Heavy-Duty AGV Chassis Steel Weldments

In the era of smart logistics, Automated Guided Vehicles (AGV) are the backbone of modern port operations. We specialize in the manufacturing of ultra-large AGV chassis steel weldments designed for heavy-duty container transport and autonomous navigation.

With lengths reaching 15 meters and a single-unit weight of 11 to 13 tons, our chassis provide the structural integrity required for high-frequency, autonomous port environments.

1. Premium Material Selection & Full Traceability

The reliability of a port AGV begins with the quality of the steel. We adhere to the most rigorous material standards to ensure long-term durability under extreme loads.

• High-Strength Steel: We utilize specialized automotive-grade structural steel (S700MC/ML) and wear-resistant steel (NM400).
• Tier-1 Sourcing: All raw materials are sourced exclusively from Shanghai Baosteel, following a comprehensive month-long qualification audit by European clients.
• Full Traceability: Every component is delivered with a Mill Test Certificate (MTC). We maintain strict heat number tracking to provide a 100% transparent material pedigree for every chassis produced.
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2. Advanced Manufacturing: 15m Large-Scale Bending & Welding

Building a 15-meter chassis requires massive industrial capacity and precision engineering.

Synchronized Bending Capacity

Using tandem linkage hydraulic bending machines, we possess the unique capability to precisely bend steel plates up to 15 meters in length, ensuring structural rigidity and reducing the number of welded joints.

Professional Welding Standards

Before production, we develop a comprehensive Welding Procedure Specification (WPS) for client approval. Our process includes:

• Submerged Arc Welding (SAW): Used for long longitudinal seams to ensure maximum penetration and strength.
• Expert Manual Welding: For intricate assembly points and structural reinforcements.
• All welding parameters and seam positions are strictly verified against your design drawings.

3. Rigorous Quality Inspection & Deformation Control

Large-scale weldments are susceptible to thermal deformation. We employ a rigorous “Check & Correct” workflow to guarantee precision.

Weld Quality & NDT Testing

Our quality control team performs detailed inspections to eliminate critical defects, including:

• Structural Integrity: Checking for cracks, porosity, and incomplete fusion.
• Seam Quality: Inspecting for undercut, slag inclusions, and improper groove preparation.
• Non-Destructive Testing (NDT): Comprehensive UT, MT, and PT testing as per project requirements.

Precision Correction

To counteract warping during the welding process, we utilize hydraulic straightening and controlled thermal correction. This ensures the final frame meets the tight tolerances required for autonomous sensors and steering systems.

4. Specialized Global Logistics

Due to the 15m+ dimensions, these units are shipped via Break Bulk Cargo rather than standard containers.

• Custom Cradles: We design and manufacture bespoke wooden and steel support structures to prevent shifting or impact damage.
• Protection: Enhanced coating protection to withstand the salty sea environment during transit, ensuring the product arrives “factory-ready.”