トウチュウ Product Lineup

Since we can manufacture consistently from raw materials to finished products, we minimize contamination through thorough quality control. Additionally, we can adjust to your desired particle size distribution and accommodate various surface treatments.

• Fine Ceramics

It is a functional filler with properties intermediate between fibers and powders. It can be processed into the desired fiber length through grinding within the range of 30 to 100 μm, as well as surface treatment.

• Glass
• Other polymer materials
• Composite Materials

Since we conduct integrated production from raw materials to finished products, there are very few metallic foreign substances, making it suitable for various fillers for improving heat resistance and fluidity, as well as fillers for enhancing filling rates, such as pastes and sealing materials. We offer standard grades achieved through vibration screening and top-cut grades with sharp particle size distribution using air classification, and we can adjust particle size distribution and specific surface area according to customer needs, as well as provide various surface treatments.

• Fine Ceramics
• Glass

This document is the "Main Silica Sand Particle Size Distribution and Chemical Composition List" from Tōchū Co., Ltd., which ensures the supply of high-quality sand in various forms such as untreated, concentrated, dried, and coated. Our company consistently handles everything from the manufacturing, processing, to assembly of cast products using our own silica sand. As a leading manufacturer in the industry, we are also refining our extensive knowledge and skills by using silica sand ourselves. [Featured Products (Partial)] <Domestic Silica Sand> ■ Onsenzu Silica Sand ■ Utsumi Silica Sand No. 6 ■ Enshū Silica Sand ■ Mikawa Silica Sand No. 7, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Contract manufacturing
• Processing Contract

"Sarawak Silica Sand" is a high-quality silica sand refined and processed with unique advanced technology from Sarawak, Malaysia. With a SiO2 content of 99.5% and a relatively fine particle size distribution, it is effective for casting surface treatment. Additionally, silica sand produced from iron ore through table concentration is used in a wide range of fields, including glass materials and ceramic materials. [Features] - High purity silica sand with over 99.5% silica content - Effective for casting surface treatment *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Contract manufacturing
• Processing Contract

"Fuka Silica Sand" is a high-quality silica sand refined and processed using unique advanced technology from silica sand produced near Newcastle, Australia. With a SiC2 content of 95-96%, it has low expansion properties and excellent crush resistance, making it suitable for a wide range of molds, including high-pressure molding and shell molding. 【Features】 ■ Contains 95-96% silica, making it ideal for casting applications ■ Compared to high silica sands, it has low thermal expansion, which is effective for applications like bending ■ The particle size distribution peaks at 70-100 mesh, with 90% of the composition, making it suitable for casting sand *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Contract manufacturing
• Processing Contract

"ACI Silica Sand" is a high-quality silica sand refined and processed using unique advanced technology from the silica sand of Stradbroke Island, Australia. Additionally, we achieve stable supply and stable pricing under a consistent management system from mining to distribution. It can be used for a wide range of applications, including green sand, shell molds, cold box, self-hardening molds, and ceramics. 【Features】 ■ High purity silica sand with 99.5% silica content ■ Good grain shape improves mold filling properties ■ Excellent binder effectiveness due to good grain shape ■ Effective in reducing binder usage ■ Granulometric distribution peaks at 70-100 mesh, making it suitable for casting sand *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Contract manufacturing
• Processing Contract

"Onsenzu Silica Sand" is a high-quality silica sand produced in the vicinity of Onsenzu Town, Shimane Prefecture, and refined with unique advanced technology. It excels in both quality and quantity domestically and can be widely used for applications ranging from casting to glass raw materials. Additionally, since the production site is domestic, it has advantages over imported sand in terms of transportation costs and stable supply. 【Features】 ■ Suitable for casting ■ Coarse particle size composition with good permeability ■ Effective in preventing gas defects ■ Abundant reserves *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Contract manufacturing
• Processing Contract

"Kemarton Silica Sand" is a high-quality silica sand refined and processed using our unique advanced technology, sourced from a newly developed mining area in the suburbs of Perth, Western Australia. Currently, we import approximately 500,000 tons annually, mainly for use as glass raw materials and foundry sand. With a SiO2 content of 95-96%, it has low expansion properties and excellent crush resistance, making it suitable for a wide range of molds, including green sand high-pressure molding, shell molding, and cold box. [Features] - Suitable for foundry sand with 95-96% silica content - Compared to high silica sands, it has low thermal expansion, making it effective for applications such as bending *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Contract manufacturing
• Processing Contract

Albany silica sand is a high-purity silica sand with well-formed grain shapes. Through our unique classification processing at the local site in Western Australia, we can accommodate a wide range of particle sizes from coarse to fine. In recent years, it has also been highly anticipated in fields such as functional glass and specialty glass as ultra-low iron silica sand. 【Features】 ■ High-purity silica sand with over 99.5% silica content ■ Good grain shape, improving mold filling properties ■ Particularly for the 7th grade silica sand equivalent with a peak of 100-140 Mesh, effects such as the following are expected in the casting process compared to conventional products. *For more details, please download the PDF or feel free to contact us.

• Other polymer materials
• Contract manufacturing
• Processing Contract