DJW-1 electric drum pattern in mind, has a simple, rugged, work without noise, stable and reliable, widely variable speed range, ease of use and maintenance. For medical colleges and research institutes in animal tissue mechanical activity recorded in physiology, pharmacology and biology experiments. Parameters: Power supply: single-phase AC 220V50HZ Dimensions: 700 mm × 200 mm × 500mm Weight: 12.5 kg DJW-1 electric drum pattern recorded with a simple structure, small, lightweight, durable, work without noise, stable and reliable, speed range extensive, easy to use and maintenance. For medical colleges and research institutes in animal tissue mechanical activity recorded in physiology, pharmacology and biology experiments. Such as user requirements can be installed as a passive double drum drum pattern Used in mind.