Hydraulic Mudjacking Pumps Our First Name Is Mud. Our Last is Pumps. The HMI HM-1 hydraulic mudjacking pump was the first concrete raising product engineered and manufactured by HMI, just over 40 years ago. It’s reliability and superior engineering maintains its place in the market, but has also acted as the springboard for other, more advanced models / options which offer various options of engine horsepower, hopper size, pumping pressure, and so much more. You’ve Asked for Equipment Additions, HMI listened! Pump Hose Nozzle Holder Brake HMI Mudjacking Pumps Power Pump Power Pump Click to view the HMI Power Pump Power Pump Versa Pump Versa Pump Click to view the HMI Versa Pump Versa Pump HM-1 HM-1 Click to view the HMI HM-1 Pump HM-1 Ready to learn more or get started with your new mudjacking pump? Contact Us About our Mudjacking Pumps Get Started With Our 2-Day Training Seminars!