The PumpMaster MJ-16 is a positive displacement piston pump designed for slabjacking/mudjacking, void filling and general pressure grouting applications. Features include an exclusive hydraulic drive train and low maintenance manifold system. It has a 5 cu. ft. material hopper and an 8.5 hp gas engine.
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![Fod No Caption 74 A Tc M Cy Uy[1]](https://img.forconstructionpros.com/mindful/acbm/workspaces/default/uploads/2026/08/fod-no-caption74atcmcyuy1.vcSFiPTy0m.png?ar=16%3A9&auto=format%2Ccompress&dpr=2&fit=crop&h=135&q=70&w=240)
