Each employee is a US citizen or a legal documented worker. Phelps Industries takes pride in knowing that our equipment is fabricated in the USA; by a lawful employee who makes a fair wage and is offered benefits. The early years focused on pneumatic loading systems. In the early 1970’s Phelps Industries expanded in the manufacturing of truck dumpers, various hoppers and hydraulic power units. Hydraulic telescopic cylinders became a part of our offerings in 1980.