Mitsubishi Nagasaki Machinery Mfg. Co., Ltd.

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Welding and heat treatment facilitiesWelding and heat treatment facilities

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Welding and heat treatment facilities

We are equipped with a large annealing furnace that can accommodate various large products, various welding facilities, and a blast shop.
We also have automatic band arc welders that can handle shell plates and head plates, and have built a system that can meet a wide variety of welding requirements.

List of welding and heat treatment equipment

Equipment name Max. capacity/ dimensions/ quantity
Welding manipulator 7 units Horizontal stroke 4000-6000 Vertical stroke 4000
SAW welding stage for L-shape Max. dia. 5000mm
SAW welding stage for circle circumference Max. dia. 5000mm
Submerged arc welder 11 units
Band arc welder 4 units
Semi-automatic welder 118 units 350A(9 units)500A(100 units)600A(8 units)400A(1 unit)
TIG welder 55 units 300A(49 units)500A(4 units)200A(2 units)
Overlay welder for inner surface with small diameter Min. inner dia. 50mm×L 1500mm
Plasma gouging 1 units 150A
Large annealing furnace W 7000mm×L 10000mm×H 6000mm Temp. 800℃ Load weight 150ton
Medium-size annealing furnace W 3800mm×L 6500mm×H 3000mm Temp. 1100℃ Load weight 40ton
Small annealing furnace W 1800mm×L 10600mm×H 1000mm Temp. 1100℃ Load weight 20ton
Box electric furnace W 2000mm×L 3600mm×H 2100mm Temp. 750℃ Load weight 8ton
Small electric furnace Dia. 700mm×Depth 820mm Temp. 1100℃ Load weight 1ton
Quenching tank (water) W 5000mm×L 11000mm×Depth 3000mm
Quenching tank (oil) Dia. 2800mm Depth 4300mm
Large annealing furnace
Blast shop
Automatic band arc welding on head plates
Narrow groove welding
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