Features 1、This is a small piston structure (tank volume: 0.6L) manual pump. Working principle: 2、When the handle is pressed by hand, the piston moves up and down under the action of a lever, which is a process of oil absorption; when the handle is loosened, the piston moves downward under the action of the spring force, and is an oil discharging pro 3、The pump can be combined with a throttling distributor to form a centralized lubrication system. It is suggested that the oil viscosity is N20-N500. 4、Right hand operated method, 4mm oil outlet diameter. 5、Widely used in lubrication system of CNC machine tools, machining center, production line, forging, textile, plastic, wood, rubber, mining, metallurgy, construction, printing, casting, auto, food and other mechanical equipment. Specification Features: This is a small piston structure (tank volume: 0.6L) manual pump. Working principle: When the handle is pressed by hand, the piston moves up and down under the action of a lever, which is a process of oil absorption; when the handle is loosened, the piston moves downward under the action of the spring force, and is an oil discharging process. The pump can be combined with a throttling distributor to form a centralized lubrication system. It is suggested that the oil viscosity is N20-N500. Right hand operated method, 4mm oil outlet diameter. Widely used in lubrication system of CNC machine tools, machining center, production line, forging, textile, plastic, wood, rubber, mining, metallurgy, construction, printing, casting, auto, food and other mechanical equipment. Specifications: Model: HP-5R Drive mode: Right hand operated Spit: 5ml/min Maximum discharge pressure: 5kgf/cm² Capacity: 650cc Outlet diameter: M8*1(4mm) Weight: Approx. 562g / 19.8oz Package List: 1 * Manual Lubricating Pump Package List