Active Member
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[China]
Address: LUKOU ECONOMIC DEVELOPMENT ZONE, ZHUZHOU CITY, HUNAN, P.R. CHINA 412100
Contact name:
JWE CARBIDE CO., LTD. |
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DTH bit is the tool cutting rock. DTH bits are made of superior quality alloy steel which is made by Timken in U.S. Besides, all our DTH bits are using the brand "Element Six" T.C carbide, which provides (the T.C buttons) for Boart Longyear. In addition, art manufacturing technology makes our DTH bits with higher and more reliable quality.
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 to the top sub, drive chuck and external cylinder all are connected by a multistep thread.
Application:
1. Suitable for high-pressure drilling rigs.
2. Water well drilling.
3. Record-breaking penetration.
4. Exploring Civil Engineering Applications.
5. Lowest cost per foot drilled.
6. Simple & robust design.
7. Exploring Civil Engineering Applications.
8. Foot Valve, not required in the bit.
9. Longer parts of life.
10. Maximizes efficiency.
Specification:
DTH hammer type | HD35 | HD45 | HSD4 | HQL4 | |
Length(less bit) mm | 930 mm | 1030 | 1084 | 1097 | |
Weight(less bit) kg | 25 kg | 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 | |
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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 | |
Drop Center:
Concave Face:
The all-round application bit face is specifically for a
medium-hard and homogeneous rock formation. These bits have good
hole deviation control ability and better flushing capacity.
Convex Face:
The convex faced bits are mainly used for high penetration rates in
soft to medium-hard with low to medium air pressure. It is the most
resistant to steel wash.
Flat Face:
It is commonly used for hard to very hard and abrasive rock
formations in applications with high air pressures. Flat face bits
have a high penetration rates and resistance to steel wash.
Insert Carbide Button shape Selection:
In general, the more gauge buttons, the better over performance,
especially in hard rock. The different button is ideal for
different ground conditions, abrasive levels, and penetration
levels.
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
1. who are we?
We are based in Hunan, China.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
DTH Drill Bit, DTH hammer, DTH Drilling rig, Screw Air Compressor,
Drill pipe
4. why should you buy from us, not from other suppliers?
JWE Carbide Co., Ltd is an integrated mining and engineering tools
and products manufacturer and trader that specialized in producing,
processing and sale of water well drill machine, air compressor,
DTH hammer and drill bits, drill rods etc.
5. what services can we provide?
-Accepted Delivery Terms: FOB, CFR, CIF
-Accepted Payment Currency:USD, EUR, CNY;
-Accepted Payment Type: T/T,L/C,D/P D/A, Western Union;
