Assembly work of the low-pressure turbine, and shipment after internal movement within the factory.

We have experience in manufacturing gas turbine cylinder casings and assembling high-pressure turbines. For large fabricated products and large machined parts, please contact Mitsubishi Nagasaki Machinery!

Mitsubishi Nagasaki Machinery has a production system that can consistently handle welding, assembly, heat treatment, and machining for products ranging from small sizes to ultra-large products in the 500-ton class. From various cylinders for gas turbines made of high-tech alloy steel to various steel structures, we flexibly respond to the diversifying needs of users, and we will continue to make further efforts to contribute to both quality and reliability domestically and internationally.

• Contract manufacturing

We have numerous achievements for domestic and international heavy electrical manufacturers. Mitsubishi Nagasaki Machinery is skilled in large-scale fabrication and machining.

Gas turbine cylinders are used as components of thermal power generation systems, supporting turbines that rotate at high speeds and requiring high quality and performance to withstand severe conditions of high temperature and high pressure. Mitsubishi Nagasaki Machinery has established a production system that covers all processes from material procurement to painting, ensuring quality that meets customer trust.

• cylinder

We have a track record of manufacturing various types of carts and traverses. For large fabricated products and large machined parts, please leave it to Mitsubishi Nagasaki Machinery!

Mitsubishi Nagasaki Machinery is also engaged in the production of related equipment and various devices associated with the production facilities of steel manufacturers. We respond to customer needs by providing high-quality and efficient steelmaking equipment, and we can handle everything from design and manufacturing to on-site assembly and installation.

• Processing Contract

We can also manufacture large products weighing 500 tons. Equipped with high-performance facilities for each production process, we provide one-stop service from material procurement to shipping.

Our company specializes in "large-scale canning" and "large-scale machining," and we are engaged in contract manufacturing of various industrial machinery, steel structures, and related products. From our dedicated wharf at the Fukahori Factory (Nagasaki City), we can receive materials and ship large products by sea. We provide a comprehensive service from material procurement to canning, heat treatment, machining, painting, inspection, and sea shipment. We also excel in thick plate welding, with extensive experience in carbon steel SS400 in thicknesses ranging from 50 to 250mm. We can accommodate thicknesses over 250mm, so please feel free to consult us. 【Sizes for Various Processing】 Tanks: Up to 8,000mm in diameter or a total length of 10,000mm Large diameter products: Up to 18,000mm in diameter (with experience in blast furnace steel plates) Small diameter products: Up to 38,000mm in total length (with experience in spades) Shipping weight: Up to 500t ★ We are currently showcasing an introduction video of our facilities. Please take a look. You can also view examples of our deliveries through "PDF Download." Feel free to contact us with any inquiries.

• Contract manufacturing

Mitsubishi Nagasaki Machinery is specialized in the fabrication and machining of extremely thick and heavy materials! We also have a dedicated wharf, making maritime transportation possible.

〇Integrated Production Capability We can consistently manufacture large products from material procurement to canning, heat treatment, machining, painting, inspection, and shipping by sea. → This leads to a reduction in handling costs and a decrease in the effort required for process management. 〇Reliable Quality Our company has established a quality management system based on ISO 9001 for pressure vessels, steel structures, environmental plants, and industrial machinery.

• others

Are you having trouble with large-scale machining? Our company offers one of the largest turning capabilities in Western Japan, with a maximum processing capacity of 10 meters.

Maximum processing capacity of 10m! We have one of the largest large turning capabilities in Western Japan. *The maximum dimensions that can be processed vary depending on the shape and weight. 【Are you facing any of these issues?】 - There are few inquiries for large machined products. - The factory load has overflowed. - It is difficult to handle large machining. 【Mitsubishi Nagasaki Machine Works can do the following!】 - Integrated manufacturing including procurement, can manufacturing, machining, heat treatment, and marine transportation. → Reduces the hassle of process management. → Helps reduce horizontal transportation costs. We respond to all quality requirements with skilled machining technology.

• others

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without affecting the base material with heat. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!

On September 11, 2025, AC Tasarim, a cable blade manufacturer, and our company signed a sales agency agreement for Japan. This was also announced in the company's press release and on social media. Founded in Turkey in 2003, AC Tasarim manufactures flexible EMI cable shields (copper braid), polyester braid, meta-aramid braid (Nomex cable sleeves), flat copper braid busbars/ground braids, all AA59569-coded copper braids, and released AeroBraid in 2025, the world's lightest EMI braid. All manufactured copper braids are certified to military standards. AC Tasarim products hold key certifications including VDE/VG certification, German Federal Armed Forces certification, NATO NSN coding, AS9100 quality certification, and JOSCAR certification. Cable braids and EMI shielding products, essential for wire harnesses in the aerospace and defense industries, are becoming increasingly difficult to source as demand rises. TC Tasarim products are stocked by manufacturers and distributors to ensure quick response times.

Starting from September 22, 2025 (Monday), we will begin accepting orders for five new lineups tailored to various applications in the "N-SELECT" series of transport vehicles. In this new development, we will introduce the following five models that maintain the basic performance of the traditional N-SELECT while addressing more specialized needs: SC (Super Carrier) - Based on the traditional N-SELECT, this model is specialized for transporting immobile and accident vehicles. It is ideal for the automotive maintenance and towing industry. RC (Racing Carrier) - Designed with a gentle loading and unloading angle, this model is perfect for transporting sports cars and lowered vehicles. TP (Transporter) - A standard model optimized for the transportation of general passenger vehicles, suitable for a wide range of industries. ONE (Single Vehicle Loading Model) - A simple and efficient design dedicated to loading one vehicle. Recommended for small-scale transport and individual entrepreneurs. RS (Rescue) - A single vehicle loading model equipped with a crane, enhancing its capability to respond in accident scenes and tight spaces. With these lineups, N-SELECT evolves into a product group that meets a wider variety of on-site needs. We will continue to promote product development that reflects the voices from the field as the "preferred transport vehicle."