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.Well-known brand PLC controller

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.

1. company profile

Qingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints and welding tools such as heat shrinkable sleeve, Electro fusion sleeve etc.

2. main products

Our main products include as following,HDPE PU pre-insulation Jacket Pipe extrusion line,3PE steel pipe anticorrosion&coating machinery,Rubber&plastic foam flexible insulation tube/sheet production line,HDPE water supplying pipe extrusion line,PE PP sheet board extrusion line,Heat shrinkable sleeve production line,Hollow wall spiral pipe production line,Plastic welding rod extrusion line,Radiation cross-linked PE heat shrinkable sleeve,Electro fusion tape,Portable extrusion welder.

Our machines make products what are widely used as jacket pipe of PU foam insulation pipe in municipal heating pipe system; Municipal water supplying and drainage pipeline; Oil and gas pipeline; Pipe joints of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;
Besides manufacturing machines, we also make Heat shrinkable sleeves and electro fusion sleeves and plastic welders, which are widely used as pipe joints and sealings of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;

4. Our certificates and Patents

5. Global market
Our purpose is to supply highest cost-effective products and the most suitable solutions to our clients, as well as intimate help and service, on this basis we reach a win-win situation.
For over 14years We have exported to many foreign countries, such as Russia, Iran, Turkey, U. A. E, Sudan, Ukraine, Uzbekistan, Azerbaijan, South Asia, Poland etc.

6. Core Team

The guarantee period is 12 months from the date of installing, but no more than 14 months from the date of delivery. After this period we are obliged to provide with lifelong service at the expense of Buyer.During the warranty period we are responsible to provide trouble shootings and help the customer to solve the problems, provide spare parts which are broken, except breakings caused by the Buyer.We will provide the technical service train the workers from the buyers for free.We can also send technicians to the buyer's companies abroad for help installation and testing the lines. But the buyer shall pay for the round trip tickets, accommodation, transportation, medicine treatment and insurance of the technicians in foreign countries and some salary accordingly.