ケーティーアールジャパン List of Products and Services

Do you have any concerns regarding the design and maintenance of agricultural machinery, such as: "I want a coupling that can absorb torsional vibrations from engine machinery." "The lubrication frequency is high, making maintenance difficult." "It takes a long time to install or replace." "If only there were a custom-made cooler for agricultural machinery..." At KTR, we offer a wide range of products that address these challenges, including flange couplings, jaw couplings, frictional fasteners, and air-cooled heat exchangers. This document clearly explains solutions to on-site issues. We also provide specific examples of adoption by companies that have implemented our products! For more details, please download the document using the button below! Feel free to contact us with any inquiries about our products.

• Coupling
• Plate Heat Exchanger

When selecting a joker coupling that uses polyurethane resin, it is generally necessary to verify the type of operating oil that may scatter and the compatibility between chemical agents and resin components. Standard ROTEX spiders are not resistant to phosphate ester-based operating oils or chlorinated hydrocarbon-based operating oils; in such cases, solutions using high chemical resistance polyamide resin, such as the following, are effective: - Resin gear coupling BoWex M: A metal × resin gear coupling using a polyamide sleeve - Flexible coupling ROTEX: Special spiders made of polyamide material or PEEK material can be selected For more details, please download the catalog and check. Feel free to contact us with any inquiries.

• Coupling

It's hard to find a coupling that fits the spline shaft... Challenges such as 'processing the sleeve and additional parts increase both cost and delivery time!' At KTR, we have a wide range of broaching tools at our headquarters in Germany, allowing us to accommodate flexible spline processing! We offer a variety of couplings compatible with spline shafts tailored to your applications, so please download our product lineup catalog from the link below and check it out.

• Coupling

"I want something with high vibration absorption performance." "I am looking for materials that are resistant to aggressive liquids such as detergents, oils, and acids." "If there is a coupling that does not cause liquid leakage..." For those searching for couplings that meet these strict conditions, this is a must-see! At KTR, we offer a variety of types of couplings and torque limiters that can solve such challenges. For more details, please download the materials from the button below! Feel free to contact us with any inquiries about our products!

• Food Processing Equipment
• Beverage Production Equipment
• Food Cleaning Equipment

ROTEXT features a simple three-part structure consisting of two metal hubs and one rubber spider! It adopts a plug-in structure that allows for assembly simply by fitting the hubs mounted on the drive shaft and driven shaft axially. Therefore, it can be installed even within housings or covers (blind assembly), contributing to the efficiency of the installation process! *You can view the product catalog and a document summarizing "Examples of Challenges and Solutions" from the download button below. Please feel free to contact us with any inquiries regarding the product.

• Coupling

Addressing challenges such as "It takes time to exchange and maintain couplings" and "Installation is complicated and difficult..."! KTR offers a wide range of "half-split couplings" designed with a hub that is split in the radial direction, allowing us to propose the optimal coupling for your application! We have adopted a split structure that allows for easy installation and removal without moving the driving and driven machines! This significantly reduces installation time. Additionally, it facilitates easy maintenance and contributes to reducing downtime. We also have half-split couplings available with intermediate shafts (spacers) and made entirely of steel. For more details, please refer to the "Half-Split Coupling Lineup" document. Feel free to contact us with any questions or inquiries regarding our products!

• Coupling
• Power Transmission Equipment

This document provides basic knowledge about "Flexible Jaw Couplings ROTEX" and answers customer concerns and requests in an easy-to-understand Q&A format. It also includes explanations with diagrams regarding the types of couplings, installation methods, and specifications of the spider, so please take a moment to read it!

• Coupling
• Shaft couplings

The KTR-made coupling spider comes in two types: the flexible jaw coupling ROTEX (for three-phase motors) and the backlash-free servo coupling ROTEX GS (for servo motors), each differing in shape and size. This document explains the types of couplings, allowable temperatures, hardness, and how to specify your order with illustrations, so please take a look. It is a must-read for customers who want to replace their spider but don't know how to identify the product, want to know the confirmation items when ordering, or wish to replace it with one that has a higher hardness than the current spider! Additionally, feel free to contact us with any questions or inquiries regarding the spider.

• Coupling

In KTR Japan's webinar, we will explain useful information regarding the structure and problem-solving related to products such as couplings, heat exchangers (coolers, radiators), and torque limiters. It is packed with information that can provide hints for solving the challenges you face! This is a must-see for those who want to know more about the products, are struggling with couplings, or want to hear directly about various application examples. We also welcome questions during the seminar, so please feel free to join us. Additionally, we will provide explanatory materials as a gift after the seminar! The first session held in June 2025 and the second session in July 2025 have concluded. We thank everyone who participated. We will upload information about the next session as it becomes available, so please look forward to it!

• Technical Seminar
• Seminar

KTR's air-cooled heat exchangers come in two types: custom-made MMC coolers and catalog standard OAC coolers. In this catalog, you can find the latest information on the structure and technical data of MMC/OAC coolers, their applications, examples of adoption, selection information, and accessories for coolers! 【Features of MMC Coolers】 ■ Custom coolers can be manufactured from a single unit ■ Cooling air, water, and oil with one cooler ■ Robust construction with excellent durability ■ Options for selecting the optimal outside fins and inside fins for your usage conditions 【Features of OAC Coolers】 ■ Catalog standard products ■ Standard stock available depending on size (overseas factories), with short delivery times possible ■ A wide lineup ranging from small to large products ■ Fan motor drive options include 12V, 24V, 200V, 400V, and hydraulic * Please inquire about motors other than those listed above. ■ Delivery without a motor is also possible * For details, please check the product catalog from the download button below. We also have a Q&A document summarizing "issues and questions related to coolers." Please be sure to check it along with the catalog!

• Heat exchanger
• cooler

KTR's air-cooled heat exchangers (coolers and radiators) "MMC Series" are custom-made products that can accommodate your specific requirements! We can manufacture custom products tailored to your needs, such as cooling capacity, dimensions, fluids, and drive methods, starting from just one unit. With a robust design using the plate and bar method, we can achieve large-capacity coolers and multimedia coolers that can cool air, water, and oil with a single unit! **Features of MMC Coolers** - Custom coolers can be manufactured from one unit (suitable for retrofitting existing equipment and special applications) - Cools air, water, and oil with a single cooler - Sturdy construction with excellent durability - Options for outside/inside fins suitable for your usage conditions We are currently offering a free set of three documents related to heat exchangers! Please download and check them using the button below. **Document Lineup** (1) Product Catalog: For checking product structure and technical data (2) Q&A Document: Clear explanations of common questions from customers (3) Selection Guide: Introduction to selection programs and case studies Feel free to contact us with any inquiries about our products!

• Heat exchanger
• cooler

This document presents frequently asked questions from customers regarding "air-cooled heat exchangers (coolers and radiators)" in an easy-to-understand Q&A format. It is filled with information that addresses challenges such as "I want to cool air, water, and oil with one cooler to save space" and "I would like to have a custom cooler made just for me!" We provide detailed explanations of features and structures, complete with diagrams, so please take a moment to read through it! 【Content Overview (Partial)】 Q. What types of coolers (heat exchangers) does KTR offer? A. KTR's coolers are broadly categorized into two types: custom-made MMC and catalog standard OAC. Q. What types of equipment can they be used with? A. They can be used with construction machinery, agricultural machinery, pumps, compressors, hydraulic equipment, ships, engine-driven generators, wind turbine generators, and more. Q. Are there coolers that can be used in harsh environments exposed to sea winds? A. We offer coolers designed for marine use. *For more details, please download the PDF document from the link below. Feel free to contact us with any inquiries!

• Heat exchanger
• cooler

In the pharmaceutical industry, equipment durability and cleanliness are required in environments where chemicals and solvents are used. The BoWex resin gear coupling, which employs gears made of polyamide resin, excels in chemical and oil resistance, contributing to the maintenance of a clean environment. [Application Scenarios] - Rotating equipment such as pumps and fans in pharmaceutical factories - Maintaining equipment durability and cleanliness in environments using chemicals and solvents - Preventing equipment failure due to corrosion and wear - Reducing maintenance effort and costs [Benefits of Implementation] By using the BoWex resin gear coupling, you can contribute to improving the durability and cleanliness of equipment in pharmaceutical factories. The resin gears, which excel in chemical and oil resistance, prevent corrosion and wear caused by chemicals and solvents, extending the lifespan of the equipment. Additionally, they are maintenance-free and do not require lubrication, leading to reduced maintenance effort and costs!

• Coupling
• Power Transmission Equipment
• Vacuum pump

In applications such as semiconductor manufacturing equipment, where high-precision positioning is required, are you struggling with space and cost issues, such as "traditional couplings becoming too large"? KTR's disk/leaf spring coupling RADEX-NC combines high rigidity and flexibility, enabling size reduction! 【Usage Scenarios】 - High-precision positioning in semiconductor manufacturing equipment - Precision machining in machine tools - Torque transmission in servo drive systems - Drive in high-temperature and corrosive environments 【Benefits of Implementation】 - Space-saving through size reduction of the coupling - Cost reduction - Achievement of high-precision positioning - Suppression of vibrations and shocks - Stable operation in high-temperature and corrosive environments

• Coupling
• Power Transmission Equipment
• Actuator

I want a coupling that can be used in a clean room. Are there any concerns about wear or contamination with the equipment you are using? KTR offers a variety of products that can solve such issues. We also consider custom orders that are not listed in the catalog, so please feel free to contact us!

• Coupling
• Food Packaging Machinery
• pump

This document presents frequently asked questions from customers regarding the "Magnet Coupling MINEX-S" in an easy-to-understand Q&A format. It explains features and structures with illustrations, so please take a moment to read it! 【Contents (Partial)】 Q. What is a magnet coupling? A. A magnet coupling is a coupling that transmits power non-contact using magnetic force. Q. What is the allowable torque and maximum rotational speed? A. The allowable torque for the standard type is up to 1,000 Nm, and the maximum rotational speed is 3,600 rpm. Q. How does MINEX-S prevent liquid leakage? A. It prevents liquid leakage by sealing with an O-ring installed between the shroud and the component that attaches to the shroud. *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings
• Sealing

A new lineup, "ROTEX GS ZRS," has been added to the widely used ROTEX GS in work machines, FA devices, and more. This series, designed with applications such as conveyors in mind, offers five sizes ranging from GS 19 to GS 42. Made with aluminum spacers, it is lightweight and has a low moment of inertia, while KTR's unique design achieves high torsional rigidity. It contributes to high-precision operation even in servo-driven applications where synchronization is required. Additionally, with a double cardanic structure featuring spiders positioned in two places, it allows for a large misalignment tolerance. The design also incorporates a damping resin spider, which helps reduce the load on surrounding equipment such as bearings.

• Coupling

KTR Japan offers a range of couplings, including the "ROTEX Flexible Coupling," which is maintenance-free, flexible against twisting, and absorbs misalignment, as well as gear couplings, high-rigidity flange couplings, explosion-proof couplings, and more. KTR can propose applications for various uses, including pumps, FA equipment, and engine machinery. Our KTR Japan team supports Japanese customers based on years of experience and proven expertise. 【Product Lineup (Partial)】 ■ROTEX Flexible Coupling ■REVOLEX KX Flexible Pin and Bush Coupling ■BoWex Gear Coupling ■BoWex FLE-PA/ELASTIC Engine Flange Coupling ■RADEX-N Steel Laminate Coupling *For more details, please refer to the PDF document or feel free to contact us.

• Coupling

EVOLASTIC is a highly flexible, backlash-free flexible coupling that allows for the connection of shafts and flanges. The preloaded elastomer absorbs torsional vibrations and shock loads in the drive system. It also efficiently dampens solid-borne sound while simultaneously absorbing misalignments (axial displacement, parallel displacement, angular displacement) that occur between the driving and driven machines. The elastomer, an important component, is shaped into a ring by vulcanizing and bonding rubber and metal. The permissible temperature for natural rubber types (WN, SN, MN) is up to 90°C, while for EPDM types (WE, SE, ME) it is up to 110°C. It is possible to select different rubber hardnesses without changing the size of the coupling. The basic design is broadly categorized into bolt-connected types and plug-in types. Hubs and hubs, or hubs and flanges, can be combined according to the mounting dimensions of the driving and driven machines. This allows for flexible responses to various mounting dimension requirements. *For more details, please download the PDF or feel free to contact us.*

• Coupling

This product is a coupling that can be used in machine tools, high-speed rotating test machines, turbine-driven machinery, and more. Compared to our conventional products, the allowable torque has increased by 66%, the maximum peripheral speed has increased by 34%, and the moment of inertia has decreased by 42%. 【Features】 ■ High torque ■ High-speed rotation ■ Low moment of inertia *For more details, please refer to the PDF materials or feel free to contact us.

• Coupling
• Power Transmission Equipment
• shaft

The "MINEX-S" is a synchronous rotating type magnetic coupling that transmits torque through the magnetic force generated between the inner rotor and the outer rotor. Since torque is transmitted without contact between parts, there is no wear on the components. Therefore, it is suitable for clean rooms, food machinery, packaging machinery, and other applications where wear particles can be problematic. The drive side and the driven side are separated by a containment shroud (partition), allowing it to be used as a sealing component in pumps and stirrers. Because it does not wear due to contact with rotating parts like mechanical seals or gland packing, it can reduce maintenance time and costs. It also demonstrates high sealing performance when handling hazardous fluids such as strong acids. 【Features】 ■ Synchronous rotating type ■ Can be used as a sealing component in pumps and stirrers ■ Complies with ATEX directives (explosion-proof directives), making it usable in hazardous areas ■ Special designs such as disk types can also be manufactured *For more details, please refer to the PDF document or feel free to contact us.

• Vacuum Equipment

GEARex is a metal (all-steel) gear coupling that complies with AGMA standards. It transmits high torque while absorbing misalignment (axial displacement, parallel displacement, angular displacement) that occurs between connected shafts. The combination of gears with a crowning shape and grease lubrication significantly reduces gear wear during torque transmission. With a design that combines high torque transmission performance and excellent durability, it is suitable for a wide range of applications across various industrial fields! The standard design is for horizontal mounting, but we can manufacture vertical mounting options upon request. We offer optimal couplings tailored to your needs, including types with brake discs, intermediate shafts (spacers), and shiftable link couplings. For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Coupling
• Power Transmission Equipment
• gear

KTR leverages its expertise in servo drive couplings—developed in the machine tool industry—to meet the evolving needs of customers in the material handling sector. Whether you're looking for: A coupling to span 3 meters between pulleys A solution to reduce vibration A compact design for limited installation space A product that can handle high torque We’re here to help. Share your requirements and challenges with us—KTR offers a wide selection of products to meet your needs.

• Coupling
• Power Transmission Equipment
• Other conveying machines

The engine generates torsional vibrations due to explosions, and if the torsional vibration frequency matches the natural frequency of the drive shaft system, including the coupling, there is a risk of damage to the drive components due to resonance. At KTR, we use a torsional vibration analysis program to propose couplings suitable for your company. KTR's couplings for engines have been adopted by domestic and international manufacturers in construction machinery, road machinery, agricultural machinery, compressors, etc., with a global shipment of over 200,000 units annually.

• Coupling

KTR supplies a wide range of products for wind power generation equipment, including lamina couplings and brakes between the gearbox and turbine in the global market. We also have a track record of adoption in Japan. Please feel free to contact KTR when considering new projects or maintenance! 【Product lineup for wind power generation equipment】 Lamina couplings / Brakes / Air-cooled heat exchangers *For more details, please download the PDF or feel free to contact us.

• Coupling
• brake
• Power Transmission Equipment