CUSTOM HANDLINGSOLUTIONS THATKEEP YOURPRODUCTION MOVING.
At TONGLI, we design and manufacture handling manipulators, palletizing robots and automation equipment for factories, warehouses and production lines. Tailored to your load, materials and workspace, our solutions help reduce manual effort, improve handling efficiency and support dependable daily operation.
EXPLORE SOLUTIONS
GANTRY SYSTEMSBUILT AROUNDYOUR PRODUCTIONWORKFLOW.
From loading and unloading to material transfer, TONGLI develops gantry and truss handling systems for your production environment. We tailor the layout, working range and gripping solution to your materials, available space and operational requirements.
VIEW GANTRY SYSTEMS
ASSISTED LIFTING.FLEXIBLE HANDLING.PRACTICALAUTOMATION.
TONGLI assisted lifting manipulators help operators lift, position and transfer materials with less manual effort. Customized arms and gripping tools support different load shapes, workstations and handling tasks—bringing practical automation to your workshop.
VIEW MANIPULATORSElectromagnetic Gripper Manipulator
In the metallurgical and metal processing industry, electromagnetic gripper manipulators are an efficient solution for handling steel coils. Compared to traditional mechanical clamps, electromagnetic grippers offer significant advantages such as no extrusion deformation, high adaptability, and single-sided material handling.
Core Components
Electro-Permanent Magnet Chuck: The mainstream equipment uses electro-permanent magnet technology. It is energized only during the moment of adsorption and release, with the attraction force provided by internal permanent magnets during operation.
Advantages: Even in the event of a sudden power outage in the workshop, the workpiece will not fall, ensuring extremely high safety.
Assisting Arm Body: Commonly a rigid arm structure or a 4-axis/6-axis truss structure, used to counteract the weight of the magnets and the steel coil.
Adaptive Polar Position Design: The suction cup surface is typically designed with curvature or multi-polar combinations to adapt to steel coils of different diameters.
Core technical features and working principles
A. Magnetic Penetration Depth Control
The steel strip roll is made of multiple layers of thin steel strips wound together. The electromagnetic chuck has an “automatic magnetic permeability adjustment” function:
The system adjusts the magnetic field depth according to the thickness of the steel strip (0.3mm-3mm) to ensure that the suction penetrates enough layers for smooth handling, while preventing incomplete demagnetization or sticking during unloading due to an excessively strong magnetic field.
B. Magnetic Flux Monitoring System
A built-in magnetic flux sensor monitors the adsorption status in real time.
Technical Specifications
| Rated load | 100kg∼500kg |
| Adsorption/discharge speed | <1.0s |
| Remanence | <0.1% |
| Assist mode | Zero gravity global equilibrium |
Application Scenarios
Uncoiling/Rewinding Lines: Unload finished steel strip coils from the coiler and transport them to pallets.
Precision Strip Warehouses: Compared to mechanical clamps that can damage edges, electromagnetic suction protects the end-face integrity of high-value aluminum foil and stainless steel strips.
Stacking in Narrow Spaces: Electromagnetic suction requires no side clearance (unlike clamps which need space), enabling “wall-hugging” stacking, increasing warehouse space utilization by 20%.
TONGLI Automation Solutions
Choose the Right Solution for Your Application
From ergonomic lifting and vacuum handling to palletizing, machine tending and fully automated production lines, TONGLI provides reliable automation equipment for factories, warehouses and production environments.
Customized Automation for Your Workshop
Vacuum Lifting Solutions
Roll & Coil Handling
Automotive Assembly
Palletizing Systems
Intelligent Unloading
Gantry & Machine Tending
Integrated Automation
Tell us your material, load weight, workspace and production requirements. Our team will recommend a suitable automation solution.
Get Your Custom Solution
