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MTDSF-50 Electromagnetic Eddy Current Brake for Drilling Rigs - China Suppliers and Factory Quality Assurance
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
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High Braking Torque with Simplified CoolingThe 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 — while eliminating the need for large water tanks, pumps, and pipelines.
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No Freezing, Scaling, or Corrosion IssuesAvoids freezing problems in cold climates and prevents scaling and corrosion, ensuring the air gap remains stable and braking torque remains reliable at all times.
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Eliminates Coil Burnout RiskAvoids the risk of coil burnout caused by operator error in water-cooled systems (e.g., failing to start the water pump), significantly improving operational safety.
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No Seal Leakage FailuresEliminates failures caused by seal leakage, which can lead to coil damage and bearing breakdown in water-cooled brakes, ensuring long-term mechanical reliability.
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Continuous Cooling After BrakingContinuous 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.
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Full Compliance with International StandardsEngineered for drilling rig safety systems, combining durability, safety, and compliance with API 7K, IEC, ISO 9001, and Chinese standards.
Product Details
Frequently Asked Questions
Q
What is the rated braking torque of the MTDSF-50 electromagnetic eddy current brake?
The MTDSF-50 model delivers a rated braking torque of 55,000 N·m, making it suitable for drilling depths up to 5,000 meters when used with 5-inch drill pipe.
Q
What is the main advantage of air-cooled eddy current brakes over water-cooled designs?
Air-cooled eddy current brakes eliminate the need for water tanks, pumps, and pipelines, while avoiding issues such as freezing in cold climates, scaling, corrosion, seal leakage, and coil burnout caused by pump failure. They also provide continuous cooling via forced ventilation even after braking stops.
Q
What international standards does this electromagnetic eddy current brake comply with?
The brake is engineered to comply with API 7K, IEC, ISO 9001, and applicable Chinese standards, ensuring it meets global drilling rig safety and quality requirements.
Q
Which third-party inspection and certification bodies are available for this product?
Third-party witness and inspection reports are available from recognized international bodies including Bureau Veritas (BV), CCS, ABS, and SJS, among others.
Q
What are the key electrical specifications of the MTDSF-50 eddy current brake?
The MTDSF-50 features 4 coils with a rated resistance of 6.54 Ω (±10%) per coil connected in series-parallel configuration. The maximum excitation power is 15 kW and the maximum excitation current is 45 A. The coils are rated to Insulation Class H for high-temperature durability.
Q
What are the overall dimensions and weight of the MTDSF-50 unit?
The MTDSF-50 electromagnetic eddy current brake has overall dimensions of 2598 × 1850 × 1613 mm and weighs approximately 7,280 kg including the control system. The cooling system provides an airflow of 12,000 m³/h.






