●Updated the precious metal information. [February 1, 2018]

Compared to extruded and drawn materials, there is less variation in outer diameter and reduced bending of the material! We have a large inventory and can accommodate short delivery times!

"Centerless grinding" is a processing method for machining cylindrical materials that does not require center support, allowing for the processing of long materials, pipes, and machined products without selecting specific processing machines. It excels in outer diameter precision, roundness, and straightness, resulting in high-precision materials. We possess a variety of inspection equipment, including bending inspection devices and micrometers, so customer-side material inspection is unnecessary. Additionally, to deliver high precision to our customers, we offer four types of packaging methods, including support packaging. *We have a rich inventory, including A7075B-T6511 and A6061B-T6 available!* 【Features】 ■ Improved yield ■ Increased production efficiency ■ Can be handled with only sampling inspections ■ Supports shortened delivery times *For more details, please refer to our catalog or feel free to contact us.*

• Other processing machines
• Processing Contract
• aluminum

We will strongly support manufacturing with a competitive edge through non-ferrous metal materials and processing technologies!

Kyoei Metal Co., Ltd. is based on the field of non-ferrous metal materials and their processing technology, embodying high value-added manufacturing services that satisfy our customers. We will derive optimal solutions in all aspects, including functionality, quality, cost, and management, for the requirements of the "users" regarding non-ferrous metal processed parts. By achieving a balance of extremely refined product and service quality, we strongly support our customers' competitive manufacturing. 【Business Description】 ■ Sales of non-ferrous metal materials and their processed parts *For more details, please refer to our catalog or feel free to contact us.

• Other processing machines
• Processing Contract
• aluminum

Case study of aluminum centerless adoption by an automotive parts manufacturer.

We would like to introduce a case study of an automotive parts manufacturer that has adopted our unique technology, "Centerless Grinding." At Company T, there was variability within the outer diameter dimension tolerances, and they were struggling with material layer separation work before processing. However, since adopting "Aluminum Centerless," they no longer need to perform material layer separation work for thicker and thinner materials, and they are now able to adequately handle inspections through sampling. As a result, work efficiency has significantly improved, and the yield of the processing has remarkably enhanced. [Overview] ■ Automotive parts manufacturer ■ Company T, automotive air conditioning parts ■ <Target part> A6061B-T6 φ19 *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines
• Processing Contract
• aluminum

Case study of aluminum centerless adoption by a medical manufacturer.

We will introduce a case study of a medical manufacturer that adopted our unique technology, "Centerless Grinding." Company M was forced to conduct 100% inspection due to material wobbling and lack of roundness, but the adoption of "Aluminum Centerless" significantly improved the processing yield. Additionally, being able to place a consistent order from material procurement to centerless processing is also an advantage. 【Overview】 ■ Medical Manufacturer ■ Company M Dental Medical Devices ■ <Target Parts> A6061B-T6 φ9–11 *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines
• Processing Contract
• aluminum

Case study of aluminum centerless adoption by an industrial machinery manufacturer.

We would like to introduce a case study of an industrial machinery manufacturer that has adopted our unique technology, "centerless grinding." At Company P, even when outsourcing centerless processing to another vendor, aluminum materials were often avoided due to the grinding wheel becoming clogged. However, Hashinaga Metal specializes in aluminum, making it easier to request services, and we received high praise for the finishing quality in terms of outer diameter, straightness, and roundness. Additionally, we have included a case study of machine parts, pins, and shafts from industrial machinery manufacturer Company S. [Overview (Company P)] ■ Industrial Machinery Manufacturer ■ Company P Machine Parts ■ <Target Parts> A7075B-T6511 φ20 *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines
• Processing Contract
• aluminum

Is the aluminum material you are currently using really ◎? It is ideal for moving spindle CNC lathes, and its effectiveness is tremendous for parts with strict requirements for roundness and cylindricity.

Centerless grinding is a processing method for machining cylindrical materials. It is called "centerless" because grinding is performed by passing the material between two rotating grinding wheels without fixing the workpiece at the center. It is characterized by superior dimensional accuracy, surface roughness, and roundness compared to drawn materials. 【Application Example】 A2017B-T3: φ2.1～φ3.0×2500mm (2000mm) *After centerless processing Outer Diameter Tolerance: +0 -0.004 Roundness: 2μm Application: Two-wheeled vehicle carburetor parts

• aluminum

Is the aluminum material you are currently using really ◎? It is ideal for moving spindle CNC lathes, and its effectiveness is tremendous for parts with strict requirements for roundness and cylindricity.

Centerless grinding is a machining method used to process cylindrical materials. It is called "centerless" because grinding is performed without fixing the workpiece at the center, by passing it between two rotating grinding wheels. It is characterized by superior dimensional accuracy, surface roughness, and roundness compared to drawn materials. 【Adoption Example】 A6061B-T6: φ19×2500mm (Extruded rod) ⇒ φ18.9×2500mm (after centerless processing) Outer diameter tolerance: (±0.06) ⇒ (+0 -0.02) = By performing centerless grinding, a dramatic reduction in defect rates was observed in cutting processes. ⇒ (By performing correction processing, it becomes possible to improve surface accuracy with minimal cutting allowance.)

• aluminum

Is the aluminum material you are currently using really ◎? It is ideal for moving spindle CNC lathes, and its effectiveness is tremendous for parts requiring strict roundness and cylindricity.

Centerless grinding is a processing method used for machining cylindrical materials. It is called "centerless" because grinding is performed by passing the workpiece between two rotating grinding wheels without fixing it at the center. It is characterized by superior dimensional accuracy, surface roughness, and roundness compared to drawn materials. 【Adoption Example】 A6061B-T8: φ6.5～φ14×2500mm Outer Diameter Tolerance: +0 -0.006 Bending Tolerance: 4μm/100mm or less Surface Roughness: 3.2S or less Application: Automotive transmission parts

• aluminum

No need for material inspection before use or for stratification work with thicker or thinner layers! Significantly improve processing yield!

【Feedback from Medical Manufacturer M】 ■Issues: When processing the drawn material as is, the material would wobble, causing misalignment in the product's axis, which was problematic. ■Suggestion: Use centerless material. ■The need for material inspection before use and for sorting into thicker and thinner layers has been eliminated, significantly improving processing yield. For more details, please download the catalog or contact us.

• aluminum

On September 15, 2026, we issued a press release regarding the wooden lightweight sheet "Hyper CLT Sheet." The Hyper CLT Sheet is a civil engineering sheet that utilizes CLT (Cross-Laminated Timber) stacked in an orthogonal direction. It can be used in various locations such as temporary roads, access routes, heavy machinery work yards, and material storage areas. The 5×10 version weighs approximately 230 kg, making it relatively lightweight and easy to install, remove, and relocate. Additionally, it offers environmental benefits such as reducing glare and metallic sounds typical of wood, as well as CO2 fixation. Furthermore, it can be proposed for the use of new technologies in public works as a **registered technology with the Ministry of Land, Infrastructure, Transport and Tourism "TH-250021-A."** Through this press release, we aim to expand the new wooden lightweight sheet that combines wood, NETIS, civil engineering, and CLT to more construction sites.

● The production time for cast prototypes can be shortened! Since model making is not required, the production time for prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! Different products, such as similar shapes or varying dimensions, can be molded at the same time in one molding process. This allows for the verification of multiple types in a short period.

The "HA-T Series" is an energy-saving automatic door sensor that opens only for those who wish to enter, whether on a busy street or in a narrow passageway. The automatic door opens simply by bringing your hand close, addressing hygiene concerns even in facilities used by a large number of people. You can choose between "Non-vision Mount Type/HA-T401" and "Non-vision Built-in Type/HA-T520" depending on the application and installation location. 【Recommended for such places!】 ☑ Entrance facing a busy corridor ☑ Presence of counters or signs near the door ☑ Buildings facing narrow passages ☑ Buildings that prioritize aesthetics ☑ Hospitals and facilities that consider hygiene ☑ Large facilities with many doors 【Features】 ● Adaptable to various door types with four detection spot settings ● Reduces unnecessary opening and closing, contributing to energy-saving by minimizing wasteful power consumption ● Equipped with a light touch function, allowing the door to open and close just by waving your hand, ensuring hygiene ● Can also be used as a wide detection range non-vision infrared sensor ◎ For more details, please download the materials or contact us.

Metal cracks are one of the concerns in equipment maintenance operations. Repairs using conventional welding methods often change the base material around the crack due to heat, leading to residual stress and deformation, which constantly carries the risk of "crack recurrence" and "secondary damage." Hinode Waterworks Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Metal cracks are one of the concerns in equipment maintenance operations. Repairs using conventional welding methods can alter the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" or "secondary damage." Hinode Waterworks Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material with heat. Repairs can be performed even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.