Geological Exploration Twist DTH Soil Drilling Spiral Rod and Bit

• Certification: ISO 9001:2000
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Alloy Steel
• Condition: 100% New
• Delivery: 25-30days
• MOQ: 10PCS
• Color: on Request
• After Sale Service: Yes
• OEM/ODM: Yes
• Transport Package: Plywood Box
• Specification: 50-300MM
• Trademark: SANSUNG
• Origin: China
• HS Code: 84314320
• Production Capacity: 30000 PCS/Year

Product Description

The spiral geologocal drill pipe/rod is produced on the basis of high torque performance of geological drill pipe/rod, using single screw blades or double helical blades, by the craft of prestressed winding welding.

High grade geological drilling special alloy steel tube is used for the drill rod and pipe joint selects high quality alloy structural steel, molded under high-pressure, with quenching and tempering treatment in vacuum. The friction welding ensures characteristics of high bending strength, firmness, high efficiency deslagging.

Compared with similar products, the fatigue stength and shear stength are greatly improved. Geological spiral drill pipe is mainly suitable for deep hole drilling under medium hard and above geological conditions construction, greatly improving the production efficiency of drilling, is the first choice for high efficiency drilling construction, energy saving and consumption reduction.

The connection is by wedge spring pin, or with thread API 2 3/8" REG, or customized.

Rod length is from 1000MM to 4500MM, other lengths are also available.

Blades quantity in each 1000MM section can be customized.

Rod body diameter and Spiral diameter are also able to change as per client's request.

 

Specifications:

 

rod body  diameter	spiral diameter	steel grade	torque	drill depth	bit diameter	joint hardness
mm	mm		n/m	m	mm	HRC
34	50-80	DZ50	2000	100	65-113	28-32
42	50-100	DZ50	3000	100	65-146	28-32
50	73-150	DZ50	5000	100	94-200	28-32
60	73-170	R780	7000	150	94-250	28-32
63.5	73-200	R780	8000	200	94-250	28-32
73	89-250	R780	10000	200	108-300	28-32
89	100-300	R780	12000	300	108-350	28-32