The image shows a rigid-arm assisted manipulator arm used in the automotive manufacturing industry, primarily for handling and assembling large workpieces such as car doors.
This equipment significantly improves production efficiency and operational safety by assisting human operation with a manipulator arm.
Key Features and Advantages:
1.Labor-Saving Operation
As the video title suggests, the installation of a car door, which previously required four people, can now be easily completed by one.
The equipment’s built-in balancing system offsets most of the workpiece’s weight, requiring minimal effort from the operator to control its movement.
2.Flexible Control
A key feature is the steering wheel-style controller held by the worker in the image.
It allows for 360° rotation of the workpiece, facilitating the adjustment of the car door to the optimal installation angle for precise positioning.
3.Safe and Efficient
The equipment is typically equipped with multiple safety devices, such as power failure protection and overload protection, effectively preventing accidental falls.
Compared to purely manual handling, it significantly reduces worker fatigue, avoids workplace injuries caused by prolonged heavy lifting, and simultaneously improves work efficiency.
Working principle:
This type of manipulator arm is typically driven by a pneumatic or electric system. Through built-in sensors and a sophisticated mechanical structure, it achieves “zero-gravity” levitation and flexible handling of heavy objects. It is widely used in various industries that require the handling of heavy objects, such as automotive, home appliances, and logistics.
Based on the product information, usage conditions, installation site environment, and layout provided by the customer, we provide customized solutions for free.

All accessories have passed factory testing and meet specifications, enabling continuous and unobstructed operation.


For complex on-site conditions or special workpieces, Tongli can provide on-site investigation and measurement services to make appropriate solutions.
Having a professional equipment installation team, with excellent skills and tools, we provide fast and reliable robotic arm installation services.