竹森工業 List of Products and Services

We have obtained manufacturing permission for first-class pressure vessels, allowing us to accommodate various types of pressure vessels. At the Shirai factory, we currently hold 35 types of manufacturing permissions. New manufacturing permissions can also be obtained. The base materials include carbon steel, stainless steel, duplex stainless steel, clad steel, titanium-clad steel, pure nickel lining, and others. The thickness range is from 1.5mm to 64mm. We manufacture jacketed tanks, reactors, reaction cans, reaction kettles, stirring tanks, and more. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

Our company has obtained manufacturing permission for Class 1 pressure vessels, allowing us to accommodate various types of pressure vessels. 【Do you have any of these concerns?】 ■ You have drawings but can't find a reliable manufacturing company. ■ You can't find a company that can respond in rural areas. We accurately manufacture Class 1 pressure vessels based on your drawings, providing a comprehensive service that includes welding, non-destructive testing, and painting. We also have a track record of deliveries nationwide, including the Tohoku region. *For detailed information, please download our catalog. You can also view simplified information from the related links.

• Contract manufacturing

We have obtained manufacturing permission for first-class pressure vessels, allowing us to accommodate various types of pressure vessels. At the Shirai factory, we currently hold 35 types of manufacturing permissions. The base materials include carbon steel, stainless steel, titanium-clad steel, and pure nickel lining. The thickness range is from 1.5mm to 64mm. We manufacture jacketed tanks, reactors, reaction cans, reaction kettles, stirring tanks, and more. Please feel free to contact us when you need our services. 【Production Achievements】 ■ Vertical cylindrical granulation tank: 3,550φ × 16,750H ■ Reaction kettle: 2,600φ/2,750φ × 3,530H ■ Titanium-clad tank: 2,600φ/2,724φ × 4,100H ■ Drum: 1,400φ × 3,700H ■ Reaction tank: 2,400φ × 2,600H *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

We specialize in the production of tanks (single pressure and double pressure). We manufacture products tailored to our customers' requests. Air receiver tanks, surge tanks, mixing tanks, air tanks, adsorption towers, and more. Please feel free to contact us when you need our services. 【Production Achievements】 ■80㎥ Mixing Tank (Gas Business Act) ・3,000φ×10,900H・Skirt section 1,600H×6t ■25m3 Surge Tank ・2,100φ×6,600H・Skirt section 1,400H×9t ■Cylindrical Gas Holder ・3,000φ×9,500H×16t15t ■Nitrogen Holder Tank ・1,900φ×3,900H ■Air Tank ・750φ×3,050H *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

We manufacture specific equipment based on the High-Pressure Gas Safety Act. We can accommodate various items such as tower tanks, reactors, heat exchangers, vaporizers, and evaporators. Please feel free to contact us when you need our services. 【Delivery Records】 ■ Propylene transfer tank (high-strength steel specific equipment): 2,500φ×5,500H ■ 150KL LNG storage tank: 3,400φ×(15,400＋2,000)H ■ Refining tower: 1,500φ×2,050φ×(15,450＋4,000)H ■ 5㎥ surge tank: 1,800φ×3,500H *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

This is a container (silo) for storing collected PET bottles in chip form. It can be manufactured according to specifications. Please contact us if you are considering new factory equipment or updates to existing ones. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• silo
• Contract manufacturing

For inquiries regarding the new installation of factory equipment or updates to existing systems, please contact us. We can also manufacture in two or three segments. *We do not perform the design of the foundation or the basic design of the silo itself. We create the manufacturing drawings in-house. These are relatively large containers, mostly cylindrical in shape and tall, which allows for a large storage capacity per installation area. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• silo
• Contract manufacturing

■650㎥ Raw Water Tank This is a tank installed at a wood biomass power plant. The size can accommodate up to a maximum of 10,000KL. We welcome inquiries from the budget planning stage before bidding, so please feel free to contact us when needed. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

Since our establishment in 1966, we have been manufacturing and installing various types of tanks. We have a range of roof shapes, including self-supporting types with only roof plates, roof truss types, and column types, all with various manufacturing achievements. We are available for consultations from the budget planning stage before bidding, so please feel free to contact us when needed. 【Examples of Manufacturing Achievements】 ■ Cone roof tank for chemical manufacturers (Fire Service Act) 3,400φ×6,100H ■ Cone roof tank for chemical manufacturers (Fire Service Act) 3,300φ×3,900H ■ Cone roof tank for chemical manufacturers (Fire Service Act) 3,800φ×4,500H We can accommodate tanks ranging from 1KL to 10,000KL. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

The project is carried out with a two-part system consisting of a factory production team and a site construction team, and we respond to sites across the country, including remote islands. 【Main Achievements】 ■ Sewage Treatment Plant: Steel Plate Digestion Tank ■ Water Purification Plant: Steel Plate Water Distribution Tower, Combustion Furnace, Exhaust Duct ■ Oil Company: Heavy Oil Tank, Sulfur Tank, Gas Holder, Condenser ■ Gas Company: Cone Roof Tank, LPG Storage Tank, Liquefied Tank ■ Self-Defense Forces: Above-ground Tank, Covered Tank, Underground Tank, Piping ■ Chemical Plant: Water-type Gas Holder, Solvent Tank, Desulfurization Tower, Pyrolysis Furnace, Chimney ■ Steelworks: Fuel Tank, Elevated Tank ■ Food Factory: Silo, Storage Tank, Water-type Gas Holder ■ Data Center: Cooling Water Tank We accept consultations from the budget planning stage before bidding, so please feel free to contact us when needed. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• tank
• Fermentation tank
• Contract manufacturing

You can utilize it for the effective use of renewable energy. 【Examples】 ■ 3,000㎥ methane fermentation tank (biogas supply project) ■ 4,000㎥ methane fermentation tank (industrial waste final disposal site) In addition to methane fermentation tanks, we also have numerous delivery records for biogas-related products such as: ■ Low-pressure gas tanks ■ Solvent tanks ■ Intake tanks ■ Synthetic methane KO drums ■ Pressure vessels We accept consultations from the budget planning stage before bidding, so please feel free to contact us when needed. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• tank
• Fermentation tank
• Contract manufacturing

Compared to conventional concrete, it is possible to reduce initial investment costs and installation construction periods. There are 20 delivery locations, and the number of units produced amounts to 25, demonstrating a significant track record. We welcome consultations from the budgeting stage before bidding, so please feel free to contact us when you need our services. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• tank
• Fermentation tank
• Contract manufacturing

We are a tank manufacturer. We produce various tanks tailored to our customers' specifications. These include food tanks, chemical tanks, N2 tanks, air tanks, partition tanks, tanks with agitators, square tanks, underground tanks, and more. With our extensive track record, experience, and know-how, we can manufacture products that meet our customers' needs. Our construction achievements range from 1KL to 10,000KL. Factory production capacity: Maximum diameter 3,500mm, total length 20m, plate thickness 38mm. Please feel free to contact us when you need our services. 【Production Achievements】 ■ Coagulation tank: 2,700φ×4,870L ■ Square tank: 6,500L×1,868W×1,859H ■ Slop tank: 3,000φ×6,500H ■ Flash tank: 600φ×1,400H ■ 1,000㎥ drainage tank: 13,560φ×9,900H *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing
• tank
• Other Tanks

Since 1968, our company has been manufacturing and installing "water-sealed gas holders." ◆ Experienced & Proven Track Record ◆ As a facility for storing low-pressure gas, it uses water to seal the gas, allowing for a simple and safe storage solution. Our construction achievements range from 1㎥ to 10,000㎥. Please feel free to contact us when you need our services. 【Examples of Construction】 ■ 3,000㎥ Multi-chamber Water-sealed Gas Holder - Water Tank: 19,200φ × 6,900H - Gas Tank: 18,500φ × 17,800H ■ 800㎥ Water-sealed Gas Holder - Water Tank: 13,550φ × 6,750H - Gas Tank: 12,950φ × 6,500H ■ 200㎥ Water-sealed Gas Holder - Water Tank: 7,600φ × 6,050H - Gas Tank: 7,000φ × 5,650H *For more detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

Our company manufactures and installs "dry gas holders." We mainly accept inquiries for production from engineering companies. *Please note that we do not provide design services. Our construction achievements range from 200㎥ to 200,000㎥. 【Construction Achievements】 ■ 4,000㎥ dry gas holder for a terminal treatment facility: 19,300φ × 18,840H ■ 4,200㎥ dry gas holder for a purification center: 17,444φ × 23,660H ■ 2,500㎥ dry gas holder for a sewage treatment plant: 17,440φ × 17,240H *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing

We manufacture various custom-made products besides heat exchangers. We have numerous product achievements, including filters, siphon pipes, ducts, activated carbon adsorption towers, mixing tanks, wastewater treatment tanks, sludge storage tanks, deodorizers, sludge melting furnaces, fermentation tanks, chimneys, ozone treatment devices, and air intake and exhaust equipment. Please feel free to contact us when you need our services. 【Production Achievements】 ■ Activated Carbon Adsorption Tower: 1,500φ×1,150H ■ Heat Exchanger: 4,000w×958L×1,190t ■ Ozone Treatment Device: 750φ×3,500H ■ Pressure Filter: 3,000φ×1,500H×9t ■ Duct Burner: 4,820H×3,700w×1,250L *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing
• Water treatment equipment
• Piping and Piping Parts

We offer custom-made can products. We have a track record of products including water treatment equipment, filters, siphon pipes, ducts, activated carbon adsorption towers, mixing tanks, wastewater treatment tanks, sludge storage tanks, deodorizers, sludge melting furnaces, fermentation tanks, chimneys, ozone treatment devices, and air supply and exhaust equipment. Please feel free to contact us when you need our services. 【Production Achievements】 ■ Activated Carbon Adsorption Tower: 1,500φ×1,150H ■ Heat Exchanger: 4,000w×958L×1,190t ■ Ozone Treatment Device: 750φ×3,500H ■ Pressure Filter: 3,000φ×1,500H×9t ■ Duct Burner: 4,820H×3,700w×1,250L *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract manufacturing
• Water treatment equipment
• Piping and Piping Parts

We conduct "open inspections of spherical gas holders" at our company. During the open inspection, we safely replace the gas with air and remove the paint. Then, we perform magnetic particle testing and ultrasonic testing on the welds and fixture marks. If any defects are found, we address them through repairs. At the same time, we also carry out maintenance on valves, safety valves, and instruments, as well as repairs to handrails and stairs, finishing with painting. 【Maintenance Process (Partial)】 1. Nitrogen purging 2. Removal of internal tank weld seams 3. Internal MT inspection (magnetic particle testing) 4. Grinder repairs for internal defects 5. External MT inspection (magnetic particle testing) 6. Support PT inspection (penetrant testing) 7. Painting *For detailed information, please download the catalog. You can also view simplified information from the related links.

• Contract Inspection

Our company conducts "seismic reinforcement work" for spherical gas holders and spherical tanks. After the Great East Japan Earthquake, seismic standards were revised. The reinforcement standards for spherical tank braces on existing tanks have also been updated. For tanks subject to the High-Pressure Gas Safety Act, if the seismic resistance is found to be insufficient, renovations must be made to comply with the standards. Please feel free to contact us when you need our services. 【Maintenance Examples】 ■ Brace Replacement (Steel Pipe Type) ■ Brace Replacement (Tie Rod Type) ■ Support Column Replacement (Steel Pipe) *For detailed information, please download the catalog. You can also view simplified information from the related links.

• others

Our company conducts "water-type gas holder repair work" as part of maintenance. Regular inspections and repair work are essential for the safe operation of water-type gas holders. In particular, the gas tank section tends to deteriorate quickly due to being submerged in water and repeatedly exposed to the outside air. Our company has extensive experience in repair work for water-type gas holders, including parts replacement, bottom plate renewal, gas tank renewal, and dismantling and removal. 【Maintenance Examples】 ■ Gas tank renewal work ■ Inner tank replacement work ■ Modification work ■ Bottom plate replacement work ■ Outer tank replacement work *For detailed information, please download the catalog. You can also view simplified information from the related links.

• others

We also carry out repair work on tanks and similar structures. In addition to new construction of outdoor storage tanks, indoor storage tanks, and underground storage tanks, we have numerous achievements in the repair work of existing tanks. Furthermore, we provide a comprehensive service from confirming the current condition, proposing the repair scope and methods, to the actual construction, so please feel free to contact us with confidence. 【Construction Achievements】 ■ Floating roof seal renovation work ■ Pontoon repair work ■ Bottom plate replacement work ■ Sludge incineration facility renewal work ■ Incinerator repair work ■ Dismantling work of existing tanks *For detailed information, please download the catalog. You can also view simplified information from the related links.

• others
• tank
• Other mixing machines and tanks

Our company has a field construction team that carries out various repair, modification, and renovation works. We can travel anywhere in Japan. In addition to new construction works for outdoor storage tanks, indoor storage tanks, and underground storage tanks, we also have numerous achievements in the repair works of existing tanks. Furthermore, we provide a comprehensive service that includes confirming the current situation, proposing the scope and methods of repair, and carrying out the construction, so please feel free to contact us with confidence. 【Construction Achievements】 ■ Floating roof seal renovation work ■ Pontoon repair work ■ Bottom plate replacement work ■ Sludge incineration facility renewal work ■ Incinerator repair work ■ Dismantling work of existing tanks, etc. *For detailed information, please download the catalog. You can also view simplified information from the related links.

• others
• tank
• Other mixing machines and tanks

当社では、メンテナンスとして「各種タンク補修工事」を行っております。 屋外貯蔵タンク、屋内貯蔵タンク、地下貯蔵タンクなどの新設工事はもちろん、 既設タンクの補修工事においても多数の実績があります。 また、現状の確認、補修範囲及び補修方法のご提案、そして、施工まで 一貫して承りますので、安心してお問合せください。 【工事実績】 ■浮屋根シール改修工事 ■ポンツーン補修工事 ■底板取替工事 ■汚泥焼却設備更新工事 ■焼却炉補修工事 ■既設タンク解体工事 ※詳しくはカタログをダウンロードいただくか、お気軽にお問い合わせください。

• others
• tank
• Other mixing machines and tanks