Profile: Grimsby Hydraulic Services Ltd. manufactures and services hydraulic systems. BM1 motor is a small type pintle valve cycloid gear hydraulic motor, small volume & weight, applied to various swing mechanisms in plastic injection molding machines, road sweepers, lawn mowers, edgers and leather paring machines. Our services include hydraulic hose assemblies, mobile hydraulic hose services, hydraulic powerpack design, fault finding services, oil analysis and ram repair services.