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Mining dump trucks with payload capacity of 90 metric tons are designed for transportation of rocks in severe mining conditions of deep pits, 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

Cummins

Engine power, kW (hp)

783 (1050)

Operating weight, kg

73 000

Body volume, m³

37,7 — 75

Payload capacity, mt

90

Characteristics
75570
75571

Metric system

American system

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: 12.5-18 m³.

Payload capacity

90

99 short tons

Engine

Cummins QST 30-C

Engine power, kW (hp)

783 (1050)

Transmission

hydromechanical

Gear range

6+1

Torque, N*m (rpm)

4630 / 1300

Specific fuel consumption @ rated power, g/kW*h

204

Tires

31/90-49; 27.00R49

Suspension

Pneumohydraulic, conventional for front axle and driving axle — trailing arms with central joint.

Rear axle

Mechanical with single-stage final drive, bevel gear differential and planetary hub drives.

Max speed, km/h

60

Turning radius, m

11

Brake System

Front wheels

dry single-disk brakes

Rear wheels

multiple-disk oil-cooled brakes

Parking brake

shoe brake

Auxiliary brake

multiple-disk oil-cooled brakes

Body volume, m³

Struck

37.7; 44.5; 75

Heaped 2:1

53.3; 60; 93

Weight

Operational weight, kg

73 000 (standard equipment set)

Gross weight, kg

163 000

Terms and Model of Financing

Contractor Operations

Operating and Financial Leasing

Renting

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: 12.5-18 m³.

Payload capacity

90

99 short tons

Engine

Cummins QST 30-C

Engine power, kW (hp)

783 (1050)

Transmission

hydromechanical

Gear range

6+1

Torque, N*m (rpm)

4630 / 1300

Specific fuel consumption @ rated power, g/kW*h

204

Tires

31/90-49; 27.00R49

Suspension

Pneumohydraulic, conventional for front axle and driving axle — trailing arms with central joint.

Rear axle

Mechanical with single-stage final drive, bevel gear differential and planetary hub drives.

Max speed, km/h

60

Turning radius, m

11

Brake System

Front wheels

dry single-disk brakes

Rear wheels

multiple-disk oil-cooled brakes

Parking brake

shoe brake

Auxiliary brake

multiple-disk oil-cooled brakes

Body volume, m³

Struck

37.7; 44.5; 75

Heaped 2:1

53.3; 60; 93

Weight

Operational weight, kg

73 000 (standard equipment set)

Gross weight, kg

163 000

Terms and Model of Financing

Contractor Operations

Operating and Financial Leasing

Renting

Competitive advantages
01
Braking System
02
Cab
03
Engine
04
Frame and Body
05
Hydraulic System
06
Hydromechanical Transmission
07
Steering
08
Suspension
09
Wheelbase
Braking System

The design of the truck uses multiple-disk oil-cooled brake gears of a new design providing:
-increased resource of the brake system;
-increase of the average technical speed of the truck when driving downhill by 10-20%;
-reduction of the response time of the multiple-disk oil-cooled brake in the mode of the retarder (compared with the hydrodynamic retarder);
-increasing the nominal braking torque of the service and auxiliary brakes.

Cab

The comfort and safety of operator's work are assured through comfortable cab.

Design of cab and body with protective canopy provides conformity with ROPS and FOPS safety requirements.

Engine

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, which significantly increases engine service life and ensures reliable operation of the system in various climatic zones, including the Far North.

Frame and Body

The long operating life of dump trucks is attained due to the application of high-strength materials for frame and body manufacturing.

Hydraulic System

The integrated hydraulic system provides optimum operating parameters as well as ease of maintenance and repair.

Hydromechanical Transmission

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 the performance of dump trucks, increases service life and reliability by maintaining the optimum operating modes.

Steering

Hydrostatic steering provides ease of control and high maneuverability of the truck.

Suspension

The best smoothness and, accordingly, the minimum dynamic load on the operator and the units and components of the truck.

Low dry friction.

The design of the suspension cylinders provides minimal labor and cost during maintenance and repair.

Wheelbase

The short wheelbase of the truck ensures high maneuverability.

Parts and components
Engine
Engine

Diesel engines with electronic control and central switching-off impeller of the 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, which significantly increases engine service life and ensures reliable operation of the system in various climatic zones, including the Far North.

Hydromechanical Transmission
Hydromechanical Transmission

Automatic hydromechanical transmission with six forward and one reverse gear 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.

The automatic control system of hydromechanical transmission improves the performance of dump trucks, increases service life and reliability by maintaining the optimum operating modes.

Suspension
Suspension

The best smoothness and, accordingly, the minimum dynamic load on the operator and the units and components of the truck.

Low dry friction.

The design of the suspension cylinders provides minimal labor and cost during maintenance and repair.

Hydraulic System
Hydraulic System

The integrated hydraulic system ensures optimum operating parameters as well as ease of maintenance and repair.

Braking System
Braking System

The design of the truck uses multiple-disk oil-cooled brake gears of a new design providing:
-increased resource of the brake system;
-increase of the average technical speed of the truck when driving downhill by 10-20%;
-reduction of the response time of the multiple-disk oil-cooled brake in the mode of the retarder (compared with the hydrodynamic retarder);
-increasing the nominal braking torque of the service and auxiliary brakes.

Steering
Steering

Hydrostatic steering provides ease of control and high maneuverability of the truck.

Cab
Cab

The comfort and safety of operator's work are assured through a comfortable cab.

The design of cab and body with a protective canopy provides conformity with ROPS and FOPS safety requirements.

Frame and Body
Frame and Body

The long operating life of dump trucks is attained due to the application of high-strength materials for frame and body manufacturing.

The performance, reliability and operational attractiveness of BELAZ-7557 series dump trucks is ensured by the use of highly efficient, economical engines of leading engine-manufacturing companies, modern hydromechanical transmission, efficient suspension, comfortable cab, powerful and reliable hydraulic system.

Equipment

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.

Standard Equipment :

Heating and air conditioning unit

Fire-fighting system with remote actuation

Loading and fuel control system

Telemetering tire inflation control system

Centralized lubrication system

Engine liquid preheater (except for tropical modification of dump trucks)

High-voltage line proximity alarm

Optional Equipment :

Body bottom plate lining

Clear comparison