In the field of industrial automation, SCARA robots with high payload and high inertia offer significant advantages in specific applications across industries such as lithium-ion batteries, 3C electronics, and automotive components—thanks to their cost-effectiveness and compact deployment. These robots are particularly well-suited for processes that demand heavy-load horizontal handling and assembly. To meet these needs, Zhongweixing under STEP has meticulously developed the YR series of heavy-duty, high-inertia SCARA robots. With their outstanding features of high stability, high precision, and ease of deployment, these robots provide robust support for enterprises seeking to upgrade their manufacturing operations toward greater intelligence.

Effectiveness value

Heavy-load high precision Inertial torque increased by 300%, repeat positioning accuracy improved by 100%, and payload capacity increased by 200%.

Infinite possibilities Highly modular structural design enables rapid customization for different application scenarios.

Industry empowerment Solving the challenge of heavy-object handling, boosting production efficiency by an effective 30%.

Heavy-duty, high-precision, and stable under demanding operating conditions.

The YR-series SCARA robots are heavy-duty, high-inertia four-axis robots that Zhongweixing has been gradually releasing since 2021. They feature high rigidity (in the rotational direction), high load inertia, and enhanced repeat positioning accuracy. These robots are ideal for applications such as handling and loading/unloading tasks involving eccentric heavy loads and requiring high end-effector rotation accuracy, as well as scenarios involving high reverse torque and downward clamping forces.

The YR series SCARA robots from Zhongwei Xing have significantly enhanced their key performance characteristics through structural optimization and independently developed core control technologies. These robots feature exceptional high rigidity in rotational direction and outstanding high-load inertia properties; the rated and maximum allowable inertia torques of the J4 axis have been improved by 300% and 120%, respectively. Meanwhile, the robot’s repeat positioning accuracy has been dramatically optimized, with XY-axis and Z-axis accuracies improved by 50% and 100%, respectively, providing a reliable foundation for high-precision operations.

YR Series SCARA – Load Inertia Comparison Demonstration

Infinite possibilities, modular design, flexible and effortless.

The Zhongwei Xing SCARA robot features an innovative, highly modular structural design that standardizes and modularizes core components such as the base, housing, and large and small arms. It supports rapid combination of different arm lengths and offers flexible adaptation to various installation methods, including upright, inverted, and side-mounted configurations. This enables the robot to swiftly meet customers’ customized requirements for arm reach and installation styles, significantly enhancing the flexibility of equipment deployment and the adaptability of application scenarios.

To meet the special requirements of long-stroke lifting and stacking applications such as packing and palletizing, Zhongwei Xing has expanded its YR-P series SCARA robots. This series features a structure with one to two auxiliary support rods installed alongside the lead screw. The Z-axis boasts a maximum effective stroke of up to 700 mm. By extending the lead screw to further increase the Z-axis stroke, the design significantly enhances both the structural rigidity and motion stability of the Z-axis. This innovative design effectively ensures high precision and reliability of the robot even under heavy loads and during long-stroke operations.

YR-P Series SCARA Robot

Apply real-world scenarios to solve the challenges of moving heavy objects.

The YR/YR-P series SCARA robots achieve breakthrough performance in high-load, high-cycle scenarios through structural innovations—such as reinforced auxiliary arms and modular design—and advanced algorithm optimization. Compared to belt-driven SCARA robots, they offer a load inertia capacity that is 200% to 300% higher. Moreover, they provide significant cost advantages and superior speed and precision compared to six-axis robots. These robots deliver automation solutions that combine reliability, flexibility, and cost-effectiveness, and have been widely adopted across multiple industries, including 3C electronics, lithium-ion batteries, photovoltaics, and automotive components.

Case Study – Scenario of Lithium-Ion Battery Cell Handling

Model used YR122040 Heavy-Duty SCARA

User pain points The workshop aisles are narrow and the types of materials vary widely, making it difficult for conventional equipment to simultaneously achieve high load capacity, high precision, and flexible adjustment.

Scheme advantages Load capacity: 35 kg; accuracy: ±0.03 mm; operating cycle time as low as 5 seconds, effectively boosting production efficiency by 30%.

YR Series SCARA Application Case – Lithium Battery Production Loading and Unloading

Case Study – Layout Planning for Photovoltaic Cell Production

Model used YR81030 Series SCARA

User pain points Traditional manual or semi-automatic production lines have independent processes that are poorly coordinated, resulting in long operation times and unstable cycle times.

Scheme advantages The eccentric load fixture has a length of over 1 meter and boasts a cycle time as fast as 3.5 seconds per batch. It offers flexible model changes and, when paired with visual positioning for precise pick-and-place operations, can replace 6-axis robotic systems—resulting in lower costs and a 100% increase in efficiency.

Case Study – Screw Fastening of Container Panel Boards

Model used YR81030 Series SCARA

User pain points Traditional manual operation using handheld electric screwdrivers is labor-intensive, inefficient, and highly dependent on human operators, leading to significant fluctuations in cycle time and making it difficult to meet the demands of high-capacity production lines.

Scheme advantages The locking mechanism is smooth and vibration-free, enabling rapid product changeovers, minimizing breakdowns, and requiring simple maintenance. It is well-suited for multi-variety, small-batch production.

YR Series SCARA Application Case – Container Lock Screw Fastening

Email:
market@stepelectric.com

Address:
No. 1560, Siyi Road, Jiading District, Shanghai Municipality