Product Advantages
Superior Lifting Performance: 5-section high-strength steel boom (44m) provides 15% higher capacity than peers; outstanding performance at 25–44m boom covers all mainstream working radii.
High Efficiency & Precision: Twin-pump automatic flow-sharing control enables precise micro-movement; multi-stage buffer tech ensures smooth start/stop; load anti-disturbance system stabilizes slewing regardless of AC operation.
Strong Power & Mobility: 340hp 9L engine (1500N·m torque) delivers powerful traction; compact 2.65m width and 3.48m height easily pass bridges, tunnels, and rural roads.
Safety & Stability: H-type 4 outriggers (7.35m lateral span) with hydraulic locks prevent rollover; intelligent torque limiter and 3-color alarm lights ensure full-process safety.
Durability & Adaptability: Premium manufacturing and high-strength steel enhance fatigue resistance; multiple counterweight modes (5t/8t) allow flexible transfer with partial counterweight.
Technical Specifications
Item | Unit | Specification |
Model | — | QY50K5D-3 |
Max. Rated Lifting Capacity | t | 50 |
Max. Lifting Moment | kN·m | 1600 |
Main Boom Sections | — | 5 (U-shaped) |
Max. Main Boom Length | m | 44 |
Max. Lifting Height (with Jib) | m | 53 |
Operating Weight | kg | 50000 |
Overall Length | mm | 14155 |
Overall Width | mm | 2650 |
Overall Height | mm | 3480 |
Engine Model | — | Euro VI Standard |
Rated Power | kW/rpm | 251/2200 |
Max. Torque | N·m/rpm | 1500/1200–1800 |
Drive Type | — | 8×4 |
Max. Travel Speed | km/h | 90 |
Max. Gradeability | % | 45 |
Outrigger Span (Lateral) | mm | 7350 |
Boom Telescoping Time | s | 85 |
Product Applications
Building Construction: Steel structure installation, precast component lifting.
Bridge Engineering: Bridge girder hoisting, pier construction support.
Municipal Works: Street lamp/sign installation, pipeline laying, urban renovation.
Port & Logistics: Container/heavy cargo handling, dock equipment relocation.
Industrial & Rural Projects: Factory equipment installation, farm infrastructure construction.
Operation Guide
Pre-operation Inspection: Check engine oil, hydraulic oil, coolant, fuel, and urea levels; inspect boom, outriggers, and winch for damage/leakage; verify safety devices (torque limiter, alarm lights) function normally.
Site Preparation: Park on firm, flat ground away from power lines; fully extend H-type outriggers (7.35m span), level the chassis, and place support plates under outriggers.
Start-up & Test: Start engine and warm up 3–5 minutes; test hydraulic functions (boom telescope, luffing, slewing, winch) without load to ensure smooth operation.
Formal Operation: Follow the load chart strictly (no overload/slant lift); operate levers gently to avoid sudden movements; maintain safe distance from loads and personnel.
Post-operation: Retract boom/outriggers/winch in sequence; park safely, shut down engine, cut power, clean equipment, and perform daily maintenance.
FAQ
Q1: What is the maximum lifting capacity of QY50K5D-3?
A1: 50 tons (maximum rated).
Q2: How long is the main boom, and what’s the max lifting height with jib?
A2: 44m main boom; 53m max height with 9m jib.
Q3: What emission standard does the engine meet?
A3: Euro VI (environmentally compliant).
Q4: What’s the drive type and maximum travel speed?
A4: 8×4 drive; 90km/h max speed.
Q5: What’s the outrigger span for stability?
A5: 7.35m lateral span (H-type 4 outriggers).
Q6: What are the main advantages for urban job sites?
A6: Compact 2.65m width/3.48m height, precise control, and strong maneuverability in narrow spaces.
