German electrostar tools electrostar models electrostar prices

electrostar tools integrate hydraulic systems with conventional tools into a unified assembly. They convert powerful hydraulic power into mechanical motions such as reciprocating linear motion, rotary motion, and cycloidal motion. A complete hydraulic tool system consists of five components: power elements, actuating elements, control elements, auxiliary elements, and hydraulic oil. Hydraulic tools include: hydraulic wrenches, electric pumps dedicated to hydraulic wrenches, hydraulic jacks, hydraulic bolt tensioners, hydraulic flange spreaders, hydraulic nut splitters, hydraulic pullers, etc. Hydraulic tools offer the advantages of high efficiency and convenience. A complete hydraulic tool system consists of five components: power elements, actuating elements, control elements, auxiliary elements, and hydraulic oil.

electrostar tool operating principle

The principle of hydraulics is based on two cylinders of different sizes filled with water or oil. Water-filled units are called "water presses"; oil-filled units are called "oil presses." Each cylinder contains a sliding piston. If a specific pressure is applied to the small piston, according to Pascal's law, the small piston transmits this pressure through the fluid pressure to the large piston, lifting it. Let the cross-sectional area of the small piston be S1, and the downward force applied to the small piston be F1. Thus, the pressure exerted by the small piston on the fluid is P=F1/SI, which can be transmitted unchanged in all directions through the fluid." The pressure received by the large piston must also equal P. If the cross-sectional area of the large piston is S2, the upward force F2=PxS2 generated by the pressure P on the large piston is a multiple of the small piston's cross-sectional area. From the above equation, applying a small force to the small piston results in a large force on the large piston. Therefore, hydraulic presses are used for pressing plywood, oil extraction, lifting heavy loads, forging steel, etc.

electrostar tool structure and composition

The function of the power element is to convert the mechanical energy of the prime mover into the pressure energy of the fluid. This refers to the oil pump in the hydraulic system, which supplies power to the entire hydraulic system. Common structural forms of hydraulic pumps include gear pumps, vane pumps, and piston pumps. The function of actuating elements (such as hydraulic cylinders and hydraulic motors) is to convert the pressure energy of the fluid into mechanical energy, driving loads to perform linear reciprocating motion or rotary motion. Control elements (i.e., various hydraulic valves) control and regulate the pressure, flow rate, and direction of the fluid in the hydraulic system. Depending on the control function, hydraulic valves are classified into pressure control valves, flow control valves, and directional control valves. Pressure control valves include relief valves (safety valves), reducing valves, sequence valves, pressure relays, etc.; flow control valves include throttle valves, adjustment valves, flow divider-combiner valves, etc.; directional control valves include check valves, pilot-operated check valves, shuttle valves, directional control valves, etc. Depending on the control method, hydraulic valves are classified into on/off control valves, fixed-value control valves, and proportional control valves. Auxiliary elements include oil tanks, oil filters, oil pipes and pipe fittings, sealing rings, pressure gauges, oil level and oil temperature gauges, etc. Hydraulic oil is the working medium that transmits energy in the hydraulic system, including various mineral oils, emulsions, and synthetic hydraulic oils.

electrostar tool types and features

Hydraulic tools include: hydraulic wrenches, electric pumps dedicated to hydraulic wrenches, hydraulic jacks, hydraulic bolt tensioners, hydraulic flange spreaders, hydraulic nut splitters, hydraulic pullers, etc. Hydraulic tools offer the advantages of high efficiency and convenience. 1) Generally use mineral oil as the working medium; relative moving surfaces are self-lubricating, resulting in long service life. 2) Light weight, compact size, low motion inertia, and fast response speed. 3) Various hydraulic transmission components can be arranged conveniently and flexibly as needed. 4) Automatic overload protection can be implemented. 5) Convenient operation and control, enabling wide-range stepless speed regulation (speed regulation range up to 2000:1). 6) Linear motion is easily achieved. 7) Machine automation is easily achieved; when electro-hydraulic combined control is adopted, not only a higher degree of automatic control process can be realized, but also remote control can be implemented.

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