I In this company there are three types of tap connectors, namely tap connectors 35-70 / 35-70, tap connectors 6-25 / 35-70, and tap connectors 6-25 / 6-25. Based onthe product demand table, the company cannot meet consumer demand for the threetypes of tap connector products with a total demand of 33560 units / week in April2019. The initial stage of the analysis is carried out by calculating the capacity andknown bottleneck work stations, namely the injection process in the componentbody parts connector 1, body connector 2, and overtop. Two alternative proposalsfor capacity building were carried out, namely time buffer, and the addition ofmachine facilities at the bottleneck work station. Time buffer is given in the formof overtime hours for 4 hours conducted on Saturdays. The added engine facilitiesare 1 unit injection machine. The calculation results are carried out simulationsusing promodel software and based on the simulation results it is known that for thecompany's current conditions, the production time for manufacturing 33560 units /week takes 93.24 hours. In April 2019, the company's available time is 89.78 hours,so the company's available time is not sufficient to simulate the initial model. Basedon the results of the proposed model with time buffer, the company's available timechanges to 93.78 hours, so that it can meet the simulation time. The results of thesimulation time of the model in the proposed addition of engine facilities changethe simulation time to 83.91 hours. Based on the alternative results obtained, theproposed time buffer and the addition of engine facilities can increase capacity forthe three Tap Connector products.