Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.
1～15 item / All 16 items
◆Leave the production and sharpening (re-sharpening) of industrial blades to us◆
◇You can use it with confidence as it is manufactured and polished by a knife maker with many years of experience◇ * We will cooperate not only in terms of quality but also in cost and delivery time. * Please feel free to consult us about anything related to blades (cutter blades).
Custom and standard round knives
A molybdenum-based high-speed steel with excellent toughness and wear resistance. It is a cutter with a round disc-shaped blade that has a continuous sharp edge along the outer circumference. *For more details, please refer to the PDF document or feel free to contact us.*
A wide range of products is available to accommodate various applications such as high-pressure hoses, rubber cutting, and pipes!
We would like to introduce the products we handle. The outer diameter (diameter) ranges from a minimum of 50mm to a maximum of 500mm, with a thickness of 1.0mm or more. The inner diameter (center hole) is 10mm or more, and the materials available for manufacturing are SKS-5 and SKH-51 (recommended) for industrial/steel use, and SUS440C (recommended) for food use. The products listed are a part of the round knives we manufacture. Please feel free to contact us when you need assistance. 【Product Lineup (Excerpt)】 ■ For high-pressure hoses ■ For rubber cutting ■ For pipes ■ For urethane cutting ■ For carpet cutting ■ For cloth cutting *For more details, please download the PDF or feel free to contact us.
Cutting paper, cloth, wipes, etc.! Rounded corner knife.
Product Name: Round Corner Knife Material: Carbide / High-Speed Steel Outer Diameter (D): 20mm to 200mm Thickness (t): 0.2mm or more Main Applications: Paper, Fabric, Wipers, etc. Additional Information: Angle (α): 8° or more (both corners), 5° or more (one corner) rotary knife
Exceptional sharpness!! Increased production efficiency! Enhanced durability! Please consider our replacement blades for slitter circular knives.
We offer high-precision, long-lasting slitting knives that combine a rich variety of materials for knives, such as ultra-fine particles, super hard materials, cermets, and zirconia, with various processing technologies to meet our customers' needs. We not only provide standard products but also accommodate custom-made requests. Please consult us for your desired size.
![[Case Study of Eco Knife] Insulation Material Manufacturer](https://image.mono.ipros.com/public/product/image/127185/IPROS5812226331343587828.jpg?w=280&h=280)
Reduce cutting chips by over 99% with Eco Knife! Achieve cost reduction and environmental contribution.
We would like to introduce a case study of large-diameter carbide circular knives (Eco Knives) and slitting processing at an insulation material manufacturer. We received a request to solve the dust problem caused by cutting with a chip saw, and we considered redesigning the blade shape to a knife configuration for production. The carbide was brazed to the outer circumference of the circular knife, but initially, there were many instances of chips coming off. However, with the development of a special brazing technique, this issue was improved, and by measuring the brazing strength for each blade, we were able to stabilize the product. As a result, both the dust problem and yield improvement were resolved simultaneously. [Customer's Challenges] ■ We want to solve the dust problem caused by cutting with a chip saw. ■ We want to improve yield. *For more details, please refer to the related links or feel free to contact us.
![Super hard round knife, replaceable blade type super hard cutter [Immediate delivery available]](https://image.mono.ipros.com/public/product/image/c31/2000688212/IPROS77544777482368936348.png?w=280&h=280)
High hardness, high toughness carbide material! Carbide round blade and replaceable blade carbide cutter! For cutting aramid fibers and more!
Are you facing any of these concerns? If you have any questions about cutting methods, please feel free to contact us, and our designers will speak with you directly and provide assistance. ■ I want to reduce the number of blade replacements. ■ I want to improve the precision of the cutting surface. ■ The commercially available blades lack durability, so frequent blade replacements are necessary. ■ I want to avoid a drop in quality even with cheaper blades. ■ I want to cut special fibers like aramid fibers... ■ Can you accommodate even small quantities? *We provide blades suitable for the material, shape, and angle of the cutting object. Considering improvements in product quality, production efficiency, and cost reduction through increased durability, we offer highly reliable blades. *For more details, please refer to the PDF document or feel free to contact us.
Comprehensive catalog of round knife products. Featuring various round knives, including original products.
The "Round Knife Products Comprehensive Catalog" features original products from Shinwa Kiba, including knives for food processing, high-pressure hoses, pipe cutting, tire cutting, glass wool (cotton) cutting, and various other round knives. Shinwa Kiba's round knives have strengths such as "manufacturing possible without drawings," "support from single items to mass production," "support from new blades to regrinding," "custom-made proposals and manufacturing," and "blade selection backed by 40 years of experience." 【Featured Products】 ○ Original Products ○ For fabric cutting ○ For glass cutting ○ For aluminum foil cutting ○ For slate cutting, and more For more details, please contact us or download the catalog.
It is proposed to prevent slipping and achieve cutting by adding a switch catch to the outer circumference of the round knife!
We would like to introduce a case study that addresses the customer's concern of "wanting to cut partially frozen food but being unable to do so." The issue was that the frozen food caused the blade to slip, making it difficult to cut. In response, our company proposed adding a serrated edge to the outer circumference of a round knife to prevent slipping and facilitate cutting. 【Case Overview】 ■ Concern: Unable to cut partially frozen food ■ Proposal: Add serrations to the outer edge to create grip ■ Cause: Frozen food causes the blade to slip and not cut (imagine cutting ice with a knife) ■ Solution: By adding serrations to the outer circumference of the round knife, slipping is prevented. *For more details, please download the PDF or feel free to contact us.
![[Case Study of Problem Solving] The sharpness is not good even after regrinding.](https://image.mono.ipros.com/public/product/image/cac/2001407071/IPROS71061364544793319886.jpeg?w=280&h=280)
We address the issue with revival processing that restores the width of the shank to its original width when new! Here are examples of how we solve problems.
We would like to introduce a case study that addresses the customer's concern of "the cutting edge is not good even after regrinding." The issue was that repeated regrinding resulted in a shorter bevel and a thicker cutting edge. Therefore, we responded with revival processing. Please feel free to contact us when you need our services. 【Revival Details】 ■ Tool Inspection (chipping, rust, cracks, etc.) ■ Tool Correction (warping, twisting, etc.) ■ Bevel Processing (restoring to the original length) ■ Edge Sharpening (sharpening at the original angle) ■ Safe Packaging *For more details, please download the PDF or feel free to contact us.
Cutting paper, cloth, wipers, etc.! Rounded corner knife
Product Name: Corner Round Knife Material: Carbide / High-Speed Steel Outer Diameter (D): 20mm to 200mm Thickness (t): 0.2mm or more Main Applications: Paper, Fabric, Wipers, etc. Additional Information: Angle (α): 8° or more (double angle), 5° or more (single angle) rotary knife
We will introduce a case where we received the actual blade, measured its dimensions, and manufactured the same item!
We would like to introduce a case study that addresses the concerns of a customer who said, "I purchased a used machine, but I don't know where to buy the blades." The customer was troubled because they did not know the machine manufacturer, and the blades had no manufacturer logo, dimensions, or material information, making it unclear where to place an order. In response, we asked the customer to send us the actual blades, and we measured the dimensions to manufacture the same ones. 【Case Overview】 ■ Concern: Purchased a used machine but don't know where to buy the blades ■ Cause: Unable to identify the machine manufacturer, and the blades had no manufacturer logo, dimensions, or material information, making it unclear where to order ■ Solution: We measured the dimensions and manufactured the same blades *For more details, please download the PDF or feel free to contact us.
We have introduced our proposed industrial blades, such as ultra-hard round knives made from ultra-fine particle alloys, in various industries.
Do you have any of these concerns? If you feel free to contact us regarding cutting methods, our designers will speak with you directly and provide assistance. ■ I want to extend the lifespan of the blades and reduce the frequency of replacements... ■ Commercially available blades lack durability, so frequent blade replacements are necessary. ■ I need to avoid a drop in quality even with cheaper blades... ■ I want to cut special fibers like aramid fibers... ■ Can you accommodate even small quantities? Our blades are tailored to the cutting object, providing materials, shapes, and angles suitable for the items being cut. We offer reliable blades considering improvements in product quality, production efficiency, and cost reduction through increased durability. *For more details, please refer to the PDF document or feel free to contact us.
Immediate delivery available from just one piece! Made of carbide, it offers outstanding sharpness that lasts. Smooth cuts can be achieved with just a rotation.
●What is a carbide round knife? A carbide round knife is made from a super hard alloy created by sintering powdered hard metal carbide. Due to its significantly higher hardness compared to iron-based metals, it can greatly reduce the frequency of blade replacements and line stoppages caused by wear. Under optimal cutting conditions, it boasts over 20 times the durability of commercially available products (according to our own research). Additionally, the round knife can be used immediately by simply clamping it in a holder, as it cuts using only rotational motion. This makes it easy to incorporate into designs and equipment. It can also be attached to commercially available cutters and machines, so we encourage you to give it a try. We can provide immediate delivery from just one piece! ●Where is it used? - Cutting rubber products containing reinforced fibers (aramid fibers) - Cutting rubber sheets - Cutting resin sheets - Cutting packaging films, etc. The industries are diverse, including food packaging and medical applications! Our cutting tools are tailored to the material to be cut, providing suitable blades in terms of material, shape, and angle. For more details, please refer to the PDF document or feel free to contact us.
![[Case Study on Problem Solving] Blades that have been re-sharpened multiple times feel a strain.](https://image.mono.ipros.com/public/product/image/30b/2001407086/IPROS33235182888130093241.jpeg?w=280&h=280)
We address the issue with revival processing that restores the width of the shinogi to its original width when new! Here are some case studies that solve your problems.
We would like to introduce a case study that addresses the customer's concern: "Using a blade that has been re-sharpened multiple times results in feeling a load during cutting." When re-sharpening is done repeatedly, the bevel shortens and the cutting edge becomes thicker, leading to increased side pressure and a corresponding load during cutting. In response, our company implemented a revival process to restore the bevel width to its original size. 【Revival Details】 ■ Blade Inspection (chipping, rust, cracks, etc.) ■ Blade Correction (warping, twisting, etc.) ■ Bevel Processing (restoring to the original length) ■ Edge Sharpening (sharpening at the original angle) ■ Safe Packaging *For more details, please download the PDF or feel free to contact us.
