Performance characteristics: progressive oil supply, piece structure (consisting of a first piece, 3-10 working pieces and a tail piece). Suitable for high-pressure working conditions, maximum pressure: 25Mpa, standard displacement: 0.16-1.12ml/cyc various specifications. Easy to monitor and control, can be equipped with circulation indicator lever or circulation switch. Medium used: lubricating oil ≥ N68#, grease: NLGI000#-2#. Suitable for medium pressure working conditions, maximum nominal pressure: 16Mpa.