日本クロイド工業 List of Products and Services

In this document, we outline what our company can do regarding SDGs and environmental issues. What is truly necessary is to use the correct knowledge correctly. Understand our roles and fulfill those roles in appropriate places. Our gear technology offers "low noise" and "high efficiency," but we believe that what we can do regarding environmental issues is to use it correctly. 【Initiatives to Reduce Environmental Impact】 ■ Use environmentally friendly materials ■ Reduce energy consumption ■ Decrease waste ■ Minimize noise and vibration ■ Prevent water pollution ■ Protect biodiversity *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

This document introduces the effects of viscosity. In the world, there are various liquids ranging from low viscosity to high viscosity. What does the difference in viscosity affect? The answer is piping resistance. Piping resistance refers to the pressure in that line. [Effects of Viscosity] ■ If we compare it to humans ■ In the case of pumps ■ Cavitation and countermeasures *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

I would like to introduce "Bingham fluids," which are one type of non-Newtonian fluid. These fluids exhibit flow only after a certain amount of force is applied, and their viscosity decreases beyond that threshold. Examples include butter spread on toast and paste-like toothpaste. 【Examples】 ■ Margarine ■ Tomato ketchup ■ Toothpaste ■ Shoe cream ■ Pâté *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

I would like to introduce "thixotropic fluids," which are one type of non-Newtonian fluid. Also known as inverse thixotropic fluids, they have the opposite property of thixotropic fluids, where the viscosity decreases when a force is applied. Instead, these fluids increase in viscosity over time when a force is applied. A representative example is clay slurry. 【Representative Example】 ■Clay Slurry *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

I would like to introduce "thixotropic fluids," which are one type of non-Newtonian fluid. These fluids experience a decrease in viscosity when stirred or subjected to force, and they revert to their original viscosity over time. The act of applying paint, such as with coatings, utilizes this property. 【Examples】 ■ Paint ■ Cocoa ■ Cleansing cream ■ Grease *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

I would like to introduce "dilatant fluid," which is one of the non-Newtonian fluids. Unlike pseudoplastic fluids, which decrease in viscosity when a force is applied, dilatant fluids increase in viscosity when a force is applied. Examples include whipped cream that becomes thicker when stirred and cornstarch mixed with water. 【Examples】 ■ Starch solution ■ Clay slurry ■ Paint *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

I would like to introduce "pseudoplastic fluids." It is one of the non-Newtonian fluids, and its viscosity decreases when a force is applied. Examples include food in tube containers, ballpoint pens, and cleaning agents that release liquid when pressed, used around toilet rims. 【Examples】 ■ Polymer melts ■ Adhesive pastes ■ Starch pastes ■ Paints and dyes ■ Grease ■ Condensed milk *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

I would like to introduce "Newtonian fluids." The main fluid characteristics of liquids can be broadly divided into Newtonian fluids and non-Newtonian fluids. Newtonian fluids follow Newton's law of viscosity, where shear stress is proportional to shear rate. Examples include water, sugar solutions, and vegetable oils. 【Examples】 ■ Water ■ General solutions ■ Sugar solutions ■ Salt solutions ■ Motor oil ■ Vegetable oil *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

I will introduce the properties of liquids (fluids). Every liquid has viscosity, and viscosity changes with temperature, flow rate, and pressure. The main fluid characteristics of liquids can be broadly divided into Newtonian fluids and non-Newtonian fluids. 【Non-Newtonian Fluids】 ■ Pseudoplastic fluids ■ Dilatant fluids ■ Thixotropic fluids ■ Rheopexic fluids ■ Bingham fluids *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

A pump is a machine that functions like the "heart" of the human body. Generally, it is used to transfer liquids from a lower location to a higher location, or from a certain place to a desired location. By performing mechanical work on the liquid, it imparts energy in the form of "position, velocity, and pressure" to that liquid. A "positive displacement pump" is a machine that gives energy to the liquid by changing the volume of the liquid in a fixed space through reciprocating or rotary motion. It has good metering capabilities, relatively high suction and discharge lift, and is often used with fluids that have a viscosity higher than that of water. 【What is a pump?】 ■ A machine that functions like the "heart" of the human body ■ A machine for transferring liquids from lower to higher locations ■ Imparts energy in the form of "position, velocity, and pressure" to liquids *For more details, please refer to the PDF document or feel free to contact us.

• Special Pump

A "positive displacement pump" is a machine that gives energy to a liquid by changing its volume through reciprocating or rotary motion within a fixed space. It has good metering capabilities, relatively high suction and discharge lift, and is often used with fluids that have higher viscosity than water. Our company is capable of manufacturing pumps tailored to your needs, so please feel free to consult us when you require assistance. 【Features of Positive Displacement Pumps】 ■ Good metering capabilities and relatively high suction and discharge lift ■ Used in many industries, including food and pharmaceuticals (for fluids with high viscosity or in high-pressure piping lines) ■ Can also be used in devices with enhanced flow accuracy through electrical control *For more details, please refer to the PDF document or feel free to contact us.

• Special Pump

"Non-positive displacement pumps" are machines that rotate an impeller within a casing to impart energy to a liquid. They are used as a general term for centrifugal pumps, mixed flow pumps, axial flow pumps, and others. In particular, centrifugal pumps are one of the most commonly used types of pumps in the world, primarily used for transporting water. 【Features of Centrifugal Pumps】 ■ They utilize centrifugal force generated by the rotation of the impeller to increase the pressure of the fluid. ■ The flow discharged from the impeller is primarily directed towards the inner surface that is perpendicular to the main shaft. *For more details, please refer to the PDF document or feel free to contact us.

• Special Pump

Pumps are not only a part of industrial products but are also used in various situations in daily life, enriching our lives. Pumps can be broadly classified into "non-positive displacement pumps" and "positive displacement pumps" based on their principles and structures. Our company is capable of manufacturing pumps that meet our customers' requirements. Please feel free to consult us when needed. 【Features】 ■ Non-positive displacement pumps - Machines that rotate an impeller within a casing to impart energy to the liquid. ■ Positive displacement pumps - Machines that change the volume of liquid in a fixed space through reciprocating or rotary motion to impart energy to the liquid. *For more details, please refer to the PDF materials or feel free to contact us.

• Special Pump

Pumps require "suction capability" and "discharge capability." These capabilities have been developed through technological advancements to maximize performance as needed. The variety of pump genres and types has increased to accommodate different applications across various fields. Our company is capable of manufacturing pumps tailored to our customers' requests. Please feel free to consult us when you need assistance. 【What are the necessary capabilities for a pump?】 ■ "Suction capability" to draw liquid into the pump's inlet ■ "Discharge capability" to transport the liquid that has entered the pump to the desired location *For more details, please refer to the PDF document or feel free to contact us.

• Special Pump

A pump can be likened to the "heart" of the human body, serving a similar function as a machine. Generally, it is used to transport liquids from a lower location to a higher location, or from a certain place to a desired location. We are currently offering the technical handbook "Fundamental Knowledge of Pumps You Can No Longer Ask About" to those who are interested. 【Contents of the Handbook】 ■ About Pumps - What exactly is a "pump"? - What capabilities are necessary for a pump? ■ Types of Pumps - Types based on structure - What is a non-positive displacement pump? - What is a positive displacement pump? *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The "Elicroid Gear" is a continuous curve gear with a single point of contact, specifically developed for fluid transport pumps. It has high transmission efficiency, incorporates a great degree of design flexibility, and is easy to manufacture. The discharge volume and torque remain constant at any moment of rotation, eliminating the causes of vibration and noise. By having no enclosed volume and increasing the module of the teeth to reduce the number of teeth, it is easy to maintain a very high vacuum efficiency of 80% even at a vacuum of 700 mmHg. 【Features】 ■ No occurrence of trapping phenomenon ■ Easy transport of high-viscosity liquids or high-speed rotation ■ Discharge volume and torque remain constant at any moment of rotation We are currently seeking new applications and feedback. If you have any comments, please provide them through the inquiry button.

• gear

For more details, please refer to the PDF document or feel free to contact us.

• Positive Displacement Pump

We would like to introduce the history of Nihon Croyd Industrial Co., Ltd. The company was founded in 1957. We established Ohta Machinery Manufacturing Co., Ltd. and began the manufacturing and sales of "Elicroid Gear Pumps" and "Rotary Pumps." Later, in 1989, we established Nihon Croyd Industrial Co., Ltd. and continued the manufacturing and sales of the same products. Fifty years have passed since our founding, and currently, approximately 150,000 of our pumps are in operation mainly in the chemical and construction industries. In recent years, we have also increased our exports, with achievements in over 100 countries. [Overview] ■ Founded: 1957 ■ Approximately 150,000 of our pumps are in operation mainly in the chemical and construction industries ■ In recent years, we have also increased our exports, with achievements in over 100 countries *For more details, please refer to the PDF document or feel free to contact us.

• Positive Displacement Pump

At Nippon Croydon Industrial Co., Ltd., we mainly handle "Elicroid Gear Pumps" and "Croid Rotary Pumps." Additionally, we offer various special products that are not listed in the catalog. The "5W" allows for the easy transfer of high-viscosity liquids while degassing, thanks to the installation of a degassing device on the pushing apparatus. It is used for transferring processed products in aquaculture and livestock, semi-solid liquids, and high-viscosity food pastes. In addition, we have gel pumps like the "DSW-1000V" for transferring raw materials for superabsorbent polymers and diapers. 【5W Features】 ■ Easily transfers high-viscosity liquids while degassing ■ Simple disassembly, cleaning, and assembly ■ Key components of the roller section are treated with wear-resistant Kanizen plating ■ Rollers with no metal contact ■ Used for transferring processed products in aquaculture and livestock, semi-solid liquids, and high-viscosity food pastes *For more details, please refer to the PDF materials or feel free to contact us.

• Positive Displacement Pump

There are two typical seals used in the rotating parts of pumps: "mechanical seals" and "packing seals." Packing seals seal the fluid inside the pump through contact pressure. In the shaft sealing area of the pump, a slight leakage that travels along the shaft surface is necessary for cooling and lubrication of the packing. On the other hand, mechanical seals are devices that minimize fluid leakage, offering the advantages of low leakage amounts and infrequent replacement. 【Features of Mechanical Seals】 ■ Shaft movement: Rotation ■ Leakage amount: Extremely low ■ Lifespan: Long ■ Power loss: Small friction area and friction coefficient result in low power loss ■ Replacement work: Requires disassembly of the pump *For more details, please refer to the PDF materials or feel free to contact us.

• Positive Displacement Pump

Are you experiencing issues such as noise or pulsation with the pumps and gears you are currently using? Let us introduce you to the Elicroid Gear, which can solve such problems. Our company uses the "Double Helical Elicroid Gear" for energy-efficient gear pumps. This allows for eco-friendly operation with "high efficiency" and "low noise." In addition, our lineup of pumps includes a variety of options, starting with the simple structure "T-type Gear Pump," as well as the "JT-type Gear Pump," which has a jacket section on the pump body, and the "RT-type Gear Pump," which has a built-in relief valve. We also offer products with special drive mechanisms. 【Features of the Double Helical Elicroid Gear】 ■ Continuous curve with point contact ■ Capable of stable liquid delivery with high efficiency ■ Low pulsation, stable, and smooth *For more details, please refer to the PDF materials or feel free to contact us.

• Positive Displacement Pump

I will introduce the structure of gear pumps. The "external gear pump" has a small outer diameter and a long width, and it rotates on two axes, allowing for an increase in peripheral speed. On the other hand, the "internal gear pump" has a large outer diameter and a narrow width, and it rotates on a single axis, making it difficult to increase peripheral speed. When set to 0.2L/rev, there are differences related to the size of the pump. [Main Structure of the Pump] ■ External Gear Pump - Small outer diameter and long width - Rotates on two axes - Allows for an increase in peripheral speed *For more details, please refer to the PDF document or feel free to contact us.

• Positive Displacement Pump

All liquids have viscosity, and their viscosity changes with temperature, flow rate, and pressure. The main fluid characteristics of liquids are divided into two types: "Newtonian fluids" and "non-Newtonian fluids." Newtonian fluids have a constant viscosity regardless of changes in shear rate, and examples include water, general solutions, and vegetable oils. On the other hand, non-Newtonian fluids are further categorized into "pseudoplastic fluids" and "dilatant fluids," with examples including adhesive pastes, margarine, and starch solutions. 【Main Newtonian Fluids】 ■ Water ■ General solutions ■ Sugar solutions ■ Salt solutions ■ Motor oil ■ Vegetable oils *For more details, please refer to the PDF document or feel free to contact us.

• Positive Displacement Pump

A pump is a machine invented with the idea of conveniently obtaining water, which is absolutely essential for human life, and has gradually evolved. It has developed to be commonly used for transporting liquids from low places to high places, or from a certain location to a desired location. In other words, it mechanically works on liquids to provide them with energy in the form of position, velocity, and pressure. Pumps can be classified into two types based on their principles and structures: "non-positive displacement pumps" and "positive displacement pumps." Our company manufactures positive displacement pumps, specifically "rotary pumps" and "gear pumps." 【Overview of Pumps】 ■ A machine for transporting liquids from a certain location to a desired location ■ Provides energy in the form of position, velocity, and pressure to liquids ■ Has two important capabilities: "suction capacity" and "discharge capacity" ■ Can be classified into non-positive displacement pumps and positive displacement pumps based on principles and structures *For more details, please refer to the PDF document or feel free to contact us.

• Positive Displacement Pump

Here is an introduction to the drive methods for the "Elikuroido Gear." Since gear pumps are of the positive displacement type, unlike spiral pumps, they can transfer a volume proportional to the rotational speed at any RPM. There are "direct drive methods" where the pump and the prime mover are driven via a shaft coupling, and "belt drive methods" where the drive is typically reduced through a belt. Additionally, the "continuously variable transmission drive method" is used when there is a need for continuous flow conversion during operation, utilizing a continuously variable transmission to change the rotational speed through direct or belt drive. Fine adjustments to the flow rate are also possible. 【Drive Methods】 ■ Direct Drive Method ■ Belt Drive Method ■ Continuously Variable Transmission Drive Method *For more details, please refer to the PDF document or feel free to contact us.

• gear

Our company is capable of applying a special plating called "Kanizen Plating" depending on the intended use. The adhesion strength on soft steel is 24 kg/mm², which is approximately 2.5 times that of hard chrome (9 kg/mm²). It prevents "galling and seizing" caused by intermetallic friction with metals such as titanium and 18-8 stainless steel. Additionally, the hardness is Hv500 in the as-plated state and up to 1000 Hv in the heat-treated state. 【Features】 ■ Chemical composition: -Ni 90-92%, P 8-10%, making it excellent in corrosion resistance. ■ Wear resistance: Significantly better than electroplating in the plated state. ■ Adhesion: The adhesion strength on soft steel is 24 kg/mm², about 2.5 times that of hard chrome. ■ Abrasion resistance: Prevents "galling and seizing" due to intermetallic friction. ■ Uniformity: The coating is complete, and its precision is within ±10% of the required thickness. ■ Hardness: Hv500 in the as-plated state, up to 1000 Hv in the heat-treated state. *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service

The involute gear pump has a variable trapped volume at the meshing part as the gears rotate. During contraction (Figure A), it generates abnormally high pressure, which puts stress on the bearings and causes vibration and noise. Additionally, during expansion (Figure C), a vacuum is created, leading to the separation of air in the pumped liquid and the formation of bubbles. As clearly shown in the figures, the inter-tooth volume at the meshing part has a narrow inlet, which causes cavitation during the inflow of the pumped liquid, resulting in vibration, noise, pitting, and reduced efficiency. 【Issues (Partial)】 ■ The inter-tooth volume at the meshing part has a narrow inlet, causing cavitation during the inflow of the pumped liquid. ■ Causes vibration, noise, pitting, and reduces efficiency. ■ The slip rate of the gears is large, and there are significant fluctuations at the meshing point. ■ Promotes wear of the gears, leading to decreased capacity and power loss. *For more details, please refer to the PDF document or feel free to contact us.

• gear
• Other pumps

The "Elicroid Gear" is a continuously curved gear with a single point of contact, developed specifically for fluid transport pumps. It has high transmission efficiency, incorporates a great degree of design freedom, and is easy to manufacture. The discharge volume and torque remain constant at any moment of rotation, eliminating the causes of vibration and noise. By having no trapped volume and increasing the tooth module to reduce the number of teeth, it is easy to maintain a very high vacuum efficiency of 80% even at a vacuum of 700 mmHg. 【Features】 ■ No trapping phenomenon ■ Easy transport of high-viscosity liquids or high-speed rotation ■ Discharge volume and torque remain constant at any moment of rotation ■ Does not cause issues due to wear ■ No restrictions on the minimum number of teeth *For more details, please refer to the PDF materials or feel free to contact us.

• gear

The "CW Series" is an external bearing gear pump that achieves smooth transfer with reduced pulsation by adopting an epicycloidal gear with point contact continuous curved gears. It can transfer with low vibration and low noise, resulting in less strain on internal components and a long lifespan. It is thoroughly pursued for high efficiency, allowing operation with low current, which also leads to reduced running costs. It has a proven track record of transferring high-viscosity liquids up to 2 million cP and can be manufactured for pressures exceeding 2.0 MPa. It also accommodates a variety of materials and sealing methods. 【Features】 ■ Enables gentle laminar transfer of liquids with reduced pulsation ■ No bearing troubles due to liquid contact ■ Used in various fields such as food, paint, and chemicals ■ Compatible with various materials and sealing methods *For more details, please refer to the PDF materials. Feel free to contact us with any inquiries.

• Other pumps
• Special Pump

This is a large rotary pump capable of transferring ultra-high viscosity liquids (1,000,000 cp). The maximum discharge pressure is 3.0 MPa, and the discharge volume is 10 liters per revolution. Structurally, the rotary pump is a type of rotary pump and is classified as a positive displacement pump in principle. This rotary pump has two fan-shaped blades inside the casing, which rotate in sync via a pinion gear, and there is no contact between the blades. Additionally, there is no contact with the casing or cover. As the blades rotate, the chamber pressure on the suction side (the pressure in the space between the two blades and the casing) decreases, allowing liquid to enter. As the blades continue to rotate, the liquid moves along the inside of the casing toward the discharge side. Furthermore, the blades interlock, and the liquid is expelled from the pump.

• Positive Displacement Pump

High-viscosity food pastes are transported and supplied in many factories around the world. By attaching a degassing device to the feeding device (hopper), high-viscosity liquids can be easily transported. The workability and operability are also good, and cleaning is simple. The rotary pump is structurally a type of rotary pump and is classified as a positive displacement pump in principle. This rotary pump has two fan-shaped blades inside the casing, which rotate in sync via a pinion gear, and there is no contact between the blades. There is also no contact with the casing or cover. As the blades rotate, the chamber pressure on the suction side (the pressure in the space between the two blades and the casing) decreases, allowing liquid to enter. As the blades rotate, the liquid moves along the inside of the casing towards the discharge side. Furthermore, the blades interlock, and the liquid is discharged from the pump.

• Positive Displacement Pump

The transfer and supply of high-viscosity food pastes are used in many factories around the world. By attaching a degassing device to the pushing device (hopper), high-viscosity liquids can be easily transferred. The workability and operability are also good, and cleaning is simple. The rotary pump is structurally a type of rotary pump and is classified as a positive displacement pump in principle. This rotary pump has two fan-shaped blades inside the casing, which rotate in sync via a pinion gear, and there is no contact between the blades. There is also no contact with the casing or cover. As the blades rotate, the chamber pressure on the suction side (the pressure in the space between the two blades and the casing) decreases, allowing liquid to enter. As the blades rotate, the liquid moves along the inside of the casing toward the discharge side. Furthermore, the blades interlock, and the liquid is discharged from the pump.

• Positive Displacement Pump

This is a pump that incorporates a jacket function in a W shape. It is capable of maintaining the temperature of the transferred liquid using steam, thermal oil, etc. A rotary pump is structurally a type of rotary pump and is classified as a positive displacement pump in principle. This rotary pump has two fan-shaped blades inside the casing, which rotate in sync via a pinion gear, and there is no contact between the blades. Additionally, there is no contact with the casing or cover. As the blades rotate, the chamber pressure on the suction side (the pressure in the space between the two blades and the casing) decreases, allowing liquid to enter. As the blades continue to rotate, the liquid moves along the inside of the casing toward the discharge side. Furthermore, the blades interlock, and the liquid is discharged from the pump.

• Positive Displacement Pump

Outstanding performance for transporting all types of liquids! This is a highly versatile rotary pump that can be used for high polymer polymers, chocolate, asphalt, and more. There is also a stainless steel SW type for the wetted parts. Inside the casing of the rotary pump, there are two fan-shaped blades that rotate in sync via a pinion gear, with no contact between the blades themselves. Additionally, there is no contact with the casing or cover. As the blades rotate, the chamber pressure on the suction side (the pressure in the space between the two blades and the casing) decreases, allowing liquid to enter. As the blades continue to rotate, the liquid moves along the inside of the casing toward the discharge side. Furthermore, the blades interlock, and the liquid is expelled from the pump.

• Positive Displacement Pump

The RJT type features a safety valve and jacket built into the pump body, and the bearings are of a sliding bearing type with an internal bearing structure. Additionally, the gears and shafts are the same as those of the T type, JT type, and RT type. The epicycloidal gear is a point-contact continuous curve gear developed for fluid transport pumps, offering high transmission efficiency, design flexibility, and ease of manufacturing. The epicycloidal gear pump is a positive displacement gear pump that uses an epicycloidal gear. The casing, gears, shafts, etc., can be coated with Kanizen upon request. It is a high-performance pump that excels in corrosion and wear resistance, operates at high speeds with low noise, and has minimal cavitation.

• Other pumps

The RT type features a built-in safety valve in the pump body, and the bearings are of a sliding bearing type with an internal bearing structure. Additionally, the gears and shafts are the same as those of the T type and JT. The shaft seal is standardly a gland packing type, but depending on the type of liquid and your requirements, it can be changed to a mechanical seal type. All pipe connections are of the JIS 10K flange type, available in both threaded and welded styles. The cycloidal gear is a point contact continuous curve gear developed for fluid transport pumps, offering high transmission efficiency, design flexibility, and ease of manufacturing. The cycloidal gear pump is a positive displacement gear pump that uses cycloidal gears. The casing, gears, shafts, etc., can be coated with Kanizen as per your requirements. It is a high-performance pump that excels in corrosion resistance and wear resistance, and operates with low noise and minimal cavitation even at high speeds.

• Other pumps

The JT type features a structure with a jacket (suitable for steam, hot water, and thermal oil) on the pump body, and the bearings are internal sliding bearings. The gears and shafts are the same as those of the T type and RT type. The shaft seal is standardly a gland packing type, but depending on the type of liquid and your requirements, it can be changed to a mechanical seal type. The pipe connections are made with special flanges, available in both threaded and welded types. This is a positive displacement gear pump using an epicyclic gear, with the casing, gears, shafts, etc., optionally coated with Kanizen for excellent corrosion and wear resistance. Additionally, this epicyclic gear is a point contact continuous curve gear developed specifically for fluid transport pumps, offering high transmission efficiency, a high degree of design freedom, and ease of manufacturing. As a result, the combination of materials and mechanisms allows for a pump that operates at high speeds with low noise, minimal cavitation, excellent corrosion resistance, long lifespan, and high efficiency.

• Other pumps

The Elicroid Gear is a "single-contact continuous curve gear" developed as a pump for fluid transport. Upon request, it can be coated with Kanizen. The T-type has the simplest structure as a gear pump. The bearing is an internal bearing type sliding bearing, and it does not have a built-in safety valve. The shaft seal is standardly a gland packing type, but depending on the type of liquid and your request, it can be changed to a mechanical seal type. It is a high-performance pump that excels in corrosion and wear resistance, operates quietly at high speeds, and has minimal cavitation.

• Other pumps

The "Croid Rotary Pump" is a rotary pump designed to withstand the pumping of high-viscosity liquids containing solid materials. It has two lobes inside that rotate in sync via a timing gear, with no metal contact, resulting in minimal changes to the liquid quality. Additionally, it can be easily disassembled and assembled, making cleaning straightforward. 【Features】 ■ The bearing and timing gear section are completely separated and independent from the pump flow path. ■ High wear resistance. ■ Fully sanitary design that allows for easy disassembly, assembly, and cleaning. ■ Low-speed, fan-shaped rotors that do not destroy or alter the liquid quality. ■ The shaft seal uses a gland packing method (V-seal or mechanical seal methods are also possible depending on usage conditions). *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The "Elicroid Gear Pump" is a positive displacement gear pump that uses an elicrod gear. The casing, gears, shafts, etc., can be coated with Kanizen upon request, providing excellent corrosion and wear resistance. Additionally, the elicrod gear has been developed specifically as a pump for fluid transport, featuring a point contact continuous curve gear that offers high transmission efficiency, a high degree of design flexibility, and ease of machining. The combination of materials and mechanisms allows for low noise even at high speeds, minimal cavitation, and results in a corrosion-resistant, long-lasting, high-efficiency pump. 【Features】 ■ No trapping occurs, preventing abnormal high pressure or vacuum ■ Structure allows for easy transport of high-viscosity liquids or high-speed rotation ■ Constant discharge volume and torque eliminate causes of vibration and noise ■ Slip rate is very small, less than 1/20 of the involute ■ Operation is quiet, and the liquid does not foam *For more details, please refer to the PDF materials or feel free to contact us.

• Other pumps

This catalog is a comprehensive catalog of Nihon Croydon Industrial Co., Ltd., a manufacturer specializing in liquid transport pumps. It introduces a wide range of products, including the Elicroid gear pumps "T-type gear pump" and "JT-type gear pump," as well as the Croydon rotary pumps "W-type" and "JW-type." [Contents] ■ Elicroid Gear Pumps ■ Croydon Rotary Pumps *For more details, please download the PDF or feel free to contact us.

• Other pumps