Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
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The Serapoblock has become a sheet type.
Ceramic Sheet Uses Rust removal, fine burr removal, polishing finish, surface preparation before mirror finish, fine scratch removal, removal of discoloration from welds, paint stripping, hairline correction (#46・80) Other applications can be expanded depending on creativity. Features Can be freely cut with a utility knife or similar tool.
We manufacture products tailored to the user's requests and supply the best products.
Hydraulic cylinders, steel mill rolls, paper rolls, film rolls, and more... Repair and new production of rolls and cylinders in various locations involve processes such as vertical grinding of iron, stainless steel, and chrome. Shin-ei Seito Co., Ltd.'s high-speed roll grinding wheels are manufactured to meet user requirements, providing the best products. For more details, please contact us or refer to our catalog.
It demonstrates its performance in terms of sharpness, finish, and whetstone life.
The Shin-Ei P series grinding stones for gravure printing are products developed for polishing copper rolls used in gravure printing, utilizing a unique blend of abrasive materials and bonding agents. By fully leveraging the characteristics of resin-bonded materials, they demonstrate excellent performance in terms of cutting ability, finish quality, and grinding stone life. For more details, please contact us or refer to the catalog.
Hamasuri whetstone for pottery wheel
Use Finishing of the thread bottom for pottery (Used with a hamasuri machine)
This is a masterpiece infused with the passion poured into the diamond sharpening stone.
The "Diamond Grinding Stone" is a diamond whetstone that offers a smooth sharpening experience. It provides a gripping sharpening feel similar to that of natural whetstones. It also features high grinding power combined with excellent flatness retention. The grit sizes range from #200 to #30000, including various special grits. 【Features】 ■ Gripping sharpening feel like that of natural whetstones ■ High grinding power and excellent flatness retention of diamond whetstones ■ Minimal wear of the whetstone ■ Grit sizes from #200 to #30000 ■ Can smoothly sharpen even hard blades *For more details, please refer to the PDF document or feel free to contact us.
Leave the cutting of hard brittle materials to SACUTTER!
The product we are introducing this time is the diamond precision cutting wheel SACUTTER. It is developed for hard and brittle materials that are difficult to cut with conventional cutting wheels, making it ideal for cutting and grooving hard alloys, glass, ceramics, and more. It excels in cutting performance and processing accuracy, and we highly recommend you give it a try.
![[Method Introduction] Resinoid Method](https://image.mono.ipros.com/public/product/image/3fb/2000528021/IPROS47461676750045926543.jpeg?w=280&h=280)
It is widely used for processes ranging from regrinding, roll grinding, cutting, deburring, and other precision finishing operations.
The "Resinoid Manufacturing Method" involves adding phenolic synthetic resin and other binding agents to the abrasive grains of the raw material, and then firing it at around 200°C to produce the product. The vitrified manufacturing method allows for the production of grinding wheels using ultra-fine powders that are difficult to use or abrasive grains that are challenging to combine, without deformation, resulting in grinding wheels with excellent grinding performance (sharpness and finish). Grinding wheels produced by this method are used for ultra-precision finishing processes, such as polishing grinding wheels for magnetic heads of audio and video card readers or ferrite cores, as well as for end face polishing of fiber optic connector parts, due to their good grinding performance. 【Features】 ■ Manufactured by firing at around 200°C ■ Capable of producing grinding wheels with good grinding performance ■ High safety due to elasticity and toughness ■ Widely used *For more details, please refer to the PDF document or feel free to contact us.
Using GC, the hardest among the abrasive grains.
The product we would like to introduce from our main product line of mold grinding wheels is the 'GC' product. This is a ceramic grinding wheel that uses GC abrasive grains, which have the highest hardness among abrasives. It generates little heat, making it suitable for grinding materials that are sensitive to heat. It enables precise grinding of hard materials such as carbide tools and superalloys. Currently, we are offering free samples, so please feel free to contact us for more details!! ↓↓↓ --------------------------------------------- Yamato Seito Co., Ltd. Sales Department 5-1613 Hata, Kashiba City, Nara Prefecture 639-0245 TEL: 0745-77-2955 FAX: 0745-78-0667 Email: yamato@yamatoseito.co.jp URL: http://www.yamatoseito.co.jp ---------------------------------------------
Grinding stone using C abrasive particles.
The product we would like to introduce from our main product line of mold grinding wheels is the product called 'C'. It is a ceramic grinding wheel that uses C abrasive grains. It has less wear than WA grinding wheels and is suitable for polishing castings and press molds. The available grit size ranges up to #2000. Currently, we are offering free samples, so please feel free to contact us for more details!! ↓↓↓ --------------------------------------------- Yamato Seito Co., Ltd. Sales Department 5-1613 Hata, Kashiba City, Nara Prefecture 639-0245 TEL: 0745-77-2955 FAX: 0745-78-0667 Email: yamato@yamatoseito.co.jp URL: http://www.yamatoseito.co.jp ---------------------------------------------
Grinding stone using PA abrasive particles.
The product we would like to introduce from our main product line of grinding wheels is the item called 'PA'. It is a ceramic grinding wheel that uses PA (Pink Alundum) abrasive grains. It is ideal for dry use in polishing press molds and similar applications. Currently, we are offering free samples, so please feel free to contact us for more details!! ↓↓↓ --------------------------------------------- Yamato Seito Co., Ltd. Sales Department 5-1613 Hata, Kashiba City, Nara Prefecture 639-0245 TEL: 0745-77-2955 FAX: 0745-78-0667 Email: yamato@yamatoseito.co.jp URL: http://www.yamatoseito.co.jp ---------------------------------------------
Suitable for dry use.
The product we would like to introduce from our main product line of mold grinding wheels is the "YHB." The "YHB" is a ceramic grinding wheel for rough to medium finishing, which is impregnated with general-purpose phenolic resin on a WA grinding wheel. Due to its high resin strength, it is less likely to break under heavy loads during grinding, such as rib polishing, and it experiences less wear even when grinding rough surfaces. It is suitable for cases where a dry-use option is needed. The hardness of the grinding wheel is of type "I." We are currently offering free samples, so please feel free to contact us for more details!! ↓↓↓ ---------------------------------- Yamato Grinding Wheel Co., Ltd. Sales Department 5-1613 Hata, Kashiba City, Nara Prefecture 639-0245 TEL: 0745-77-2955 FAX: 0745-78-0667 Email: yamato@yamatoseito.co.jp URL: http://www.yamatoseito.co.jp
Perfect for final finishing and mirror polishing!
The product we would like to introduce from our main product line of mold grinding wheels is the "YTM." The "YTM" is a resin-based grinding wheel developed for the final finishing and mirror polishing of molds. It provides a wonderful gloss due to its soft touch and moderate strength (equivalent to wood). It is ideal for corners and grooves that are difficult to polish with paper, and it achieves more than five times the gloss compared to ceramic grinding wheels. The grinding wheels are color-coded by grit size, making them easy to manage, and they can be safely used for polishing non-ferrous metals. The grinding wheels come in two hardness types: hard and soft. *As it is a combustible solid, please ensure that the grinding wheels are dried naturally. This can cause a fire hazard. Currently, we are offering free samples, so please feel free to contact us for more details! ↓↓↓
Perfect for final finishing and mirror polishing!
The product we are introducing this time from our main product line of mold grinding wheels is called 'YTM'. 'YTM' is a resin-based grinding wheel developed for the final finishing and mirror polishing of molds. It provides an excellent gloss with a soft touch and moderate strength (equivalent to wood pieces). It is ideal for corners and grooves that are difficult to polish with paper, achieving more than five times the gloss compared to ceramic grinding wheels. The grinding wheels are color-coded by grain size, making them easy to manage, and they can be safely used for polishing non-ferrous metals. The grinding wheels come in two hardness types: hard and soft. *Due to being a flammable solid, please ensure that the grinding wheels are dried naturally. This can cause a fire hazard. Currently, we are offering free samples, so please feel free to contact us for more details!!
The most commonly used whetstone.
The product we would like to introduce from our main product line of grinding wheels is the "WA" product. The WA grinding wheel is a ceramic-based grinding wheel that uses WA abrasive grains and is the most common type. It has good breakage resistance and generates little heat, making it suitable for grinding operations with a wide contact area between the workpiece and the grinding wheel, as well as for finishing and light grinding of high-speed steel and special steel. Currently, we are offering free samples, so please feel free to contact us for more details!! ↓↓↓ --------------------------------------------- Yamato Seito Co., Ltd. Sales Department 5-1613 Hata, Kashiba City, Nara Prefecture 639-0245 TEL: 0745-77-2955 FAX: 0745-78-0667 Email: yamato@yamatoseito.co.jp URL: http://www.yamatoseito.co.jp ---------------------------------------------
The mold grinding stone with the highest strength in the YH series.
The product we would like to introduce from our main product line of mold grinding wheels is the 'YHB-T'. This is a ceramic grinding wheel for rough to medium finishing, which is impregnated with high-fracture-resistance phenolic resin in WA grinding wheels, and it is the strongest product in the YH series. It provides a smooth finish when cutting and removing the altered layer of materials after machining or electrical discharge machining, especially when surface roughness is a priority. Additionally, due to its strength, it is less likely to break during roughing operations under load or when working with small-sized grinding wheels. However, it tends to clog easily in dry conditions, so please use it wet. We recommend "BLUE CUT" from our company. The hardness of the grinding wheels comes in three types: "L" (hard), "J" (medium), and "H" (soft). Currently, we are offering free samples, so please feel free to contact us for more details!! ↓↓↓
It has a strong retention of sulfur intensity, is difficult to break, and has excellent workability.
The product we would like to introduce from our main product line of mold grinding stones is the product called "YHS." This is a grinding stone that has sulfur impregnated into a WA grinding stone. By adhering sulfur to the pore walls of the grinding stone, it can prevent grinding marks on molds. It has a moderate strength retention of sulfur, making it less likely to break and excellent in workability. Additionally, the lubricating effect of sulfur improves the surface roughness of the mold and significantly reduces the wear of the grinding stone. The hardness of the grinding stone is of type "I." (Note) As it is a flammable solid, please ensure that the grinding stone is dried naturally. It may cause a fire. Currently, we are offering free samples, so please feel free to contact us for more details!! ↓↓↓ ---------------------------------- Yamato Seito Co., Ltd. Sales Department 5-1613 Hata, Kashiba City, Nara Prefecture 639-0245 TEL: 0745-77-2955 FAX: 0745-78-0667 Email: yamato@yamatoseito.co.jp URL: http://www.yamatoseito.co.jp
All-rounder in mold grinding
The product we would like to introduce from our main product line of mold grinding wheels is the 'YHZ'. The 'YHZ' is a ceramic grinding wheel developed for semi-finishing and finishing applications. While the grinding wheel does wear slightly, it exhibits outstanding grinding performance. It is an all-rounder that can be adapted to all types of mold steel, regardless of whether dry or wet grinding is used. It also has good compatibility with both oil-based and water-soluble oils, and it is environmentally friendly, containing no harmful substances to humans or the environment. The hardness of the grinding wheel comes in two types: "L" (hard) and "J" (soft). Currently, we are offering free samples, so please feel free to contact us for more details!! ↓↓↓ ---------------------------------- Yamato Seito Co., Ltd. Sales Department 5-1613 Hata, Kashiba City, Nara Prefecture 639-0245 TEL: 0745-77-2955 FAX: 0745-78-0667 Email: yamato@yamatoseito.co.jp URL: http://www.yamatoseito.co.jp
Translucent hard Arkansas whetstones are classified as genuine hard Arkansas whetstones according to specific grading based on specific gravity testing.
●The distinction between Black Hard and Translucent Hard within this genuine Hard Arkansas whetstone is simply based on customer preference. ●The Translucent Hard Arkansas whetstone appears uniform and shows translucent shades of gray, white, yellow, brown, and occasionally pink. Although it is called translucent, it is actually closer to an opaque white color. ●Due to being quarried from nature, we cannot accommodate specific requests for size, mesh, color, etc. Please choose from the item numbers.
Powerful sharpness! A new 0.8mm blade for stainless metal with exceptional cutting performance has arrived!
"Power Eight" is an ultra-thin cutting disc for rechargeable grinders. We are excited to introduce a new ultra-thin 0.8mm disc with exceptional cutting performance. It is suitable for stainless steel and achieves powerful cutting ease. 【Specifications】 ■ Outer diameter x Thickness x Hole diameter: 105x0.8x15mm ■ Abrasive grain, grit, hardness: AZ60Q ■ Maximum operating peripheral speed: 80m/s ■ Packaging: Small box containing 10 pieces / Large box containing 200 pieces *For more details, please refer to the PDF document or feel free to contact us.
Translucent hard Arkansas stones are classified as genuine hard Arkansas stones according to specific grading based on specific gravity testing.
●The division of this genuine hard Arkansas whetstone into black hard and translucent hard is simply based on customer preference. ●The translucent hard Arkansas whetstone appears uniform and shows translucent shades of gray, white, yellow, brown, and occasionally pink. Although it is called translucent, it is actually closer to a milky white color. ●Due to being quarried from nature, you cannot specify the size, mesh, color, etc. Please choose from the item numbers.
Introducing the new 105×1.0mm thin, double-sided reinforced cutting disc suitable for stainless steel and metal!
We handle the thin, double-sided reinforced cutting wheel "Extra One." It has minimal burrs and burning, and excels in cutting performance, durability, safety, and cost-effectiveness. We are pleased to announce the new 105×1.0mm size. Please feel free to contact us for inquiries. 【Specifications】 ■Outer diameter x thickness x hole diameter: 105x1.0x15mm ■Abrasive grain, grit, hardness: AZ46SX ■Maximum operating peripheral speed: 80m/s ■Packaging: Small box containing 10 pieces / Large box containing 200 pieces *For more details, please refer to the PDF document or feel free to contact us.
Grinding wheels that respond to the diversification of grinding processes with composite grains of varying hardness, viscosity, and brittleness.
The "M Series Grinding Wheel" achieves a high grinding ratio and grinding efficiency, allowing for processing of complex shapes without burning and with minimal home collapse. Conventional alumina-based abrasives A, WA, and SA have been further subdivided according to their applications. This allows for the acquisition of various abrasives with different characteristics, enabling the selection of varying degrees of wear, breakage, and detachment even under complex grinding conditions. Additionally, we can supply grinding wheels of appropriate quality according to the application, preventing cost increases due to excessive quality. *For more details, please download the PDF or contact us.*
No flange tightening tool required! Experience the comfortable cutting performance and outstanding durability with X-LOCK.
This product is a cutting disc specifically designed for grinders compatible with the X-LOCK system. With one-touch installation and removal, it prevents accidents caused by forgetting to tighten the flange or loosening. Not only can you confirm that it is securely attached with a "click" sound, but it also prevents accidental installation of accessories that have a fixed rotation direction. 【Features】 ■ Exclusively for the X-LOCK system ■ For stainless steel and metal ■ One-touch installation and removal ■ Clearly indicates that it is properly attached ■ No flange tightening tool required *For more details, please refer to the PDF document or feel free to contact us.
Less likely to clog! Grinding wheel suitable for fitting metal parts and machine components, as well as for fine surface finishing.
Kuroda's "Electroplated Diamond Compo" is a grinding stone used for fitting metal and mechanical parts, lapping, and fine surface finishing. Thanks to its mesh-structured grinding surface, it allows for polishing without applying much force, is resistant to clogging, and enables smooth work without interruptions. It can be used on hardened alloy steel, carbide, ceramics, glass, silicon, ferrite, porcelain, stone, concrete, carbon, gemstones, FRP, and general steel. 【Features】 ■ Can be polished without much force ■ Resistant to clogging ■ Suitable for fitting metal and mechanical parts ■ For lapping and fine surface finishing *For more details, please refer to the catalog or feel free to contact us.
Elimination of clogging due to the pore effect! High-lifespan grinding wheels with minimal wear.
This product is a high-precision grinding wheel specifically designed for GaN/Al2O3, which achieves sufficient supply of grinding fluid by dripping it from within the grinding wheel to the workpiece. By supplying the grinding fluid from within the grinding wheel, we have enhanced the efficiency of the grinding speed and the prevention of clogging, which has been a challenge in the past. It prevents variations in grinding performance due to temperature changes and early carbonization caused by localized temperature rises in the grinding wheel, enabling stable grinding operations. 【Features】 ■ Realization of grinding fluid supply from within the grinding wheel ■ Significant reduction in edge chipping ■ Concentration of 180, greatly improved grinding efficiency ■ Vitrified bonding ■ Clogging prevention through pore effects *For more details, please refer to the PDF document or feel free to contact us.
The main body can be folded compactly, and all the equipment can be loaded into a single light van!
The "RS-1" is a rail grinding machine that uses a lithium-ion battery. The main body can be compactly folded, allowing the entire device to be loaded into a single light van. Additionally, the special grinding material "3B series" consists of grinding material cut into strips and embedded in the wheel. It exhibits excellent cutting performance and durability. The cushioning properties of the grinding material allow for grinding without damaging the shape of the rail's top surface. We have rental machines available, so please contact us for more details. 【Specifications】 ■ Main body structure: Aluminum frame welded structure ■ Wheel material: MC nylon, steel ■ Drive motor: AC servo motor, 200V-1.5KW ■ Rotational speed: 4500rpm ■ Power supply: Lithium-ion battery 50V20A, capable of approximately 2 hours of grinding ■ Grinding amount: 0.02mm ■ Grinding wheel: 142×65 with R ■ Overall length: 863mm (stored: 760mm) ■ Overall width: 326mm ■ Overall height: 946mm (stored: 470mm) ■ Weight ・Device: 20kg ・Battery: 16kg *For more details, please refer to the PDF document or feel free to contact us.
High-quality products with silent operation and durability! Introducing elastic offset grinding wheels for stone materials.
The "NEX'US Z-Four" is a type of elastic offset grinding wheel for stone materials, designed with a special manufacturing method that gives the grinding wheel elasticity and a structure that absorbs vibrations. It produces minimal tapping and significantly reduces grinding noise. Additionally, there are hard areas (grooves) and soft areas (normal hardness) on the same working surface, which allows each abrasive grain to work efficiently, contributing to a burn prevention effect and leading to a substantial increase in grinding volume. 【Features】 ■ Structure that absorbs vibrations by giving elasticity to the grinding wheel through a special manufacturing method ■ Minimal occurrence of tapping and very low grinding noise ■ Presence of hard areas (grooves) and soft areas (normal hardness) on the same working surface ■ Burn prevention effect ■ Leads to a significant increase in grinding volume *For more details, please refer to the PDF document or feel free to contact us.
