What is an Electric Balancer?
An electric balancer is a handling device that uses servo motor power to lift heavy objects and manipulate them as if weightless.
This device instantly detects the weight of the suspended workpiece through coordinated control between load sensors and servo motors. Unlike conventional air balancers or electric chain hoists, it electrically compensates for inertia and friction. This allows operators to move loads weighing tens to hundreds of kilograms with just a light push of the fingertips.
Its high positioning accuracy, where the load stops precisely where released, offers significant advantages in precision assembly work. Furthermore, its ability to automatically maintain balance even when the workpiece weight changes contributes to improved work efficiency. As a next-generation handling device that simultaneously reduces operator burden and enhances productivity, its adoption is progressing in many manufacturing sites.
Applications of Electric Balancers
The primary applications of electric balancers are listed below.
1. Automotive and Transportation Equipment Sector
In automotive manufacturing, they are extensively used for assembling heavy components such as engines, transmissions, EV batteries, and seats.
The ultra-low-speed control and direct workpiece manipulation via the floating function enable smooth execution of tasks like fine bolt hole alignment and fitting delicate parts such as windshields, without damaging the product or vehicle body.
2. Metalworking and Machining Field
In metalworking operations, it is utilized for loading and unloading heavy workpieces onto/from machining centers and lathes.
Motor control suppresses impact shocks that often occur during chuck mounting, preventing damage to expensive equipment and fixtures while supporting precise centering operations. It is also widely adopted as a safety measure for moving heavy objects in high-temperature environments, such as casting and heat treatment processes.
3. Logistics and General Industry
In logistics warehouses and chemical/food factories, it is introduced for palletizing operations involving cardboard boxes, drums, and raw material bags.
Its high responsiveness, which keeps pace with the operator’s movements without delay, significantly reduces the accumulation of fatigue and the risk of back pain caused by frequent repetitive tasks. Furthermore, leveraging the characteristics of electric operation that produces no exhaust, its application is expanding to transport operations within cleanrooms requiring high cleanliness, such as pharmaceutical manufacturing and semiconductor-related fields.