In underground mining ventilation, the fan casing (housing assembly) serves as the primary structural backbone that encapsulates the motor, holds the impeller, and maintains an optimal aerodynamic flow path.
Designed for DK series mine axial fans, our heavy-duty welded fan casings are built to withstand severe pulsating airflows, vibration, and humid mining environments without structural deformation.
Key Engineering Features
Heavy-Gauge Steel Cylindrical Shell
Rolled from high-strength low-alloy carbon steel (Q355B / Q355D), providing exceptional rigidity and impact resistance against flying debris.
Precision roundness minimizes radial tip clearance between the fan blades and casing, maximizing fan static efficiency.
Integrated Rigid Motor Support Bracket
Features a heavy-duty internal T-bar / trapezoidal support bridge designed to mount explosion-proof motors securely.
Absorbs operational torque and rotational dynamic loads, maintaining precise shaft alignment over 24/7 operation.
Precision Machined Mounting Flanges
Heavy-duty steel flanges welded on both ends ensure airtight, seamless connection with diffusers, inlet cones, or adjacent ducting sections.
Sturdy Anchor Base Frame
Fully welded bottom mounting feet allow direct bolting to concrete foundations, effectively isolating vibration and reducing mechanical noise.
📊 Specifications
| Parameter | Specification Details |
| Fan Compatibility | DK Series Mine Axial Fans (DK No. 10 to No. 26) |
| Material Options | Heavy-gauge Low-Alloy Carbon Steel (Q355B) / Stainless Steel |
| Shell Thickness | $8\text{ mm} - 20\text{ mm}$ (Customizable per fan pressure rating) |
| Weld Quality | Full penetration welding with Ultrasonic Testing (UT) |
| Surface Finish | Heavy-duty anti-corrosion primer & industrial finish coat |
