大下産業 Product Lineup

Daishita Sangyo Co., Ltd. is engaged in voluntary safety and environmental conservation activities from the procurement of raw materials to the manufacturing, use, and disposal of products. One of the initiatives being advanced in collaboration with major automobile manufacturers is the recycling of bumpers. Used bumpers brought in by dealers are cut, crushed, and then re-pelletized before being handed over to automobile manufacturers. Additionally, medical waste disposal containers have been developed to prevent needle-stick injuries for healthcare professionals. They allow for the easy disposal of used syringe needles without touching the needle part, by hooking them into the container's uneven grooves. The design also ensures that the lid locks during disposal to prevent contents from spilling out. *For more details, please refer to the external link page or feel free to contact us.*

• plastic
• Contract manufacturing
• Other contract services

Daishita Sangyo Co., Ltd. is also expanding into the field of stationery, which is widely used in offices and other settings. The production is carried out under a consistent production system that includes parts design, mold design, manufacturing, design of plastic components, and assembly using ultrasonic welders. Among these, the pen barrels showcase our technology and knowledge in a unique way. We have transformed the barrels of Kumano brushes, a specialty of Hiroshima, into plastic while preserving the traditional design, thereby responding to cost reduction through mass production. Furthermore, we are also involved in the field of educational materials, producing items such as recorder caps for major musical instrument manufacturers. *For more details, please refer to the external link page or feel free to contact us.

• plastic
• Contract manufacturing
• Other consumables

At Ooshita Sangyo Co., Ltd., we handle a variety of food containers, including trays, cups, and insulated containers. The cumulative production of spouts used in standing pouches for jelly products has exceeded an impressive 400 million units. What is unique is the container for oysters, a specialty of Hiroshima, where Ooshita Sangyo's headquarters is located. It takes advantage of the non-rusting property of plastic while enhancing delivery capabilities, receiving high praise. We have also designed dedicated grooves to prevent shifting when stacking with the uneven surfaces for stacking, allowing for the use of PP bands. Additionally, many products are active in the field of commercial food industry, including major bread manufacturers. *For more details, please refer to the external link page or feel free to contact us.

• plastic
• Contract manufacturing
• Other safety and hygiene products

The railway, which has continuously supported the development of modern society as a reliable and safe means of mass transportation. In this field, which is once again gaining attention with the rising environmental awareness, many plastic products with excellent strength and insulation properties are being utilized. To fulfill the absolute mission of ensuring safety, not only robustness but also superior quality in weather resistance is required, and our company meets these high demands no matter how challenging they may be. Our lineup includes a wide variety of structural materials and components for vehicle interiors, as well as parts for rails and wheels. They are widely adopted by various JR companies, including the Shinkansen, and private railway companies. *For more details, please refer to the external link page or feel free to contact us.

• plastic
• Contract manufacturing
• Interior parts

At Ooshita Sangyo Co., Ltd., the sports field can be considered a relatively new genre. Products such as park golf and ground golf balls were originally made by other companies, and what our client companies sought from us was further cost reduction. Surprisingly, the know-how cultivated in the completely unrelated stationery field proved to be useful. We applied the technology for making pen barrels and modified the design to enable production using a more suitable molding method. As a result, we achieved significant cost reductions. This can be seen as a good example of our strengths being demonstrated in diverse fields. Since then, we have continued our relentless research and improvements, such as adopting a 3D oval shape that enhances grip. *For more details, please refer to the external link page or feel free to contact us.*

• plastic
• Contract manufacturing
• Other contract services

Products from Ooshita Sangyo Co., Ltd. are also used in construction and civil engineering components that are embedded for long periods in the ground or within buildings. For example, the "BL Injector," which repairs concrete cracks, features a revolutionary automatic filling system that utilizes the elasticity of rubber, significantly reducing labor. It is now adopted in many sites. As traditional gas and water supply piping transitions to PE piping, we manufacture various plastic piping fittings and valves that excel in corrosion resistance and seismic performance. Just as plastic can be made thinner, forming it into thicker shapes requires advanced technology, and our company demonstrates comprehensive adaptability to such challenging demands. *For more details, please refer to the external link page or feel free to contact us.*

• plastic
• Contract manufacturing
• Pipe Fittings

The automobile is a culmination of various advanced technologies. As market competition intensifies, strict quality control and delivery management in parts manufacturing, as well as efforts to reduce costs to the limit, are essential to succeed in this big market. Oshita Sangyo Co., Ltd. meets this high hurdle with excellent quality and cost performance. One example is the plastic clips used for rubber stops around doors. Our commitment extends to ensuring a uniform touch feeling for workers when they install the clips in automobile factories, consistently responding to a massive monthly order of 15 million units. Our products, which eliminate all compromises, are adopted by all domestic automobile manufacturers, establishing a solid position based on our track record and reliability. *For more details, please refer to the external link page or feel free to contact us.

• plastic
• Contract manufacturing
• Other Auto Parts

Oshita Sangyo Co., Ltd. has successfully commercialized the concept of "disposable" in the field of medical device components. The high level of technical expertise is evidenced by the ability to meet the stringent quality control required for medical parts, clearing vast lots in the millions. For example, extremely challenging requirements in molding processes are met using cutting-edge technologies such as clean rooms and the know-how accumulated over many years in medical component manufacturing. The "taco tube," which prevents the inflow of air into the body during blood transfusions, has obtained a manufacturing patent. Additionally, products such as the "enteral nutrition bag," which integrates a soft package with a plastic cap, showcase the full potential of our company. *For more details, please refer to the external link page or feel free to contact us.*

• Injection Molding Machine
• plastic
• Contract manufacturing

Daishita Sangyo Co., Ltd. is a partner company of Fumakiller, which now provides valuable products, including insecticides, to over 70 countries worldwide. The introduction of advanced injection molding machines and the start of manufacturing Fumakiller products took place in 1958, during what can still be considered the dawn of plastics in Japan. Subsequently, the electric mosquito repellent "Vape," which was born in 1963, pursued safety, functionality, and design, and after its release, it quickly recorded explosive sales success. Many of the plastic components of Fumakiller products are produced by our company, and the extensive know-how we have cultivated is greatly utilized in the product development of other companies. *For more details, please refer to the external link page or feel free to contact us.

• Injection Molding Machine
• plastic
• Contract manufacturing

Our company manufactures automotive parts such as plastic clips for rubber stops around doors, consistently meeting a massive monthly order of 15 million units. We are very particular about our products, extending our attention to detail to the uniform touch feeling when workers at automotive factories install the clips. Our products, which are free from any compromises, are adopted by all domestic automobile manufacturers, establishing a solid position based on our track record and reliability. 【Production System】 ■ A diverse production system that balances quality and cost ■ Ownership of a mold factory, achieving a consistent production system ■ Asian base, Indonesia factory *For more details, please feel free to contact us.

• Injection Molding Machine
• plastic
• Contract manufacturing