HYTORC standard electric power packs. Reliable, efficient and economical, the HY-115 will outperform any standard pump on the market. The Hydraulic Power System operates at a very quiet ~80 dB. All pumps come equipped with an Oil Cooler, making overheating a thing of the past. Simple controls make for short set-up times and the upgradeable semi-automatic feature allows the operator to experience faster and easier tightening.