Injection molding machine category specialized in prototyping and small-lot production of plastic products. Primarily handles small-scale and desktop injection molding machines optimized for material evaluation, molding condition studies, and prototype manufacturing during research and development stages. Emphasizes functions required for prototyping applications such as temperature control precision, injection pressure adjustment, and ease of mold replacement. Dedicated equipment supporting shape verification, material property evaluation, and molding parameter optimization before mass production in prototype development for automotive parts, electronic components, medical device parts, and other applications.