龍マニュファクチャリング・アンド・オートメーション・ギアーズ List of Products and Services

Our company can replace various gear pumps with the "High Efficiency DEX-GP (Standard Pressure) Gear Pump." By changing the housing, we can adapt the outer diameter shape to various pump configurations. For key components such as gear shafts, bearings, and V-seals, we use common parts that are always in stock. If you are facing issues because your operating gear pump has been replaced with a next-generation model or if production has already ended, please feel free to consult us. Currently, we are offering materials summarizing the effects of replacement and points to check for the timing of gear pump replacement! [Effects of Replacement (Excerpt)] ■ Full Replacement: Same Size Exchange (M Company's First Generation Pump) - The pump can be updated to a new one simply by replacing it. - Minimal work is required as no adjustments are needed, and the motor, reducer, and universal shaft can be reused as is. - Replacement significantly improves volumetric efficiency and wear resistance. *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Other pumps

This document explains the energy-saving aspects of extrusion molding based on the arrangement of gear pumps and screen changers. It includes issues related to extrusion equipment, the installation of gear pumps and static mixers, and measures to enhance gear pump performance. Please make use of this information when considering the installation of gear pumps. [Contents] ■ Overview ■ Issues with Extrusion Equipment ■ Installation of Gear Pumps and Static Mixers ■ Considerations for Gear Pump Installation Location ■ Estimation of the Effects of Gear Pump Installation ■ Conclusion *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

Our company can immediately replace existing pumps or discontinued pumps with high-efficiency DEX pumps. This document provides detailed explanations of the names and functions of the DEX pumps that can be replaced, as well as the issues that need to be resolved. If you are considering or wish to replace a gear pump, please take a moment to read this. [Contents] ■ Discharge pressure of gear pumps ■ Names of DEX gear pumps that can be replaced immediately ■ Current status of each gear pump and compatibility with DEX gear pumps ■ Resolution of issues ■ Claims of Ryuu M&AG *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The "Manual Screen Changer (HSC)" can operate at high pressure due to its excellent sealing system. It allows for easy filter replacement simply by moving the handle lever during normal operation stops, requiring no maintenance. It is suitable for low-cost small-scale production processes. 【Features】 ■ Capable of high-pressure operation due to an excellent sealing system ■ Can be installed in a small space when combined with a gear pump ■ Easy filter replacement ■ Easy maintenance ■ Low cost *For more details, please refer to the external link page or feel free to contact us.

• Filtration Equipment

The "Bolt-type Screen Changer (BSC)" features filters placed at one location on each bolt at the end of two internal flow paths, operated by hydraulic cylinders. Filter cleaning is made possible by alternately replacing the filters on the bolts, allowing operation without stopping the entire production line. Additionally, we propose a new installation method for the screen changer, positioned downstream of the gear pump. This allows for a reduction in the extrusion machine discharge pressure to 30-50 Bar, improving the efficiency of the extrusion equipment by over 30%. 【Features】 ■ Increases productivity by allowing filter replacement without stopping the entire line ■ Continuous production is possible due to a two-stage air discharge structure ■ Suppresses pressure increase during increased discharge volume ■ Internal heaters enable quick heating and easy temperature adjustment *For more details, please refer to the external link page or feel free to contact us.

• Filtration Equipment

The "Flat Screen Changer (FSC)" quickly switches between two filters installed on a flat plate using a hydraulic unit, minimizing exchange losses on the production line. We propose a new installation method for the screen changer, placing it downstream of the gear pump. This allows for a reduction in the extruder discharge pressure to 30-50 Bar, improving the efficiency of the extruder system by over 30%. 【Features】 ■ Applicable to various sizes of extruders ■ Capable of operating at high pressure due to an excellent sealing system ■ Can be installed in a small space when combined with a gear pump ■ Easy maintenance due to the filters being on a flat plate ■ Reduces screen change time and minimizes resin retention time ■ Special sealing structure prevents resin leakage *For more details, please refer to the external link page or feel free to contact us.

• Filtration Equipment

The "screen changer" filters out foreign substances such as metal, inorganic particles, carbides, degraded materials, unmelted resin, and gels from molten resin, preventing a decline in product quality. It is compatible with almost all resins except PVC. Our company handles products such as the "flat screen changer" manufactured by GMA. 【Features】 ■ Filters out foreign substances like metals and gels from molten resin ■ Prevents decline in product quality ■ Compatible with almost all resins except PVC *For more details, please refer to the external link page or feel free to contact us.

• Filtration Equipment

The screen changer is installed to filter out foreign substances such as carbides and unmelted resin in the molten resin, with the aim of preventing a decline in product quality. We propose to install the screen changer downstream of the gear pump. This helps to reduce unnecessary pressure on the extruder, and by adopting our designed "DEX Gear Pump," it is possible to achieve over 30% energy savings across the entire extruder. 【Features】 ■ Can reduce the discharge pressure of the extruder ■ Enables stabilization of resin temperature reduction ■ Over 30% energy savings across the entire extruder *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Other processing machines

Our company can replace various gear pumps with the "High Efficiency DEX-GP (Standard Pressure) Gear Pump." By changing the housing, we can adapt the outer diameter shape to various pump configurations. For key components such as gear shafts, bearings, and V-seals, we use common parts that are always in stock. If you are facing issues with gear pumps that have been replaced by next-generation models or if production has already ceased, please feel free to consult us. 【Effects of Replacement (Excerpt)】 ■ Full Replacement: Same Size Exchange (M Company's First Generation Pump) - The pump can be updated to a new one simply by replacing it. - Minimal work is required as no adjustments are needed, allowing for the direct reuse of the motor, reducer, and universal shaft. - Replacement significantly improves volumetric efficiency and wear resistance. *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Other pumps

The "Watanabe Theory" refers to the concept of estimating resin viscosity using shear rates that take into account the reverse flow velocity during reverse flow calculations within a gear pump. The application of this theory to the shape of the gear pump has resulted in our company's design of the "DEX Gear Pump." As a result, we have achieved a volumetric efficiency of over 95% for PS-based resins at a pressure boost of 150 to 180 Bar. [Features (DEX Gear Pump)] ■ Application of the "Watanabe Theory" to the shape of the gear pump ■ Achieved volumetric efficiency of over 95% *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Other pumps

From laboratory level to mass production level, gear pumps are used for applications such as the transfer of high-viscosity fluids like molten resins, elastomers, adhesives, and hot melts. If you are struggling with gear pump failures or poor operating efficiency, this is a must-see! You can improve operating efficiency with an immediate replacement pump! When trying to replace a malfunctioning gear pump that is currently in operation, many people express concerns about the rising replacement costs due to the successor model having changed to a next-generation type. Currently, we are offering materials summarizing the effects of replacement and points to check for the timing of gear pump replacement! [Effects of Replacement (Excerpt)] ■ Full Replacement: Same Size Replacement (M Company’s First Generation Pump) - Simply replacing the pump allows for an upgrade to a new pump. - Minimal work is required as no adjustments are needed, and the motor, reducer, and universal shaft can be reused as is. - Replacement significantly improves volumetric efficiency and wear resistance. *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Other pumps

This document introduces the benefits of introducing the DEX gear pump (gear pump) by installing it on the extrusion molding line, which can help suppress the rise in resin temperature, using tables and other materials. We want to minimize resin heating. We want to increase production by 20%. We want to achieve energy savings of over 20%. We want to minimize waste at the start of operation. If you have any technical requests, please feel free to consult with us. [Contents] ■ Excellent boosting and metering functions of the DEX gear pump (gear pump) ■ Gear pump (gear pump) for Ryuu M&AG's extruder ■ DEX gear pump (gear pump) inquiry table ■ Examples of DEX gear pump (gear pump) applications *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps
• Other processing machines

The "Bolt-type Screen Changer (BSC)" filters out foreign substances such as metal, inorganic particles, carbides, degraded materials, unmelted resin, and gels from molten resin, preventing a decline in product quality. A filter is placed at one location on each bolt at the end of the two internal flow paths, and it is operated by each hydraulic cylinder. Filter cleaning is made possible by alternately replacing the filters on the bolts, allowing operation without stopping the entire production line. We propose a new installation method for the screen changer, placing it downstream of the gear pump. 【Features】 ■ Increases productivity by allowing filter replacement without stopping the entire line ■ Enables continuous production through a two-stage air discharge structure ■ Suppresses pressure increase during increased discharge volume ■ Easy heating and temperature adjustment in a short time with the internal heater *For more details, please refer to the linked page or feel free to contact us.

• Filtration Equipment

A "static mixer" is a stationary mixer (line mixer) without a drive unit. This time, we are delivering a static mixer specifically designed to equalize the temperature distribution of molten plastic. Of course, it also accommodates various mixing, splitting, and dispersing of molten plastics. (Features) ■ Mixing with a sufficient length and number of elements ■ No unnecessary mixing to prevent heat generation ■ Size selection that considers the viscosity characteristics of plastic, which is a non-Newtonian fluid. Our static mixer divides and mixes four times with the first element. Furthermore, the second element performs another four divisions and mixes at a position rotated 90 degrees. ◎ For more details, please refer to the PDF document or feel free to contact us.

• Mixer/agitator

The "DEX Gear Pump" is a gear pump designed for extruders that minimizes pressure fluctuations at the die and helps control the rise in resin temperature when installed in an extrusion molding line. The heat source is the extruder. The extruder should focus on melting and kneading while leaving the necessary discharge pressure to the gear pump. The gear pump, which pursues improved volumetric efficiency, is very effective for shear-sensitive resins such as olefin-based resins like PE and PP, as well as PS resins. It is also anticipated to be used in the manufacturing process of separator films for lithium-ion batteries; for more details, please inquire. 【Features】 ■ Operates with stable high volumetric efficiency ■ Keeps discharge fluctuations to a few percent even with pressure changes from 100 bar to 160 bar ■ Required pressure on the suction side is around 20 to 30 bar ■ Pursues high volumetric efficiency with no dead spots ■ Molds compatible with high-viscosity resins and high-viscosity thermoplastic elastomers are also available *For more details, please request documentation or view the PDF data available for download.

• Other pumps
• Other processing machines