サンコー List of Products and Services

At Sanko Co., Ltd., we handle "Hinge and Mechanical Unit Products." We provide strong support for our customers' development from the planning and conceptual stages through detailed design and experimental evaluation, achieving a reduction in development time. We actively propose technologies that pursue cost and productivity from the early design stages, supplying high-quality, value-added products at low prices. Additionally, we conduct simulations using structural analysis systems to ensure quality from the design stage, reducing the number of prototypes and achieving savings in time and costs. 【Features】 ■ Achieves a reduction in development time ■ Pursues cost and productivity from the early design stages and actively proposes technologies ■ Supplies high-quality, value-added products at low prices ■ Ensures quality from the design stage using simulations with structural analysis systems ■ Reduces the number of prototypes to achieve savings in time and costs *For more details, please refer to the PDF materials or feel free to contact us.

• Contract manufacturing

Our company specializes in "insert molding" among injection molding processes. Both metal pressing and plastic injection molding molds are designed and manufactured in-house, allowing us to conduct all production internally, which enables thorough quality control. Additionally, there is the advantage of having a single point of contact for both pressing and plastic procurement. 【Features】 ■ Product design that combines the strength of metal pressing with the shape flexibility of resin ■ All metal pressing and plastic injection molding processes are handled in-house ■ Benefits such as reduced lead times due to the consolidation of procurement contacts ■ Molds are of reliable Made in Japan quality ■ Numerous achievements in home appliances, office equipment, and automotive sectors *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing
• Processing Contract

Our development department is engaged in the development of new technologies and new methods. We offer various development styles tailored to our customers' needs. We can handle method development based on future production, prototype support for small lots, consideration of method conversion from non-press methods to press processing, and the development of elemental technologies. Virtual prototyping using press forming CAE analysis is also possible. Please feel free to consult us about items that may seem difficult to produce with pressing. 【Features】 ■ A rational technology development system based on experience and numerical data ■ Various development styles available according to your preferences ■ Simultaneous consideration of future production ■ Consideration of press forming CAE analysis alone for short delivery times and low costs is also possible *For more details, please refer to the PDF materials or feel free to contact us.

• Plastic Mould

Sanko has successfully formed side walls with uneven thickness by adding forging elements to the drawing process. In our unique molding experiments inspired by components of automotive CVTs, we completed the prototype mold in four processes (two forging drawing processes + two end face cutting processes). We can also accommodate considerations for press forming feasibility during development. We will devise suitable methods according to your requests, so please feel free to consult with us. 【Features】 ■ Formation of complex spline shapes through combined drawing and cold forging processes ■ Different thickness specifications can be set depending on the location ■ A total of four processes to reach the state shown in the image, excluding single press processing and cutting processes *For more details, please refer to the PDF materials or feel free to contact us.

• Press Dies
• Contract manufacturing
• Processing Contract

In "Composite Processing of Cold Forging," complex concave and convex shapes can be formed through various composite processing techniques such as crushing, extrusion, and transfer. By effectively utilizing forging shape analysis and element experiments, we implement efficient production startups. Surrounding equipment, such as material supply devices and transfer transport devices, is custom-made to match processing conditions. With dimension management at the 0.001mm level, we can accommodate mass production of tens of thousands to hundreds of thousands of units per month. Please contact us for inquiries. 【Features】 ■ Formation of complex concave and convex shapes through composite processing of various cold forging techniques such as crushing, extrusion, and transfer ■ Smooth latch parts without breakage ■ Strength assurance through press process design considering fiber flow *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Contract manufacturing
• Processing Contract

"Corner Beading Process for Automotive Airbags" By utilizing press forming analysis during mold design, it is possible to achieve almost no errors during actual prototyping and enable short lead times for initial product delivery. To set an optimal flange shape according to the product shape, we minimize material usage and realize environmentally conscious manufacturing. With our in-house robotic transport system, stable production of hundreds of thousands per month is achievable. 【Features】 ■ Mold design utilizing press forming analysis (simulation) ■ Short lead times for initial product delivery ■ In-house robotic transport system boasting high productivity ■ Setting optimal flange shapes according to product shape ■ Minimal material usage *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Contract manufacturing
• Processing Contract

Busbars generally use copper materials, but there are always parts that must be discarded during the material processing in press working. To maintain the Earth's environment, we want to reduce this as much as possible! Our company proposes the ultimate material utilization through edgewise bending in the press process, segment processing that reduces trimming punch width to zero, and a combination of other original special techniques. We will devise a method tailored to the desired busbar shape. While significant material reduction may be possible, unfortunately, there are also cases where this is not achievable. Consultations are free. Time spent hesitating is a waste. Please feel free to contact the person in charge. Contact: Element Development Department, Nakamasu 0263-52-2920 nakamasu@sko.co.jp

• Press Dies

A technical seminar was held. "Utilization of Simulation in Mold Manufacturing" http://www.seikaken.org/seminar/h29/171220press/171220press.html (Organizer) Nagano Prefecture Precision Machining Technology Research Association (Sponsored by) Japan Society for Technology of Plasticity

• Press Dies

All molds are manufactured at our own factory in Nagano Prefecture. Skilled craftsmen assemble molds processed with cutting-edge equipment. We accommodate VA/VE initiatives such as transitioning from other methods to pressing or resin molding, material reduction, and productivity improvement. One of our strengths is the ability to procure both pressed and resin parts in-house. We can manage insert and outsert processing centrally. For unit components, we handle everything in-house, starting from mechanical design, various pre-evaluations using CAE, to assembly production. We offer total package proposals. *For more details, please contact Kikuchi. Sales Headquarters, Kikuchi 0943-74-7501 kikuchi@sko.co.jp

• Processing Contract
• Mold Design