We customized an ESTUN robotic arm depalletizing machine for depalletizing and bag opening, equipped with a 3D vision camera. The client needs to open the packaging bags of zinc sulfate granules on their production line. Due to the soft material of the packaging bags, the stack tends to deform easily after the outer stretch film is removed. The client explicitly requested vision recognition capabilities. The existing product packaging and production line information are as follows:
Product name: Zinc sulfate granules
Packaging form: PP bag
Product specification: 25 kg per bag
Product/bag dimensions: 650×450×200 mm
Pallet dimensions: 1200×1000 mm
Stacking pattern: 5 pieces per layer, 12 layers in total
Total depalletizing height: 1300 mm
Based on the above basic information and the requirement to match the production line’s feeding speed, we recommended and customized the ER-180 robotic depalletizing and bag opening robot for the client, equipped with 3Dvision camera, a custom gripper (made of 201 stainless steel) and a hopper (made of 201 stainless steel). The robot parameters are as follows:
| Parameters | |
| Power supply/Power | AC 380V±/5% three-phase four-wire |
| Pneumatic Requirements | Grippers/Fixtures: 0.8 MPa, 0.3 m³/min
Suction Cups: 0.8 MPa, 0.6-1.1 m³/min Total air reservoir capacity >600 L |
| Dimensions | Overall height 3m, rotation coverage radius 2.8m, footprint 6×6 m² |
| Cable Length | 3m (from robot body to control cabinet) |
| Efficiency | 115 bags/hour |
| Power | Robot arm body: 15 kW |
The robotic arm depalletizing machine has been debugged and is ready for customer acceptance.
We Spin supply three mainstream palletizing robots: cartesian coordinate robots, column-type palletizer, and articulated robotic arms. For detailed information on the three palletizing machine types, click here: Automated Palletizing Solutions: A Complete Guide to Cartesian, Column-Type, and Articulated Robots
Articulated Robotic Arm: The Flexible and Intelligent Solution
Professional Design:
Mimicking the human arm, it is a multi‑joint, multi‑degree‑of‑freedom serial robot. Mainstream configurations include 4 axes (base rotation, upper arm swing, forearm swing, wrist rotation) and 6 axes (adding wrist pitch and yaw to the 4‑axis design). Some models specifically optimized for palletizing adopt a 5‑axis high‑rigidity design to simplify the structure and improve stability.
Motion Trajectory:
The working envelope is spherical, and the trajectory is extremely flexible and diverse. Through complex kinematics and trajectory planning algorithms (e.g., inverse kinematics solution), it can achieve arbitrary curved paths in space and adjust the end‑effector’s orientation. Modern systems also integrate AI vision for dynamic path planning.
Applicable and Common Scenarios:
Offering the highest flexibility, it is the first choice for handling multiple varieties and variable batch sizes of materials. It is especially suitable for industries such as e‑commerce logistics, home appliances, 3C electronics, and automotive parts. It can easily accomplish complex tasks like “mixed‑SKU depalletizing/palletizing” and, when equipped with collaborative systems, enables human‑robot collaboration.
SPIN – Professional Palletizing & Depalletizing Robots Solution Provider
We provide one-stop service from selection and planning to after-sales support. Contact me for a customized solution based on your materials and site!