Low plasticity burnishing (LPB) is a mechanical operation that aims to improve surface quality and mechanical properties of components, as an increase on hardness and fatigue resistance. In this work, a LPB device was developed to be use on flat and complex surfaces. To evaluate is applicability on a machining center, LPB was conducted on flat surfaces of AISI 304 Stainless steel. Roughness, waviness, and microhardness were evaluated as a function of the number of passes (n) and burnishing speed (V). The burnishing tests results indicated that the device presented repeatability and stability. The number of burnishing passes influenced the microgeometric profile as well as the macrogeometric one. Considering the arithmetic mean roughness (Ra) an increase on both input parameters promoted a decrease of amplitude. Number of passes was the most significant parameter, reducing the profile amplitude by deforming the roughness peaks originated from previous passes. The increase on V also promoted a decrease on Ra. For maximum profile peak height (Rp) and maximum profile valley depth (Rv), the number of passes was the most significant parameter. The interaction between n and V was also significant. The waviness parameters also had distinct influences, for arithmetic mean waviness (Wa) only the Vn interaction was significant, for the maximum profile peak height (Wp) the main effects were significant and for maximum profile valley depth (Wv) only the interaction. The number of passes showed a more significant influence on microhardness and an increase of n resulted in higher values.