Business description

We carry out large-scale can manufacturing such as bridges, floating piers in ports, steel-framed buildings, and machine assembly, from design and manufacture to maintenance after delivery.
In addition, taking advantage of the location facing the sea, it is possible to ship large structures directly from the factory using a marine overhang crane. (Koe Factory, Nagasaki City)
- Bridges and large welded steel structures, large canned products, large machined products
- Marine structures, large steel structures, building steel frames, wind power generation equipment, power generation plant structures
- Various can manufacturing products for thermal power plants, pipe products, machine assembly
- Large can manufacturing machining, various stainless steel products

Strengths = Technology + One-stop service

Based on the history and technical capabilities of more than 70 years since the establishment, we also manufacture products with a high degree of difficulty, such as bridges that emphasize design such as Dejima Omotemon Bridge.
In addition, we can use CAD to create materials such as design drawings, materials and parts lists, which are called full-scale work, and provide one-stop service (integrated production) from manufacturing, machining, and painting.
Introducing one of the largest 5-sided processing machines in western Japan, it has become possible to process large items with high precision.

Quality management

We perform various inspections such as dimensional measurement and non-destructive testing to confirm that the quality requirements of our customers are met. We also strive to learn new inspection methods every day.
At the same time, we are also engaged in operations related to the operation of the quality management system ISO9001.

50t offshore overhang crane + 1,000t carrier

Using an overhang crane overhanging the sea, it also supports marine transportation of large cans.
(Koe Factory, Nagasaki City)

Bridge

Sheet truss

Sheet truss

Pedestrian bridge (footbridge)

Dejima Omotemon Bridge (Nagasaki City, Nagasaki Prefecture)

Dejima Omotemon Bridge (Nagasaki City, Nagasaki Prefecture)

Kawachi Bridge (Tsushima City, Nagasaki Prefecture)

Yamadori Bridge (Nagasaki Prefectural Forest)

Marine structure

Floating pier (Tsukinokawa Port)

Hybrid caisson steel shell

Observation buoy off Goto

Suction anchor

Building iron bones, steel structures

gym

Stadium lighting tower

Observatory

Boiler steel frame

Various can manufacturing (corresponding to large can manufacturing products)

Tanks, containers

Various ducts

BUF entrance cabin

BUF entrance cabin

Various machine assembly (compatible with large machines)

Nacelle assembly

Nacelle rotor head assembly

Assembly of the interior of the LP turbine

Marine turbine cabin assembly

Fin stabilizer assembly

Horse mackerel pot jack-up stand production assembly

Various stainless steel products

Stainless steel lining

Chamber

Stainless steel rectified plate

Stainless steel rectified plate

Major equipment

50t / 20t overhead crane (IoT operation) 1 unit
W60 (30/30) t Overhead crane (IoT operation) 1 unit
15t overhead crane 2 units
10t overhead crane 2 units

Maritime overhang crane
1,000t carrier
(Koe Port, Nagasaki City)

Blasting device 13x8x4m
2 ultrasonic flaw detectors