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)OB1025007001.15100385L-HL-320.41.00OB16553007001.84175625L-HL-321.71.75OB207553007002.30290915L-HL-322.62.00OB2553007002.884351300L-HL-323.72.50