Truck dump truck "Scania" - the most reliablemodern carrier of construction materials, including bulk: sand, cement, crushed stone. Downloadable materials can be very diverse in consistency and viscosity. The load capacity of the machine is 39 tons in the three-axis version and 45 for the four-axis version.
Eight-wheel dump trucks are mainly used in quarrying, for transportation of rock and other materials.
Kinds
Swedish Scania dump truck isfirst of all a car chassis, ready for further layout of various modules. The final superstructure may vary in body size and dimensions.
"Scania" - a dump truck (photos are placed inarticle), which was created using the most recent advances in the production of heavy trucks. The Swedish automobile concern is confidently leading in this area.
В настоящее время компания "Скания" выпускает два types of dump trucks - construction and career. The latter are more voluminous bodies. They also have inflated sides. The most modern versions are available with protective visors hanging over the cab.
Relevance
The most popular models of construction trucks -these are the “Scania” P380CB and the “Scania” P124CB. Experienced miners prefer to exploit the Scania G440NZ and Scania P420EHZ dump trucks in quarries as super-reliable, reliable machines.
Among the German "MANs", Russian "KAMAZ",French “Renault Trucks” Swedish truck “Scania” ahead in terms of comfort. The cabin of the car is equipped with everything you need, beds, air conditioning, refrigerator.
Scania dump truck: technical specifications
Weight and overall parameters of the model Р 380СВ:
- curb weight of the car - 13 610 kg;
- gross weight - 39 tons;
- body capacity - 16 cubic meters;
- the size of the front tires - 385/65 R22,5;
- rear tire size - 315/65 R22,5.
Power point
- Brand engine - "Scania" DC11.
- Type of engine - turbo diesel with intercooler.
- The total volume of cylinders - 10 640 cubic meters / cm.
- Torque - 1800 Nm when rotating 1300 rpm.
- Power - 380 liters. with.
Transmission 9-speed, manual, mark GR-905.
Career model G440
"Dump truck" Scania "for the transportation of rockyrocks has a particularly durable body. And if the Swedish company basically does not buy engines abroad, but installs motors of its own production on dump trucks, then with the bodies everything is different. The company "Scania" is bound to a Polish manufacturer by a contract for the supply of KH-Kipper dump bodies.
The bodies supplied from Poland are divided into two types: with a capacity of 16 and 20 cubic meters. Twenty-cubic mounted on a four-axle chassis, and a body of 16 cubic meters - on a three-axle.
Engine
On the dump truck "Scania" G440 (8 x 4) is installedpower unit DC13 102, 440 hp and a cylinder capacity of 11,880 cube / cm. The engine is equipped with a turbocharger and intercooler. The motor complies with the Euro-4 environmental standard and is equipped with a PDE power system and four-valve cylinder heads. The standard air filter of the engine is reinforced with a special “Cyclone” nozzle, which helps to completely eliminate dust particles. In the context of career development, double filtration is a prerequisite.
Lubricants are subject to strict standardization.materials used in the engines "Scania". It is believed that the quality of the engine oil depends on the durability of the engine. It’s hard not to agree. Both the manufacturer and the service company of Scania conduct thorough testing of both engine and transmission oils before sending them to petrol stations and service centers.
Operating parameters
The characteristics of “Scania” - dump trucks intended for construction and operation in quarries are presented below.
Engine mounted with gearboxGRSO925R, mechanical type, which have 12 forward speeds and two rear ones. The attractiveness of this mechanism lies in the presence of accelerating gear (12th), which immediately follows the direct (11th). The gearbox is equipped with a tracking device that optimizes the operation of the gearbox in difficult road conditions or at full off-road. Thanks to the system, the best gearshift algorithm is developed for the engine load. However, you can not rely only on automation, the driver must actively participate in the management of the truck.
Special attention was paid to optimizationbraking force when moving trucks on construction sites or in a quarry. Since the Scania tipper trucks have drum brakes on all wheels, it was decided to install a powerful R4100 retarder in the system, providing deceleration of the braking torque in the value of 4,100 units. These indicators indicate the effectiveness of the device. Thanks to him, the working brake system is unloaded. The use of an effective five-stage retarder significantly reduces wear pads.
Undercarriage reinforcement
Dump truck "Scania" with an increase in workloadson the suspension required strengthening of depreciation nodes. The front springs were reinforced with additional sheets, and the rear axles received, in addition to additional sheets, another anti-roll bar, which promotes a uniform distribution of the load over the entire rear bogie, which carries as many as 32 tons.
Modernization of the power unit
Currently, the company "Scania" conductedresearch work to increase the resource of the piston engine. Previously, premature wear of compression rings and cylinders forced the owners to overhaul the engine. Today, work is underway on chroming the inner surface of the cylinders. This is an extremely complex process, since the thinnest film of chromium must cover the cylinder's mirror evenly and remain intact for a long time. So far, the motor-builders of the company “Scania” have not achieved encouraging results, and the engine resource remains at the same level, however, still quite high.
