A Mexican automotive integrator eliminated guideway deflection under 800 kg load and improved weld quality by 40% using Dongfeng's HGR45 heavy-duty guideway rails with C2 preload.
Customer Challenge
An automotive assembly line integrator in Mexico required heavy-duty linear guideway rails for a robotic welding station handling car body frames weighing up to 800 kg. The existing guideway system showed deflection under heavy load, causing inconsistent weld seam quality and requiring frequent recalibration of the robot's positioning system.tem.
Dongfeng Solution
Dongfeng supplied HGR45 heavy-duty guideway rails with H-grade accuracy and C2 heavy preload class, rated for 68.6 kN dynamic load and 112.4 kN static load. The rails were manufactured in 3000mm lengths with precision-ground mounting surfaces to minimize installation deflection. Load test certificates and deflection measurement data under simulated 800 kg payload were included with the shipment.
Results & Valuealue
The HGR45 guideway rails eliminated measurable deflection under the full 800 kg load, and weld seam quality consistency improved by 40% based on the customer's automated inspection data. Robot recalibration frequency was reduced from weekly to quarterly. The customer upgraded all 4 welding stations in the line and reported a projected ROI of 8 months on the guideway upgrade investment.ent.
Key Specifications
- Product: HGR45 heavy-duty guideway + HGH45CA slide block
- Accuracy: H grade
- Preload: Class C2 (heavy)
- Dynamic load: 68.6 kN
- Static load: 112.4 kN
- Rail length: 3000mm
- Batch size: 48 sets
- Certification: CE, ISO 9001