NiMnGa Heusler system is the principal ferromagnetic shape memory alloy and a reference system for all the physical investigation in this field. Then the microstructure of polycrystalline NiMnGa alloys has been widely investigated to improve the functional properties and to reduce their typical brittleness. Increasing interest has been devoted to different kinds of fabrication routes for this material, also starting from powders by additive manufacturing. In the present study, Ni50Mn30Ga20 (at%) dense samples alloy was produced by means of the open die pressing (ODP) process. This sintering method was implemented as an alternative and low-cost method for the consolidation of NiMnGa powders. The effects of the thermo-mechanical processing were investigated and correlated to the NiMnGa functional properties. Besides complete physical characterization by means of differential scanning calorimetry, mechanical analysis, structural diffraction and optical microscopy, we present in this work a complete characterization of the thermo-mechanical properties of these sintered samples. The obtained particular mechanical properties related to a very reduced brittleness give a promising chance to open the development of interesting elastocaloric performance. For the first time the elastocaloric properties of sintered NiMnGa were evaluated in terms of ΔTad and ΔSiso. With respect to the cast alloy reported in literature, the ODP process allowed a better elastocaloric performance due to increased elastic response of the samples produced, stable for more of 200 cycles. Indeed in view of multicaloric applications, the main innovative outcomes for this sintered NiMnGa samples of this research are the promising elastocaloric properties in terms of stable ΔTad of 2.5 K associated to a strain of 3% and ΔSiso of 25-30 J/K kg.