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DC reversing contactor is a switching appliance suitable for remote manipulation (closing, opening or switching) of high-power electrical appliances. The contactor is used in electric vehicles, and the coil consumes a large amount of power, which is generally used for intermittent duty. DC contactors are mainly used for making and breaking DC circuits at a long distance and frequently starting, stopping, reversing and reversing braking DC motors, and also for frequently connecting and disconnecting lifting electromagnets, solenoid valves, clutches electromagnetic coils, etc.

When the brushed DC motor is working, the coil and the commutator rotate, but the magnetic steel and the carbon brush do not rotate. The alternating change of the current direction of the coil is accomplished by the commutator and the carbon brush that rotate with the motor. Compared with brushless motors, brushed motors have fewer wires, just one positive and one negative wire. If the BDC motor needs to be reversed, just switch the position of the two wires and it will be done.

A DC-DC converter is a power supply or electromechanical device which can convert a direct current (DC) power source from one level to another. Its power can range from very small (small power source) to very large (high voltage power conversion). Some DC-DC converters have the same reference point for the output voltage and input voltage, while some DC-DC converters have the output voltage isolated from the input voltage.

A circular connector is a type of electromechanical component used to make or break an electric circuit. These multi-pin connectors are basically cylinder-shaped and feature a circular mating surface designed for connection. What does its inner structure looks like? How do we disassemble it for wiring? What benefits could it bring to us? Where are they applied? This blog will lead you to the answers.

A portable vibration meter is a simple instrument that can measure the vibration displacement, vibration velocity, and vibration acceleration of the equipment. It is generally used for equipment inspection. The portable vibration meter is small in size, light in weight and compact in structure. The instrument integrates the functions of multi-channel vibration acquisition, infrared temperature measurement and laser speed measurement, which not only meets the requirements of portable acquisition, but also realizes powerful on-site Data acquisition and machine failure analysis functions.

There are two and three positions for toggle switch operation. Three button switch and a certain side of the position is not positioned, etc. At the same time, its connection circuit types are also more. There are many kinds of button handles for toggle switches, such as metal conical knob handle, plastic conical knob handle, fluorescent knob handle, plastic sleeve knob handle, spherical knob handle, flat bar knob handle, lock bar knob handle, wave knob handle, paddle knob handle, etc. Lock lever handle is suitable for dangerous operation. There are "promote unlock" type knob handle, which is provided with a spring, screw mouth end milling groove. The operator must first lift the knob handle and then push it to another position to ensure safe work.

A centrifugal pump is a mechanical device designed to move fluid by transferring rotational energy from one or more driven rotors, called impellers. Fluid enters the rapidly rotating impeller along its axis and exits through the impeller's blade tips along its circumference by centrifugal force. The action of the impeller increases the velocity and pressure of the fluid and directs it towards the pump outlet. The pump casing is specially designed to compress the fluid from the pump inlet, direct it to the impeller, and then slow and control the fluid before discharging.

Vacuum contactor is a device that can withstand multiple operations (strong mechanical life). It can cut off the load current at the same time, but can not break the short-circuit current. The vacuum contactor has two contacts, normally open and normally closed, and does not have the function of short-circuit current protection. When a given signal is received, it can perform separation and hold actions. Analogus to ordinary home circuit, VCB is like a circuit breaker at home inside a panel and VC is a relay in our any of instruments at home.

What exactly is the difference between incremental and absolute encoders? An absolute encoder can tell you the exact position of the shaft in its rotation at any given time (and how many rotations have transpired on a multi-turn absolute encoder). An incremental encoder can only report a change in position. It may not sound like a big difference, but it's night and day if the system has a loss of power. Once power is restored, an absolute encoder can report exact position without any movement. An incremental encoder will need to find an Index or home position before it can do so – and if it doesn't have an index, it won't be able to tell you it's position at all.

Rotary switch is a multi - loop control appliance which is made up of several contact components of the same structure. It consists of operating mechanism, positioning device, contact, contact system, rotating shaft, handle and other components. The contact is in the insulating base, double breakpoint contact bridge structure, the moving contact is designed to automatically adjust to ensure the synchronization of on-off, static contact is installed in the contact seat. The use of CAM and bracket operation, control contact closure and disconnect.

Miniature circuit breaker, short for MCB, is one of the most widely used terminal protection appliances in building electrical terminal distribution devices. And this article shows the right selection of MCB based on its electrical parameters. The rated breaking capacity of MCB is the maximum short-circuit current value that can be broken without any damage to the circuit breaker. The miniature circuit breakers currently on the market generally have several rated breaking capacities, including 4.5kA, 6kA and 10kA according to the relevant technical data and design manuals provided by various manufacturers.

With the development of motorized spindle manufacturing technology, there are new requirements for spindle finishing and machining efficiency, and automatic tool change technology is bred.Because of its fast and efficient tool change, it is favored by machining users today with the rising labor cost. The high-speed automatic tool change device has become an important technology of machining center and an important index of high-level machining center. ATC spindle is also becoming more and more popular.

ATO provides popular three phase 0.35kW, 9kW and 12kW air cooled automatic tool change spindle motors at a low price. Low noise 3 phase 1.5KW, 1.8kW, 4kW, 5.5kW and 7.5kW water cooled ATC spindles are also provided. It is suitable for high speed and high-precision milling, drilling and tapping of CNC planer, wood carving/engraving machine, metal and non-metallic materials.

With the development of technology and rising labor costs, more and more enterprise factories are using automation, such as machining. The ATC spindle motor is also an integral part of machining. It brings great convenience to everyone and improves production efficiency, but at the same time, there are some problems. Let's talk about some common problems and solutions of automatic tool change spindles.

Optical fiber is a flexible transparent fiber made of extruded glass or plastic, slightly thicker than human hair. Optical fiber is the most commonly used means for transmitting light at both ends, and it is widely used in optical fiber communications. Optical fiber has longer transmission distance and higher bandwidth than wired cable. An optical fiber is usually composed of a transparent core with a low refractive index and a transparent cladding material. As an optical waveguide, the optical fiber causes total reflection of light in the core.

With the development of industrial technology, automatic tool changing spindle is widely used. Automation has gradually become the main form of enterprise production and processing. So, what should we pay attention to in use?

• ATC spindle motors and VFD should be used together. The specifications and parameter settings of the VFD should match the rated parameters of the spindle.
• When using, first check whether the air duct is blocked or not, and use compressed air to blow through it in emergency use.
• The cooling circulation system must be in normal operation before use. Do not use without cooling
• Water cooled motors must ensure that the coolant must be clean.

With the advancement of science and technology, various industries have higher and higher requirements for power supply reliability. Two power sources must be used to ensure the reliability of the power supply in many occasions. In the past, the users of the two way power supply used a manually operated two-way isolation switch on the low voltage side to perform the switch off operation, so misoperations often occurred and accidents were caused. With the improvement of power supply reliability requirements and the improvement of anti-accident measures, more and more advanced equipment has been put into application in the power supply system.

It is necessary to cool and dissipate the automatic tool change electric spindle, especially in high temperature. If you find that the electric spindle is overheated during the application process, then you should consider whether to take heat dissipation measures. Do not allow the electro-spindle to run in overheating conditions, which will affect the service life. ATO will introduce to you two cooling methods for spindle motors.

In level control and detection applications, the level of a tank or container will change at a continuous rate over a period of time. In order to know when a failure occurs or when levels become dangerously high or low, it is critical to have a level control monitoring solution in place to prevent costly damage and situations where water overflows or runs dry. The following mainly describes the functions of the photoelectric liquid level switch in the water tank or container.

Cable float switch is a commonly used water level controller. It has a simple structure, convenient installation and sensitive control. The following is the wiring and installation method of cable float switch for your reference.

The absolute value rotary encoder is a detector that can output the angle data within one revolution of the motor to an external target. Absolute encoders are generally capable of outputting 360° with 8 to 12 bits. There are many optical channel engraving lines on the absolute encoder optical disc, and each engraving line is arranged with 2 lines, 4 lines, 8 lines and 16 lines in turn, the shaft encoder obtain a set of unique binary codes (Gray codes) from the zeroth power of 2 to the n-1th power of 2.