How does Luyi Vehicle ensure custom semi-trailers comply with local road transport regulations in different export countries?

Luyi Vehicle issues technical drawings and component BOMs through a structured evaluation process before steel fabrication begins.

Workflow:

• Specs intake: Buyers provide payload capacity, fifth-wheel height, dimensions, kingpin position, and operating road conditions.
• Layout drafting: Engineering prepares 2D CAD drawings showing axle spacing, main-beam profile, kingpin offset, and clearances.
• BOM compilation: Technical teams draft the component matrix, specifying steel grade (e.g., Q345B, T700), axles, suspension, and tyres.
• Review and sign-off: Clients review specifications, request adjustments, and freeze drawings as the production baseline.

Drawing turnaround time and BOM scope vary by project (to confirm with Luyi Vehicle technical engineering).

As a semi-trailer manufacturer in China, Luyi Vehicle controls quality at every stage of production. Raw materials — steel plates, axles, suspensions, brakes and landing gear — are verified against mill certificates before entering the line. Chassis cutting and assembly are carried out on jigs to keep dimensions within drawing tolerance, and all load-bearing welds are made by certified welders, then inspected visually and non-destructively. After shot blasting, each unit receives epoxy primer and polyurethane topcoat, with film thickness checked at every coat. Our trailer factory runs axle alignment, bolt torque verification, brake air-tightness and braking tests, electrical checks and a full road test on every unit before shipment. A photo and video inspection report is sent to the buyer before loading, and third-party inspection — SGS, BV or your own QC team — is welcome at any stage.