The 2PE, 3LPE, and FBE epoxy-coated steel pipe are widely applied in pipeline systems for oil, gas, water, and other fluid transportation. They provide excellent resistance against chemicals, moisture, and harsh environments.

The 3-layer PE coating consists of:

First layer: FBE (Fusion Bonded Epoxy) coating

Second layer: Adhesive layer

Third layer: Polyethylene outer layer

The Steel Elbow 3PE Anti-Corrosion Production Line is designed to process bent steel pipes. It integrates rust removal, epoxy powder coating, 3PE winding, cooling, and spraying into one line, ensuring high-quality and durable anti-corrosion protection.

Basic work condation:
Process parameters of winding anticorrosion:
Production line size: 20 m X 15 m
Total water consumption: 30 cubic meters
Total power consumption: 450 kilowatts
Total gas consumption: 6 cubic meters / min.
Temperature condition: the temperature inside the workshop is higher than 5 degrees.

Elbow conveyor line

Independent center of rotation drive

Gear ring gear drive

frequency control

The main parts adopt protective supporting wheel

The supporting wheel is equipped with slide rail, which is easy to install

Fixed angle of self-locking structure of transmission line

Height lift adjustment

Medium frequency heating

Angle handwheel adjustment

Front and rear electric adjustment

The height is adjusted through the conveyor line

Narrow thickness to avoid uneven heating in bending section

If power 350kW

Voltage and current double close regulation

Powder spraying for elbow

Annular dusting chamber

Front and rear electric adjustment of powder spraying chamber

The spray gun swings left and right

CNC adjustment of powder quantity

There are 12 powder guns

U-shaped bottom blowback recovery

Overall material 304 stainless steel

The hard negative pressure of recovery air duct does not deform

Powder injection recovery

The drawing air duct is suitable for the change of pipe diameter

Cyclone + filter cartridge dust removal standard discharge

U-shaped bottom structure + pulse back blowing to recover powder more thoroughly

304 stainless steel fluidization tank, vibrating screen powder filter, equipped with 12 venturi powder pumps

Winding machine

Automatic belt locking

One side with corrosion protection

Continuous operation of winding tape

The strip is wound tightly

High degree of automation

Automatic calculation of strip by computer

The deviation of straight pipe from the center does not affect the winding work

PLC control systerm

Data collection

edit

With memory function

Automatic calculation of strip consumption

Automatic acquisition and correction of transmission speed

Variable Elbow Pipe Conveyor Line
- Innovative design allows different pipe diameters, curvature radii, and angles to be processed on the same production line.

Precise Arc Determination Technology
- Alloy expansion heads eliminate internal stress and ensure accurate bending radius, overcoming springback and elongation issues.

Coaxial Winding Device
- Uses asynchronous inner and outer shaft technology for precise, continuous winding at equal line speed across varying diameters.

Advanced Spray Coating
- High-voltage electrostatic spraying ensures uniform coating thickness, excellent gloss, strong adhesion, and corrosion resistance.

Sulfide Boiling Technology
- Fluidized bed heating for stable FBE powder melting, with low energy consumption and reliable performance.

Oil & Gas pipeline systems

Water supply pipelines

Sewage and wastewater transport

Chemical industry pipeline protection

Qingdao Huashida Machinery Co., Ltd was established in 2003. Since its inception, Huashida has focused on plastic polyurethane insulation pipe production line, 3PE anti-corrosion pipe production line, large diameter underground pipe production line and plastic pipe joints for 20 years. We always attach great importance to research and development,collaborating closely with Beijing University of chemical technology, Qingdao university of technology and scientific research institutions. by absorbing advanced technology home and abroad, after 20 years of endeavor we now rank one of the top 3 manufacturers in the industry in China. Huashida machines have been well received in Saudi Arabia, Kazakhstan, Uzbekistan, United Arab Emirates, Turkey, Russia, etc.

Exhibition

client

packaging

Certifications

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.