Machine-side Control Box

When many enterprises use large-power and heavy-load motors such as crushers and ball mills, they often encounter a dilemma: the star-delta starting torque is insufficient, making it impossible to start the heavy-load equipment and unable to achieve normal startup; although the frequency control cabinet can meet the requirements, it is expensive and, for scenarios that do not require speed adjustment but only heavy-load startup, it is undoubtedly a waste of cost. The Machine-side Control Box has emerged, precisely matching the starting requirements of large-power heavy-load motors, and taking into account both starting performance and cost control.

Technical Specifications

What are the key selling points?

As an exclusive starting device for ultra-high power heavy-duty motors, the Machine-side Control Box offers several advantages that directly address the practical pain points of actual usage:

Self-coupled voltage reduction, halving the impact of grid surges: Equipped with high-quality self-coupling transformers, it can precisely reduce the starting current to 1/4 of the direct start, which is even lower than 1/3 of the star-delta start, significantly reducing the impact on the grid during startup and avoiding interference with the normal operation of other equipment. It is suitable for the long-term stable startup of various ultra-high power motors.

High torque starting, easy to start heavy loads: The starting torque can reach 60% of the direct start, far exceeding the torque of the star-delta start. For heavy-load equipment such as crushers and ball mills, it completely solves the problem of the star-delta start being unable to move, ensuring smooth startup and sufficient power, and ensuring that the equipment can be quickly put into operation.

Wide power adaptation, broader coverage: The rated power can be adapted from 15kW to 800kW, and customization is supported. It is larger than the power range of the star-delta start control cabinet, perfectly covering various ultra-high power heavy-duty motors. Whether it is small heavy-duty equipment or large industrial units, it can be precisely matched.

Multiple protections, stable operation and more worry-free: Integrated with multiple protection functions such as overload, overcurrent, overvoltage, undervoltage, and overtemperature, it can monitor the operating status of the equipment in real time. Once an abnormality occurs, it automatically stops the machine and protects the motor and self-coupling transformer, reducing the risk of equipment damage and lowering the cost of later maintenance. The operation is more reliable.

A cost-effective choice with a 50% price reduction: Compared to frequency conversion control cabinets, the price is directly reduced by 50%. There is no need to spend a large amount of money on redundant speed regulation functions. It is only optimized for heavy-load starting requirements, allowing purchasers to obtain a more suitable starting solution at a lower cost and significantly save the procurement budget.

Structural Design Advantages

Junray Electrical has been deeply engaged in the research and production of starting equipment. It adheres to delivering professional quality to buyers. Every detail of the Machine-side Control Box has been meticulously refined, balancing practicality and durability. It is equipped with a high-quality auto-coupling transformer, and the core components are of excellent quality, ensuring stable voltage reduction starting and sufficient torque; it is also equipped with an accurate time relay, which can automatically switch the starting mode without the need for manual intervention, ensuring accuracy and reliability; a dedicated heat dissipation channel design quickly removes the heat generated by the equipment operation, preventing component aging due to overheating; the standardized wiring process separates the power and control circuits, is horizontal and vertical, facilitating maintenance, and complies with electrical safety standards.

What are the practical application scenarios?

Thanks to its excellent startup performance and wide adaptability, the Machine-side Control Box has become the standard startup equipment for various ultra-high-power heavy-duty motors, precisely adapting to multiple industrial scenarios. In the crushing machine scenario, it is suitable for heavy-load startup of ultra-high-power crushing machines, providing sufficient power and smooth startup; in the ball mill scenario, it can easily drive the heavy-load startup of the ball mill, solving the problem of insufficient power in star-triangle startup; in the high-power water pump scenario, it is suitable for heavy-load startup of ultra-high-power water pumps, ensuring the stable operation of water supply and drainage systems; in the high-power fan scenario, it is suitable for startup of ultra-high-power fans, reducing grid impact and ensuring smooth operation of the fans, fully meeting the industrial heavy-load startup requirements.

Immediate Purchase

Select a compatible, reliable and cost-effective heavy-duty motor starting device to be the key to reducing costs and improving efficiency. The Machine-side Control Box is developed and produced by Junray Electrical. It ensures quality, offers prompt delivery and has excellent after-sales service, perfectly addressing the pain points of difficult heavy-duty motor starting and high costs. Don't hesitate. Contact us immediately to secure the cost-effective Low-Voltage Distribution Box, making the starting of super large power heavy-duty motors smoother and the operation more reliable.