The plant has implemented a modern technological scheme for the production of pipes. Three high-speed lines are capable of producing 1000 kilograms of finished products per hour.

The production of polyethylene pipes is carried out by the method of continuous screw extrusion at extrusion units.

The production uses high-quality raw materials from world industry leaders.

Loading of raw materials
Drying of raw materials
Formation of a pipe billet
Vacuuming of the pipe billet
Cooling the pipe billet
Pipe branches
Pipe cutting

Loading and drying of raw materials

Drying of raw materials is carried out to reduce residual moisture in order to obtain high-quality products, improve the working parameters of processing and reduce the loss rate. Drying is done in a dryer. A vacuum loader is used to feed raw materials into the dryer


From the dryer, polyethylene granules flow by gravity into the loading hole of the extruder. The production of polyethylene melt from the granulate is carried out in an extruder, the main working body of which is a scrow rotating in a stationary heated cylinder.

The depth of the scrow turns in the direction of movement decreases. Due to the interaction of the working screw surface and the working surface of the cylinder with the incoming granulate, the latter moves along the screw channel in the direction of the compression zone. As you move along the cylinder, the material warms up.

In the compression zone, its melting and plasticization takes place, and in the subsequent dosing zone, homogenization and uniform flow of the melt into the tool of the extrusion plant is procured.

The extruder is heated with the help of electric heating elements. The cylinder and the tool are divided into several thermal zones with self-automatic temperature control of each zone. To measure the temperature, thermocouples installed in the wall of the cylinder and the tool are used.

To prevent overheating of the mass, the extruder cylinder is cooled with air and water. The cylinder cooling is adjusted automatically by means of thermal automation devices.

Formation of a pipe billet

The formation of the pipe billet occurs in the extruder tool. Homogeneous polyethylene melt is injected into the tool, flows around the torpedo, is forced into a continuous stream in the annular gap between the mouthpiece and the mandrel.

The hot pipe billet is continuously squeezed out of the annular slot of the tool and enters the calibration device. To obtain pipe billets of different diameters, a replaceable forming tool is used.

Application of colored stripes on the surface of pipes

To obtain colored stripes on the surface of the pipe, a polyethylene melt of a color different from the main color of the pipe is fed into the forming tool. The melt is fed by an additional extruder - co-extruder

Vacuuming of the pipe billet

A vacuum calibration device (vacuum bath) is used to calibrate the pipes

It is a bath with a built-in set of replaceable calibration nozzles. The bath is filled with water and connected to a water jet pump. The pressure difference in the pipe cavity and in the bath cavity ensures that the outer surface of the workpiece is pressed against the surface of the calibration nozzle, while intensive cooling of the workpiece surface is provided directly with water.

The main purpose of the calibration device is the formation of a cooled, hardened layer on the surface of the workpiece, which by the time the workpiece exits the calibration device ensures that the pipe retains the required shape and dimensions. The calibration nozzle is a bronze cylinder, the inner (working) surface of which corresponds in size and configuration (taking into account shrinkage phenomena) to the pipe being formed.

Cooling of the pipe billet

The hot pipe at the outlet of the vacuum bath enters the cooling bath, where it is finally cooled and the structure of the material is formed, which provides physical and mechanical properties.

Pipe offset

Pipe offset is carried out using a caterpillar-type pulling device specially designed for this purpose, which provides pipe offset at a constant speed. The stability of the geometric dimensions of the pipes depends on the uniformity of the movement of the pulling devices.

Pipe cutting

A cutting device is installed behind the pulling device. Pipe cutting into segments of a given length is carried out automatically. During the cutting of the pipe, the carriage of the cutting device moves with it, without disturbing the continuity of the process.

Pipe winding

Following the cutting device, a coil winding device is installed. The winding of pipes into coils is carried out on a special drum. The winding speed is smoothly adjustable over a wide range. After the required amount of pipe is wound, it is packed and transported to storage locations.

We invite you to cooperate
Send a request and managers will contact you as soon as possible