Overview
The Mining and Tunnel Collapsible Air Duct is a highly efficient, portable ventilation duct designed specifically for harsh ventilation environments such as mining, tunneling, and underground construction. It's not only a revolutionary alternative to traditional rigid metal ducts, but also an essential piece of equipment for modern safety production and emergency rescue.
Its core feature is its foldability. Made of high-strength, flame-retardant, and antistatic flexible material, it can be compressed and folded like an accordion when not in use, significantly reducing its size and greatly facilitating transportation, storage, and on-site handling. To operate, simply unfold it and prop it up with an internal support structure (such as a steel ring or spring wire). This quickly creates a strong, unobstructed ventilation channel, efficiently and stably delivering fresh air to the work surface while forcibly exhausting harmful gases, dust, and smoke. This creates a safe and healthy working environment for underground workers, ensuring their safety and project progress.
Specifications
Technic | Coated or laminated |
Material | PVC coated fabric+ steel wire |
Color | Yellow or black or orange or customized |
Diameter | 10-122 inches |
Use temperature | -40℃ ~ +100℃ |
Coupling Type | Zipper, Velcro, or steel ring |
Helix | Steel wire |
Flame retardant(optional) | NFPA-701, B1, B2 or M2 |
Anti-static (optional) | less than 3×108ohm |
NEWSTAR spiral ventilation duct is frequently used in negative pressure in the underground, and it can blow air from outside and exhaust air from inside. Our reinforced steel wire is made of cold-drawn section steel to support higher pumping pressures to meet customer requirements.
