Profile: Johnson Industries manufactures reliable and innovation mining equipment. Our 4x4 super steer diesel personnel carrier is available with following features: four wheel drive, four wheel steering, maneuvers easily, air bags for smooth riding, and 4 types of engines. Our coal auger sampling system known as uni-sampler is used to retrieve coal samples from coal trucks, rail cars and river or ocean barges. Depending on the needs, uni-sampler can be manufactured as a stationary pier-mounted unit, mobile or a rail mounted unit.