長浜製作所 List of Products and Services

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.

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.*

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.

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.

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.

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.

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.

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.

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.

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.

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.