39mm Mining Roof Ground Support Split Set with Domed Bearing Plate

Introduction of Friction bolt

Friction bolt is a new bolt of full length anchoring and active reinforcing surrounding rock.

And it is a high strength steel pipe with longitudinal slit.
Application:
Mining Friction bolt mainly use in supporting mine laneway and mountain tunnel, secondary support of mine tunnel.

Parameter of Friction bolt

Series	specifications (Diameter* thickness)	Bearing capacity	high-strength plate		Length (mm)
		Bearing capacity	high-strength plate
		(KN)	High-strength Plate(Domed)	Bearing capacity (KN)
		(KN)	High-strength Plate(Domed)	Bearing capacity (KN)
MF-33	33×2.5	100	120×120×5.0	≥100	914-3000
MF-33	33×3.0	120	120×120×6.0	≥120	914-3000
MF-39	39×2.5	130	150×150×5.0	≥150	1200-3000
MF-39	39×3.0	150	150×150×6.0	≥180	1200-3000
MF-42	42×2.5	140	150×150×5.0	≥150	1400-3000
MF-42	42×3.0	160	150×150×6.0	≥180	1400-3000
MF-47	47×2.5	150	150×150×6.0	≥180	1600-3000
MF-47	47×3.0	170	150×150×6.0	≥180	1600-3000