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Ohori Grinding company is able to provide a high-tolerance OD grinding both in thin and long objects, where we possess vast experience from all proceeded requests from our customers We excel in outer diameter (OD) grinding of cylindrical parts OD Grinding is especially challenging with long and narrow parts that require very delicate manipulation to prevent bending during the process. We make use of a brace, straightener, or center-hole grinding machine, to support a maximum size of up to 2000 mm. We receive many requests for a required accuracy of 0.001 mm – 0.01mm in roundness, concentricity, or cylindricity. We can provide an inspection protocol sheet based on the measurements done from our on-site quality department using the roundness measuring machine.
| Main 3 products | Precision grinding From material procurement to finished parts |
|---|---|
| Type of manufacturing | Machine tools Industrial machinery Transportation equipment |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical grinding 2:Development and production of prototype/Small-scale production - Grinding processing - Internal grinding 3:Development and production of prototype/Small-scale production - Grinding processing - Plane grinding 4:Development and production of prototype/Small-scale production - Grinding processing - Profile grinding 5:Development and production of prototype/Small-scale production - Grinding processing - Jig grinding 6:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical mirror grinding 7:Product manufacturing - Medical equipment manufacturing - Medical equipment manufacturing |
High-precision shape creation processing for 150 x 30 x 40 carbide. Shape accuracy: ±0.8μm Surface roughness: Ra 16nm, Rz 165nm High-precision machining achieved by synchronizing the vertical and longitudinal axes. High shape accuracy and surface roughness can be obtained at the same time only by grinding. As a result, chipped cutting edge that has been problem in the past can be greatly suppressed.
| Main 3 products | Various Molding and Surface Grinders Super 2 Precision Processing Machine Ultra-precision Portal type Grinders |
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| Type of manufacturing | Machine tools Industrial machinery Electronic parts |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Grinding processing - NC plane grinding 2:Development and production of prototype/Small-scale production - Grinding processing - Plane grinding 3:Development and production of prototype/Small-scale production - Grinding processing - Form grinding 4:Development and production of prototype/Small-scale production - Grinding processing - Rotary grinding 5:Development and production of prototype/Small-scale production - Grinding processing - Double-sided grinding 6:Development and production of prototype/Small-scale production - Grinding processing - Gear grinding |
[SUS304 Emblem processing using die-sinker EDM] This is an example of SUS304 material processing using a die-sinker EDM. This is an example of emblem processing using a die-sinker EDM. Emblem processing is applied to SUS304 material. 【overview】 This is a sample product that we made when introducing a die-sinker EDM. In addition to aluminum, we can handle copper, iron, stainless steel, and difficult-to-cut materials. If you have any problems regarding the manufacturing of precision machinery parts, please contact us. 【size】 t12×40×100 [Processing equipment used] Mitsubishi Electric Die-sinker EDM EA12PSM X900 x Y650 x Z350
| Main 3 products | large machining Sheet metal and welding processing Industrial hard chrome plating/polishing |
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| Type of manufacturing | Jigs and tools Machine tools Industrial machinery |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical grinding 2:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical mirror grinding 3:Development and production of prototype/Small-scale production - Grinding processing - Plane grinding 4:Development and production of prototype/Small-scale production - NC machining - 5-face/5-axis machining 5:Development and production of prototype/Small-scale production - NC machining - NC lathe machining 6:Development and production of prototype/Small-scale production - Sheet-metal processing - Can manufacturing 7:Designing - Industrial equipment designing - Industrial machinery designing |
Special-Shaped Pins and Mold Pins Processing Technology｜For Cemented Carbide and Ceramics Special-shaped pins are critical components used as mold pins in various manufacturing settings. Particularly in the battery, electronic component, and semiconductor fields, they are frequently employed as mold core pins or press die pilot pins, demanding high precision and durability. Sanwa Creation Co., Ltd. manufactures special-shaped pins accommodating diverse forms, including elliptical, square, triangular to polygonal, and eccentric designs. ◇ Mold Pins as Special Shaped Pins Mold pins are pins used inside molds, essential components for shaping molded products. Particularly in mold dies, high precision is required to accurately maintain the product's shape and dimensions. Unlike standard round pins, special shaped pins feature complex forms such as ellipses, squares, triangles, or eccentric shapes, necessitating more advanced machining techniques. ◇Features of Special-Shaped Pins Beyond their distinct shapes, special-shaped pins offer diverse characteristics: 1. Oval Pins: Function as guides to prevent rotation, enabling stable positioning. 2. Square Pins: Provide high clamping force at corners, preventing slippage. 3. Triangular/Polygonal Pins: Used for chamfering and drilling applications, also serving as reamers. 4. Eccentric Pins: Offset positioning from the shank enables smaller mold designs and optimized space utilization. These special-shaped pins are engineered for specific applications, such as battery case processing, micro-hole machining for electronic components, and semiconductor forming processes. When used as mold pins, exceptional wear resistance and high precision are essential. ◇Materials and Characteristics Mold pins, as special-shaped pins, utilize the following materials selected based on application: 1. Cemented Carbide: Offers excellent wear resistance and minimal shape change, ensuring long service life. Its strength allows continuous use in press dies. 2. Zirconia Ceramics: A material with corrosion resistance and non-magnetic properties, suitable for electronic components and semiconductor manufacturing requiring clean environments. 3. SKH51 (High-Speed Steel): Maintains stable strength even in high-temperature environments, achieving high durability in battery component molding. ◇Applications of Special-Shaped Pins Special-shaped pins are widely used in the following manufacturing fields: - Battery mold pins: Maintaining dimensional accuracy during case molding - Positioning pins for electronic components: Ensuring precise placement and drilling - Guide pins in semiconductor manufacturing: Securing parts within mold dies - Miniaturization solutions for mold interiors: Utilizing eccentric pins to optimize internal space In these fields, high precision and wear resistance are particularly critical for mold pins, leading to widespread adoption of products made from cemented carbide or ceramics. ◇Product Specifications - Material: Cemented carbide, zirconia ceramics, SKH51 - Dimensions: Shank diameter φ2 to φ12, total length up to 150L - Precision: Within 1/1000mm - Lot Size: 1 to unlimited ◇Summary As special-shaped pins, mold pins are indispensable components in the battery, electronic component, and semiconductor fields. They accommodate shape variations such as oval, square, triangular, and eccentric, utilizing super-hard alloys and ceramic materials to achieve high durability. Sanwa Creation meets the needs for special-shaped pins through custom manufacturing. ◇Contact Information Sanwa Creation Co., Ltd. 1-26-8 Miyauchi, Nakahara-ku, Kawasaki-shi, Kanagawa 211-0051 TEL: 044-740-6800 FAX: 044-740-6801 https://www.sanwa-creation.co.jp
| Main 3 products | High precision pins and shafts Precision die components Diamond manufacturing tools and componen |
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| Type of manufacturing | Telecommunication equipment Electronic parts Electrical component for transportation equipment |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Grinding processing - Centerless grinding 2:Development and production of prototype/Small-scale production - Machining - High rigid material 3:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical grinding 4:Development and production of prototype/Small-scale production - Machining - Ceramic 5:Development and production of prototype/Small-scale production - Grinding processing - Form grinding 6:Development and production of prototype/Small-scale production - Grinding processing - Plane grinding 7:Development and production of prototype/Small-scale production - Machining - Stainless steel 8:Development and production of prototype/Small-scale production - Machining - Titanium alloy 9:Parts manufacturing - Machinery part - Shaft and roller manufacturing 10:Designing - Jig and tool designing - General jig designing |
| Main 3 products | Precision Parts Processing Inspection jigs Machining jigs |
|---|---|
| Type of manufacturing | Jigs and tools Measuring machinery Industrial machinery |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - NC machining - Machining (vertical) 2:Development and production of prototype/Small-scale production - Grinding processing - Form grinding 3:Development and production of prototype/Small-scale production - Grinding processing - Plane grinding 4:Development and production of prototype/Small-scale production - Grinding processing - Profile grinding 5:Development and production of prototype/Small-scale production - Machining - Machining/Handles small-scale production (order from 1 piece) 6:Product manufacturing - Production property - Other industrial machinery manufacturing 7:Assembly/Inspection - Assembly - Precision equipment assembly |
| Main 3 products | Full-Scale Plating Long-Length Plating Plating Liquid Recycling System (In-Hous |
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| Type of manufacturing | Machine tools Industrial machinery Transportation equipment |
| Recommended manufacturing category |
1:Surface treatment - Plating/Chemical conversion treatment - Hard chromium (rack) 2:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical grinding 3:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical mirror grinding 4:Development and production of prototype/Small-scale production - Grinding processing - Centerless grinding 5:Surface treatment - Other surface treatment - Buffing 6:Surface treatment - Plating/Chemical conversion treatment - Baking (hydrogen embrittling) 7:Surface treatment - Polishing/Lapping - Mirror polishing 8:Surface treatment - Plating/Chemical conversion treatment - Brass 9:Surface treatment - Plating/Chemical conversion treatment - Stainless steel 10:Surface treatment - Plating/Chemical conversion treatment - Copper |
Looking for micro pins with ultra-small through-holes (under Ø1.0 mm)? We specialize in manufacturing micro diameter pins with straight through-holes, using advanced processing technologies beyond conventional gun drilling or EDM. Our unique manufacturing method enables through-hole diameters as small as Ø0.1 mm, even in long-length components, supporting applications that require both miniaturization and high precision. These micro pins are widely applicable across medical devices, automotive components, semiconductor equipment, and precision engineering fields, contributing to improved performance and product innovation. [Key Capabilities] >Minimum inner diameter: Ø0.1 mm >Outer diameter: configurable (typically ID + Ø0.3 mm or more) >Maximum length: up to 300 mm (with OD features) / 1000 mm (straight type) >Inner diameter tolerance: 0 / +0.05 mm >Outer diameter tolerance: ±0.005 – ±0.02 mm >Surface roughness (ID): Ra 0.8 – 1.5 μm >Material: SUS304 Internal Surface Finishing (ID Polishing): ✓Available for diameters Ø0.1 mm and above. ✓Achievable roughness: Ra ≤ 0.05 μm (prototype: Ra 0.01 μm measured) ✓Enables improved performance such as reduced flow resistance for fluids and gases [Features] -Straight, precision through-holes in micro pins -Compatible with tapered, stepped, and complex outer geometries -Supports long and ultra-fine components -High-precision machining with stable quality -Available from single-piece / small lot production [Applications] >Custom medical needles (small lot / prototype) >Nozzles for dispensing, suction, and cooling >Gas/air vent pins for injection molding >Cooling pins for die casting molds >Sensor-related precision components [For Inquiries] WEBSITE：https://www.kk-takano.co.jp Email：takano@kk-takano.co.jp TEL:0276-22-6270 FAX:0276-22-6278
| Main 3 products | Punch,die,guide pin,bush for press mold Original oil-free tool (solid lubricant) Micro Pin Grinding for Medical Devices |
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| Type of manufacturing | Industrial machinery Transportation equipment Medical equipment |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Grinding processing - NC cylindrical grinding 2:Development and production of prototype/Small-scale production - Machining - Machining/Handles small-scale production (order from 1 piece) 3:Development and production of prototype/Small-scale production - Machining - Handles microfabrication 4:Development and production of prototype/Small-scale production - NC machining - NC lathe machining 5:Development and production of prototype/Small-scale production - Electrical discharge machine - Wire electric discharge machining 6:Development and production of prototype/Small-scale production - Electrical discharge machine - Electric discharge machining 7:Surface treatment - Heat treatment - Vacuum quenching 8:Development and production of prototype/Small-scale production - Grinding processing - Profile grinding 9:Development and production of prototype/Small-scale production - Grinding processing - Centerless grinding 10:Development and production of prototype/Small-scale production - Machining - Stainless steel |
φ330×1650 1ｔ
| Main 3 products | Manufacturing steel rolls for the metal industry in addition to offering a grinding process Manufacturing steel rolls for the paper industry in addition to offering a grinding process Pumps, turbins, rolls for printing machines, plastic and grinding process |
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| Type of manufacturing | Not selected Heavy electric machinery Industrial machinery |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - NC machining - NC lathe machining 2:Development and production of prototype/Small-scale production - Grinding processing - NC cylindrical grinding 3:Development and production of prototype/Small-scale production - NC machining - Five-face machining 4:Development and production of prototype/Small-scale production - Grinding processing - Cylindrical mirror grinding 5:Surface treatment - Polishing/Lapping - Mirror polishing 6:Development and production of prototype/Small-scale production - Machining - General-purpose lathe machining 7:Development and production of prototype/Small-scale production - Machining - Keyway milling |
We perform centerless grinding of various steel types, mainly stainless steel. Features of centerless grinding Centerless grinding is a method of grinding the periphery of a workpiece by adjusting the rotation and feed of the workpiece while supporting it between a fixed support blade, a rotating regulating wheel and a grinding wheel. The workpiece does not need to be mounted on the grinder, and the system can be used for small-lot to high-volume production. In addition, there is no deflection of the workpiece due to its own weight during processing, and the grinding accuracy can be maintained uniformly.
| Main 3 products | Centerless grinding & polishing |
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| Type of manufacturing | |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Grinding processing - Centerless grinding 2:Material - Steel component distribution - Steel (round) bar 3:Material - Steel component distribution - Stainless steel |
Blades for crushing corrugated cardboard waste and processing it for disposal. Material: SUJ2 Kinki Blade Industries has a complete production system from the design stage to molding, heat treatment and polishing to meet any need their clients might have. Producing excellent cutting instruments for a wide range of uses, their production system also allows them to meet high-mix low-volume orders. Please feel free to contact us.
| Main 3 products | Slotting machine upper blade Slotting machine lower blade Cutter blower fixing blade |
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| Type of manufacturing | Not selected Jigs and tools Industrial machinery |
| Recommended manufacturing category |
1:Parts manufacturing - Other parts - Blade manufacturing 2:Surface treatment - Polishing/Lapping - Blade polishing 3:Development and production of prototype/Small-scale production - Grinding processing - Form grinding 4:Development and production of prototype/Small-scale production - Grinding processing - Plane grinding 5:Development and production of prototype/Small-scale production - NC machining - Machining (horizontal) 6:Development and production of prototype/Small-scale production - NC machining - Machining (vertical) 7:Development and production of prototype/Small-scale production - Grinding processing - NC plane grinding 8:Development and production of prototype/Small-scale production - Machining - General-purpose lathe machining 9:Development and production of prototype/Small-scale production - Machining - General-purpose milling 10:Development and production of prototype/Small-scale production - Machining - High rigid material |
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