Product Advantages
Compact structure, safe to use
This series of fans consists of a collector, a primary fan, a secondary fan, a motor, a bipolar silencer, etc. The casing and structure are welded from steel plates. The impeller is made of high-pressure precision-cast aluminum alloy, subjected to X-ray flaw detection, and carefully selected high-quality blades ensure that the raw materials are more precise and robust. The fan adopts a direct connection between the motor and the impeller, ensuring reliable transmission. The overall structure is simple and compact, sturdy and durable, safe to use, and easy to maintain.
Three-dimensional flow aerodynamics
The impeller adopts three-dimensional flow aerodynamic theory, variable-sweep combined orthogonal blades, and aircraft turbojet engine fan blades, among many other high-tech design and manufacturing features.
High efficiency, good performance
The complete machine features a compact structure, low noise, high efficiency, good aerodynamic performance, and high wind pressure. It operates stably in the working range and has a wide high-efficiency application range. According to the length of the tunnel excavation face and the different ventilation requirements of the roadway, it can be used as a complete machine or in stages, thereby reducing energy consumption and saving energy. It is the ideal equipment for medium- and long-distance local ventilation in tunnel excavation.
Electric system
It adopts a controller dedicated to construction machinery, with better dust resistance and water resistance, and an extremely low failure rate. Through integration with self-developed cloud platform technology, it can perform remote fault diagnosis and maintenance reminders for the equipment.
Ultra-quiet
The silencer adopts an externally wrapped composite noise-reduction device, and the main unit is equipped with a silencer, giving the complete machine ultra-quiet characteristics.
Technical Parameters
| Soft-Start Tunnel Fan SDDF-R Equipment Parameters | |||||||
| Equipment Model | Speed r/min |
Flow Rate m³/h | Pressure Pa | Noise dB(A) |
Motor | Power (KW) |
|
| Model | Speed Control Type | ||||||
| SDDF-R6.3 | 2980 | 24707-35900 | 4450-6580 | ≤90 | Y180L2-2 | I/R/BP | 2×30 |
| SDDF-R7.1 | 2980 | 33207-42662 | 5030-7220 | ≤90 | Y200L2-2 | I/R/BP | 2×37 |
| SDDF-R8.0 | 2980 | 43305-59100 | 5030-8231 | ≤90 | Y250M-2 | I/R/BP | 2×55 |












