Tthe cutting-edge model 2-needle sewing machine which comes with substantially enhanced mechanisms such as the direct-drive mechanism, semi-dry head, new thread tension control mechanism and improved oiling system. All models of the LH-3500A Series are provided with a semi-dry head to eliminate staining with oil from the frame (the needle bar part). - A thread tension control mechanism has been developed for each type of sewing machine in order to achieve the best-suited thread tension for its purpose. A technology unique to JUKI - Two selectable new-method oiling mechanisms. Unique to JUKI - The sewing machine for jeans and heavy-weight materials (G type) produces well-tensed seams by the optimization of the feed mechanism. - Highly reliable thread-trimming mechanism - The internal mechanism of the sewing machine has been thoroughly re-investigated to achieve further improvement of maintainability and workability. - The operation panels CP-18A and CP-180A are provided with a production support function.