900mm Yellow helix spiral tunnel and coal mine ventilation fan air duct  is made of 680GSM strong PVC material, which is characterized by its good tear and tensile strength. It is suitable for high power strong ventilation fan, and has been widely used in digging and coal mines with high gas content.

-Made of strong biaxial polyester. Using double skin coated craft to stick the PVC fabric with high temperature.

-Supported by spiral helix steel wire for reinforcement.

-The supporting spiral steel wire is wrapped by black rubber strip for tear-and-wear protection. 

-It is characterized by its fire resistant, oleic acid proof

- Endure at least 8000Pa pressure.

-With hanging rings every one meter for easy suspension.

-Both ends with 10mm metal rings.  

-Size: 900mm x 10m. Standard sizes: 4"-60", standard length: 5m or 10m. Custom sizes are also available.

-Flexible and light weight for easy use and installation. Rolls up for easy transportation and storage.

Feature

- high tensile, shockproof, water proof, uninflammable, anti-static, hot and cold resistant, acid and alkali-resistant, and structure-stability. It is not water swellable fabric.

-It is characterized by its fire resistant, oleic acid proof.

- We have made different thickness, diameter and length mining ducts according to the rigidity of the rock and coal seam.

- Less cost of will be needed for   the initial investment of mining duct. It can be used several times. With its high performance cost ratio, the total cost will be lower.

Application

Our Strong PVC Yellow fire resistant tunnel duct with snap hooks is suitable for high power strong ventilation fan which has been used in digging and coal mines with high gas content. In order to improve the ventilation facilities and ensure the safety of production. It is one of the most effective measurements to reduce manufacturing cost and enhance work efficiency.

1. We can offer small testing samples

2. OEM Serivice is available

3. Product warranty is 1 year