正和産業 List of Products and Services

While there are calls for a shortage of rubber raw materials, fluororubber (FKM) and silicone rubber (Si) are gradually becoming available, and we are also supplying a significant amount of EPDM and other materials that are being viewed as problematic in terms of supply. 【Delivery Achievements: Products for Electronics and Semiconductors】 - Heat-resistant and chemical-resistant O-rings (FFKM) - Seals for semiconductor manufacturing equipment/analysis testing equipment - Seals for mass flow controllers (FKM/NBR/EPDM/CR) - Seals for vacuum plasma equipment (NBR) If you are having trouble procuring O-rings or various sealing gaskets, please feel free to contact us, as we can manufacture them through a dual production system!

• Rubber
• Rubber mold

Seiko Sangyo specializes in machining using NC lathes. We can perform cutting from various resin materials such as PTFE resin, polyacetal resin, and polyamide resin. Additionally, with the introduction of the SMART100S, we are now able to process resin products with a maximum diameter of approximately 100mm. Please feel free to contact us when you need our services. 【Installed Equipment】 ■ Manufacturer: Yamazaki Mazak Corporation ■ Model: QT6T Series, SMART100S ■ Number of Units: 5 ■ Features: Capable of automatic operation with parts catcher and air bar feeder *For more details, please refer to the PDF document or feel free to contact us.

• Sealing
• Contract manufacturing
• Processing Contract

We would like to introduce the delivery achievements of Seals products from Seiko Sangyo Co., Ltd. We have supplied various products for automobiles and construction machinery, including X-rings (FKM) for viscous couplings and seals (FKM) for starters. We manufacture large quantities of automotive products at Holon Seiko Co., Ltd., which can operate 24 hours a day, starting from small lot products. In addition, we have numerous delivery achievements for industrial, electronic/semiconductor, and medical/food equipment products. 【Delivery Achievements (Partial)】 <Products for Automobiles/Construction Machinery> ■ X-rings (FKM) for viscous couplings ■ Seals (H-NBR) for car air conditioning compressors ■ Seals (FKM) for brake valves ■ Seals (FKM) for starters ■ Seals (EPDM) for radiators *For more details, please refer to the PDF document or feel free to contact us.

• Sealing
• Contract manufacturing
• Processing Contract

Seiko Sangyo Co., Ltd. manufactures synthetic rubber/resin seal (packing) products and sells mass-produced items ranging from one prototype to tens of thousands of units to a wide range of customers nationwide. If you send us your drawings, we will confirm whether production is possible, and if it is, we will provide you with a quote. 【Features】 ■ Reduces molding defects and material loss ■ High quality and high performance ■ Contributes to cost rationalization *For more details, please refer to the PDF document or feel free to contact us.

• Rubber
• Rubber mold
• Prototype Services

Seiwa Sangyo Co., Ltd. is a company located in Arida City, Wakayama Prefecture, that manufactures synthetic rubber, resin, and metal seal packing. Our synthetic rubber seal products range from standard items that meet JIS standards to custom-designed special specifications for customers. We specialize in complex shapes and products with strict dimensional accuracy, as well as special high-performance products that are composites with metals. For seal packing inquiries, please consult Seiwa Sangyo Co., Ltd. 【Features】 ■ Reduces molding defects and material loss ■ High quality and high performance ■ Contributes to cost rationalization *For more details, please refer to the PDF materials or feel free to contact us.

• Sealing
• Other packaging machines

**Business** Seiwa Sangyo Co., Ltd. manufactures synthetic rubber/resin seal (packing) products and sells mass-produced items ranging from single prototypes to tens of thousands of units to a wide range of customers nationwide. **Machining Capabilities** We can handle materials from the five major engineering plastics to super engineering plastics such as PEEK and PTFE. If you send us your drawings, we will check the feasibility of production and provide a quote if production is possible. Please feel free to contact us.

• Rubber
• Resin processing machine
• Rubber Processing Machine

Our company specializes in the manufacturing of vulcanized adhesive products made from rubber + resin components and rubber + metal components. We can accommodate rubber materials that are commonly used for seals, such as NBR, FKM, EPDM, VMQ, and H-NBR. For resin components, we can work with heat-resistant resins that can withstand the vulcanization temperature of rubber (approximately 175°C), and we can accommodate almost all types of metals.

• Rubber

【Overview】 By utilizing liquid nitrogen for "freezing burr removal," we can minimize the burrs that occur on the mold parting line to the utmost limit. If you are currently troubled by burrs in your products, please do not hesitate to contact us. 【Features】 By minimizing burrs on sealing surfaces and sliding parts to the utmost limit, it is possible to enhance sealing performance and sliding properties. Additionally, it can prevent the generation of foreign substances due to burrs within units where seals are incorporated.

• Rubber

[Overview] Since our establishment in 1976, we have been manufacturing synthetic rubber sealing components for 45 years. We specialize in functional parts for automotive components, hydraulic equipment, and pneumatic equipment, and we continue to operate as a manufacturer. We believe that we can leverage the experience we have gained to be of service to everyone.

• Rubber

【Overview】 We offer prototyping using resin molds (created by pouring silicone/urethane) and aluminum molds (approximately half the cost of typical prototype molds), which can significantly reduce mold costs during spot prototyping that strongly emphasizes shape confirmation! If you are struggling with prototyping on a limited budget, please do not hesitate to contact us. 【Features】 We can achieve prototyping with a lower budget and shorter lead time compared to standard metal molds.

• Rubber

Our company manufactures "synthetic rubber/resin seal products" in Wakayama Prefecture and sells mass-produced items ranging from single prototypes to tens of thousands of units to a wide range of customers nationwide. Thanks to your support, we have received high evaluations not only for our quality but also for our pricing and delivery times, and we believe we have products that can definitely be of help to your company, which is why we are reaching out. If you have any concerns regarding seal products, please feel free to contact us. We are available for consultations via phone or email, and if you have specific requests, we can arrange a visit. Additionally, if you can provide product information in the form of drawings or sketches, we would be happy to provide you with a quote. We aim to create significant value for our customers through our seal products. We look forward to the opportunity to work with you. [Features] Seiwa Sangyo Co., Ltd. manufactures a wide range of products, from JIS standard O-rings to custom-designed special specifications. We excel in producing products that require complex shapes and strict dimensional accuracy, as well as composite products made of rubber and metal, and products specialized for heat and chemical resistance. We are committed to creating significant value for our customers through our seal products.

• others

Seiwa Sangyo Co., Ltd. is a company located in Arida City, Wakayama Prefecture, that manufactures synthetic rubber, resin, and metal seal packing. Our synthetic rubber seal products range from standard items that meet JIS standards to custom-designed special specifications for customers. We specialize in complex shapes and products with strict dimensional accuracy, as well as special high-performance products that combine with metals. For any inquiries regarding seal packing, please consult Seiwa Sangyo Co., Ltd. 【Features】 ■ Reduces molding defects and material loss ■ High quality and high performance ■ Contributes to cost rationalization For more details, please feel free to contact us.

• Sealing