Making of aisi 4145h alloy steel, this is a kind of dill collar which add three right out of spiral groove on the outer circle of ordinary drill collar when processing. The main effect is to reduce the drill collar wall in the area of contact and friction when working, maintain uniformity with the mud through spiral mobile, keep the balance of drill string and prevent pressure sticking. The single weight of spiral dill collar is 4% lighter than the same specification of ordinary dill collar , the two ends of the thread and the general shape are the same with drill collar. According to the form of spiral it is divided into type i and type ii.
It is made of high quality low-carbon-alloy steel. The raw material undergo a rigorous analysis of the chemical composition by forging, through the testing of mechanical properties of hardness, toughness , impact value and intergranular corrosion cracking performance in order to reach the requirement of standards, at the same time owning a good low permeability and mechanical processing performance .
Magnetic permeability(mps=1íß105/4íta/m)
Average¦u>r1.010
Magnetic field gradient¦í˜bín0.05ª8t
Adopting advanced power high speed cnc grinder from germany and switzerland as well as high precision (3dx technology) grinding of high quality ultra micro-grain tungsten steel(quality carbide), it has perfect flute and size tolerance can up to ía0.001mm(ía1ª8m) high.
Different size, weight and dimensions according to drawings and samples.
The rock drill is a kind of high efficiency air leg rock drill machinery. It is mainly used for diging into mine laneway and blasting holes in all drilling works. It is indispensably importance machine tool in metallurgy, coal, railway, traffic, water conservancy construction and national defence stone project.
It is suitable for drilling and blasting under various of rocks at any direction angles. Blast hole dia is 34-42mm,drill hole depth is 5 m This machine may match with Model FT160BD short air leg or Model FT160BC long air leg.
This machine has transparent surface of FY200B oil reservoir, easy to observe the oil lever, adjust oil quantity, ensure the well lubricated.
Wooden case
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Length:380mm-460mm
Diameter:31.7mm-48mm
Thread:r, t
Flushing hole:8.0mm-16mm.
Our different levels of products choose the high-qualitied medium carbon alloy steel and medium carbon steel, use advanced processing technology to make the best products.
Made of AISI4145H alloy steel, drill collar mainly used between the dill pipe and drill head and connected by conversion connector so that they can provide the pressure and weighting to dill head , in order to make the dill head to keep right trace .
Alloy steel and suitable tungsten carbide tips.
We not only focus on the intrinsic quality of the products, but also makes the products have the scientific design, beautiful appearance, and reasonable product structure. Different bit face designs adapt to different hardness of the rocks.
We provide HSS machine tools in two series: ground and rolling machine tools, including straight-fluted taps & spiral-fluted groove taps.
Detailed info. As follows:
Specification:
Dia:m3 to m12 (available from stock) , other styles can be made as you requested ;
Material: m2, m35, m42, 4241, 4341, hj, 301.(hss)
Brand name: Huajiu
Place of origin : Jiangsu , China
Port: shanghai , China
Terms of payment/t l/c
Minimum order quantity :1, 000pcs
Supply ability: 1000, 000 pcs per month
Delivery time : as negotiated
Our company is a professional supplier of rock drilling tools in china.
Especially dth hammers bits and overburden systems.We also supply drill rods,
Button bits, shank adaptors, coupling sleeves and other related products.
Our products are welcome in australia, south africa, america, europe.
Our products can be used in mining, tunneling, quarrying, construction etc.
Bucking unit is an important tool used for disassembling/assembling, maintaining of all kinds of drill tools, pipe strings and thread connections for all kinds of down hole equipments in petroleum exploration and geological prospecting. It has the following functions such as: (1)high automatic levelú+(2)large torque of screwing on/screwing outú+(3) wide diameter range for tubing fittingsú+(4)without slippage or biting the working surface;(5)quick-tightening screw threadú+(6)provide push-pull force for work piece.
Hydraulic jar tester is an necessary tool to test tensile strength and pressure performance of jars, shock absorber, jar intensifiers. It also can test the strength of thread connection. The hydraulic jar tester is designed and manufactured by integrating the advanced technology from same equipment abroad and the actual situation of the petroleum industry in china. Advantages such as easy and steady operation, big push/pull tonnages, high safety feature.
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. MS brand spiral drill collars are manufactured strictly according to API Spec7-1 and standard SY5144.
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