Standard hydraulic breaking hammers are widely used for crushing oversized blasted
materials and concrete structures demolition in industry. These hammers, installed in on …

Energy has now turned out to be one of the key factors for competitiveness and economic
growth across the globe. In this line, the manufacturing industries have been acknowledged …

Powered roof support is equipped with a hydraulic control system to ensure its required load
capacity. The main problem arising from powered roof support during exploitation is …

The paper discusses the results of a study carried out to determine the thermal condition of a
conveyor power unit using a thermal imaging camera. The tests covered conveyors in the …

The authors propose a new method of predictive replacements of belt sections in a conveyor
belt loop with their refurbishment based on their condition recognized by specially designed …

This paper presents the results of a study conducted to determine the dynamic power of a
hydraulic leg. The hydraulic leg is the basic element that maintains the position of a powered …

A mechanical support in a longwall complex requires proper supervision and control of
operating parameters because it is responsible for the safety of machines and workers. Its …

This paper presents the results of lab-simulated tests on longwall powered supports under
dynamic loading conditions. The tests were carried out on a test site, where the tested prop …

The hydraulic system of a powered roof support performs two functions. The first function is
to control the powered roof support in the extraction wall. The second function is to protect …

The powered roof support in a mining complex protects machines and people from the
harmful effects of the rockmass. The design of the powered roof support should be strictly …