20~40 Ton Class | Ultra-Heavy Cart + Hydraulic Online Test + Quick-Change Drum Hoist
Dump trucks need a hydraulic lifting system. Mixer trucks need a drum and gearbox. Mining trucks are so large they exceed standard line capacity. The biggest challenge is compatibility between these three types on a single line.
Ultra-heavy carts handle 20 to 40 tons. The dump truck section performs hydraulic system pressure testing online — extend the cylinder to full stroke and check pressure retention — no separate test area needed. The mixer drum is handled by a 10-ton balanced spreader beam. Different drum sizes are swapped via quick-change hoist tooling in under 15 minutes.
Mining trucks require a dedicated widened station with independent lifting equipment and high-torque hydraulic wrenches (1,000 to 5,000Nm).
Annual production is typically 2,000 to 10,000 units. High automation is not justified. Mechanized work is concentrated in lifting and hydraulic testing.
Technical Specifications
Applicable Models: Dump trucks, concrete mixer trucks, and mining trucks — 20–40 ton class; three distinct vehicle types on one flexible line; annual production 2,000–10,000 units.
Line Layout: Ultra-heavy floor rail cart (20–40 ton capacity); dump truck section with online hydraulic pressure testing; mixer truck section with 10-ton balanced spreader beam for drum handling; dedicated widened station for mining trucks with independent lifting equipment.
Core Equipment: Hydraulic pressure test system for online dump cylinder testing (extend to full stroke, check pressure retention — no separate test area needed); 10-ton balanced spreader beam for mixer drum lifting; quick-change hoist tooling for different drum sizes (changeover <15 minutes); high-torque hydraulic wrenches (1,000–5,000Nm) for mining truck fastening.
Key Technical Features: Three vehicle types (dump, mixer, mining) accommodated on one line with quick-change tooling — drum hoist changeover under 15 minutes for different drum capacities. Dump truck hydraulic system tested online at full stroke without moving to a separate test area. Mining trucks require a dedicated widened station due to their extreme size and weight. High automation is not justified at this production volume; mechanised work is concentrated on lifting and hydraulic testing.
Production Metrics: Annual capacity 2,000–10,000 units; cart capacity 20–40 tons; drum hoist changeover <15 minutes; hydraulic wrench range 1,000–5,000Nm; dump cylinder pressure retention test performed online.
