This is the 9711th most frequent Russian word.
шахтерское
"Шахтёрское" means "miner's" or "relating to miners."
In this sentence, 'шахтерское' is an adjective derived from 'шахтер', meaning 'miner', and it describes 'оборудование' (equipment), implying that the equipment is specifically related to coal mining.
Шахтерское оборудование используется в угольных шахтах.
Miner's equipment is used in coal mines.
Here, 'шахтерское' modifies 'сообщество' (community), pointing out that the community is related to miners.
В шахтерском сообществе ценятся трудолюбие и упорство.
In the miner's community, diligence and perseverance are valued.
In this instance, 'шахтерского' qualifies 'завода' (factory), signifying that it pertains to the mining industry.