Page 6 of High-speed Lockstitch Machine with Automatic Thread Trimmer by Juki

what is the greatest benefit in using a direct-drive motor environment future the direct-drive motor which transfers the motor power to the machine with no energy loss not only offers economical benefits due to the power reduction but also reduces the machine s vibration and operating noise thereby helping reduce operator fatigue energy-saving comparison of power consumption by motor since the direct-drive motor transfers the motor power to the machine with no energy loss a significant reduction in power consumption is achieved offering remarkable economical benefits direct-drive motor directly connected to the main shaft ac servomotor v-belt type electronic stop motor v-belt type comparison of the amount of vibration by motor the direct-drive motor is a compact servomotor which is directly coupled with the main shaft the motor is housed inside the machine and has no mechanisms such as a v-belt which transmit vibrations and noise thus the motor runs without vibration and noise helping reduce operator fatigue if the machine is used for a long period of time direct-drive motor directly connected to the main shaft ac servomotor v-belt type electronic stop motor v-belt type optional switch 23632656 the switch is mounted above the reverse feed switch with this handy switch the operator is able use various functions with ease the switch is helpful especially in standing work with the option switch the operator can select one of various optional features which include the needle up/down compensation 1-stitch compensation reverse-stitch compensation auto-lifter thread trimming and cancellation of automatic reverse stitching at the starting and ending of sewing auto-lifter ak138 foot-pedal type 40056719 the auto-lifter is a device for automatically lifting the presser foot by the knee it is helpful also in standing work non-rotary bobbin the non-rotary bobbin bobbin:27003805 eliminates the irregular stitches prone to occur at certain sewing speeds and the fluctuations in bobbin case:27003755 bobbin-thread tension resulting from the amount of bobbin thread remaining in the hook since the bobbin thread is fed without rotating the bobbin the bobbin never idles the non-rotary bobbin requires an exclusive hook bobbin and bobbin case lubricated hook k 23621303 the hook is effective when used in processes for sewing rigid parts of fabric with a thin needle e.g the sewing process for foundation garments the hook has a hard blade point which is provided with a needle guard applicable needle size #8 to #10 power consumption wh amount of vibration standby power consumption ddl-9000a ddl-8700-7 ddl-8700-7 running power consumption conditions for comparison running speed 5,000rpm ddl-9000a ddl-8700-7 ddl-8700-7 conditions for comparison running speed 5,000rpm options micro-lifter 40056622 the micro-lifter works to prevent damage to the material or a slip between two plies when sewing a shaggy or elastic material the micro-lifter is finely adjustable in its height without using a tool juki grease a 40006323 the tube capacity is 20g juki grease a large tube type 23640204 the tube capacity is 100g for a substantial saving it is juki s exclusive grease for maintenance non-lubricated hook 22890206 non-lubricated hook 22890404 with a needle guard hook:27003557 the hook is used with the lubrication stopped thereby preventing oil stains the non-lubricated hook has a lace made of special plastic the non-lubricated hook is equipped as standard for the dry-head type sewing machines the following two parts must be added to enable use of the non-lubricated hook in semi-dry type machines or minute-quantity lubrication type machines non-lubricated hook hook driving shaft stop-plug screw 11079506 o-ring ro036080200 lubricated hook c 11141355 as compared with the regular hook lubricated hook c the lubricated hook c has a structure which has been designed giving a higher priority to the high-speed sewing capability the hook has a shaper blade point which is provided with a needle guard.

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