長浜製作所 List of Products and Services

We offer contract services for high-speed rotation and destruction testing using our high-speed rotation testing device "Centorio100." The maximum rotation speed is 240,000 rpm, and it can accommodate chamber temperatures up to 250°C. Testing is also possible under vacuum conditions (below 1 mbar) and high-temperature conditions. During the tests, we can accurately measure the points of plastic and elastic deformation, allowing for consistency evaluation with design calculations and analysis of failure behavior, resulting in high-precision data acquisition. Additionally, we capture the moment of failure with a high-speed camera and report waveform data and rotational behavior. The primary subjects of testing are motors and rotor components for electric vehicles, but the service can be applied across various industries, including metal materials, aerospace, and energy equipment. Facilities capable of actually "breaking" rotating bodies are limited in Japan, making this ideal for theoretical validation and safety design evaluation. *For more details, please download the PDF or feel free to contact us.*

• Strength Testing Equipment
• Public Testing/Laboratory
• Contract measurement

Our company owns the high-performance testing device "Centorio 100," which can handle ultra-high-speed rotation tests of up to 240,000 rpm and high-precision evaluations in environments up to 250 °C. We conduct contract evaluations under various conditions, including verification tests for plastic and elastic deformation of electric vehicle (EV) motors, as well as destructive tests, durability tests, imbalance evaluations, and vacuum tests. We confirm the consistency between our customers' design calculations and actual measured behaviors, supporting the improvement of reliability.

• Thermal dilatometer
• Strength Testing Equipment
• Public Testing/Laboratory

Our "Spin Test Service" is a service that actually spins rotating parts at high speeds to verify their "strength." We conduct experiments to determine how fast they can withstand and where their breaking limits are, evaluating safety and durability. We also analyze product shapes to ensure they reach the target rotational speed and provide design and manufacturing of attachments to achieve those goals. 【Spin Test】 ■ Overspeed Test: Strength Evaluation ■ Durability Test: Fatigue strength evaluation through repeated rotational profiles ■ Low Cycle Fatigue Test (LCF): S-N curve creation, creep property evaluation ■ Burst Test: Evaluation of failure conditions *For more details, please download the PDF or feel free to contact us.

• Other Testing Contract

The "Balancing Test Service" is the job of correcting the "wobble" of rotating parts. We measure and adjust the balance to ensure that components such as motors and turbines rotate smoothly, and we investigate the causes of vibrations and propose countermeasures. In cases where the rotor shape is complex, we can design and manufacture dedicated attachments to accommodate it. 【Features】 ■ Supports measurement for ultra-small to medium-sized rotors ■ Balancing is possible even for magnetized rotors ■ In cases where the rotor shape is complex, we can design and manufacture dedicated attachments to accommodate it *For more details, please download the PDF or feel free to contact us.

• Other Testing Contract

We would like to introduce the "Customer Development Support Service" provided by Nagahama Manufacturing Co., Ltd. Using our evaluation technology for spin testing, balancing, and rotating machinery vibration, we offer proposals, experiments, and shape measurements for the spin testing of your newly developed products. Additionally, we analyze the product shape to ensure that it reaches the target rotational speed and provide design and manufacturing of attachments to achieve that goal. 【Service Contents】 ■ Overspeed ■ Burst ■ Low Cycle Fatigue Effects ■ Technical Consulting ■ Balancing *For more details, please download the PDF or feel free to contact us.

• Other Testing Contract

Nagahama Manufacturing offers the "General Purpose Balancing Machine (Soft Type)." It can be installed on floors above the second level without requiring a special foundation. It is particularly suitable for measuring lightweight and high-speed rotating rotors. We provide three types with different spring structures, allowing us to propose solutions tailored to various customer needs. 【Features】 ■ Ideal for measuring lightweight and high-speed rotating rotors ■ Can be installed on floors above the second level without requiring a special foundation ■ Measurements are conducted above the resonance frequency, allowing for a high upper limit on rotational speed, and angle errors do not occur due to rotor-dependent calibration ■ Three types with different spring structures are available *For more details, please refer to the PDF materials or feel free to contact us.

• Other measurement, recording and measuring instruments
• Other machine tools

The "353RNRQ" is a balancing machine specifically designed for propeller shafts. Propeller shafts are composed of multiple parts and operate at high rotational speeds, which can cause deflection; therefore, it is necessary to measure the balancing speed close to the actual vibration conditions of the machine. It is also possible to equip a correction device based on customer requests. 【Features】 ■ Specifically for propeller shafts ■ Correction device can be equipped based on customer requests ■ Equipped with the microprocessor measurement unit "MMi-902P" *For more details, please refer to the external link or feel free to contact us.

• Other measurement, recording and measuring instruments
• Other machine tools

The "200FNLR" is a balancing machine specifically designed for tire assemblies (tire + wheel). It measures imbalance and marks the position of the imbalance. Tires marked with correction positions are transported to the correction station, where correction weights are attached by the operator. 【Features】 - Specifically for tire assemblies (tire + wheel) - Measures imbalance and marks the position of the imbalance - Tires marked with correction positions are transported to the correction station, where correction weights are attached by the operator - Tires are flipped in front of the operator to attach correction weights on both the front and back sides - Transported by a conveyor belt *For more details, please refer to the external link or feel free to contact us.

• Other measurement, recording and measuring instruments
• Other machine tools
• Other markings

The "110MMST" is a compact balancing machine for high-speed turbocharger core assemblies, where each component unit is integrated. It can accommodate different workpieces by changing attachments. Additionally, it supports single and dual surface measurements, allowing for various correction amount analyses. 【Features】 ■ Each component unit is integrated and compact ■ Can accommodate different workpieces by changing attachments ■ Capable of unbalance measurement and tracking measurement ■ Supports single and dual surface measurements, enabling various correction amount analyses *For more details, please refer to the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments
• Other machine tools

The "010/020MMBT" is a balancing machine developed with a focus on high-precision measurement beyond conventional standards, adaptability to flexible production systems, and low cost, necessary for the downsizing and miniaturization of turbochargers. It can accommodate shaft-mounted turbines and compressor wheels with simple setup changes. For compressor wheels with a diameter of 38mm or more, a lifter device can be installed. 【Features】 ■ Further improved accuracy (30% increase compared to our previous models) ■ Can accommodate shaft-mounted turbines and compressor wheels with simple setup changes ■ Achieves longer lifespan and cost reduction through the adoption of new ceramic bearings for shaft-mounted turbines ■ Installation of a lifter device is possible (for compressor wheels with a diameter of 38mm or more) *For more details, please refer to the PDF materials or feel free to contact us.

• Other measurement, recording and measuring instruments
• Other machine tools

The "821/823LAMC" is a final balancing machine developed to flexibly accommodate the balancing of crankshafts within the production line. It can measure, correct, and check all automatically with a small installation footprint, allowing for free design of the production line layout. In the correction station, new technology has significantly reduced the clamping force, eliminating the need for a hydraulic system. 【Features】 <821LAMC> ■ Adopts friction drive ■ Mainly used in production lines for inline 3-cylinder and 4-cylinder crankshafts <823LAMC> ■ Adopts hook drive ■ Suitable for production lines of V6 cylinder crankshafts *For more details, please refer to the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments
• Other machine tools

The "823LAMM" is a mass centering machine that achieves both the maintenance of specified weight with counterweights and balancing. By measuring the mass center of the crankshaft and processing around the mass center, this balance is realized. It is compatible with inline 3-cylinder and 4-cylinder crankshafts, and switching between them can be done easily. Additionally, we also introduce the final balancing machine "821/823LAMC." 【Features】 ■ Full cover on the processing section reduces the scattering of chips during cutting ■ Use of a main loader allows for flexible arrangement of each component ■ Machining of reference surfaces can be added as an option *For more details, please download the PDF or contact us.

• Other machine tools

The "010 LADT" is a fully automatic balancing machine designed specifically for small turbochargers for automobiles. It consists of an inbound/outbound section, an unbalance measurement section, and a milling correction section, with the workpieces being automatically transported to each station by a two-arm in-machine loader. Additionally, we also introduce the turbocharger-specific "010/020 MMBT" and the high-speed turbocharger core assembly "110 MMST." 【Structure】 ■ Inbound/Outbound ■ Marking Station ■ Measurement Station ■ Correction Station *For more details, please download the PDF or contact us.

• Other machine tools

The balancing machine is used to reduce the vibrations of rotating bodies and performs balance measurement and correction for all existing rotating bodies. By achieving balance, it offers benefits such as improved product performance and extended lifespan. Additionally, a precisely balanced rotor can achieve stress-free high-speed rotation, making it possible to reduce environmental impact. Vertical balancing machines are primarily suitable for disc-shaped rotors that do not have an axis and are more efficient to work with in a vertical position. They are designed with a focus on safety and efficiency, and can accommodate both operator work and inline automatic operation. They are provided according to customer specifications through a selection flowchart. 【Features】 ■ Balance measurement is possible with a variety of functions. ■ It is possible to verify the inner diameter tolerances on the drawing and select a fixing method that corresponds to the achievable unbalance amount. ■ Measurement results and setting data for each rotor can be extracted to a USB memory stick for verification on a computer. *Custom orders will be made according to your requested specifications, so please feel free to consult with us. *For more details, please download the catalog or feel free to contact us.

• Other machine elements

The balancing machine is used to reduce vibrations of rotating bodies and performs balance measurement and correction for all existing rotating bodies. By achieving balance, there are benefits such as improved product performance and increased longevity. Additionally, a precisely balanced rotor can achieve stress-free high-speed rotation, thereby reducing environmental impact. In the horizontal balancing machine, rotors are measured individually, with a hard type for large rotors (approximately 1kg and above) and a soft type for small, high-speed rotating or assembly rotors. You can select based on a flowchart tailored to your application. **Features of the Hard Type:** - Measurement is possible simply by inputting the dimensions of the rotor with permanent scale calibration. No adjustment work is required for each workpiece. - Flexible expansion is possible, covering a wide range of weights by combining two different types. **Features of the Soft Type:** - No special foundation is necessary. It can be installed on floors two levels or higher. - Measurements are conducted at speeds higher than the resonance frequency, allowing for a higher upper limit of rotational speed, and angle errors do not occur due to rotor-dependent calibration. *For more details, please download the catalog or feel free to contact us.*

• Other machine elements

At Nagahama Manufacturing Co., Ltd., we handle balancing machines tailored for various applications. We offer dedicated balancing machines for crankshafts (mass centering), as well as vertical and general-purpose balancing machines, and measurement units. We provide our customers with excellent technology and reliable quality products and services. Please feel free to contact us if you have any requests. *For more details, please download the PDF or contact us.

• Mechanical Design
• Other measurement, recording and measuring instruments