東和化学 List of Products and Services

We would like to introduce the main production equipment handled at our factory. Starting with our original "Vertical Injection Molding Machine 200ton," which enables automation of production, and the "Vacuum Compression Molding Machine 305ton," equipped with a vacuum device for compression molding, we also possess the "Open Roll 16-inch," a roll machine for molding our exclusive blended materials. In addition, we have many other machines, such as the "Horizontal Injection Molding Machine 180ton," which is connected to the system's server and automatically records the molding conditions for each shot. 【Equipment Owned (Excerpt)】 ■ Mixing Equipment ・Mixing Roll ■ Molding/Treatment Equipment ・Horizontal Injection Molding Machine ・Vertical Injection Molding Machine *For more details, please refer to the related links or feel free to contact us.

• Injection Molding Machine
• Vacuum forming machine
• Other processing machines

We would like to introduce the quality assurance of Towa Chemical Co., Ltd. Quality assurance based on the QC process chart. Activities include management inspections, monitoring of material mixing and molding conditions, and quality assurance based on data from the monitoring group management system and inspection results. In addition, we handle customer interactions such as customer quality manuals, standards, complaint responses, and other related matters. 【Quality Assurance Activities】 ■ Management inspections (initial and during specification changes) ■ Quality assurance based on the reliability of the process ■ Customer interactions ■ Quality information dissemination *For more details, please refer to the related links or feel free to contact us.

• Other services

We would like to introduce the prototype-related services of Towa Chemical Co., Ltd. The concepts related to prototyping are: "Delivering products that meet the required specifications," "Making issues, risks, and yields in prototyping visible," and "Expanding risk mitigation strategies from prototyping to mass production." From prototype orders (upon receipt of drawings) to prototype result reports (internal reports), we have prepared a prototyping process aimed at realizing our customers' development products. 【Concepts Related to Prototyping】 ■ Delivering products that meet the required specifications ■ Making issues, risks, and yields in prototyping visible ■ Expanding risk mitigation strategies from prototyping to mass production *For more details, please refer to the related links or feel free to contact us.

• Prototype Services

We would like to introduce our technology, "Mold Design." By establishing mold manufacturing that ensures molding stability directly linked to product quality, we are working on quality stabilization. We are also focusing on the development of rational stable operations and the potential for automation (we also design automation equipment). The cycle approach of building mold design FMEA, mold design, and quality analysis tools leads to better molds uniquely developed by molding manufacturers. 【Features】 ■ Quality stabilization ■ Workability ■ Further efficiency *For more details, please refer to the related links or feel free to contact us.

• Mold Design

We would like to introduce our technology, "Material Development." This includes the selection and development of material properties for specific applications, the assessment of lifespan related to those applications (validated through long-term testing), and the confirmation of degradation behavior through long-term tests. Our original technology takes these factors into account to meet our customers' needs. We conduct tests to confirm the expected lifespan of rubber products through running tests using actual machines or equivalent testing equipment. 【Features】 ■ Selection and development of material properties for specific applications ■ Assessment of lifespan related to those applications (validated through long-term testing) ■ Confirmation of degradation behavior through long-term tests ■ Reliability testing-related *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

We would like to introduce the "silicone rubber" that we handle. Due to its low temperature dependence, it exhibits stable vibration-damping performance even in a wide range of temperature environments. It maintains stable properties under high-temperature conditions, such as cooking utensils and engine parts, as well as in extreme cold, exceeding minus 50°C, without degradation. It is chemically stable, does not harm other substances, and does not get harmed itself, ensuring high safety with no adverse effects on humans or nature. 【Features】 ■ Stable elasticity ■ Heat, cold, and weather resistance ■ Safe and non-toxic ■ Flexible and rigid options ■ Electrical properties ■ Versatility *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Compact Ventilated Waterproof Packing" is a packing that has sealing functionality while achieving a ventilated waterproof body with fine pores. Traditionally, filter components were used for ventilation, but this product eliminates the need for them, reducing the number of parts and allowing for miniaturization. By replacing existing products, cost reductions can be achieved. Additionally, you can choose from fluorosilicone rubber, fluorine rubber, and other materials depending on the usage environment, which excel in oil and chemical resistance. 【Features】 ■ Patent product ■ Small components with ventilation, dustproof, and waterproof functions ■ Selection of ventilation volume (cc/min) according to requirements ■ The ventilated waterproof body itself is made of silicone rubber, maintaining a seal with the housing ■ Protected by a cap to prevent direct damage to the fine pores from the outside *For more details, please refer to the PDF document or feel free to contact us.

• Sealing
• Other machine elements

The "Duckbill Valve" is a check valve characterized by its ability to respond sensitively to low-pressure environments while maintaining pressure, featuring a structure with two valve parts. By optimizing the shape and material, it addresses vacuum leaks at low pressure. The valve parts are assigned roles of self-supporting and following sides, particularly establishing opening retention during low pressure. 【Features】 ■ Responds sensitively to low-pressure environments while maintaining pressure ■ Structure of two valve parts ■ Addresses vacuum leaks at low pressure through optimization of shape and material ■ Assigns roles of self-supporting and following sides to the valve parts ■ Establishes opening retention, especially at low pressure *For more details, please refer to the PDF document or feel free to contact us.

• valve
• Other pumps

Towa Chemical Co., Ltd. is a manufacturer specializing in silicone rubber molded products. We conduct material development and mold design, and by centrally managing molding using original machines through various management systems, we supply products that are more affordable and guaranteed in quality in a timely manner. Additionally, by aggregating and analyzing molding data for each shot, we can respond quickly to any abnormalities that may occur, ensuring excellent traceability. 【Business Overview】 ■ Silicone rubber molded products and sliced processed products *For more details, please download the PDF or feel free to contact us.

• Rubber mold
• Other Auto Parts