Twist Drill Pipe spiral drill pipe long life service from China manufacturer - Shandong China Coal Industry and Mining supplies Group

Product Detail

Model No.: depending on model

Production Capacity: 1000 sets per month

Delivery Date: 5-10 days after your paymen...

Type: Drill Bit

Means of Transport: Ocean,Land,Air

Packing: carton box, plastic bags, w...

Machine Type: Drilling Machine

Brand Name: china coal

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spiral drill pipe; twist drill pipe; drill rod

Product Introduction

Spiral drill pipes design feature: overlay spiral. It guarantees big torque,

quick slagging, and clear hole forming. Besides, the drill bit will hardly get

stuck. Application: soft coal bed, and other formation similar to coal bed.

The tapered drill rod is used for rock drilling, blasting holes and other

drilling works in the quarries, coal mines, traffic and other constructions.

Generally, the light duty rock drill uses 7 taper or smaller taper angle,

the heavy duty rock drill mainly uses 12 taper angle.

Technical Parameters

Specifications( mm)			Craft	Connection type with drilling machine
Dia.	Length	Thread type	Craft	Connection type with drilling machine
50-42	500~1500	Taper thread	Friction welding	clamp
63.5-42	500~1500	Taper thread	Friction welding	clamp
63.5-50	500~1500	Taper thread	Friction welding	clamp
73-50	500~1500	Taper thread	Friction welding	clamp
73-63.5	500~1500	Taper thread	Friction welding	clamp
90-63.5	500~1500	Taper thread	Friction welding	Match active drill rod
98-73	500~1500	Hex. Shank	Friction welding	Match active drill rod
110-63.5	500~1500	Taper thread	Friction welding	Match active drill rod
130-63.5	500~1500	Taper thread	Friction welding	Match active drill rod
146-73	500~1500	Taper thread	Friction welding	Match active drill rod