Chrome nickel is a chemical that can be used as a coating material to improve the quality of the material. To improve its quality, surface treatment is carried out with the electroplating-nickel chrom process method. The goal is to coat the surface of the material so that it is thicker and stronger. This research uses tower spanner as material to be coated with chrome nickel. The variables used are time with a variation of 40 minutes and 60 minutes. The tests performed were roughness tests using Surface Roughness Tester DR220 and thickness measurements using the Olympus BX53M Microscope. Based on the results of the study, it was found that the roughness value decreases with increasing time variation, that is, in the variation of time 40 minutes has an average roughness of 0.042 μm and at 60 minutes the variation has an average roughness of 0.032 μm. The thickness for the tower spanner also increases with increasing time variation, which is at a variation of 40 minutes the outer surface thickness that occurs is 68.88 μm and the inner surface thickness that occurs is 44.28 μm. Whereas in the time variation of 60 minutes the outer surface thickness that occurs is 99.62 μm and the inner surface thickness that occurs is 51.37 μm. From the results of the research data it can be concluded that the addition of time variations in chrome has an effect on decreasing roughness and increasing the thickness of the object.