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After the plastic is melted, it is coated and compounded at a high speed with a series of paper, kraft paper, non-woven fabric, aluminum foil, interlining, etc. in a high-temperature melting state to achieve ideal tensile strength, compactness, barrier properties, and improve the moisture resistance of the material.
Mainly screw extruder: The extruder adopts the special screw design of the laminating machine. Its characteristics are low calorific value, good plasticization, and it is an excellent product of PP/PE material.
Screw Specifications: Diameter: Φ 90 | Aspect ratio: 32:1 | Structure: single screw | Heating power: 40 KW.
Reducer: Hard tooth surface made of alloy steel after repeated heat treatment. The tooth surface is specially ground, running smoothly, with low noise, and circulating cooling device.
Host & Inverter: Siemens motor, rated power: 90KW host, frequency conversion: ABB inverter.
After the filter plate is produced for a period of time, the plastic melt enters the flow channel, requiring mesh replacement upon reaching a predetermined pressure difference. The hydraulic system pushes the plunger to move the filter plate out of position while inserting a fresh one. Equipped with a front pressure sensor and display to monitor clogging for timely changes.
Features a special structure of mixing elements with intersecting steel bars arranged at right angles, separated by a 45-degree angle. This divides the flowing melt into multiple strands, promoting uniform dispersion and plasticization. Essential for extruders requiring high precision.
High forming cooling capacity and excellent temperature uniformity result in films with minimal roll non-uniformity and uniform thickness. Stable high-speed operation is achieved via precision-machined roll surfaces.
Adopts a double-station servo unwinding device to provide high stability and mobility. Reduces unevenness and ensures a highly stable unwinding tension is maintained throughout the operation.
The system not only maintains accurate feeding continuously, but also has the flexibility to change formulations according to market demands or technology upgrades.
An intelligent and precise feeding system is a good start for a high-quality product.
Single screw extruder direct extrusion technology is one of the most important features of this production line. The successful application of single screw extruder makes the online compounding of EVA/POE resin and various additives a reality.
This meaningful improvement is the result of deep understanding and extensive practice with single-screw extruders. This innovation not only has technical advantages but also greatly reduces operating costs.
The excellent mixing effect of the single screw extruder plays a leading role in the production of EVA/POE films because it involves a large number of additives and requires good compounding.
Unique screw elements and screw profiles are designed according to the physicochemical properties of the EVA/POE resin. It keeps each ingredient homogeneously mixed while avoiding pre-crosslinking. It is also the basis for high productivity.
The special cooling channel of the calender keeps the temperature of the calender surface uniform. A special silicon-coated calender can effectively remove the stress of the EVA/POE film, thereby significantly reducing shrinkage.
The gear pump made in Germany is used to ensure that the melt enters the die head, and the quantitative and pressure are stable. Closed-loop intelligence keeps the system running stably.
The unique T-die for EVA/POE is designed according to the extrusion rheology of solar cell grade EVA/POE resin to ensure stable extrusion at low temperature.
This is one of the conditions that guarantees low shrinkage and high light transmittance.
EVA POE solar film extrusion line automatic online thickness gauge records and reports thickness in time. The automatic constant tension winding system is designed with reference to the mechanical properties of EVA film. Less marginal waste and high yield are derived from the continuous optimization of each unit in long-term production practice. These optimizations help reduce operating costs significantly.
From relays to industrial computers, we have more options. The logic setting between each function module makes precise control easy. Safer production is the result of well-thought-out mechanical and electrical protection. Precise synchronization and coordinated control of each unit guarantees a high-quality end product.
The system is designed to coat and compound melted plastic at high speeds with paper, kraft paper, non-woven fabric, aluminum foil, interlining, and similar materials to achieve optimal tensile strength, compactness, barrier properties, and moisture resistance.
When a preset pressure difference forms, a hydraulic system pushes the plunger to swap out the active filter plate. The operator can quickly clean the surrounding melt and replace the filter mesh safely while another plate maintains operation, monitored by pressure sensors.
It enables direct extrusion and online compounding of EVA/POE resin with various additives. The system features uniquely designed screw elements and profiles that ensure a homogeneous mix, prevent pre-crosslinking, and substantially lower operating costs.
Low shrinkage and high light transmittance are guaranteed by a unique T-die designed for low-temperature extrusion rheology, a special silicon-coated calender that removes stress from the film, and an automatic constant tension winding system.
The production line features a double-station automatic rewinding system paired with a magnetic powder tension design. It offers constant tension control and synchronization ratio speed control, reaching operating speeds of 50m/min, 100m/min, and up to 150m/min.
The control system uses logical coordination settings between functional modules to sync units accurately. Safety is maximized through robust mechanical and electrical protection mechanisms, allowing flexible formulation changes and stable system operation.
