TDC serial type core drilling rig is suitable for conventional diamond core drilling in geological exploration such as metal and un-metal mine, coal field, gas field etc. It can drill holes from vertical to elevation angle through various sorts of formation including soft, hard and broken or fractured formation by wet / dry or flush method. TDC serial core drill rig is a full hydraulic top drive power head core drilling rig. Its main hydraulic components (hydraulic motor, pump, operating valve etc.) adopted world-famous brand goods to provide stable performance, reliable product quality and long life usage.