QY50KS truck crane is one vehicle type specially used in Russian area launched by our company. On the basis of classic and mature K series products, QY50KS truck crane installs system heating facilities, and thus strengthening its low temperature adaptability and making it better satisfy area's special use requirements. Meanwhile, It configures European IV engine and can satisfy discharge standard requirements in Russian area.
QY50KS applies four-axle chassis, five-section U shape cross section boom, and double-cylinder plus ropes telescopic system with inner covered independent winch and inner meshed rotary mechanism. Load sensitive system applies open constant displacement pump and variable displacement motor. Computer integration control technology supports multi-work condition detection function, making its usage more safe. QY50KS has a broad working radius, strong lifting performance, and its usage is more convenient, safe and reliable.
1. Advanced lifting boom technology
It applies five-section telescopic boom, optimized U shape cross section, high intensity steel plate, and boom's lifting performance is always in the leading position in the same filed at home. Advanced built-in boom head decreases torsion, side bending, and point contact or line contact between sliding block and boom during hoisting process; plug-in sliding block increases boom's valid lapping length and can prevent part's losing stability phenomenon effectively. Specialized telescopic technology improves active safety of telescopic system.
2. Excellent welding technology for structural members. Welding robot with advance process used for key welding make reliable quality products.
3. Main and auxiliary hoisting mechanism
Reducer is inner covered two-stage planet reducer with compact structure and good performance. Normally engaged brake has a high reliability and working efficiency; Double-pump confluence and high pressure automatic variable displacement motor can promote lifting speed effectively, increase working radius and realize low speed with heavy loads and high speed with no loads.
4. Swing system
It applies planet reducer and special backpressure technology, and thus improves system rigidity and removes swing vibration problem effectively, ensuring smoothness and reliability of swing.
5. Safety protective unit
It installs load moment limiter, and matrix liquid crystal colorful display with temperature control and back light function which can display crane operation parameters in the form of words and diagrams clearly and visually, making various working conditions clear at a glance; it configures overload and over-wind protection device; it installs safety units such as height limiter, safe direction detection and etc; its lightening device helps its work at night.
6. System configuration for extremely cold areas
1）Engine system：
Engine oil and water separator adds electric heating function to ensure the smoothness of oil circuit.
2）Liquid heating system：
Make use of heater's heat exchange function to heat engine coolant, fuel oil and hydraulic oil, solving system abnormal work due to water temperature too low, fuel oil wax precipitation and hydraulic oil thickness in cold environment, and improve products' adaptability scope with the lowest temperature arriving at -35℃.
3）Two cabs：
It applies new(with sleeper and frost relieving mouth) type cab's main structure, and improves driving cab's seal and warm wind performance, satisfying users' warming requirements in cold areas. At the same time, it promotes driving cab's sound insulation and noise reduction performance by adding sound insulation cotton, felted wool, asphalt slab and etc, and provides a quiet driving condition for users.
It adds stereoscopic sending wind path and air conditioner's heating power in the driving cab to adapt low temperature requirements in Russian area.
7. It adds ABS anti-lock unit; reserve GPS connector; tire, lamps, glass and etc apply products with E-mark identification to satisfy Russian area's certification requirements.