Double-sided Whetstone 400/1000 Green Silicon Carbide

Double-sided Whetstone 400/1000 Green Silicon Carbide

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 3 pc

Supply Capability:: 100000 pc/month

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Material: Green Silicon Carbide
Specification: 400# and 1000#

Double-sided Whetstone 400/1000 Green Silicon Carbide

Q&A
Q:Does our product support customization?
A:Our products can support customization, but there are requirements for the quantity, you can contact us for details.

Q:When you call or send a quotation request, what information do you need to provide?
A:Your needs for the product, and what you want to know in detail.

Q: How are hand powered tools classified into class I, class II, class III?: Class I protection against shock of the product depends not only on the basic insulation of the equipment, but also on additional safety precautions. The method is to connect the electrically conductive parts that may be touched with the protective wires in the installed stationary lines so that the accessible, electrically conductive parts are not electrified in the event of basic insulation damage. Such products are: hand-held power tools, mobile daily appliances, mobile mechanical and electrical equipment.

Q: What are the common rotors of power tools?: Electric drill: the main specifications are 4, 6, 8, 10, 16, 19, 23, 25, 32, 38, 13, 49mm and so on. Figures refer to the maximum diameter of the drill drilled on the steel whose tensile strength is 390N/mm. For non-ferrous metals, plastics and other materials, the maximum drilling diameter is comparable to the original specifications of 30 to 50%.Electric grinding machine: a tool for grinding with a grinding wheel or millstone. A vertical electric wheel and electric angle grinder.Electric wrench and electric screwdriver: used for loading and unloading threaded fittings. The driving mechanism of the electric wrench is composed of a planetary gear and a ball screw groove impact mechanism. Specifications are M8, M12, M16, M20, M24, M30 and so on. The electric screwdriver adopts the embedded clutch, transmission mechanism or gear drive mechanism. The specifications include M1, M2, M3, M4, M6 and so on.

Q: What kind of power tools are hand drills? 1, 2 or 3?: You can see the cable plug, the aluminum shell is inserted three I tools, is grounded, the aluminum shell and some II tools, because it has a plastic insulation between the stator and the aluminum shell, so it is the installation of two wire plug.

Q: What safety problems should we pay attention to when using electric drills or hand-held power tools?: All conducting parts must be well insulated,

Q: What's the role of carbon brushes in electric tools?: Carbon brush specific function1. the external current (excitation current) is added to the rotor by carbon brush (input current);2., the static charge on the big shaft is introduced into the earth (carbon brush) through the carbon brush (output current);3. lead the main shaft (ground) to the protection device for rotor ground protection and measure the positive and negative voltage of the rotor;

Q: Compared to pneumatic tools, what are the advantages of electric tools?: The pneumatic tool is more environment-friendly, energy-saving, and has better environmental adaptability, and is safer than an electric tool. The pneumatic tool has the advantages of simple structure, convenient operation, long service life and convenient maintenance

Q: What is the working principle of power tools?: An electric motor that rotates by alternating current is called an alternating current motor. There are many kinds, mainly:A, the series excitation motor - rectifier DC generator for AC motor, namely into this kind of motor, at the same time shift due to alternating current in the magnetic field and the armature circuit, therefore, the direction of the torque constant remains unchanged, the machine is kept turning. This kind of motor can also be used as AC and DC, so it is also called universal motor". Vacuum cleaner, sewing machine and other household appliances, etc..B, an induction motor -- a device that rotates the rotor in the rotating magnetic field and causes the rotor to rotate due to the action of eddy currents. Rotating magnetic field is not caused by mechanical method, but by alternating electric flux in the number of electromagnets, so that the magnetic properties of the cycle of change, can be seen as a rotating magnetic field. Usually three-phase induction motor (with three pairs of magnetic poles) is used. The motion of the DC motor is just the opposite of the direct current generator. In the generator, the induced current is formed by the induced electromotive force, so they are in the same direction. In an electric motor, the current is supplied by an external power supply, and the direction of the induced electromotive force is in opposition to the armature current I.C and synchronous motor - the motor with the armature from one pole to the second pole, just the same as the current that turns into the current. This kind of motor cannot start on its own and must be operated by another motor or special auxiliary winding so that the proper frequency can be reached before it can be switched on. If the load changes and the speed changes, the speed is not in line with the AC frequency, so that the pace of disturbance, tend to stop or cause damage. Due to restrictions, it is not widely used.

Q: Is the motor of an electric tool the alternating current motor or the direct current motor?: Compared to the AC motor and DC motor, because there is no commutator (see DC motor commutation), therefore has the advantages of simple structure, convenient manufacture, relatively strong, easy to make high speed motor, high voltage, high current, large capacity. The coverage of AC motor power greatly, from a few watts to several 101000 watts, even millions of kilowatts.

Q: What kind of material does the power tool case have?: An electric tool case is made of a variety of materials, such as plastics, cast iron, etc..

Q: What's the difference between a flashlight and an electric screwdriver?: Equipped with torque regulation and restriction mechanism, electric tool for screwing and unscrewing screws, the electric tool, mainly used for assembly line. Is one of the necessary tools for most manufacturing enterprises.

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