G30 Taper Drill Rods

• Product introduction
• Product parameters

Introduction to G30 Taper Drill Rods

Brief Introduction

• Raw material: It is 55SiMnMo, 320*480 large-section continuous casting billet, then rolling into 150*150 square billet after inserting core rod and  seamless pipe.

• Production process: involving multiple processes, such as steel rolling, forging, normalizing, quenching and tempering, etc.

• Brand: QSAAA, QSAA, GTIII, G30

• Shank size: H22*108mm/ H25*108mm/H25*159mm.

• Angle: 7 /11/12 degree.

• Package: 5 pieces with a small bundle, 50 or 100 pieces with a big bundle.

Quality Level

According to the different choices of customers, we offer four quality products, including Grade A, Grade B, Grade C and Grade D. Customers can choose suitable drill rod according to different hardness of rock and types of rock drilling tools. Grade A drill rod QSAAA and GTIII can be applied to solid rock, III level or above and f≥12 rocks according to Protodikonov’s Hardness Coefficient of Rock. Grade B drill rod QSAA and G30 is suitable for IV level or above and f≥12 rocks, Grade C and Grade D drill rod suitable for IV level or below and f≤8 rocks.

Specifications：

Drill rod	Length		Packing	Weight approx
	(mm)	(feet)	(pcs)	(kg)
	610	2	100	315
	762	2.5	100	370
	915	3	100	435
	1220	4	100	465
	1525	5	100	495
	1830	6	100	555
H22 tapered drill rod Shank length: 108mm/159mm Degree: 7°/11°/12° Pinhole Dia of shank: 7.5±0.3mm Core hole Dia: ≥5.5mm Note: according to customer’s requirement, we can also offer other raw material as follows: ZK95CrMo, ZK23CrNi3Mo, ZK40SiMnCrNiMo, ZK35SiMnMoV	2135	7	100	620
	2440	8	100	680
	2745	9	100	740
	3050	10	100	770
	3660	12	100	800
	3965	13	100	860
	4270	14	100	920
	4575	15	100	1010
	4880	16	100	1070
	5490	18	100	1220
	6100	20	100	1370