Brushless DC motor (BLDC) systems are the most preferred systems for the simple reason that they are cost-effective. The cost, which includes maintenance, downtime and costs related to energy requirements, is lower for these systems as compared to their brush type counterparts. The performance of any motor depends on the performance of its two components namely, motor and controller. This is particularly true for BLDC motors, in which BLDC motor controllers play a crucial part in determining its performance. Sinotech’s Brushless DC Motor Controller Design Sinotech’s aim is to provide clients with solutions that are tailor made for their requirements…
Steel Investment Casting Means Reduced Machining Time & More
Despite the fact that there are several different methods for the manufacturing of stainless steel, investment casting continues to survive the competition and exist in the market. Investment casting is an old metalwork technique and requires longer and more processes when compared to other recent metalworking techniques. Regardless of this, steel investment casting has managed to hold its ground because of its overpowering benefits. Reduction in Machining Time Steel investment casting makes use of moulds that exactly match the parts that are to be manufactured. As a result, the end product of the moulding process is a replica of the…
Stepper Motors & Preventing Step Losses
The biggest issue that surrounds the use of step motors and tarnishes its unlimited potential is step losses. However, such losses can be avoided and corrected. The operation of a step motor is best described as open loop. Although, the choice of the driver and motor are crucial, there are some other factors that can also result in the occurrence of step losses. Stepper Motors The selection of the stepper motor is based on a set of three rules. Firstly, the stepper motor must meet the torque/speed requirements of the application. Secondly, the safety factor of the motor concerned must…
Trends in Energy-efficient Brushless DC Motor Controller Design
Energy efficiency has become a vital judging criterion for products, from automotive machinery to home appliances. As a result, this aspect is considered in the development processes now, more than ever before. Although there is no absolute sure shot method to achieve this kind of efficiency, we present here the trends that have been noticed in recent past. Sensor-less Brushless DC Motors The use of sensor-less controls in brushless DC motors presents an excellent option, which is capable of delivering extremely high component power. However, there are positives and negatives of using this technology. While the use of sensor-less control…
Power Play: Radio-Controlled Models and the BLDC Motor [Infographic]
Gas-powered radio controlled vehicles have long been the norm among hobbyists, but advances in brushless DC motors have brought electric-powered models surging to the forefront. This Infographic explores brushless DC motor efficiencies, offers an intriguing timeline of RC vehicles and their uses, and looks at state of the model hobby industry.
Choosing Hazardous Duty Synchronous Motors & Stepper Motors
In the gear motor world, the two main types of motors are the AC synchronous motor and the DC stepper motor. Synchronous motors have a shaft that rotates at the same frequency as the supply current, so the supply current equals the number of AC cycles. The stepper motor is a BLDC motor whose full rotation is divided into an equal number of steps. The risk of hazards occurs when you use a constant-speed motor with a variable-frequency controller because it becomes potentially explosive. Synchronous Motor and Stepper Motor Hazards Explained The heat a synchronous or stepper motor produces when…
Importance of Quality Audits of Offshore AC Gear Motor Component Factories
When you need custom AC gear motors, perfection and quality are vital to the success of your product. Seeking an offshore solution is a common option that allows companies to reduce costs, but it comes with the risks associated with cultural and language barriers as well as inexperience. When clients seek an offshore solution for their AC gear motors, items from the DC motor catalog and other motor components, Sinotech always audits the factories it works with from beginning to end to ensure a successful offshore experience. The Components and Importance of a Quality Offshore Audit The best offshore auditor…
AC Gear Motor & Gearbox Selection Method
For mechanical designers and electrical engineers who develop applications, choosing the right AC gear motor can be a challenge. Decisions to make include whether to choose a pre-engineered item from a gear motor catalog or purchase the motor and gearbox separately. By understanding the gear motor’s applications and specifications, you can select the gearbox and AC gear motor that best fit your needs. Selecting a Gearbox Before you select an AC gear motor, you have to choose a gearbox that has the right torque and speed for your application. To help you make this determination, you need to know the…
Sinotech’s High-Quality Metal Stampings: Progressive Die Stamping, Automotive Stamping & More
Progressive die stamping is a metalworking technique that involves bending, punching, coining and modifying raw metal materials with an automatic feeding system. Metal stamping is a practice humans have used since the discovery of fire to make tools, coins, decorations and jewelry. As technology advanced through history, various industries started to use metal stamping techniques for their own applications. The auto industry, for example, uses automotive stamping to make vehicles and components. Progressive Die Stamping Process Metal stamping begins with sheet metal that machines, or dies, can form, bend, stretch and draw. The metal must have the ability to stretch…
Technological Advances in Investment Casting
Steel investment casting is a one of the oldest metal-forming techniques, dating back to the times of the ancient Egyptians and the ancient Harappans in India. Original investment casting techniques were performed using beeswax and clay, but today’s investment casting manufacturers use more sophisticated techniques to create smooth, intricate forms in less time. One of the most significant advances in investment casting is the creation of rapid drying chambers. These chambers reduce the time it takes to complete the layering process, which used to take several days. Because the new drying chambers allow the investment casting manufacturer to create layered…
