沖山製作所 List of Products and Services

At Okuyama Manufacturing, we design, manufacture, and sell "Mobile Coolers" that utilize well water. *Images of the actual product are available. 【Features of the Mobile Cooler】 ● The mobile cooler is a floor-standing type and is portable. ● It supplies cool air equivalent to 25 kW using well water at 15°C for extremely hot work environments. ● When using well water, the electricity cost is 1/8 to 1/10 compared to air conditioning (including the electricity cost of the water pump). Additionally, if factory chilled water can be utilized, it can achieve a cooling capacity of up to 50 kW (varies with chilled water temperature). ● We deliver peace of mind and reliability with a fully domestic product developed in collaboration with a Japanese heat exchanger manufacturer. ● The main body of the mobile cooler is made entirely of stainless steel 304 (excluding the blower and heat exchanger). (Fans can be made of SUS304 upon special order, and the body can also be changed to SUS316L.) ● The fin-and-plate type high-performance heat exchanger comes standard with a fluorine coating on the inside. ● The airflow can be varied with an inverter, reaching a maximum of 11,000 N㎥/H (at 60Hz). ● The design takes into account fan noise, which was a major issue (60Hz, 60dB at 1m from the unit). ● For installation locations with poor water quality, an indirect heat exchanger can be installed as an option. *For more details, please refer to the PDF document or feel free to contact us.

• air conditioning
• Heat exchanger
• Other air conditioning equipment

The "Precision Arc 4.8 CE" is a thermal spraying system with a proven track record in various fields such as oil, gas, wind power generation, water tanks, water pipes, highways, railway bridges, and military applications, and is used worldwide. It supports twin wires of 1.6mm, 2.0mm, 2.38mm, 3.17mm, and 4.7mm. With the Arc Shorting Control Technology, this state-of-the-art high-capacity thermal spraying device enables significant reductions in construction time, labor costs, and material costs. The patented "Arc Voltage Drive" automatically controls motor speed, maintaining a complete arc gap. 【Features】 ■ Smooth thermal spraying can start at any time ■ Chip adhesion prevention system (patented) ■ Maintains a complete arc gap ■ State-of-the-art high-capacity thermal spraying device with Arc Shorting Control Technology ■ Supports twin wires of 1.6mm, 2.0mm, 2.38mm, 3.17mm, and 4.7mm *For more details, please refer to the PDF materials or feel free to contact us.

• Other work tools

We offer a system called 'Plate Heat Exchanger for Recuperators' that can handle exhaust heat from room temperature up to 600°C. It can recover heat with an efficiency of up to 80%, and due to its thick design, it can accommodate corrosion-resistant designs. As a result of its implementation in the powder coating line of our client company, significant energy-saving effects and improvements in odor and smoke control have been observed. 【Features】 ■ Aluminum construction: Suitable for exhaust heat from room temperature to a maximum of 300°C ■ Stainless steel construction: Suitable for exhaust heat up to a maximum of 600°C ■ Heat recovery efficiency of up to 80% ■ Thick design compatible, allowing for corrosion-resistant designs ■ Enlarged fin pitch size to accommodate dirty environments ■ Selection of fin pitch is also possible *For more details, please download the PDF or feel free to contact us.

• Heat exchanger

Due to the impact of the novel coronavirus, indoor ventilation has become essential. Currently, with the air conditioning systems in buildings, when windows and doors are opened for ventilation, there is a lack of heating and cooling capacity. Sufficient ventilation cannot be achieved with just windows and doors. An ideal ventilation system using a heat exchanger can be designed with consideration for the air conditioning load. According to the Building Management Act, mechanical ventilation is set at 30 m³/h per person. There are guidelines from the Ministry of Health, Labour and Welfare for determining ventilation airflow. For example, consider a waiting room in a hospital where 70 people, including staff and patients, are gathered. Since the ventilation amount per person is 30 m³/h, we can calculate the ventilation airflow. 30 m³/h × 70 people = 2100 m³/h, which is equivalent to 35 m³/min of ventilation airflow. Additionally, we are proposing modifications to address the boiler issues for the years 2030 and 2050 by using chillers for dehumidification, cooling, and heating (humidification) systems with heat exchangers. We are also open to consultations regarding air conditioning systems using large airflow air handling units.

• Ventilation and Exhaust
• Heat exchanger
• Chiller

The "M4 Gun" is a thermal spraying system from the U.S. company Unique Coatings. "HVAF" stands for High Velocity Air Fuel, which uses a flame created by burning high-pressure compressed air and fuel gas for thermal spraying. The spraying speed is Mach 3. "HVAF + O2 (oxygen)" allows for thermal spraying using a flame generated by mixing approximately 10% O2 (oxygen) with HVAF. With just one gun, you can achieve your desired thermal spraying by simply changing the nozzle. 【Features】 <HVAF> ■ High Velocity Air Fuel thermal spraying ■ Thermal spraying using a flame created by burning high-pressure compressed air and fuel gas ■ Spraying speed is Mach 3 <HVAF + O2 (oxygen)> ■ By mixing about 10% O2 (oxygen) with HVAF, the combustion temperature can be increased. ■ Compared to HVOF systems, it can reduce initial and running costs. *For more details, please refer to the PDF document or feel free to contact us.

• Other work tools

The "Unique Coat Control System" manufactured by the United States is a state-of-the-art modern process control system that can be easily operated with a PC-like interface. The guns compatible with this system include M3, M4, i5, and i7. (The i series refers to inner diameter guns.) Designed in accordance with the safety standards of ATEX, the gas and air-purged electrical components of the control console are separated. It is an Intelligent system that can be linked with all equipment related to thermal spraying, allowing for monitoring and logging of all thermal spray coating histories, including thermal spray particle temperature measurement. 【Features】 ■ User-friendly touch screen interface ■ Quick startup and start control ■ Complete automatic stop process monitoring ■ Retrieval of all thermal spray data ■ Extensive thermal spray recipe storage *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements

This product is a device that supplies powdered materials into a combustion frame nearly three times the speed of sound, enabling high-speed continuous thermal spraying. The hardness of the applied surface is very high at 1600 Vickers based on WC, and a coating is generated with almost no oxides. Similarly, for metal and cermet materials, a coating is produced with almost no oxides. 【Features】 ■ Supplies powdered materials into a combustion frame nearly three times the speed of sound ■ Enables high-speed continuous thermal spraying ■ Applicable to turbine parts of aircraft jet engines ■ Generates a coating with almost no oxides ■ Surface roughness is finished smoothly at 1.5 to 1.6 μm *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment

More than 90% of the drying ovens manufactured by our company are indirect heating type drying ovens. The temperature variation inside the oven is extremely low, and the size and heating method of the drying oven can be designed according to the customer's requirements. Additionally, we offer a high-speed hybrid drying system using other drying methods. "For customers who find that conventional hot air circulation drying leads to longer drying ovens, taking up too much space," we solve this problem with a hybrid drying system that uses a combination of carbon heaters and hot air generation devices. Our company can accommodate both direct combustion heating and indirect combustion heating methods. 【Features】 - Exhaust gases are returned to the oven after being heated with fresh intake air through a high-efficiency heat exchanger, designed for energy savings. - Internal temperatures are stable from 60°C to 200°C. - There are no concerns about deformation of plastic coatings. - The circulation air volume, exhaust air volume, and intake air volume inside the drying oven can each be set arbitrarily. - With the logger function, it is possible to check the history of past internal oven temperatures. *For more details, please refer to the PDF materials or feel free to contact us.

• Drying Equipment

Our company offers a system, the "Plate Heat Exchanger for Recuperators," that can handle exhaust heat from room temperature up to 600°C. It can recover heat with an efficiency of up to 80%, and due to its thick design, it can accommodate corrosion-resistant designs. As a result of its implementation in the powder coating line of our client company, significant energy-saving effects and improvements in odor and smoke control have been observed. 【Features】 ■ Aluminum: Suitable for exhaust heat from room temperature to a maximum of 300°C ■ Stainless steel: Suitable for exhaust heat up to a maximum of 600°C ■ Heat recovery efficiency of up to 80% ■ Thick design compatible, allowing for corrosion-resistant design ■ Enlarged fin pitch size to accommodate dirty environments ■ Selection of fin pitch is also possible *For more details, please download the PDF or feel free to contact us.

• Heat exchanger