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MTDSF-50 Electromagnetic Eddy Current Brake for Land & Offshore Drilling Rigs - Top China Suppliers & Factory
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:
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The cooling system is simplified, eliminating the need for large water tanks, pumps, and pipelines, while avoiding freezing problems in cold climates.
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It prevents scaling and corrosion issues, ensuring that the air gap remains stable and braking torque remains reliable.
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It avoids the risk of coil burnout caused by operator error in water-cooled systems (e.g., failing to start the water pump).
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It eliminates failures caused by seal leakage, which can lead to coil damage and bearing breakdown in water-cooled brakes.
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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.
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Engineered for drilling rig safety systems, combining durability, safety, and compliance with API 7K, IEC, ISO 9001 and Chinese standards.
Product Details
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 applications with 5″ drill pipe down to a depth of 5,000 m.
Q
What are the main advantages of air-cooled design over water-cooled electromagnetic brakes?
The air-cooled design eliminates the need for water tanks, pumps, and pipelines, avoids freezing in cold climates, prevents scaling and corrosion, removes the risk of coil burnout from pump failure, and provides continuous heat dissipation even after braking stops — all of which significantly improve reliability and safety.
Q
What international certifications and standards does this eddy current brake comply with?
The MTDSF-50 is engineered in compliance with API 7K, IEC, ISO 9001, and Chinese national standards. Third-party inspection reports are available from Bureau Veritas (BV), CCS, ABS, SJS, and other recognized bodies.
Q
What is the cooling airflow requirement and maximum excitation power for the MTDSF-50?
The MTDSF-50 requires a cooling airflow of 12,000 m³/h for effective heat dissipation. The maximum excitation power is 15 kW, with a maximum excitation current of 45 A.
Q
How are the coils connected and what is the insulation class of this brake?
The MTDSF-50 features 4 coils connected in a Series-Parallel configuration, with a rated resistance of 6.54 Ω ±10% per coil. The insulation class is Class H, which supports high operating temperatures and ensures long-term coil reliability.
Q
What are the overall dimensions and total weight of the MTDSF-50 including the control system?
The overall dimensions of the MTDSF-50 are 2598 × 1850 × 1613 mm. The total weight, including the control system, is 7,280 kg, designed for integration into standard drilling rig configurations.