Braking Torque

    55,000 N·m

    Applicable Drilling Depth (with 5″ Drill Pipe)

    5,000 m

    Number of Coils

    4

    Rated Resistance per Coil

    6.54 Ω ±10%

    Insulation Class

    Class H

    Coil Connection

    Series-Parallel

    Maximum Excitation Power

    15 kW

    Maximum Excitation Current

    45 A

    Cooling Airflow

    12,000 m³/h

    Weight (including control system)

    7,280 kg

    Overall Dimensions (mm)

    2598 × 1850 × 1613

    Third-Party Witness & Inspection Report

    Bureau Veritas (BV), CCS, ABS, SJS etc.
    Product Features
    ⚡ The air-cooled electromagnetic eddy current brake, equipped with forced ventilation, retains the advantages of water-cooled designs — such as high braking torque and simple operation.
    • ✔

      The cooling system is simplified, eliminating the need for large water tanks, pumps, and pipelines, while avoiding freezing problems in cold climates.

    • ✔

      It prevents scaling and corrosion issues, ensuring that the air gap remains stable and braking torque remains reliable.

    • ✔

      It avoids the risk of coil burnout caused by operator error in water-cooled systems (e.g., failing to start the water pump).

    • ✔

      It eliminates failures caused by seal leakage, which can lead to coil damage and bearing breakdown in water-cooled brakes.

    • ✔

      Continuous forced ventilation allows effective heat dissipation even after braking stops, unlike water-cooled brakes where cooling ceases once rotation ends — ensuring safer operation during drill-in.

    • ✔

      Engineered for drilling rig safety systems, combining durability, safety, and compliance with API 7K, IEC, ISO 9001 and Chinese standards.

    Product Details
    Eddy Current Brake view3
    Eddy Current Brake view1
    Frequently Asked Questions (FAQ)
    Q What is the rated braking torque of the MTDSF-50 electromagnetic eddy current brake?
    The MTDSF-50 has a rated braking torque of 55,000 N·m, making it suitable for heavy-duty drilling rig applications with drilling depths up to 5,000 m using 5″ drill pipe.
    Q What is the key advantage of air-cooled design over water-cooled electromagnetic brakes?
    Air-cooled designs eliminate the need for water tanks, pumps, and pipelines, avoiding risks such as freezing in cold climates, scaling, corrosion, seal leakage, and coil burnout caused by operator error in water-cooled systems. Continuous forced ventilation also provides effective cooling even after braking stops.
    Q What international standards does the MTDSF-50 comply with?
    The MTDSF-50 is engineered to comply with API 7K, IEC, ISO 9001, and Chinese national standards. Third-party inspection and witness reports are available from Bureau Veritas (BV), CCS, ABS, SJS, and other recognized bodies.
    Q What is the maximum excitation power and current for this brake?
    The maximum excitation power is 15 kW, and the maximum excitation current is 45 A. The four coils are connected in a series-parallel configuration, each with a rated resistance of 6.54 Ω ±10%.
    Q How much does the MTDSF-50 weigh and what are its overall dimensions?
    The MTDSF-50 weighs 7,280 kg including the control system. Its overall dimensions are 2598 × 1850 × 1613 mm.
    Q What cooling airflow is required for the MTDSF-50 eddy current brake?
    The MTDSF-50 requires a cooling airflow of 12,000 m³/h. The forced ventilation system ensures continuous and efficient heat dissipation during and after braking operations, contributing to safer and more reliable performance on the drilling rig.

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