S30,000 Semco Pump Hoist Well Service Unit: 60T-4L down position, used for installation of large submersible pumps, line shaft turbines and well completion. semco pump hoist The A-frame design telescopic derrick has double 6-inch cylinders for hydraulic erection, two 5-inch hydraulic outriggers at rear and 6,000-pound tail out winch for scoping derrick. For more information, visit www.semcooflamar.com