山川産業 List of Products and Services

"Neo Blast" is a non-metallic abrasive material made from ferrous nickel slag. It features high hardness and specific gravity, as well as a grit shape suitable for grinding, resulting in minimal dust generation and allowing for clear visibility during work, which contributes to improved work efficiency and time savings. Additionally, it is characterized by a free silica content of less than 1% as specified by JIS Z0312, ensuring safety. Production at two factories also meets the demand for stable supply. 【Features】 ■ Equivalent to ferrous nickel slag as per ISO 11126-5:2018 and JIS Z0312:2016 ■ Capable of simultaneously removing old paint and dirt while preparing the substrate ■ Minimal dust generation, reducing the burden on workers ■ Free silica content of less than 1% ■ Supply with stable quality, price, and delivery time is possible *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• others

We provide silica sand suitable for underground tank installation. We handle washed, classified, and dried silica sand that is free of impurities and has a low moisture content. Since it is produced in a dedicated plant, there is no contamination from other impurities (such as asphalt or oil). 【Characteristics suitable for installation】 ■ Sand that has been washed and has low clay content ■ Dried in a rotary kiln, with a moisture content of less than 1% ■ Made from natural silica sand, with no additives and is harmless ■ No contamination from other impurities (such as asphalt or oil) ■ As this dried sand is used for hazardous material facilities, careful attention is paid to its dryness and storage *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

Our company provides sand suitable for golf course greens through appropriate granulation management. It does not contain silt (fine particles), ensuring good drainage and preventing the sand from compacting. Additionally, it does not contain stones or gravel, so sand spreaders (topdressing machines) do not get clogged, and it does not damage the blades of lawn mowers. 【Features】 ■ Does not contain silt (fine particles) ■ Good drainage and prevents sand from compacting ■ Does not contain stones or gravel ■ Sand spreaders (topdressing machines) do not get clogged ■ Does not damage the blades of lawn mowers *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

Our company offers sand that is easy to run on and has good drainage, specifically designed for infill materials (infill sand) for artificial turf. By spreading silica sand on artificial grass, the grass blades stand up more easily, improving cushioning and reducing strain on the legs and back. Additionally, the sand has high wear resistance and generates little fine dust, which means less frequent sand replacement is needed. 【Features】 ■ Improved cushioning ■ Reduced strain on the legs and back ■ Results in a court that is easy to run on and has good drainage ■ High wear resistance with minimal fine dust generation ■ Less frequent sand replacement needed *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

We offer sand with customized granularity for exterior materials to meet your needs. Our constant pursuit has been to contribute to solving our customers' problems through sand and the technology related to it, while being close to our customers. The issues that can be resolved by the material "sand," which never takes the spotlight and can be considered a behind-the-scenes player, may be few, but we are still promoting technological development to be of service to our customers. [Features] ■ For exterior wall materials such as extruded wall panels ■ Sand with granularity tailored to your needs *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

We provide sand suitable for self-leveling materials (SL materials) by removing fine particles that reduce fluidity. Due to the low amount of impurities in the sand, it does not negatively affect the quality of SL materials. For self-leveling materials that require fluidity, the sand used as a raw material is also crucial for maintaining fluidity. 【Features】 ■ Fine particles that reduce fluidity have been removed ■ Low amount of impurities in the sand ■ Does not negatively affect the quality of SL materials *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

We provide high-quality sand without color variations for slate roofs. In addition to natural silica sand based on white and brown, we also offer black monochrome artificial sand (NE Sand). You can utilize the beautiful colors of the sand itself in landscape design. 【Products Offered】 ■ Natural silica sand based on white and brown ■ Black monochrome artificial sand (NE Sand) *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

Our company provides silica sand with moderate silica content, which is used as aggregate in mortar. By incorporating our special artificial sand, NE Sand, as aggregate, it results in high-strength mortar. We can offer a wide range of particle sizes (silica sand: No. 3 to No. 7, NE Sand: No. 4 to No. 7). 【Available particle sizes】 ■ Silica sand: No. 3 to No. 7 ■ NE Sand: No. 4 to No. 7 *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

Our company offers sand coated with phenolic resin, known as "Resin Coated Sand (RCS)." By filling it into molds and heating it, it becomes a shell mold with excellent preservation properties, and as long as the shell mold is stored properly, it experiences almost no degradation over time, allowing for long-term storage. Additionally, we manufacture RCS that meets high-quality standards and various needs, and our strength lies in the ability to utilize a wide variety of artificial sands flexibly. 【Features】 ■ Sand coated with phenolic resin ■ Becomes a shell mold with excellent preservation properties ■ Shell molds experience almost no degradation over time ■ Shell molds allow for long-term storage *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

We would like to introduce our "Alkaline Phenol Self-Hardening Molds." Since it does not contain nitrogen or sulfur, it does not adversely affect the structure of cast steel or cast iron. It can be molded using fine sand, achieving a good casting surface even without a coating. This molding method has characteristics not found in traditional sand molds. The combination of the alkaline phenol molding method and the highly crush-resistant Espal not only improves the yield of recycled materials but is also suitable for producing high-quality castings. 【Features】 ■ Does not contain nitrogen or sulfur ■ Does not adversely affect the structure of cast steel or cast iron ■ Can be molded using fine sand ■ Achieves a good casting surface even without a coating *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

Our company manufactures sand suitable for the furan mold by removing impurities such as clay and adjusting the particle size distribution. Furan self-hardening molds are one of the representative molding methods widely used in sand casting in Japan. Additionally, they exhibit high strength, have good fluidity of the mixed sand, and are easy to adjust the usable time. **Features of Furan Molds** - One of the representative molding methods in sand casting - Exhibits high strength - Good fluidity of mixed sand - Easy to adjust usable time - Hardens through a dehydration condensation reaction *For more details, please refer to the related links or feel free to contact us.*

• Aggregates and crushed stone

Our company offers "casting aggregates/casting sand" for sand casting. We handle a wide variety of sands, including silica sand, artificial sands like NE Sand, Sun Green, and Espal, as well as specialty sands like Chromite Sand, allowing us to meet our customers' needs. To improve the impact of crystalline silica dust from silica sand on the working environment, more companies are switching from silica sand to artificial sand. 【Products Offered】 ■ Silica Sand ■ NE Sand (Artificial Sand) ■ Sun Green ■ Espal ■ Chromite Sand (Specialty Sand), etc. *For more details, please refer to the related links or feel free to contact us.

• Aggregates and crushed stone

We would like to introduce the "Water-based Coating Drying Machine" that we handle. Unlike burner-type heating, electric heating has a quick startup time, resulting in a shorter waiting time before use and no unnecessary energy loss. Additionally, by making the size compact, it is easy to transport and install. It not only uses infrared heaters but also blows hot air, further reducing drying time. 【Features】 ■ Electric type with no open flame ■ Short waiting time before use with no unnecessary energy loss ■ Compact design for easy transport and installation ■ Infrared heater plus hot air for shorter drying time *For more details, please refer to the PDF document or feel free to contact us.

• Air compressors, blowers and pumps

"Pitamold" is a sealing material that exhibits excellent adhesion in self-hardening molds, preventing leakage of molten metal from the mold joint surfaces. It is resistant to changes in temperature and humidity, maintaining sealing performance over long periods, making it suitable for year-round use. With minimal stickiness, it significantly contributes to improved work efficiency, and its white color makes it easy to recognize, which helps reduce work errors. 【Features】 ■ Excellent adhesion ■ Excellent storage properties ■ Minimal stickiness ■ Solvent-free type, so it has no irritating odor *For more details, please refer to the PDF document or feel free to contact us.

• glue

The non-metallic blast grinding material "NeoBlast" is used for paint film stripping, surface preparation, rust and dirt removal, and is utilized in various industries including bridges, oil tanks, plants, ships, and mold cleaning. It has the appropriate hardness, specific gravity, and shape for blast processing. Additionally, it generates minimal dust during blasting operations, allowing workers to maintain a clear line of sight, which contributes to improved work efficiency.

• Other flooring materials

Sand is used in various applications, starting with industrial products, but our company is further exploring "what can be done with sand." We welcome any ideas, whether they are practical suggestions like "there's a use for it!" or "can it be used for this?" or even surprising inspirations. We are eagerly seeking innovative uses for sand! Please share your ideas with us. 【Examples of Sand Usage】 ■ Casting: Aggregate for molds ■ Glass and Ceramics: Glass tableware, heat-resistant glass ■ Building Materials: Wall materials, roofing materials, insulation materials, paint materials, subbase materials ■ Steelmaking: Sliding nozzle sand for steelmaking ladles ■ Blasting: Blasting material for paint removal ■ Others: Combustion aid for incinerators, etc. *For more details, please feel free to contact us.

• Aggregates and crushed stone

"NE Sand" is an artificial sand with a rounded shape that has almost no adhesion of fine particles due to special grinding treatment. It is characterized by a low thermal expansion rate. Its hardness is also one of its features, with a Mohs hardness of 7.5 compared to 7 for silica sand. The free silica content is less than 1%, resulting in extremely low dust generation during work. 【Features】 ■ Special grinding treatment ■ Almost no adhesion of fine particles ■ Low thermal expansion rate ■ Hard ■ Extremely low dust generation during work *For more details, please refer to the PDF document or feel free to contact us.

• Aggregates and crushed stone

"Espal" is an artificial sand with a round shape and smooth particle surface. It is characterized by high fire resistance, low thermal expansion rate, and high thermal conductivity. Its hardness is also one of its features, with a Mohs hardness of 9 compared to 7 for silica sand. 【Features】 ■ Round shape with smooth particle surface ■ High fire resistance and thermal conductivity ■ Low thermal expansion rate ■ Hard *For more details, please refer to the PDF document or feel free to contact us.

• Aggregates and crushed stone