A Spring Balancer Manipulator is a specialized lifting tool designed to make heavy loads feel nearly weightless. Think of it as a “mechanical exoskeleton” for your arms, allowing you to move heavy parts with precision and minimal physical effort.
The system uses a calibrated spring mechanism to counteract the force of gravity. By matching the upward tension of the spring to the downward weight of the object, the load reaches a state of neutral buoyancy.
The Balancer: A housing containing a coiled spring and a conical drum. The conical shape is clever—it ensures that the tension remains constant even as the cable extends or retracts.
The Manipulator Arm: Often a rigid, articulated arm that provides stability and prevents the load from swinging (unlike simple wire-rope balancers).
The End Effector: The “hand” of the machine. This can be a hook, a magnet, a vacuum gripper, or custom mechanical jaws tailored to the specific part being moved.
Ergonomics: It eliminates the risk of repetitive strain injuries (RSI) and back pain for operators.
Zero-Gravity Feel: The operator can move the load up or down with just a few grams of “finger-tip” force.
Safety: If the operator lets go, the arm stays exactly where it is rather than crashing to the floor or snapping upward.
Precision: Because you aren’t fighting the weight, you can align parts (like a car door or an engine block) with extreme accuracy.
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.