Mining Drilling Ql80 DTH Hammer Concave Bit Face for Water Well

• After-sales Service: Available
• Warranty: One Year
• Certification: ISO 9001:2015
• Standard: GB
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Model NO.: QL80-254
• Material: Alloy Steel
• Size: Ql80-240
• Bit Face: Spherical, Concave, Flat
• Application: Water Well, Mining
• Matched DTH Hammer: Ql80 Hammer
• Painting: Yellow, Blue, as Customer Needed
• Marketing Type: Hot Products 2023
• Transport Package: Plywooden Case
• Specification: 9 1/2inch
• Trademark: Teamwhole
• Origin: Hunan, China
• HS Code: 82071990
• Production Capacity: 5000PCS

Product Description

 General Introduction

 

General Introduction
Changsha Tianhe Drilling Teamwhole proudly offers a comprehensive range of TH bits, spanning diameters from 3" to 47" (76mm to 1200mm). Our robust DTH bits are compatible with all major international brands, including BR, MACH, DHD, COP, IR, NUMA, SD, QL, and MISSION.
Our DTH bits are crafted from premium alloy steel and undergo advanced heat treatment to ensure superior performance. Teamwhole brand DTH bits come in various face designs, including concave, flat, drop center, and convex.

Features:
1. Superior quality with extended service life, minimizing the risk of abnormal breakage.
2. Efficient flushing mechanism to maintain high drilling rates.
3. Comprehensive quality warranty and compensation guidelines.

Bit Face Shape Selection:

1. Drop Center Bit

Ideal for high penetration rates in soft to medium-hard and fissured rock formations. Operates at low to medium air pressures with excellent hole deviation control.

2. Concave Face

An all-around bit face suitable for medium-hard and homogeneous rock formations, offering reliable hole deviation control and effective flushing capacity.

3. Convex Face

Designed for high penetration rates in soft to medium-hard rock under low to medium air pressures. This face shape is highly resistant to steel wash, reducing load and wear on gauge buttons, though it may have poor hole deviation control.

4. Flat Face

This face shape is perfect for hard to very hard and abrasive rock formations, particularly under high air pressures. It offers good penetration rates and resistance to steel wash.

 Raw Material

 

Steel:

Crafted from first-class special alloy steel, ensuring high strength, heat resistance, and wearability.

Carbide
We typically use the finest tungsten carbides sourced from China.
European tungsten carbide options are also available.

Below are the specifications of the TEAMWHOLE QL80-203mm bit.

DTH BIT model		QL80-240mm bit
Diameter		No*Butotn diameter,mm		Flushing holes	Weight
mm	Inch	Gauge buttons	Front buttons
203	8	12*19MM	20*18MM	2	60

 

Matched DTH hammer

Model	Working  pressure	Thread Type	Outer diameter
Teamwhole QL80	10 bar ~ 24 Bar	API 4 1/2"Reg Pin	185mm

 

DTH BIT FACE AND CARBIDES SHAPE

Other sizes of DTH BIT are available.

Matched DTH Hammer inch	Bit diameter		Qty*Button Dia(mm)		Air holes	Weight	Bit shank
	mm	inch	Gauge	Front	pcs	kg
2"	70mm	2 3/4"	6*10mm	4*8mm	2	3	BR2
	76mm	3"	6*12mm	5*10mm	2	3.6
3"	95mm	3 3/4"	6*14mm	4*13mm	2	4.5	BR3,BR33,COP32
	102mm	4"	6*14mm	5*13mm	2	5.9
3.5"	90mm	3.5"	6*14mm	4*13mm	2	4.9	DHD3.5
	102mm	4"	6*14mm	5*13mm	2	5.9
4"	105mm	4 1/8"	7*14mm	6*13mm	2	8	DHD340,COP44 QL40,M40,SD4
	130mm	5"	8*14mm	7*14mm	2	10
5"	140mm	5.5"	7*18mm	7*14mm	2	15.5	DHD350,QL50,SD5 M50
	152mm	6"	8*18mm	8*14mm	2	16.5
6"	165mm	6 1/2"	8*18mm	8*16mm	2	24.5	DHD360,SD6,QL60 M60
	171mm	6 3/4"	8*18mm	4*18mm+4*16mm	2	25
8"	203mm	8"	9*18mm	6*18mm+4*16mm	3	46	DHD380,SD8,QL80 M80
	254mm	10"	10*18mm	6*18mm+9*16mm	3	60
10"	254mm	10"	14*18mm	12*18mm+9*16mm	3	90	TH10,SD10,NUMA100
	305mm	12"	14*18mm	14*18mm+11*16mm	3	120
12"	350mm	13 3/4"	15*19mm	24*19mm+15*16mm	3	190	DHD112,SD12, NUMA120,NUMA125
	400mm	15 3/4"	30*19mm	18*19mm+22*16mm	3	230
14"	430mm	17"	30*20mm	18*19mm+25*16mm	3	245	TK14,NUMA125
	560mm	22"	36*20mm	60*19mm	3	300
18"	550mm	21 5/8"	48*19mm	90*18mm	6	560	TK18,NUMA180
	700mm	27.5"	48*20mm	60*19mm+73*18mm	6	740
24""	780mm	30 3/4"	54*20mm	66*20mm+90*18mm	6	1265	TK24,NUMA240
	1000mm	39"	78*20mm	154*18mm	6	1500

 

Excellent for applications such as water well drilling, geothermal holes, and hole blasting.

 Package

OUR COMPANY
Established in 2002.
Boasting a 60,000 square meter workshop.
Teamwhole is a leading manufacturer of DTH Hammers and bits, ODEX systems, and Reverse Circulation hammers and bits.
Located in Hunan Province, China, with a global service network extending to over 40 countries.

FAQ