Nanjing Fenghui Composite Material Co., Ltd.

Your Position: Home >> Products >> By product type >> FRP Rockbolt >> GFRP Rockbolt for Coal Mine

GFRP Rockbolt for Coal Mine

GFRP Rockbolt has widely used in madway supporting of coal mine, and provide a very beneficial substitution for traditional steel rockbolt system.
njfenghui@gmail.com
Inquiry

Product Details

GFRP Rockbolt has widely used in tunnel supporting of coal mine, and provide a very beneficial substitution for traditional steel rockbolt system.

Test Unit			MGSL18	MGSL20	MGSL22	MGSL24	MGSL27
Surface			Uniform appearance，no bubble and flaw
Nominal diameter(mm)			18	20	22	24	27
Tensile strength(MPa)			500	500	500	500	500
Shearing strength(MPa)			100	100	100	100	100
Torsion(Nm)			45	55	70	90	120
Antistatic(Ω)			≤3x10⁷
Flame resistance	Flame burning time	6pcs together (s)	≤30
		1pc (s)	≤15
	Flameless burning time	6pcs together(s)	≤120
		1pc(s)	≤60
Anchor Strength (kN)			60	70	80	90	100
Plate Load Strength (kN)			60	70	80	90	100
Nut Load Strength (kN)			60	70	80	90	100