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China MTDSF-50 Electromagnetic Eddy Current Brake for Drilling Rigs - Top Suppliers & Factory Solutions
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 and inspection report available | Bureau Veritas (BV), CCS, ABS, SGS 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
Frequently Asked Questions (FAQ)
Q: What is the rated braking torque and applicable drilling depth of the MTDSF-50 Eddy Current Brake?
The MTDSF-50 model provides a rated braking torque of 55,000 N·m and is suitable for drilling depths up to 5,000 meters when utilizing a 5″ drill pipe.
Q: What are the key advantages of an air-cooled eddy current brake over water-cooled models?
Air-cooled systems eliminate the need for water tanks, pumps, and pipelines, avoiding freezing issues in cold climates. They also prevent scaling, corrosion, coil burnout from pump failures, and seal leakage.
Q: How does the cooling system maintain performance after braking has stopped?
Equipped with forced ventilation, the system provides continuous cooling airflow (12,000 m³/h) that dissipates heat even after rotation stops, ensuring a safer operation during the drill-in process.
Q: What standards and certifications does the MTDSF-50 comply with?
The electromagnetic eddy current brake complies with API 7K, IEC, ISO 9001, and Chinese standards. Third-party witness and inspection reports are available from Bureau Veritas (BV), CCS, ABS, SGS, and others.
Q: What are the electrical and physical specifications of this brake?
It features 4 coils with Class H insulation and a series-parallel connection. It operates with a maximum excitation power of 15 kW and a maximum excitation current of 45 A. The total weight including the control system is 7,280 kg.






