Eight-Axis Sandblasting Robot (Nanjing Puzhen)
Time of issue:
Sep 15,2025
Project Background
As a core enterprise in China's rail transit equipment sector, CRRC Nanjing Puzhen Co., Ltd. demanded high-efficiency, precision, and eco-friendly solutions for vehicle component surface treatment. The SJman Series overhead crane-mounted eight-axis sandblasting robot by Hubei Sanjiang Boli has become critical equipment for bogie and carriage derusting processes.
Technical Highlights
1.Intelligent Path Planning
Employs 3D dynamic simulation to achieve millimeter-level coverage of complex contours (e.g., curved weld seams) with ±0.5mm repeat positioning accuracy.
2.Patented Protection System
Features angled protective housing (Patent CN 221774269 U) reducing steel shot rebound velocity over 60%, significantly enhancing equipment durability.
3.Eco-Performance
Integrated pulse-jet dust extraction maintains <4mg/m³ particulate concentration and <82dB noise levels, fully compliant with GBZ 2.1-2019 occupational health standards (OSHA equivalent).
Application Results
Efficiency promotion: Daily throughput reaches 120 m² per unit.
Cost Optimization:
∙ 30% reduction in abrasive consumption
∙ ¥500,000+ annual maintenance savings
Quality Assurance: Consistently achieves Sa2.5 surface cleanliness (ISO 8501-1), creating ideal substrates for coating.
Noted as a Smart Transformation Demonstration Project within CRRC Group, with the technical solution extended to high-speed rail, subway, and multiple rolling stock production lines.
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