Introduction of the technology that supports our products.

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- Because of the special pipe shape, I can't find a processing location... - I want a large rack to store heavy items, but... - I want to create a special cart, but the cost is... - I wonder if I can make a small original souvenir... - I need complex hole processing for metal parts, but... ↓↓↓ Consultations and estimates are free! Please feel free to contact us.

• Special Processing Machinery
• Other processing machines
• Processing Contract

Gas sensors using microheaters achieve safer and more efficient gas detection through high sensitivity, low power consumption, and compact design.

Our company is working on a new technology that utilizes microheaters based on semiconductor technology, moving away from the traditional platinum coils used in contact combustion gas sensors. Microheaters can achieve instantaneous temperature increases and high sensitivity detection due to their high reactivity, while also being energy-efficient due to low power consumption. Traditional gas sensors required a large power consumption and had to be configured for AC power supply. Gas sensors utilizing microheaters can operate for long periods on battery power.

• Sensors

The contact combustion-type gas sensor is a sensor that detects gas concentration by utilizing the heat generated during the combustion (oxidation reaction) of flammable gases.

Contact combustion-type sensors are widely used for the detection of combustible gases such as methane and propane. They are also commonly used as gas leak detectors in industrial and household settings, playing a crucial role in safety measures.

• Sensors

Our company has developed a system that enables simple and highly accurate measurement of the calorific value of biogas, and we are conducting demonstration experiments for it.

By focusing on the methane gas contained in biogas and measuring its concentration, we can indirectly determine the calorific value. For measuring methane gas concentration, we use an infrared gas sensor that utilizes the infrared absorption wavelength of gas molecules. This allows for rapid and highly accurate measurement of gas concentration even in high concentration areas. It is equipped with a compact and inexpensive pressure reduction and flow rate stabilization system, enabling the extraction of process gas and real-time data acquisition. An example of methane concentration measurement data can be downloaded from the catalog. *For more details, please feel free to contact us. *Please note that we cannot reply to g-mail addresses on our company system.

• Sensors

Utilizing the principle of "uchimizu," we create cold water from heat. We will explain that technology (mechanism) in an easy-to-understand manner.

In normal physical phenomena, it is considered difficult to directly create cold water from heat. Heat is a form of energy in an object, and since energy is conserved, it is necessary to convert the heat into another form of energy in order to cool it down. Because heat naturally flows from high temperature to low temperature, it is possible to cool an object by removing heat. For example, it becomes possible to create cold water by extracting heat from a heat source through water and transferring it to another object to lower its temperature.

• Heat exchanger
• Other air conditioning equipment

Specifically, I will explain the process of making cold water from heat.

First, a low-temperature, low-pressure gas-liquid mixed refrigerant (water and water vapor) enters the evaporator. Inside the evaporator, which is in a near-vacuum state, the boiling point of water at 100°C is reduced to 7-10°C, allowing the refrigerant (water) to boil and turn into water vapor by absorbing heat from relatively warm water in the chilled water piping. The water vapor is drawn into the absorber, similar to the suction side of a vapor compression refrigeration cycle compressor. The water vapor is absorbed by the absorbent "lithium bromide" and is pumped into the regenerator. In the regenerator, the mixture of refrigerant and absorbent is heated to separate it back into the original water vapor and absorbent, with the absorbent returning to the absorber and the water vapor being sent to the condenser. There are methods for adding heat in the regenerator, including combustion using fuels such as gas or oil, or using steam or hot water. The refrigerant, which has returned to water after losing heat in the condenser, is depressurized in the expansion device and flows back to the evaporator, repeating the cycle.

• Heat exchanger

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 even 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 an introduction to "outer diameter film polishing," which is used for ultra-finish machining of various shaft-type workpieces. - Wouldn't you like to achieve ultra-finish machining more easily, safely, and with less variation? Please take a look at what film polishing is, along with related products and catalogs!

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 without causing any thermal impact on the base material. Repairs can be made even 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.

We are pleased to announce that Tokyo Machine Works Co., Ltd. will be exhibiting at the "INNOVATION EXPO 2025" to be held at Tokyo Big Sight from September 10 (Wednesday) to September 12 (Friday), 2025. 【Exhibited Equipment】 - 1-ton portable autonomous mobile robot (AMR) - 2-ton portable unmanned transport vehicle (AGV) - Shutter-equipped unmanned transport vehicle - Autonomous cleaning robot, etc. 【Booth Number】 - 6-405 You will have the opportunity to see each machine up close, including demonstrations that link the equipment together. We sincerely look forward to your visit during this event. Please note that pre-registration (free of charge) is required to attend the exhibition, so we kindly ask you to register using the link below. https://www.logistech-online.com/jp/registration.php?exhibitor=EX000072 If you would like an invitation, please request it through our contact form.

Contec has added a BTO menu for the Windows 11-based embedded OS - Windows 11 IoT Enterprise LTSC 2024 to its industrial computer "MR4310 series" and has started accepting orders.