... Hydraulic pump: Gross power adjustment + variable power + negative flow control SW230 ExcavatorEngine here working mode, high power H, standard power S ... :2 x variable piston motor&1 x quantitative piston motor SW230 SPECIFICATIONNO.DESCRIPTION SPECIFICATON Main machine (1) Working weight23800kg(2) Bucket ... city Hubei Province Tel:0711-3612448/3612103Fax:0711-3612448/3612196 SW230 Excavator