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Mining dump trucks with payload capacity of 32 metric tons are designed for transportation of rocks in severe mining conditions of deep open-pit mines, at open-cast mining of mineral deposits on technological haul roads under various climatic operating conditions (ambient temperatures from -50 to +50 degrees Celsius).
Engine power, kW
324
Curb weight, kg
55 700
Body volume, m³
14.5
Payload capacity, mt
32
General Specification
Application
Designed for transportation of loosened rocks in severe mining conditions of deep open-pit mines on technological haul roads under various climatic operating conditions. These trucks can be used in construction of large industrial structures and hydraulic facilities, and in construction of highway systems as well as in technological departments of the enterprises of processing industry. Depending on relative density of the transported materials maximal efficiency is achieved during operation with excavators and loaders with the following bucket capacity: 4-8 m³.
Payload capacity
32
33 short tons
Engine
Cummins QSX-15-C345
Engine power, kW (hp)
324 (435)
Transmission
hydromechanical
Gear range
5+2
Torque, N*m (rpm)
1992 / 1400
Specific fuel consumption @ rated power, g/kW*h
215
Tires
18.00R25
Suspension
Conventional for front axle and driving axle, with longitudinal and transverse rods. Air-hydraulic (oil and nitrogen) cylinders with built-in hydraulic shock absorbers; two cylinders per front axle and rear axle.
Driving axle
Mechanical with single-stage final drive with bevel gears with circle-arc tooth, straight bevel gear differential with four pinions, planetary hub drives with spur pinions.
Max speed, km/h
60
Turning radius, m
8.4
Brake System
Front wheels
dry single-disk brakes
Rear wheels
multiple-disk oil-cooled brakes
Parking brake
disk brake
Auxiliary brake
multiple-disk oil-cooled brakes
Body volume, m³
Struck
14.5
Heaped 2:1
19.2
Weight
Operational weight, kg
23 700 (standard equipment set)
Gross weight, kg
55 700
Terms and Model of Financing
Contractor Operations
Operating and Financial Leasing
Renting
The comfort and safety of operator's work is assured through comfortable cab.
Design of cab and body with protective canopy provides conformity with ROPS and FOPS safety requirements.
Diesel engines with electronic control and central switching-off impeller of cooling system provide high specific power and consequently high speed of dump truck when driving uphill, as well as high fuel efficiency.
To facilitate starting of the engine at low temperatures mining dump trucks are equipped with engine liquid preheater, which provides heating of diesel fuel and coolant at starting of the engine.
Long operating life of dump trucks is attained due to application of high-strength materials for frame and body manufacturing.
As a basis for the development of BELAZ-7544 series dump trucks, the direction was taken to improve the design of components and systems in order to meet the newly imposed international requirements for safety, ecology and ergonomics, as well as increase of the truck service life by at least 150,000 kilometers compared to the dump trucks BELAZ-7540 series, due to application of new design solutions for the frame, suspension, optimization of the design of components and systems with partial unification with dump truck series BELAZ-7540 and BELAZ-7545.
BELAZ-75440 is developed according to the classic 4x2 wheel formula. Significant structural changes were made to the suspension guiding apparatus, frame, and fender group. During the development several design flaws were eliminated taking into account the accumulated operating experience of BELAZ-7540 dump trucks.
The design of the dump truck is well suited for loading by both excavator and front-end loader.
Integrated hydraulic system, designed with application of unified elements, provides structural simplicity and minimal power loss.
Provides cooling of oil without application of radiator in the design.
Hydromechanical transmission allows to choose the optimal traction and speed mode of motion which makes it easy to drive the vehicle and ensures safety.
Torque converter reduces the dynamic loads in the transmission and provides stable operation of the engine during changes of the loads.
Automatic control system of hydromechanical transmission improves performance of dump truck, increases service life and reliability by maintaining the optimum operating modes.
Due to increased efficiency of the multiple-disk oil-cooled brakes and forced cooling system the average technical speed when driving on a slope is increased by 10...20%.
The response time of the multiple-disk oil-cooled brakes in the retarder mode is reduced by 4–5 times in comparison with the hydrodynamic retarder.
The nominal braking torque of the service and auxiliary brakes is increased.
Application of the multiple-disk oil-cooled brakes increases reliability of equipment and safety of operation.
Hydrostatic steering provides ease of control and high maneuverability of the truck.
Modern, progressive, innovative technical solutions for a number of units and systems are implemented on BELAZ-7544 series dump trucks.
The comfort and safety of operator's work is assured through comfortable cab.
Design of cab and body with protective canopy provides conformity with ROPS and FOPS safety requirements.
Pneumohydraulic suspension of mining dump truck with integrated hydraulic shock absorber in combination with the conventional system of the guiding apparatus provides high smoothness, performance, technical speed, lateral roll resistance and durability of dump truck components and comfortable working conditions for the operator.
The design of the hydrostatic drive eliminates mechanical feedback and ensures the rational placement of hydraulic devices on the chassis.
Pneumatic accumulators provide safe control in emergency situation.
Due to increased efficiency of the multiple-disk oil-cooled brakes and forced cooling system the average technical speed when driving on a slope is increased by 10...20%.
The response time of the multiple-disk oil-cooled brakes in the retarder mode is reduced by 4–5 times in comparison with the hydrodynamic retarder.
The nominal braking torque of the service and auxiliary brakes is increased.
Application of the multiple-disk oil-cooled brakes increases reliability of equipment and safety of operation.
Long operating life of dump trucks is attained due to application of high-strength materials for frame and body manufacturing.
Hydromechanical transmission allows to choose the optimal traction and speed mode of motion which makes it easy to drive the vehicle and ensures safety.
Torque converter reduces the dynamic loads in the transmission and provides stable operation of the engine during changes of the loads.
Automatic control system of hydromechanical transmission improves performance of dump truck, increases service life and reliability by maintaining the optimum operating modes.
Diesel engines provide high specific power and high speed of dump truck when driving uphill, as well as high fuel efficiency.
To facilitate starting of the engine at low temperatures mining dump trucks are equipped with engine liquid preheater, which provides heating of diesel fuel and coolant at starting of the engine.
Integrated hydraulic system, designed with application of unified elements, provides structural simplicity and minimal power loss.
Provides cooling of oil without application of radiator in the design.
Designed for operation in various climatic conditions, both on special technological roads and in off-road conditions.
The manufactured equipment is equipped with additional units and systems that expand the functionality and improve operational attractiveness. There are standard and optional equipment sets. The set of equipment depends on climatic zone of operation: it can be northern or tropical.
Fire-fighting system with remote actuation
Telemetering tire inflation control system
Centralized lubrication system
High-voltage line proximity alarm
Engine liquid preheater
Clear comparison
