Accuracy: ±0.03 mm, Cycle Time: 74 s | STEP Arc Welding Workstation Reimagines the Efficiency and Reliability of White Body Assembly
2026-01-26
Today, as automobile manufacturing moves toward intelligence and flexibility, the efficiency and precision of welding assembly lines directly determine the quality of the body-in-white and the pace of production. Relying on cutting-edge technology, STEP provides highly efficient and reliable solutions for body-in-white welding, empowering manufacturing upgrades.
Featured Highlights
Precision hard metric: The robot’s repeat positioning accuracy is ±0.03 mm, ensuring consistently high-quality welding performance.
High production efficiency: The robots operate at high speed and with exceptional stability, achieving a line cycle time of 74 seconds. They support mixed-model production on the same line, enabling seamless model transitions.
High operational stability: MTBF is no less than 100,000 hours. Combined with a real-time diagnostic system, this helps boost overall equipment effectiveness (OEE) of the production line to over 98%.
High precision, high flexibility, and high stability forge the core productivity of welding and assembly.
The STEP arc welding workstation integrates five key modules: an industrial robot system, body-in-white fixtures, intelligent welding equipment, digital control systems, and safety protection features, thereby driving a comprehensive upgrade of welding and assembly processes toward greater intelligence and flexibility. At the heart of the workstation is a quartet of STEP SA12-2000H industrial robots, which serve as the core execution units. Thanks to their repeat positioning accuracy of ±0.03 mm, these robots can effortlessly meet the stringent welding requirements for critical areas of the vehicle body.
High precision, high flexibility, high stability
Facing the challenge of multi-model production on a single assembly line, this workstation leverages multi-robot cluster control technology and pre-planned paths to enable seamless model transitions, significantly enhancing the line’s adaptability and production efficiency. The robots’ joints exhibit outstanding performance and work closely with tooling fixtures, allowing them to consistently perform welding operations at high speeds and with exceptional stability. The entire line maintains a steady cycle time of 74 seconds, achieving a JPH (jobs per hour) rate of over 40, thereby providing strong support for automakers’ efficient production.
High production efficiency, high operational stability.
Meanwhile, the robot boasts an MTBF of no less than 100,000 hours and is equipped with a built-in real-time fault diagnosis system that continuously monitors critical parameters such as welding current and voltage. In the event of an anomaly, the system immediately triggers an alarm and provides maintenance recommendations, laying a solid foundation for the long-term stable operation of the production line and achieving high OEE.
Independently developed robots + deep system integration solidify the foundation of intelligent manufacturing technology.
The successful application of this workstation is attributable to STEP comprehensive strength in both robot body R&D and system integration. The SA12-2000H industrial robot from STEP, as the core equipment, features a highly rigid gear transmission design, delivering outstanding load-carrying capacity and shock resistance. The robot supports high-speed motion and high-speed welding, fully meeting the stringent takt time requirements of the main production line. Its key components have been localized nationwide, reaching internationally advanced technological standards and offering advantages in performance, cost, and supply chain.
STEP Robot SA12-2000H
Through a digital bus architecture, the PLC and robot control system achieve deep integration, enabling real-time optimization of welding parameters, one-click switching between multiple process models, and full-process production data traceability. This provides a complete technological closed-loop for intelligent production line management and consistent product quality.
Xiao Ao | Anchoring in intelligent automotive manufacturing, forging full-chain technology
In the automotive welding and assembly sector, where arc welding applications account for approximately 40%, STEPeng, leveraging its stable robot platforms and powerful control algorithms, together with the specialized integration capabilities of its subsidiary, Xia'ao (Shanghai) Engineering Technology Co., Ltd., continues to deliver solutions tailored to its customers’ needs. Efficient, precise, and flexible The welding and assembly solution.
Self-developed robots + deep system integration
STEP has always been focused on leveraging innovative technologies to drive the upgrading of the manufacturing industry. In the core process of white-body welding and assembly, we are committed to helping vehicle manufacturers continuously enhance their production value and market competitiveness through smarter, more reliable robotic products and solutions.
Contact Us
Email:
market@stepelectric.com
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No. 1560, Siyi Road, Jiading District, Shanghai Municipality