With a combination of skilled personnel, mobility and the right equipment McRaes has become a significant force in Northland as a broad based engineering contractor specialising in such areas asHydraulic system design, sales, service and installationHydraulic System monitoring Hydraulic Power Packs â Design and buildHydraulic cylinder service & sales Hydraulic Hose & FittingsPneumatic system design, sales, service and installationIndustrial plant maintenance and shutdowns, Installation of new plant and machinery Project management Marine engineering, surveys and refitsAmmonia refrigeration coils panel.