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API 2 3/8" Regular Down The Hole Hammer For 110mm Drill Machine Bits

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JWE CARBIDE CO., LTD.

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API 2 3/8" Regular Down The Hole Hammer For 110mm Drill Machine Bits

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Brand Name :	JWE
Model Number :	VNMG080404
Certification :	API
Price :	Negotiable
Payment Terms :	T/T
Supply Ability :	8，000，000 pieces
Delivery Time :	10 Days

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Product Details
Company Profile

API 2 3/8" Regular Down The Hole Hammer For 110mm Drill Machine Bits

Production Description

With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low-pressure DTH hammers. It strictly matches with API standards and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.

Our hammer and bits are made of high-quality alloy steel with advanced heat treatment to assure good drilling performance and long service life. They are widely used by our customers all over the world.

Advantage:

1.Valveless air distribution, more reliable.

2.Piston with simple but compact design, long life.

3.More efficient energy transfer, faster drilling speed, lower air consumption, and lower oil consumption.

4.Fewer internal parts, simple structure, longer life, less failure, and easier to maintain, with all heat-treated parts;

5.Easy to disassemble, thanks for the top sub, drive chuck and external cylinder all are connected by a multi-step thread.

Specification:

DTH hammer type		HD35	HD45	HSD4	HQL4
Length(less bit) mm		930mm	1030	1084	1097
Weight(less bit) kg		25kg	39	40.5	41
External diameter mm		Φ82mm	Φ99	Φ99	Φ99
Bit shank		DHD3.5	COP44 DHD340	SD4	QL40
Hole range(mm)		Φ90-110	Φ110-135	Φ110-135	Φ110-135
Connection thread		API 2 3/8” Reg.	API 2 3/8" Reg	API 2 3/8" Reg	API 2 3/8" Reg
Connection thread
Working pressure		1.0-1.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa		28Hz	27Hz	27Hz	27Hz
Recommended Rotation speed		25-40r/min	25-40r/min	25-40r/min	25-40r/min
Air consumption	1.0Mpa	4.5m3/min	6.0m3/min	6.0m3/min	6.0m3/min
	1.8Mpa	9.0m3/min	10.0m3/min	10.0m3/min	10.0m3/min
	2.4Mpa	/	15.0m3/min	15.0m3/min	15.0m3/min

How to Select Threaded Button Bits Face shape and Carbide Button Shape

Drop Center
For high penetration rates in soft to medium-hard and fissured rock
formations.
Concave Face
The all-round application bit face specifically for a medium-hard
and homogeneous rock formation. Good hole deviation control and
good flushing capacity.
Convex Face
For high penetration rates in soft to medium-hard with low to
medium air pressure. It is the most resistant to steel wash, and
good resistance to steel wash step gauge bit.
Flat Face
This kind of face shape is suitable for hard to very hard and
abrasive rock formations in applications with high air pressures.
Good penetration rates and resistance to steel wash.


B: Insert Carbide Button shape Selection
The different button is ideal for different ground conditions,
abrasive levels, and penetration levels. In general, the more gauge
buttons, the better over performance, especially in hard rock.
Features of our Threaded Button Bits:
* Be produced from premium quality Nickel-alloy steel or
Molybdenum-ally steel for increased durability and wear
characteristics
* Specific heat treatment standards and strict production process
ensure consistent performance

Product Packaging

FAQ

Q: Are you a trading company or manufacturer?
A: We are a professional factory for 15 years.
Q: Trade Assurance?
A: We have joined the Trade Assurance on Alibaba to protect your payment to make sure that we deliver on time and manufacture quality products as required.
Q: How to send an inquiry?
A: It's better to send us detailed specifications of products, it's better attaching some photos for better understanding, You
can:-Send us an inquiry from the Alibaba.com platform.-Send email to us directly, salespersons always wait for service at work.
Q: How do you guarantee your quality?
Firstly, we do a quality test during every process. And we use production instruction cards when one process finished, the work will be signed on the production instruction cards. Secondly, we will collect all comments on our products from customers in time. And try our best to improving quality all the time.
Q: Do you offer samples?
A: Yes, we do offer samples. However, buyers need to pay for the freight charge. In addition, whether samples are free or not depends on the quantity you buy.
Q: What kinds of payment do you accept?
A: In addition to the patterns of payment shown above, you can discuss with us in which way you would like to pay.

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