Rotary Hook Bobbin Case 'Koban'

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last updated：Aug 17, 2015

佐文工業所本社工場

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We meet our customers' needs with advanced precision machining technology and a consistent production system.

The rotary hook and bobbin case "Koban," which is a core component of industrial sewing machines. The consistent processes of cutting, heat treatment, polishing, assembly, and quality inspection are packed with the high-precision machining technology that Sabun Kogyo has cultivated over decades. These components, which operate at 12,000 revolutions per minute, require not only the strength to withstand high-speed rotation but also complex and precise shapes to ensure reliable sewing. Sabun Kogyo Co., Ltd. has been proactive in automating its equipment from an early stage, achieving a production system that can accommodate thousands of different specifications tailored to customer needs in small lots. 【Features】 [Development Department] - Development of products that meet customer demands - Cost reduction through VA/VE proposals - Use of 3D CAD CAM to handle complex three-dimensional shapes through cutting processes [Production Technology Department] - Design and manufacture of jigs necessary for processing complex shapes - Proposals for automation lines for mass-produced items For more details, please contact us or download the catalog.

Related Link - http://www.sabun.co.jp/koban/index.html

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【Features】 [Manufacturing Department] ○ Machining Division → A wide range of equipment from general-purpose milling machines and lathes to NC multi-tasking lathes and 5-axis machining centers → Automation equipment has also been added to meet all kinds of demands ○ Heat Treatment Division → Equipped with carburizing quenching furnaces and brazing furnaces → Various barrel equipment is also well-equipped → Capable of meeting requests for heat treatment as well as surface treatment ○ Grinding Division → Numerous CNC cylindrical grinding machines and vertical grinders → Enables unmanned operation through robot supply, accommodating products that require high precision and quality ○ Finishing Division (Polishing, Assembly) → Equipped with various facilities such as buffing, paper grinding, and blasting, achieving the best finish by skilled artisans ○ Inspection Division (Quality Assurance Department) → Delivers products that meet customer requirements through a thorough quality control system → Specialized staff also handle the strict appearance finishing required for medical devices ● For more details, please contact us or download the catalog.