In today’s booming infrastructure construction field, PE (polyethylene) and HDPE (high-density polyethylene) pipes have become indispensable key materials for many projects due to their excellent performance. From urban water supply and drainage networks to gas transmission systems to irrigation facilities in vast farmlands, PE/HDPE pipes are everywhere, providing solid support for the stable operation of various projects with their good corrosion resistance, high strength and flexibility. Zhangjiagang Sharc Machinery Co., Ltd., as a leading enterprise in the industry, focuses on the research and development and manufacturing of PE/HDPE pipe production lines, and is committed to providing customers with a one-stop complete solution from raw material input to finished pipe output, injecting a steady stream of power to promote the development of the industry.
Comprehensive coverage of pipe production capacity
Sharc Machinery’s PE/HDPE pipe production line demonstrates impressive and powerful production capacity. It is applicable to a wide range of pipe diameters, from small pipes with a diameter of only 16mm to large pipes with a diameter of 2000mm, all of which can achieve efficient and precise production. This wide range of pipe diameter coverage enables the production line to flexibly meet the diverse needs of projects in different fields and sizes. Whether it is a slender pipe used to transport domestic water in a small home improvement project, or a giant pipe that undertakes a huge amount of water transportation in a large urban water supply and drainage project, Sharc Machinery’s pipe production line can perfectly cope with it, ensuring that each pipe meets strict quality standards and provides reliable guarantees for the smooth implementation of various engineering projects.
In response to the production needs of different types of PE pipes, the company has carefully created a rich and diverse selection of equipment. Among them, the PE corrugated pipe extruder is a star product that can produce single-wall and double-wall corrugated pipes. The uniquely designed corrugated structure gives the pipe excellent compressive resistance, allowing it to maintain structural stability and not easily deformed when subjected to high pressure. At the same time, this corrugated structure also greatly improves the drainage capacity of the pipe, which can quickly and smoothly discharge liquids. For this reason, PE corrugated pipes have been widely used in underground drainage systems and have become an important part of urban drainage networks, effectively ensuring the normal operation of cities under severe weather conditions such as rainy seasons, and preventing the occurrence of disasters such as waterlogging.
For some application scenarios with special requirements for pipe performance, the multi-layer HDPE pipe production line plays a key role. This production line has the ability to produce two-layer, three-layer or even five-layer pipes. By cleverly matching raw materials of different materials, it can accurately achieve the perfect balance between strength, corrosion resistance and cost of pipes. For example, in some chemical liquid transportation projects that require extremely high corrosion resistance of pipes, special raw materials with excellent corrosion resistance can be used in the inner layer of the pipe, while ordinary raw materials with higher strength can be used in the middle and outer layers. This not only meets the corrosion resistance requirements, but also ensures the overall strength of the pipe. At the same time, it can effectively control production costs and provide customers with economical and practical pipe solutions.
Fine equipment parameters and composition
Sharc Machinery’s HDPE pipe extruder models are rich and diverse, and each model has clear and precise definitions in key parameters such as pipe diameter, production capacity and motor power. Taking the PE63 model as an example, it can efficiently produce pipes with diameters ranging from 16 to 63mm, with a production capacity range of 150 to 300kg/h and a motor power of 45 to 75kw. As the model gradually increases, the corresponding pipe diameter, production capacity and motor power will also increase accordingly. This scientific and reasonable parameter setting enables enterprises to accurately select the most suitable equipment model according to their actual production scale and market demand, achieve optimal allocation of production resources, and avoid resource waste or insufficient production capacity caused by improper equipment selection.
The entire pipe production line is a precision system in which a variety of advanced equipment work together. The automatic vacuum feeder is equipped with 1 to 3 sets depending on the number of pipe layers. It is like the “grazier” of the production line, which can accurately and efficiently deliver the raw materials required for production to each processing link to ensure the continuity and stability of raw material supply during the production process. The hopper dryer is responsible for removing moisture from the raw materials. The presence of moisture may have a negative impact on the quality of the pipe, causing bubbles and strength loss in the pipe. The hopper dryer can reduce the moisture content in the raw materials to a safe range through effective drying, laying a solid foundation for the production of high-quality pipes.
As the core equipment of the entire production line, the performance of the single-screw PE extruder directly affects the production quality and efficiency of the pipe. The single-screw PE extruder of Shak Machinery adopts an optimized L/D ratio (33:1 or 38:1). This carefully designed aspect ratio can make the raw materials more fully plasticized during the pushing process of the screw, ensuring the uniform and stable quality of the pipe. At the same time, the use of high-quality alloy screw barrels greatly improves the wear resistance and service life of the equipment, reduces the maintenance cost of the equipment, and provides a reliable guarantee for the long-term stable production of the enterprise. The color co-extruder can add clear and eye-catching color labels to the pipes with an extrusion rate of 5-12kg/h, which is convenient for distinguishing and identifying pipes of different purposes and specifications during engineering installation and use.
The extrusion die is a key component that determines the quality of pipe molding. Sharc Machinery customizes and produces it according to the specific needs of customers. The die is made of 40Cr material, which has good strength and wear resistance, and can maintain stable shape and dimensional accuracy under long-term high-pressure and high-temperature production environments. At the same time, the die adopts natural mica heating, which has the advantages of uniform heating and precise temperature control. It can ensure that all parts of the pipe are heated evenly during the extrusion molding process, thereby ensuring the molding quality of the pipe and reducing problems such as pipe deformation and uneven wall thickness caused by uneven temperature.
The subsequent vacuum shaping box and spray cooling box play an indispensable role in the cooling and shaping process of the pipe. The vacuum shaping box extracts air from the box to form a negative pressure environment, so that the pipe can quickly fit the shape of the mold for preliminary shaping after extrusion. The spray cooling box uses circulating water to further cool the pipe. Its stainless steel spray pipe and nylon nozzle can ensure that the cooling water flow is evenly sprayed on the surface of the pipe, achieving efficient and uniform cooling effect. In addition, the equipment has great flexibility in height and position adjustment, and can be quickly adjusted according to the production needs of pipes with different diameters and wall thicknesses to ensure that each pipe can get the best cooling and shaping effect.
The number of traction claws of the traction machine can be customized according to actual production needs. The traction speed of the pipe can be accurately controlled by the motor drive specified by Siemens or the customer. In the process of pipe production, stable control of the traction speed is crucial to ensure the uniformity of the wall thickness and length accuracy of the pipe. With its advanced drive system and precise speed control system, the traction machine of Sharc Machinery can ensure that the pipe maintains a stable speed during the traction process, avoiding pipe quality problems caused by speed fluctuations. The cutting machine adopts a pneumatic workbench and is controlled by a Siemens PLC touch screen control system to achieve precise cutting. The operator only needs to input the required pipe length and other parameters on the touch screen, and the cutting machine can quickly and accurately complete the cutting task, with smooth cuts, greatly improving production efficiency and the quality of finished pipes. The last flip-type stacking rack is equipped with nylon rollers to facilitate the collection and storage of pipes. Nylon rollers can effectively reduce the wear of pipes during stacking, and the flip-type design makes the loading and unloading of pipes more convenient and efficient, saving manpower and time costs.
Three, significant equipment advantages
Efficient production: Sharc Machinery‘s PE/HDPE pipe production line adopts a series of advanced production technologies and optimized equipment configurations, so that the entire production process can quickly and smoothly complete the key processes of pipe extrusion, molding, cooling and cutting. For example, the efficient screw design and high-speed traction system greatly shorten the production cycle of each pipe, greatly increase the output per unit time, can meet the market’s growing demand for pipes, and help enterprises seize the initiative in the fierce market competition.
High degree of automation: The production line is equipped with an advanced automatic control system, which runs through all links of the entire production process. From automatic feeding of raw materials, automatic adjustment of equipment parameters, to real-time monitoring and fault diagnosis of the production process, all can be automated. This highly automated production mode greatly reduces manual intervention, not only reduces labor intensity, but also avoids production errors caused by human factors, and improves production stability and product quality consistency. Taking the automatic vacuum feeder as an example, it can automatically replenish raw materials according to the raw material consumption on the production line, without frequent manual operation, ensuring the continuity and efficiency of production.
Good stability: In the design and manufacturing process of the equipment, Sharc Machinery fully considered the various working conditions and needs in the production process, and adopted a stable and reliable mechanical structure and high-quality parts. At the same time, the equipment has undergone strict quality inspection and actual production verification, and can still maintain stable operation under long-term and high-intensity production environment, effectively reducing equipment failures and downtime. For example, the high-quality alloy screw barrel of the single-screw PE extruder has excellent wear resistance and fatigue resistance, and can maintain a stable working state under long-term high-speed operation, providing a strong guarantee for the company’s continuous production.
Strong adaptability: The production line has strong adaptability and can produce PE pipes of various specifications and wall thicknesses. By flexibly adjusting equipment parameters and replacing corresponding molds, the switching production of products with different needs can be quickly realized. Whether it is small-diameter thin-walled pipes or large-diameter thick-walled pipes, they can be easily dealt with. This high degree of adaptability enables enterprises to adjust production strategies in a timely manner according to changes in market demand, quickly respond to customers’ diversified order needs, and improve the company’s market competitiveness and adaptability.
Controllable quality: In order to ensure that each pipe meets high quality standards, the production line is equipped with complete quality inspection equipment and monitoring systems. During the production process, key parameters such as temperature, pressure, speed, etc. are monitored and precisely controlled in real time. Once an abnormal parameter is found, the system can issue an alarm in time and make automatic adjustments to avoid product quality problems caused by parameter fluctuations. For example, high-precision pressure sensors and temperature sensors are installed at the extrusion die, which can monitor the pressure and temperature changes in the die in real time to ensure that the raw materials are always in the best molding state during the extrusion process, thereby ensuring the stable and reliable quality of the pipe.
Energy saving and environmental protection: As the world’s attention to environmental protection and sustainable development continues to increase, Sharc Machinery actively adopts energy-saving technologies and environmentally friendly materials in the research and development and manufacturing of pipe production lines. By optimizing the energy management system of the equipment, energy consumption is reduced and the production cost of the enterprise is reduced. At the same time, in the production process, the discharge of waste gas, waste water and waste residue is strictly controlled, and environmentally friendly raw materials and processes are used to meet the environmental protection requirements of the country and the industry. For example, circulating water cooling technology is used in the cooling system, which greatly reduces the waste of water resources; in the heating system of the equipment, high-efficiency and energy-saving heating elements are used to improve energy utilization efficiency.
Easy maintenance: The structural design of the equipment fully considers the convenience of maintenance, adopts a modular design concept, and the connection between each component is simple and easy to disassemble. Commonly used parts are highly versatile and easy to purchase on the market, which reduces the maintenance cost. At the same time, the equipment can monitor its own operating status in real time during operation, and can quickly locate the fault point through the fault diagnosis system, provide accurate maintenance information for maintenance personnel, reduce the downtime of the equipment caused by maintenance, and improve the use efficiency of the equipment. For example, when a certain equipment component fails, the maintenance personnel can quickly understand the cause and location of the fault through the fault diagnosis display screen of the equipment, replace the corresponding parts in time, and restore the normal operation of the equipment.
High safety: During the design and manufacturing of the equipment, Sharc Machinery always puts the personal safety of operators first, fully considers various safety factors, and is equipped with complete safety protection devices. For example, a guardrail is installed on the transmission part of the equipment to prevent operators from accidentally contacting high-speed running parts; multiple protection functions such as leakage protection and overload protection are set in the electrical system to ensure that the equipment can cut off the power supply in time when an electrical failure occurs to avoid electric shock accidents. At the same time, the equipment is also equipped with an emergency brake button. In an emergency, the operator can quickly press the button to stop the equipment and ensure the safety of personnel and equipment.
Preparation before production and key points in production
Before preparing to invest in PE pipe production, sufficient and detailed preliminary planning is the key to ensure smooth production. When the customer selects Sharc Machinery’s pipe production line, the company’s professional team of engineers will immediately take action to tailor a detailed factory layout design plan for the customer based on the size specifications and production process of the equipment. The plan will clearly mark the best placement of each device in the factory, as well as the access information of water, electricity, gas and other infrastructure. Reasonable factory layout can not only improve the utilization rate of production space and reduce the material transmission distance between equipment, but also optimize the production process and improve production efficiency. For example, placing the automatic vacuum feeder near the raw material storage area can facilitate the rapid feeding of raw materials; arranging the extruder, cooling equipment and traction machine in sequence according to the production process can enable the smooth flow of pipes in the production process and avoid production bottlenecks caused by unreasonable equipment layout.
The selection of raw materials plays a decisive role in the quality of PE pipes. HDPE granules are the main raw materials for the production of PE pipes. Customers can flexibly choose new materials or recycled materials according to the market positioning and quality requirements of their own products. New materials have high purity and excellent performance. The pipes produced are of stable quality and excellent performance. They are suitable for high-end markets with extremely high requirements for pipe quality, such as drinking water pipelines. Recycled materials have cost advantages. In some application scenarios with relatively low requirements for pipe performance, such as ordinary drainage pipes, recycled materials can be reasonably used to effectively reduce production costs while ensuring product quality. In addition, professional technicians and skilled operators are the core force to ensure smooth production. Sharc Machinery has an experienced technical service team that can provide customers with a full range of technical support, including equipment installation and commissioning, operation training, and technical guidance during the production process. Through systematic training, operators can master the operation skills of the equipment and correctly deal with various problems that may arise during the production process to ensure the efficient operation of the equipment and the stability of product quality.
In the production process, strict control of raw material quality is the cornerstone of ensuring product quality. The use of high-quality HDPE granular raw materials can effectively reduce impurities and defects inside the pipe and improve the strength, toughness and corrosion resistance of the pipe. For example, in some high-end pipe production projects, the use of imported The pipes produced by the company are made of high-quality HDPE raw materials from abroad, and they have excellent performance in pressure resistance and aging resistance, and can meet the requirements of long-term use in harsh environments, thereby enhancing the company’s brand image and market competitiveness.
Experienced operators play a vital role in the production process. With keen observation and rich practical experience, they can accurately control production parameters, timely discover and solve problems in the production process, and effectively reduce the defective rate. At the same time, by continuously optimizing the production formula, the production cost can be reduced while ensuring the quality of the pipe. For example, according to the characteristics of different raw materials and market price fluctuations, the proportion of raw materials can be reasonably adjusted to reduce the proportion of expensive raw materials without affecting the performance of the pipe, thereby improving production efficiency.
The use of co-extrusion technology to produce multi-layer pipes is an effective way to reduce costs while ensuring the performance of the pipe. In the production process of multi-layer pipes, relatively low-priced raw materials can be used for the middle layer, and their filling and supporting functions can be used to reduce the overall raw material cost; while high-quality raw materials are used in the outer layer of the pipe to ensure the hardness, wear resistance and appearance quality of the pipe. This layered pipe structure not only meets the performance requirements of pipes in different application scenarios, but also achieves effective cost control, providing enterprises with more competitive product solutions.
In addition, strict control of parameters such as screw speed, barrel temperature, mold temperature, traction speed and cooling temperature is the key to producing high-quality PE pipes. The screw speed directly affects the plasticization effect and extrusion volume of the raw materials. A reasonable screw speed can fully plasticize the raw materials and ensure the uniformity of the quality of the pipe. The precise control of the barrel temperature and mold temperature is crucial to the flow performance and molding quality of the raw materials. Too high or too low temperature may cause deformation, bubbles, rough surface and other quality problems in the pipe. The matching degree between the traction speed and the extrusion speed determines the uniformity of the wall thickness and length accuracy of the pipe, and must be accurately adjusted according to the specifications of the pipe and the production process requirements. The control of the cooling temperature directly affects the crystallinity and physical properties of the pipe. The appropriate cooling temperature can quickly cool and shape the pipe to obtain good strength and toughness.