Product Description
QY50KD is a classic 50‑ton K‑series truck crane for overseas heavy‑load hoisting jobs. It is fitted with five‑section U‑shaped high‑strength steel boom, optimized internal sliding block structure to reduce boom deflection under long‑radius heavy‑load working conditions. H‑type box‑shaped outriggers provide large supporting span to guarantee whole‑machine stability during.
The machine adopts mature dual‑pump flow‑confluence hydraulic system, realizing smooth compound movements and excellent micro‑motion control for precise component positioning. Powered by high‑torque diesel engine matched with reliable transmission assembly, max travel speed reaches 80 km/h and realizes good passing performance on complex road conditions.
Spacious enclosed operator cabin comes with air‑conditioning, wide‑view front windshield and ergonomic control layout, effectively lowering operator fatigue for long‑hour continuous work. The electrical system is upgraded with anti‑creep connectors for better dust‑proof and water‑proof performance, adapting to harsh overseas construction environments. Multiple safety modules including load moment limiter, outrigger monitoring, hook height‑limit protection and hydraulic counter‑balance valves fully satisfy international construction safety standards.
Product Advantages
Powerful Lifting Performance：50 t rated lifting capacity, 44 m five‑section U‑shape main boom, max lifting torque 2009 kN·m, max lifting height 58.1 m with jib, meets various heavy‑duty hoisting requirements。
Reliable Dual‑pump Confluence Hydraulic System：Smooth combined actions and fine micro‑maneuver, improves overall working efficiency for site operation.
High‑Strength Boom & Stable Supporting Structure：U‑shape high‑strength steel boom with anti‑deflection design; H‑type box outriggers with large span for stable lifting status.
Durable Chassis & Good Trafficability：Heavy‑duty four‑axle truck chassis, max travel speed 80 km/h, suitable for long‑distance transfer between different job‑sites.
Harsh‑Environment Adaptability：Upgraded waterproof and dust‑proof electrical connectors, stable performance under high‑temperature, high‑altitude and dusty construction conditions.
Comfortable Operating Cabin：Wide‑view windshield, air‑conditioning and human‑centered control layout, relieves operator fatigue during long shifts.
Complete Safety & Easy Maintenance：Full‑set safety protection devices; optimized pipeline layout, convenient inspection and lower comprehensive maintenance cost.
Technical Data Sheet
Item | QY50KD | Unit |
Max. Rated Lifting Capacity | 50 | t |
Max. Main Boom Length | 44 | m |
Boom Sections | 5 | ‑ |
Max. Lifting Height (with jib) | 58.1 | m |
Max. Basic‑boom Lifting Torque | 2009 | kN·m |
Overall Dimension(L×W×H) | 14030×2800×3630 | mm |
Total Travel Weight | 42200 | kg |
Engine Model | D10.38‑50 | ‑ |
Rated Power | 276/1900 | kW/(r/min) |
Max. Travel Speed | 80 | km/h |
Max. Grade‑ability | 42 | % |
Fuel Tank Volume | 350 | L |
Outrigger Span(Longitudinal×Transverse) | 6100×7100 | mm |
Product Applications
‑ High‑rise steel‑structure installation and large building component hoisting
‑ Municipal infrastructure, bridge and viaduct construction projects
‑ Factory heavy‑duty equipment disassembly, handling and relocation
‑ Highway engineering and large industrial park construction
‑ Medium‑heavy‑load hoisting for urban reconstruction works
‑ General heavy lifting and emergency rescue lifting tasks
Operation Guidelines
Pre‑operation Inspection Check engine oil, hydraulic oil level, tire pressure, outrigger structure, steel wire rope wear condition, hook safety latch and all safety alarm devices. Ensure no personnel stay inside working radius.
Site Preparation Park the machine on solid and flat ground. Fully extend four H‑type box outriggers with supporting pads to keep chassis horizontal. Lock outrigger safety mechanism. Strictly follow lifting‑capacity chart according to actual working radius and boom length.
Lifting Operation Start engine and warm‑up hydraulic system. Operate boom luffing, extension, slewing and hoisting slowly. Avoid sudden composite actions. Never exceed rated lifting load and prevent suspended load swinging. Take advantage of micro‑motion performance for accurate component placement.
Transfer Travel Fully retract main boom, secure hook and accessories, retract all outriggers. Confirm counterweight is firmly locked. Drive within speed limit, pay attention to road height‑limit and weight‑limit restrictions.
Post‑operation Maintenance Park on safe flat ground, retract boom and store hook properly. Shut down engine and complete daily routine inspection.
FAQ
Q1: What is the max lifting height of QY50KD?
A1: The maximum main boom length reaches 44 m; when fitted with auxiliary jib, the maximum lifting height can achieve 58.1 m.
Q2: What are the highlights of its hydraulic system?
A2: It adopts proven dual‑pump flow‑confluence hydraulic system. It realizes smooth compound actions and excellent micro‑motion control to improve site working efficiency.
Q3: What safety devices are equipped for QY50KD?
A3: Load moment limiter, outrigger monitoring system, hook height limit protection, slewing buffer and hydraulic counter‑balance valves.
Q4: What export shipping modes are available?
A4: New machine can be shipped by ro‑ro vessel or bulk carrier. Partial disassembly solution is available for container transportation based on customer logistics arrangement.
Q5: How about after‑sales support?
A5: Original spare parts, operation‑maintenance manuals and operation video guidance are supplied. Overseas authorized service networks cover multiple regions.
