Product Introduction
The structure of a two-roll open mixing mill is not complex: two parallel rolls rotate relative to each other at different speeds. Material is drawn into the roll gap (roll distance) and subjected to intense shearing and compression. Water or oil can be circulated inside the rolls for heating/cooling, thus controlling the material temperature. The […]
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Comprehensive Analysis of Extruders: Working Principle, Classification, Structure, Application Industries, and Selection Guidelines An extruder, fully known as a screw-type plastics extruder, is the core primary equipment in the field of polymer material processing. It is often hailed as the “machine tool of the plastics processing industry.” Its core principle is to use the rotational
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What is the R&D value of PET/PP spinning? The answer may not lie in the laboratory, but in the end-application fields of seven major industries. HALU’s laboratory twin-screw melt spinning machine is helping customers in various industries quickly transform new material formulations into evaluable fiber samples. Packaging Industry: Biodegradable PBAT/PLA flat and monofilament yarns for
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Researchers working on new materials have all experienced this: They painstakingly produce a sample in the lab using a desktop spinning extruder, and the performance seems promising. However, when they confidently prepare to scale up the production line, the resulting product either lacks strength, has a rough surface, or simply cannot be extruded. Upon investigation,
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The compounding materials vary greatly across different industries: the packaging industry uses white masterbatch (50% titanium dioxide content) and filler masterbatch; agriculture requires anti-aging masterbatch; industry prefers high-filler cable materials; food grade requires low-migration color masterbatch; medical relies on medical-grade silicone and TPE; and special materials challenge functional systems such as carbon nanotubes and graphene.
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In the field of plastic film production, cast extrusion and blow extrusion are two major production methods. These two technologies play a crucial role in various industries, including medical and pharmaceutical packaging. They differ in terms of process, performance, and applications. This article will explore these differences in detail and analyze the application of these
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Longitudinal streaks are one of the most troublesome problems in cast film machine experiments—periodic or random patterns appear along the traction direction, sometimes fine like sharkskin, sometimes coarse and twisted. Many people’s first reaction is “the die is clogged” or “the material is bad,” and then they blindly clean and change materials, but the problem
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I. Comparison of blown film characteristics of three biodegradable materials Material Melt strength Thermal stability Difficulty PLA Low Poor (easily hydrolyzed and thermally degraded) The membrane bubble is prone to shaking, has large lateral shrinkage, and the membrane is brittle. PBAT medium better Highly adhesive, prone to sticking, and difficult to roll up. PBS Low/medium
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When desktop extruders are mentioned, many people immediately think of “3D printing filament machines.” However, by changing the die head and auxiliary equipment, the same desktop extruder can produce cast films, blown films, sheets, granulation, and even melt spinning. This is the concept of a “desktop polymer processing platform” advocated by Hartek. I. Universal Main
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Amidst the wave of innovation in the food industry, reconstituted rice is gaining widespread attention as an emerging food ingredient. However, the high costs and low efficiency resulting from repeated trials in the formulation development of reconstituted rice have become a key bottleneck restricting technological breakthroughs for enterprises. To address this need, Hartek’s lab twin-screw
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When developing polymer films, blown film machine lines are used. Laboratory blown film machines are divided into single-layer and multi-layer types. The R&D team needs to select the technology according to its own needs. Single-layer vs. multi-layer co-extrusion blown film experimental lines: How to choose according to R&D needs? The following content provides an objective
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In university polymer materials laboratories and corporate R&D centers, banbury mixers (also known as closed-loop rubber mixing mills) are core equipment for research on the blending and modification of plastics, rubber, and elastomers, filler dispersion, and reactive processing. A suitable laboratory banbury mixer should not only accurately reflect the mixing behavior of materials but also
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When conducting research and development on new materials, processes, or formulations in the laboratory, ensuring experimental efficiency and scalable reproducibility of data during sample preparation is crucial. As the core equipment for sample preparation, the performance adaptability of the laboratory twin-screw granulation line directly impacts the research results. When selecting a lab twin-screw granulation line,
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What’s Lab Two Roll Open Mixing Mill? A laboratory two roll open mixing mill is a small, specialized laboratory piece of equipment used to process or prepare rubber or plastic mixtures. Its structure is similar to that of an industrial mixer, but it is smaller and typically processes only a small amount of raw material
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A micro twin-screw extruder from Hartek has been installed, commissioned, and operated by a university in Qingdao, Shandong Province, and has been officially delivered to the customer’s laboratory for use. This equipment is specifically designed for the blending and modification of trace polymer materials, formulation screening, and small-batch preparation of high-value materials. Its compact structure
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Performance of the Laboratory Three-Layer Co-Extrusion Blown Film Machine: Applications of co-extrusion blown film machine: Technical Parameters： Model / 型号 HTBS-20C Screw Diameter / 螺杆直径 20mm L/D Ratio / 长径比L/D 28:1 Max. Speed / 最高转速 120rpm Heating/Cooling Method / 加热/冷却方式 Electrical heating / Air cooling Max. Temp. / 最高温度 350℃ Temp. Control Accuracy / 温控精度
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In polymer materials research laboratories, twin-screw extruders are crucial for material blending modification, reactive extrusion processes, and the preparation of functional masterbatches; their selection directly impacts experimental efficiency. Currently, mainstream mixing equipment is mainly divided into two types: conical twin-screw extruders and parallel twin-screw extruders. Although they appear similar, differences in screw structure lead to
Selection Guide for Conical and Parallel Twin-Screw Extruder Lab Machine Read More »
The blown film defect detection test line consists of a drive system, extrusion system, ring die, blow-up device, cooling air ring, traction system, winding system, film defect detection system, and electrical control system. It is widely used in food packaging, agricultural covering, and medical materials. The film gel and black spot detection system is an
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Using a desktop extruder to create your filaments can be cost-effective, as it can save you money on buying pre-made filaments.A desktop extruder allows you to customize the color and material of your filament, allowing you to create unique 3D prints. With a desktop extruder, you can recycle old 3D prints or plastic waste and
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The 3D filament extrusion line consists of a precision single-screw extruder, wire die, water cooling system, wire storage system, traction system, diameter measuring instrument system, winding system, and measurement and control system, which can realize functions such as wire extrusion, cooling, diameter measurement, and winding. 3D Filament Extrusion Line Working Principle A filament extruder is
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Lab Two-roll Open Mixer A laboratory two-roll open mixer has two horizontally arranged rollers that rotate in opposite directions at different speeds. When material is fed into the upper area between the two rollers, it is drawn between them due to friction and adhesion between the material and the roller surfaces, as well as the
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Have you ever encountered this frustrating problem? You bought the best machines, used top-secret formulas, but the extruded films are riddled with fisheyes, uneven in thickness, or inexplicably deteriorate and discolor? Waste piles up, and your profits are practically wasted! Hey, stop blaming the raw materials, and stop firing your technicians. Today, I’m going to
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In experimental operation of a small two-roll open mill, the speed ratio of the front roll to the rear roll, the temperature setting, and the roll gap are three process factors related to the mixing quality. These parameters affect the shear strength, dispersion uniformity, roll wrapping behavior, and thermal history of the material, ultimately impacting
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Hartek Technology Lab Single-Screw Melt Spinning Machine: Used for the preparation of PA6 nascent fibers. Features melt extrusion, spinning, and automatic winding functions; temperature and speed are adjustable. Produces uniform and stable spinning, suitable for subsequent stretching processes. Supports process development for nylon 6 industrial yarns or high-strength fibers.
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Benchtop melt spinning machines have emerged as indispensable tools in the realm of materials science research, offering a compact yet powerful solution for innovative material development. These machines stand out as versatile platforms for experimental research, providing researchers with precise control over the fiber formation process. Unlike industrial-scale machines designed for large-volume production, benchtop machines
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In the food packaging industry, cast film is highly favored for its excellent barrier properties, transparency, and heat-sealing performance. Choosing the right laboratory casting film machine is crucial for developing innovative packaging materials and optimizing production processes. Below is a comprehensive selection guide for laboratory casting film machines, tailored to the specific needs of the
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Extruder Temperature Control: A Comparison of Water Cooling and Air Cooling Extruders, as crucial equipment in plastic processing, require precise temperature control during extrusion to ensure smooth extrusion and molding of plastic materials. The cooling system plays a vital role in the extruder’s heating and cooling system, and barrel cooling methods primarily include water cooling
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Performance Characteristics Application of twin screw extrusion machine Feasibility verification of sheet forming for biodegradable materials such as PLA, PBAT, and PHA; Small-scale extrusion of natural polymer composite systems such as starch-based and cellulose-based materials; Experimental production of modified sheets using highly filled inorganic fillers (such as calcium carbonate and talc) or recycled plastics; Research
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Seamless transition from pilot-scale testing to mass production of ultrafiltration membranes Desktop twin-screw extruders provide efficient, economical, and reliable technical solutions for ultrafiltration membrane research and development. They not only accelerate the development of innovative materials and processes but also save companies R&D costs, reduce technical risks, and effectively promote the transformation of R&D results
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Lab Blown Film Machine I. Technical Requirements and Equipment Characteristics for Composite Film R&D With the continuous improvement of packaging material performance requirements, traditional single-layer films are increasingly unable to meet the increasingly complex application needs. In contrast, multilayer composite films, by combining the advantages of different materials, can significantly improve the barrier properties, mechanical
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