π steel is mainly used for the production π main beams, metal roof beams, hinged roof beams and other mining support beam, in the coal mine (mine) tunnel (tunnel) plays a supporting role in π steel because of its cross-section like the letter \"π \"character named. π steel structure is a face and two legs, of which the surface is flanked by jagged lace.
7 # π steel which can be used with all types of monomers, metal pillar with the composition of metal stents for the horizontal and gently coal mining face and head are inclined or other large areas using roof control. It can support long span cantilevered roof roof control area, then to achieve a greater face without pillars supporting the work space.In order to improve working conditions and the use of new coal mining machinery and flexible transport cashier transformation favorable conditions.
Model 7#πSteel Weight 10.2kg/m
Material 27SiMn Leg heigh 45MM
Outside width 100MM Intside width 83MM
Waist thickness8MM Circular pitch 52MM
Diagonal125 Diagonal 9.6M，9.85M