20, 30mm Compound High Efficiency Spiral Drill Rod Quarry Mining

• Standard: GS
• Material: Carbon Steel
• Precision: High Precision
• Automatic Grade: Automatic
• Structure: Vertical Drilling Machine
• Layout: Vertical
• Model NO.: 28, 30, 38, 40, 75, 98mm
• Condition: New
• Hole Diameter: 28-113mm
• Lenth: 500-3000mm
• Spiral Diameter: 28, 30, 32, 38, 40, 42, 69, 75, 89, 98, 113
• Connector Size: F12*48, F14*50/80, B45*100
• Tube Diameter: 18, 21, 22, 25, 27, 50, 63, 73
• Transport Package: Wire Bundle, 5-10 PCS Per Bundle
• Specification: SGS, CE
• Trademark: Prodrill
• Origin: China
• HS Code: 84314320
• Production Capacity: 3000 Sets/Month

Product Description

20, 30mm Compound High Efficiency Spiral Drill Rod Quarry Mining

Craft:presstressed wire winding and welding on the basis of merits from German craft

Material:high pressure seamless alloy pipe (rod body),high wear -resistent-Tshape strip steel(spiral);meduim carbon alloy steel which has been thermal refined in vacuum (connecter)
Connection type bettween rods :spring pin with U-shape or  semi-ring retaning pin,which guarantees the max torque of the rod.
Matching;Portable or hand-held drilling machine.
Feature:light,quick connection,quick slagging ,high efficiency.
Application:water&gas exploration of coal seam or similar stratum.Rods with drainage hole and without are available.

Specifaction and Size(mm)				Torque(N.m)	Connection type
Dia.(spairl+tube)	tube dia	length	Connector size
Φ40	Φ20	500-3000	F14*80	200-250	Thread
Φ42	Φ22	500-3000	F14*80	250-350	Square shank
Φ45	Φ22	500-3000	F14*80	250-350	Square shank
Φ55	Φ25	500-3000	F18*80	350-450	Square shank
Φ65	Φ25-32	500-3000	F18*80	450-550	Square shank
Φ75	Φ25-32	500-3000	F24*85	450-550	Square shank
Φ85	Φ32-42	500-3000	F24*85	550-750	Square shank
Φ90	Φ42-50	500-3000	F30*85	3500-4500	Hex.shank
Φ110	Φ42-50	500-3000	F32*85	3500-4500	Hex.shank
Φ133	Φ50-63	500-3000	F34*90	7500-8500	Hex.shank