German ersa tools ersa models ersa prices

ersa tools are tools that use compressed air to drive a pneumatic motor and output kinetic energy. According to their basic operating methods, they can be divided into: 1) rotary type (eccentric movable vane type). 2) reciprocating type (volumetric piston type). General pneumatic tools mainly consist of the power output part, operation form conversion part, intake and exhaust path part, operation start and stop control part, tool housing and other main parts. Of course, pneumatic tool operation must also have an energy supply part, air filtration and pressure regulation part, and tool accessories. Main types include impact wrenches (also called pneumatic wrenches, air wrenches, air impact guns), pneumatic screwdrivers (also called pneumatic drivers, air screwdrivers), pneumatic grinders (also called pneumatic polishers, pneumatic wet grinders, pneumatic sanders, pneumatic grinding machines), pneumatic spray guns, pneumatic rivet guns, pneumatic nut setters, air chisels, air hammers, vibration-damping pneumatic saws, and vibration-damping pneumatic files.

ersa tool applications and usage

Electric hydraulic oil pumps can serve as hydraulic pumps for various hydraulic devices. When equipped with other hydraulic tools, electric hydraulic oil pumps can perform lifting, pressing, pipe bending, bar bending, straightening, shearing, assembly, disassembly and other tasks, reducing labor intensity and improving work efficiency. During use, open the vent nut, open the switch on the oil collection block, connect the power supply, and attach the quick connector to the quick coupling on the corresponding hydraulic device. Press the power switch; after the motor runs for 1-2 minutes, close the switch to the pressure-boosting state. At this time, the output hydraulic oil will perform various tasks, self-pressurizing with increasing load until 63MPA. After work is completed, open the switch to relieve pressure. After the hydraulic oil has returned, remove the quick connector, tighten the vent nut, unplug the power cord, and close the switch.

ersa tool structure and composition

The cross-sectional shape and distribution of the pole cores vary depending on the workpiece. Common structural types of electromagnetic chucks include rectangular and circular shapes. Rectangular magnetic poles are divided into longitudinal and horizontal arrangements. Longitudinal arrangement of rectangular magnetic poles is suitable for fixing larger workpieces; horizontal arrangement of rectangular magnetic poles is suitable for fixing smaller workpieces. Circular chucks are suitable for fixing ring-shaped workpieces or workpieces with complex shapes. The main characteristics of ordinary electromagnetic chucks are: magnetic lines of force are evenly distributed on the surface of the magnetic disk, electromagnetic attraction cannot be concentrated, and the magnetic force per unit area is relatively small; the direction of magnetic force is perpendicular to the chuck surface and difficult to change, producing only one type of magnetic force for workpieces of the same contact area; the point of action of the magnetic force on the workpiece is limited to the contact surface between the workpiece and the chuck and cannot be changed arbitrarily. Therefore, during machining, there are disadvantages such as low positioning accuracy, insufficient clamping force, narrow scope of application, and low production efficiency.

ersa tool usage

1) Before use, carefully inspect the tool to ensure there is no external damage, the switch operates flexibly without sticking, and the power cord and tool housing are intact. Use a 500V megohmmeter to measure the insulation resistance between the winding and the housing; the value must not be lower than O.5 megohms. See the attached table for insulation resistance values. 2) Handheld electric tools with metal housings must have a reliable protective grounding wire. The power cord is a multi-core soft rubber-sheathed cable, and its grounding protection wire must be securely connected at both ends. 3) Handheld electric tools should be used by dedicated personnel with certain professional knowledge. Strictly adhere to relevant safety operating procedures during use. 4) Before use, check whether the relevant electrical and mechanical protection devices are intact and functioning normally. Also ensure that the rotating parts rotate flexibly without sticking. 5) When using Class I handheld electric tools, users must wear prescribed protective equipment and use qualified protective gear. Take corresponding anti-electric shock safety measures as required, such as installing residual current devices in the power circuit, or having the user wear insulating gloves, insulating shoes, or stand on an insulating mat. When using Class II handheld electric tools in damp and confined spaces, install a residual current circuit breaker with an operating current of less than 1.5mA and an operating time of less than or equal to 0.1 seconds. The residual current circuit breaker should be placed inside the container and monitored by a dedicated person. 6) Occupational hazards of using handheld electric tools. Arm vibration disease caused by long-term hand-transmitted vibration work was listed as one of China's statutory occupational diseases as early as 1957, also known as local vibration disease, typically manifested as episodic white finger.

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