Stone Crushing Industry is an important industrial sector in the country engaged in producing crushed stone of various sizes depending upon the requirement which acts as raw material for various construction activities such as construction of Roads, Highways, Bridges, Buildings, Canals etc. It is estimated that there are over 12,000 stone crusher units in India. The number is expected to grow further keeping in view the future plans for development of infrastructure of roads, canals and buildings that are required for overall development of the country. In India, the Stone Crushing Industry sector is estimated to have an annual turnover of Rs. 5000 crore (equivalent to over US$ 1 billion) and is therefore an economically important sector. The sector is estimated to be providing direct employment to over 500,000 people engaged in various activities such as mining, Crushing plant, transportation of mined stones and crushed products etc. Most of these personnel are from rural and economically backward areas where employment opportunities are limited and therefore it carries greater significance in terms of social importance in rural areas. It is a source of earning for uneducated poor unskilled rural people. 



The stone crusher is one such industry that exists in the vicinity of almost all major cities/towns throughout the country in all the states because the construction activities go on throughout the country. As transportation of stone over long distances adds to cost of the crushed stone products, the crushers need to be necessarily located nearer to the demand centers such as Cities, Bridges, Canals etc. Stone Crushers also need electricity supply and large number of man power for its operation. It also needs access roads for the movement of mined stone as well as crushed stone products. It is for these reasons that most Stone Crushers are located along the periphery of Cities or in the vicinity of major construction projects. 

In most cases the Stone Crushers come up in clusters of number of units ranging from five to fifty in one cluster. The crushers are located nearer to the source of raw material such as Stone mines, River Beds etc. These stone crushers though socio-economically an important sector, gives rise to substantial quantity of fine fugitive dust emissions which create health hazards to the workers as well as surrounding population by way of causing respiratory diseases. The dust also adversely affects visibility, reduces growth of vegetation and hampers aesthetics of the area. 
In order to prevent/control these emissions, CPCB has already evolved Emission Standards and guidelines in 1989, which has been notified under Environment (Protection) Act, 1986 by Ministry of Environment & Forests vide Notification No. G.S.R. 742(E) dated 30th August 1990 & S.O. 8(E) dated December 31, 1990 based on techno-economic feasibility to achieve the standards. But over the years, as the need for more effective control and enforcement has been felt and to provide more specific guidelines to the stone crushers to enable them control emissions satisfactorily.
Crushed stone is segregated into various sizes like 35mm, 20mm, 12mm, etc for different uses. Crushed stone aggregates are used for construction of roads, bridges, housing, industrial building construction and other cement based products like RCC pipes, PSC poles, pre moulded slabs, frames and beams, etc for fabrication.
    
It is advantageous if the crushed stone unit is set up near the quarries where the granite boulders of various sizes are available for the crushing unit. The wastage from the granite industry will be of much use to the crushed stone unit.

for cement based products like RCC pipes, PSC poles; cement concrete hollow blocks, precast cement concrete slabs, well rings, window & door frames and road lying. The demand for crushed stone will continue to grow with the growth of its user industry. The unit can be set up depending availability of raw material and major commercial centre. Stone crushed by stone crusher is segregated into various sizes like 35mm, 20mm, 12mm, etc for different uses. The final product of stone crusher aggregates are used for construction of roads, bridges, housing, industrial building construction and other cement based products like RCC pipes, PSC poles, remolded slabs, frames and beams, etc for fabrication.
    
It is advantageous if the crushed stone unit is set up near the quarries where the granite boulders of various sizes are available for the crushing unit. The wastage from the granite industry will be of much use to the crushed stone unit.

AMC manufactures various equipments for whole set of stone crushing production line, and provides superior technical support for customers. The whole sand-making production line consists of Vibrating Feeder, Jaw Crusher, vertical shaft Impact Crusher (Sand making machine), Vibrating Screen, sand washing machine, belt conveyor, electric control system, etc. We design different stone Crushing plant lines ranging 50 t/h to 600 t/h. We have been researching the sand-making machine for years, and we have made it part of the stone crushing line. The whole set of sand-making production line designed by our company is suitable to crush the hard limestone, granite, basalt, gravel, slag, etc and artificially sand making for hydroelectric power, building material, high way, city construction, etc. Different models of equipments are combined to meet different customers’ different demands according to different craft requirements.