hydraulic prop

hydraulic prop

[hi′drȯ·lik ′präp]
(mining engineering)
A supporting device consisting of two telescoping steel cylinders extended by hydraulic pressure provided by a built-in hand pump.
References in periodicals archive ?
Contract notice: Delivery individual hydraulic props for branch coal company sa in 2016.
Delivery of the individual hydraulic props for Branch Coal Company SA 2016 (No.
Contract award: the contract is for the supply to the mines of jsw sa hydraulic props and parts of hydraulic props with maturity of 12 months from the date of the agreement.
Deliveries to JSW SA mines hydraulic props and parts of hydraulic props with maturity of 12 months from the date of the agreement.
Contract notice: The contract is for the supply to the mines of jsw sa hydraulic props and parts of hydraulic props with maturity of 12 months from the date of the contract.
Contract award: delivery of the individual hydraulic props for branch coal company in 2015.
Tenders are invited for Hydraulic Props Supply Circuit Open Individually Equipped with Fan
Contract award: repair of hydraulic props to type kw-16/37-poz/zrp powered support for kw sa oddz.
Overhaul along with the retrofitting of connection type ZRP hydraulic props to obudowyzmechanizowanej type KW-16/37-POz/ZRP for KW SA Branch.
Contract notice: Repair of hydraulic props to type kw-16/37-poz/zrp powered support for kw sa branch.
Contract award: delivery of individual hydraulic props for branch coal company in 2014