Advanced technology,simple structure.The buffering curve is steady and continuous,average negative acceleration under heavy load : 0.6g and under light load 0.3g. To protect the buffer from rusting the position is chrome-plated ,which can withstand the salt spray test for 48 hours .YHC series elevator oil bufferModel(P Q)Kg-Max(P Q)Kg-MinMax speed  (m/s)Plunger stroke(mm)Free height(mm)Oil modelOil volume(L)Rated speed(m/s)YHC8030007001.1580315L-HL-320.351.00YHC17530007002.01206612L-HL-321.51.75YHC27530007002.30275780L-HL-321.52.00YHC42530007002.884351128L-HL-322.202.50