DTH Hammer Concentric DTH Hammer and Drill Bits

• After-sales Service: Support
• Warranty: Support
• Certification: ISO 9001:2008
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: HW
• Standard: Other
• Surface Treatment: Polishing
• Manufacturing Process: Casting
• Material: Carbon Steel
• Model: Eccentric Drill Bit
• Applicable Drilling Rig: DTH Drilling Rig
• Shipping and Packaging: Containers
• Hammer Style: 5"
• Transport Package: Wooden Case
• Specification: according the model
• Trademark: HW
• Origin: China
• HS Code: 8431431000
• Production Capacity: 1000PCS Per Year
• Package Size: 58.00cm * 36.00cm * 24.00cm
• Package Gross Weight: 23.000kg

Product Description

Product Description:
Casing System,  also named Eccentric Casing System, is suitable for drilling water wells, geothermal
wells, short mircopiles,medium mini-type grouting hole of building, diamond harbour project.

Economy: Eccentric is the most economical solutions because its ingenious reaming wing the bit is
retrievable can be used at the next hole.

Working Principle:

When drilling, the reamer bit will rotate out to enlarge the hole which enough for the casing tube slide
down behind the reamer. When reached required depth, the drill pipe will drill to the reverse direction
and the reamer bit will retract, It is allowing the whole drilling system to pass through the casing.

 

Product Parameters

 

 

 

Model	Casing tube O.D./mm	Maximum O.D. of guide device/mm	Bit diameter/mm	Casing shoe I.D./mm	Maximum reaming O.D./mm	Hammer style
108	108	92	84	86	118	3"
114	114	100	92	94	124	3"
127	127	110	100	102	136	3-4"
146	146	124	115	117	156	4"
168	168	146	134	138	178	5"
178	178	156	144	148	193	5"
183	183	160	144	152	193	5"
194	194	178	165	167	208	6"
219	219	203	189	193	237	6-7"
245	245	220	206	210	260	6-8"
273	273	256	238	242	308	8"
325	325	297	280	285	355	8-10"
377	377	351	328	333	420	10-12"

Detailed Photos

 

 

Casing System,  also named Eccentric Casing System, is suitable for drilling water wells, geothermal
wells, short mircopiles,medium mini-type grouting hole of building, diamond harbour project.
 

Company Profile

Jining Hengwang Mining Machinery Co., Ltd. is located in Jining, Shandong Province, China. Established
in 2002, comprehensive enterprise, collection of marketing, scientific research, trade.Specializing in
the Drilling equipment; Railway equipment; Road machinery; Electrical equipment; Pumps; Hydraulic
tools; New energy etc.

Our products sell to Vietnam, Malaysia, South Korea and other southeast Asia, Africa and the Middle
East, South America, North America, Europe etc, is popular among the masses of customers. Our
Companies adhere business philosophy "to provide convenient service to customers, to create
development opportunities for employees" and "continuous improvement, enjoy the" spirit of enterprise.
Warmly welcome new and old friends from home and abroad came to our company, to make negotiation.

Our company long term commitment to science connect with market, keep up with Reform Development,
take science to be commercialization, marketization and industrialization, work with Coal science and
design institute, Metallurgy Design institute, Coal science and technology university and some other
famous scientific research, develop and research some mine machines and devices, we not only sell at
home but also abroad, Southeast Asia: Vietnam, Malaysia, Korea, Africa and Middle East, our products
get great popular from clients. We rely on top quality,

Competitive price and good service to offer metallurgy, coal, hydroelectric, railway, highway, mine etc,
we quickly Occupied the Market, Achieved remarkable results.