Smooth start while carrying stones! A conveyor starter that eliminates the need for fluid couplings.
Gradually control the voltage and smoothly accelerate to full speed in about 6 seconds even with stones loaded! It eliminates the maintenance hassle associated with fluid joints, such as oil changes and leak inspections.
This is a case where a high-pressure motor and fluid coupling were upgraded to a low-pressure 55kW motor and starter (VT Star) in the underground belt conveyor of a limestone mine. By gradually increasing the voltage and slowly accelerating, the system can smoothly reach full speed in about 6 seconds, even from a heavy load of stones. Please consult us about upgrading machines that need to be moved while loaded, such as belt conveyors and bucket elevators, or equipment using fluid couplings. 【Overview of the Implementation Case】 A usage case in a belt conveyor that transports stones mined in a limestone mine. ■Problem: We want to reduce the burden of oil replacement and inspection for the fluid coupling. There is a need to restart from a heavy load of stones, but there are concerns about the impact on the machinery and belt due to sudden starts and slipping. ■Implemented Equipment and Response: Replaced the conventional 3,000V motor and fluid coupling with a 200V motor and VT Star, applying control to gradually increase the voltage and accelerate slowly. ■Results: Smoothly reached full speed in about 6 seconds from a heavy load of stones (about 2.5 seconds when empty) without a fluid coupling. The need for coupling oil replacement and oil leak inspections was eliminated, and the voltage drop during startup was suppressed to about 7%.
basic information
We recommend the soft starter α-Beat for current low-voltage (200V・400V) motors. It allows for precise adjustments in how the starting voltage is increased, making it easier to tailor the settings to the machine or site. *We provide a drive system that can start with the minimum necessary power capacity as much as possible according to your usage conditions. For more details, please refer to the materials. Feel free to contact us with any inquiries.
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We provide a drive system that can start with the minimum necessary power capacity as much as possible according to your usage conditions. For more details, please refer to the materials. Feel free to contact us as well.
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We are the only manufacturer in Japan specializing in starters, researching, developing, and producing soft starters, proposing solutions to various troubles that occur when starting stopped motors and machines by reviewing the starting methods. As measures to prevent voltage drops on the power supply side, to reduce the capacity of private power generation systems, to prevent damage caused by stress during machine startup, to avoid startup congestion due to insufficient torque, and as energy-saving measures for frequent repeated startups, we have prepared models tailored to each situation. Furthermore, even in situations where it is difficult to find a solution with the current product lineup, we aim to resolve issues by developing and designing the optimal starter for the specific characteristics through engineering work as needed. Please feel free to consult us; we will not only sell starters but also propose the best solutions.