Durable Hollow Wall Winding Pipe for Efficient Mine Ventilation Systems

 The HDPE hollow wall corrugated pipes produced by this line feature high stiffness, high burst strength, and low weight due to their unique structure. Additionally, they offer numerous advantages, such as good resistance to creep deformation, resistance to external pressure, and resistance to erosion (including acids, alkalis, and salts), with an approximate lifespan of 50 years. These pipes have been widely used for municipal sewage and drainage applications and are gradually replacing traditional materials like cement pipes and cast iron pipes. Their low assembly cost, ease of operation, easy connection, and economical construction make them highly promising in terms of market potential and future development.

Hollow wall pipe:
Production process: The high-density polyethylene is first made into a rectangular pipe embryo by winding molding process, and then formed by winding welding.
Structural features: The middle of the pipe wall is hollow and the ring stiffness is high.
Diameter range: Not limited by the pipe diameter, large-diameter pipes can be produced, up to DN3000. Huashida is capable of producing large - diameter (4000mm) hollow - wall winding pipe production lines. It owns the integral production line with independent intellectual property rights.
Connection method: Hot melt tape connection is mainly used, and the connection cost is slightly higher.
Cost and price: Under the same diameter and ring stiffness, more raw materials are consumed, and the production cost and price are higher.
Application scenarios
• Suitable for large-scale municipal drainage projects, mountain drainage projects and other occasions that need to withstand greater external pressure or complex environments.
• It can also be used as a manhole pipe for inspection wells.
We also produce: anti-static gas extraction and exhaust pipes for mining, which are connected by special pipe fittings (electric hot melt tape, heat shrink sleeve), which are easy to connect and economical to construct.
Features of HDPE Hollow Wall Corrugated Pipe:
It's designed with advanced technology includes 1st single screw extruder for square shaped pipe, square shaped pipe extrusion die, vacuum calibration water tank, spray cooling water tank. 2ND single screww extruder for melting glue material, spiral forming unit, cutting and stack unit.




Composition of Equipments
1.1set  Single screw extruder with vacuum loader& hopper dryer
2.1set  Square tube die head & mould 
3.1set  Vacuum calibration table 
4.1set  Water spraying tank 
5.1set  Hauling machine 
6.1set  Single screw extruder with vacuum loader & hopper dryer
7.1set  Melt adhesive extrusion die head 
8.1set  Rewinding forming machine
9.1set  Cutting machine 
10.1set Stacker 
11.set  Siemens PLC

Extruder 
Efficient single screw extruder with water-cooling force feeding system, and barrel with grooving in the feeding zone are designed to save power of main motor; Long L/D ratio and mixing head are designed to get perfect jellification and high output.
Rewinding forming machine 
It adopts composite die head and spiral rotating forming method, is designed with compact structure.

Pipe Application Areas:
This type of pipe is suitable for municipal drainage systems handling water at temperatures below 45ºC, building exterior drainage, buried agricultural field drainage, industrial wastewater management, road drainage, sewage treatment projects, drainage in sports fields and plazas, as well as electrical and telecommunications projects.


TECHNICAL PARAMETERS

Professional team for your service, detailed pre-sales technical consultation and perfect after-sales service to solve your worries. The seller would send technician to the buyer's factory to help installing and test the new machine and train people of the buyer.