五月工業 Product Lineup

Materials with high ductility, such as pure copper and copper alloys, are known to be extremely difficult metals due to the tendency to generate burrs and distortions during processing, particularly in conventional precision rolling (re-rolling) and edge rounding. Our company offers contract processing services for these challenging materials, utilizing our advanced technology and specialized equipment developed over many years. Through our unique processing approach, we can form beautiful semicircular rounded edges on soft and easily deformable copper strips without producing any burrs or cracks. At the same time, we implement strict thickness control at the micron level, which contributes to the uniformity of plating films in subsequent processes, prevents insulation breakage (short circuits), and reduces wear on press molds, thereby enhancing the quality and durability of your products. We flexibly accommodate a wide range of customer needs, from small lot production during the prototype development stage to mass production and requests for short delivery times. Please feel free to contact us regarding the high-difficulty processing of copper strips that may be challenging for other companies.

• Processing Contract

Are you troubled by "camber (lateral bending)" in metal hoop materials (ultra-thin materials, copper alloys, stainless steel, etc.) used in the automotive, electronic components, and semiconductor fields? If camber remains, it can cause serious issues such as "material feeding errors," "variability in punching dimensions," and "damage to molds" during precision pressing processes. Satsuki Industry can accurately correct camber in difficult-to-process materials that other companies have declined. 【Strengths of Satsuki Industry】 Correction of ultra-thin and difficult-to-machine materials: Capable of handling high-precision materials for automotive connectors and lead frames. Processing and machine technology: We design and manufacture our own slitters and correction machines, allowing for optimal correction by discerning the material's characteristics. One-stop service: In addition to camber correction, we provide comprehensive services including slitting and rolling. We contribute to improving yield and reducing the risk of line stoppages.

• Processing Contract

May Industrial Co., Ltd. specializes in commissioned slitting processing of metals in general (and some non-metals). The most common processing sizes currently are plate thicknesses of approximately 0.02mm to 1mm, with product widths ranging from 0.6mm to general widths. For fiber materials, we also mass-produce slits that are nearly square wire with a thickness of 2mm and a width of 2.4mm. Additionally, even for materials like reflow-plated items that are prone to surface scratches, our unique system allows for processing without cutter marks or scratches. 【Features】 ■ Ultra-narrow width ■ Scratch-free slitting ■ Minimal burrs ■ Minimal curl ■ Electromagnetic friction winding shaft *For more details, please download the PDF or feel free to contact us.

• Processing Contract