The explosion-proof main fan for coal mines features an explosion-proof casing and anti-static interior design, with China MA (Coal Mine Safety) certification documents provided for applicable models. Installed at a surface main fan station, it provides main exhaust ventilation for underground coal mines with methane and coal-dust hazards.
The unit is equipped with a high-efficiency axial-flow impeller and optimized flow channels, providing continuous high-volume airflow at the pressure required by the mine ventilation system to support stable main ventilation airflow and effective exhaust of mine gases. The impeller undergoes dynamic balancing to reduce vibration and noise; the housing is constructed from carbon steel or stainless steel as specified, with anti-corrosion coatings for wear and corrosion resistance.
We offer the single-motor FBCZ series and the dual-motor, counter-rotating FBCDZ series, with project-specific options for airflow, pressure, housing materials, installation arrangements and explosion-proof configurations within the approved scope of the selected model. On-site surveys, system design, installation, commissioning and long-term maintenance support can be agreed for the project. The table below compares the configurations and performance ranges of the two series.
| Parameter | FBCZ | FBCDZ |
|---|---|---|
| Fan arrangement | Single-motor axial-flow | Dual-motor, two-stage counter-rotating |
| Airflow (m³/s) | 2.0–164.2 | 5.5–440.0 |
| Total pressure (Pa) | 38–2,409 | 306–6,921 |
| Motor power (kW) | 1.1–250 | 2 × 18.5– |
| Typical coal-mine duty | Main exhaust at comparatively lower system resistance | Higher-pressure main exhaust in higher-resistance networks |
These are series ranges, not the performance of a single fan. Maximum airflow and maximum pressure are not one operating point; the proposed fan curve must match the required duty. FBCDZ power is shown as two motors × the power of each motor.
FBCZ and FBCDZ main fans combine spark-resistant lining in the impeller working area with a flameproof motor housed in a separate chamber. Riveted copper plate or another lining material specified for the model helps reduce the risk of friction sparks from accidental contact.
Factory checks cover assembly and running condition, while performance testing measures airflow and pressure. The reports identify the tested fan and motor configuration, record the operating conditions and state whether pressure values are static or total. View our manufacturing and testing process.
Selected certificates include CE, ISO 9001, ISO 14001 and ISO 45001. Additional documents such as MA/KA mining product certificates, patent certificates, inspection reports and technical files can be provided upon request for project review and supplier evaluation.