China Yuejin 3 Ton LHD 4X2 Platform Type Road Wrecker Truck

A tow truck (also called a wrecker, a breakdown truck, recovery vehicle or a breakdown lorry) is a truck used to move disabled, improperly parked, impounded, or otherwise indisposed motor vehicles. This may involve recovering a vehicle damaged in an accident, returning one to a drivable surface in a mishap or inclement weather, or towing or transporting one via flatbed to a repair shop or other location.
A tow truck is distinct from a motor carrier that moves multiple new or used vehicles simultaneously in routine transport operations.
Specifications of vehicle:

Model:MD5071QZCOverall dimension (mm):7388x2300x2265Curb vehicle weight(kg):4515Rated Payload(KG)2835Gross vehicle weight(kg):7350Approaching/ departure angle(°):19/13Wheelbase(mm):3308Tire Size:7.00-16 8PRMax speed (km/h)105

Technical parameter of chassis

As the bearing base of the vehicle, the chassis is the most important bearing part. Solid frame type girder & through -type riveting structure is adopted. So it is of unique shape, optimized structure and stronger bearing capacity.

Cab:Non bearing type, single ,tilting cabclutch:Single,dry,diaphragm typeGearbox:IVECO 2830.5, Manual,5 forward and 1 reverseGear ratio:4.994,2.598,1.522,1.000,0.777,R:4.506Steering:Power steering, recirculating ball steering gearsuspension :Leaf spring ,(Qty of layer: FR/RR 8/8+9)Service brake:Air brakeParking brake:Central drum type

1.Service brake is dual circuit hydraulic drum type or front disc+ rear drum (braking force is automatically controlled). And parking brake is of manual central drum type. 4 channels and 4 wheels independent control ABS is also adopted.

2.The front axle is I-shaped section, fist-end type & the rear axle is integral type, final drive of the rear axle is of 5.375. And front & rear suspension are all leaf spring (8/8+9).

II:Power system
The truck is equipped with high-performance SC28R125Q5A engine which can meet the EURO V emission standards. The fuel consumption per 100 kilometers is reduced by 4L, and the power coverage is 101~143Ps. BOSCH is a high-pressure common rail system customized for the R series, 1600 bar fuel injection pressure; Precisely controlled multiple injections and vertically arranged fuel injectors, uniform atomization and complete combustion.
Engine parameter:

ModelSC28R125Q5ATypeDiesel, 4-cylinder, in line, water cooled, direct injection, turbocharged, intercooler, high pressure and common railDisplacement (CC)2776Max. Power(kw/rpm)92/3000Max. Torque (N. M/rpm)340/1600-2400EmissionEuro V

Engine features:
Intake mode
1. Each cylinder is equipped with a four-valve aluminum alloy cylinder head, a dual overhead cam system, a small volute FGT turbo charger, or an electronically controlled variable section turbo charger VGT, which can increase engine torque and improve dynamic response, and the maximum torque reaches 340N.m.
2. Strong power and good adaptability to different working conditions. Low fuel consumption and low operating cost.
Design features
1. Low weight and high loading capacity.
2. Refer to international first-class engine standards and apply the GPDP product development
3. Low noise, low vibration and comfortable driving.
4. Timing belt drive, low vibration, the noise is 3dB(A) lower than the same types; Roller rocker arm reduces engine height and friction losses; Hydraulic push rod ensures that valves and rocker arm are in good contact without space.
High reliability
1. Adopt tunnel-type enclosed block structure design makes the engine is of rigidity. Pistons with internal cooled oil chamber are adopted to reduce the heat load, the position of the cracking connecting rod is reliability, and the forging crankshaft is fatigue resistant.
2. Automatic production and assembly line customized for R series by international first-class equipment manufacturers such as GROB. And it is controlled by MES system.
3. Running under SPS system being made according to German Volkswagen manufacturing standard, products are of good consistency and high reliability.
III:Cab-humanized design
1. The technology of the cab is exquisite, the streamlined body design is elegant and generous, and the drag coefficient is further reduced;
2.Panoramic large curved laminated windshield,which makes more safety;
3.The cab can be titled over which is very convenient for the maintenance.

Upper part

Platform mechanism description :

Platform mechanism:Platform size(mm): 5500*2300working stroke of platform(mm):2980Minimum inclination of platform(°):8°Maximum load of platform(kg):5000Maximum tension of winch 4000Diameter of wire line(mm)11Length of wire line (m):25Lifting mechanism:
effective length of arm (m):1300Rated lifting capacity(kg):7300Max lifting capacity when drag arm is fully extended(kg):2000Max lifting& towing capacity(kg):3000

I: Platform system
As for platform,it adopts oil cylinders driving sliding rail type structure.It is made of Q345 high strength steel plate with reasonable structure.The surface of the platform adopts punching plate technology which not only reduces dead weight bus also facilitates the use of tools like bangdage.
II:Lifting system
Lifting system is driven by internal & external telescopic type oil cylinder made of Q345. And it has advantages like large lifting force and stability under the condition of strength. The working model is as follows: When the cylinder low down the lifting arm, the telescopic arm extends until the front bracket of the swinging arm reaches the lifting position of vehicle. And then place the rear bracket and insert the plug, tie up the lifting arm with towed vehicle by bandage. And with the contraction of oil cylinder, the vehicle is lifted.
III:Operation mechanism
The towing truck is mainly controlled by the hydraulic system and torque is the transferred by the PTO, connects with gear pump, and finally connects to each pipeline. And it is controlled through multiple directional valve. Also balancing valves and hydraulic locks is provided in the hydraulic pipelines.

IV:Hydraulic system
The towing truck is mainly controlled through hydraulic system and the torque is the transferred by the PTO. POT is connected with gear pump, and it finally connects to each pipeline. multiple directional valve, Balancing valve and hydraulic locks are provided in the hydraulic pipelines.
With features like small size, compact structure and high transmission efficiency, hydraulic winch is often used in the lifting and towing fault vehicles or accidents. It can be considered as a necessary component of rescue trucks.
V. Auxiliary tools
Tow truck is a special operation vehicle, so it is equipped with a full set of professional accessories to meet needs of various types of obstacle operations.Also these accessories are important guarantee of safe and fast operation. Part of accessories like below:
VI. R&D
With the increasing purchasing power of the people,more and more luxury cars have come into people's life. However, most luxury cars chassis is relatively low. Which puts forward higher requirement for the transport.
In order to meet the needs of marker development,the whole floor type tow truck is developed. And the model already been widely used in domestic cities.