Coal And Mining Suppliers and Manufacturers

Advanced type of taper drill bits when compared with taper chisel bits and taper cross bits. With carbide buttons hot pressed on bits bodies, it has good drilling performance and life time. Usually used for hard or very hard rock formation. Steel body, made by material 40Cr or 42CrMo, heat treatment with 40-44HRC hardness, has high toughness and wearable character. Tip is made from Low press Sintered, and Suitable Grade Selected according to the Target Projects, Which are to make sure the good performance during working. For Areas Using: Milling minerals Cutting routes Cutting in tunnels . For Machines: The products adapt to the machine with all the performance features such as a high feed rate, a long service life and short tool changing times. Together with the parts supply assurance, a high daily production volume, and above-average economy is guaranteed Specification+¬Such as C31HD, U765, U765HD, U85HD, U82 U84, U92, U94, U47, U47HD etc Package+¬in carton Supply ability:10000pcs/month Delivery time:30days Payment terms:T/T or L/C.

The scraper produced by Henan Shuangzhi is mostly made of materials of 27SiMn, 40Cr and 40Mn2. After forging, the strength, hardness and toughness of the above three materials are all improved, and the abrasion resistance and bending resistance are also greatly improved. The specific processing technology of scraper is as follows: blanking â?? heating â?? forging blank â?? punching â?? removing burr â?? tempering â?? shot blasting â?? surface treatment â?? quality inspection. Forging process is the key of processing technology. After the blank is heated in the reheating furnace, the blank is made by forging hammer. During the forging process, the oxide skin on the blank surface is knocked off, and the depth and hardness of the hardening layer of the scraper blank are more guaranteed. Henan Shuangzhi supplies the following types of scraper: 101S-01 scraper, 150S0117-1 scraper, 5GL02-2A scraper, 1GL3-1 scraper, 43GL03-1 scraper, 77GL3-1 scraper, 3S001-00/14 scraper, 8GL04-1 scraper, etc. More scraper models can contact us for verification, provide drawings can also provide customized services. Scraper is only a small part of our business, Henan Shuangzhi machinery mainly produces and manufactures all kinds of coal parts forgings, scraper parts, transfer machine parts, hydraulic bracket parts, etc., Henan Shuangzhi all involved. If you need coal parts forgings, you are welcome to contact us. All staff of Henan Shuangzhi will serve you wholeheartedly.

I have a coal mine in Indonesia.. our priority is an investment to start coal acquisition there.. but if anyone wants to buy, we're ready to sell it also.. investment/sell amount - 200million USD..

Coal Mine Machinery Boring Machine Model:EBZ240 / EBZ200 / EBZ160A / EBZ160A Dwarf-type / EBZ132A / EBZ120 Electric Haulage Shearer MG300(250)/710(610)-WD Series AC Electric Haulage shearer Northern Heavy Industries Group Co.,Ltd(China NHI),listed among Top 500 Chinese Enterprises,The major products include tunnel boring equipments,China Apron Feeder,China Stacker Reclaimer,Conveying Equipment, bucket wheel stacker reclaimer, circular stacker reclaimer, metallurgy equipments, mining equipments, coal machineries, power equipments,etc.With all the four qualifications recognized by ISO9001 Quality Management System.

Advantage: 1.High wear-resisting properties and bending properties. 2.No spark during using and provide the safety of coal mining. 3.High energy saving efficiency. Reducing replacing picks time, shortening the coal cutter downtime and reducing the excavating cost.

Wuhan Reetec Diamond Co., Ltd. (Wuhan Reetec for short) is a specialized company engaged in diamond composite materials research and development, design and manufacture, the main products PDC cutters and top dome PDC inserts are widely used in petroleum geological drilling and exploration, coal mining, road and bridge engineering excavation, as well as other areas of abrasion resistant tools. With strong supports from the R&D system of Kingdream Public Limited Company(Kin gdream for short), Wuhan Reetec Diamond Co., Ltd was established and registered in Wuhan East Lake New Tech Development Zone on December 28, 2002. In 2006, Reetec passed ISO9001-2000 QMS Certification. In 2008, The Company was recognized as a National Hi-Tech. Enterprise, and passed ISO 9001-2008 QMS Renewal Certification in 2010. The quality objective of Wuhan Reetec is Advanced Technology and Customer Supreme. We put more than 10% sales turnover in R&D, and make a lot of basic researches forming a PCD material technology system every year. The system consists of material failure analysis, material design, powder process, HTHP, measurement and control of key technology status, products performance test, simulation and test of conditions in down-hole, and product technology databases and statistical analysis, and etc. In 2008, Wuhan Reetec and the strategic customer established a joint research institute to make the technical data system, in order to build a technical information system integrating PCD materials with rock bits. In 2012, the company held shares in Wuhan Tandao Energy Resource Technology Co. Ltd, which was engaged in wireless Logging While Drilling(LWD) business (involving development, design, manufacture, marketing and technical service), in order to set up a technical information system regarding key processes of drilling, rock bit and PCD composite materials. In 2014, the company began to construct PCD materials process digitization and automation. Coal picks are the important parts of the coal mining machines for breaking rocks, and they are also one of the vulnerable parts of the coal mining machines. The performance of coal picks has a great influence on the production capacity of coal mining, the power consumption of coal mining machines, the work stability, the workers labor intensity, and the service life of other parts. Compared with common alloy coal picks, PDC coal picks have better wear resistance, longer service life, higher construction efficiency and higher cost efficiency, especially suitable for the hard rock formations

Coal Mining Bit,

PDC Coal Mining Bit,

Specification: Capacity/flow: 4-2500m3/h Head / lift: 9-130 m Speed: rpm Power: 0.55-800kw Medium density: Ph of medium: 5-12 Caliber: 40mm -300mm Container

2nb coal mine mud pump Feature 1.Used in coring 2.Concentration is not more than 4% 3.Supply cooling and flushing fluid Description 2nb coal mine mud pump Washingfluid for mud , rinsing , coal mine water The sediment concentration is not more than 4%, impurity particles slime water of not greater than 2 mm The pump is mainly with zlj series coal mine tunnel drilling rig, and filling and emptying system with other systems Wooden box

Product: Coal Mining machinery parts Place of Origin: Henan, China Brand Name: OEM Model Number: As your design Material: 42CrMo, 27SiMn, 40Cr, 40CrNiMoA, 45#, 30CrMo, 35CrMo, 42CrMo, ect. Features and advantages: Very good kneading Near-net-shape surfaces Also suitable for smaller quantities Short delivery times Seamlessly rolled and forged copper rings Produced in a modern ring-rolling mill First-class surface quality

Scraper speed reducer is mainly composed of upper box, lower box, one axis assembly, two axis assembly, three axis assembly, four axis assembly, bearing, gear, seals and so on. At present, the different parts of the scraper reducer are mainly lubricate by grease, oil immersion and splash. The main lubricants of plate scraper reducer are no. 150 extreme pressure gear oil or No. 22 hyperbolic gear oil and No. 2 sodium base grease. The bearings and gears on the second, third and fourth shafts of the scraper reducer are lubricated by splashing oil. Scraper reducer in the oil, follow the strict and accurate principle, can not be mixed with different grades of lubricating oil. Lubricating oil shall be loaded from the top viewing hole when the scraper reducer is being lubricated, and the amount of lubricating oil shall be kept at one third of the circle arc bevel gear. After the new reducer is put into use for 200 hours, the oil inside the reducer should be released, cleaned and changed. After the initial cleaning and oil change, wash and oil change every 1000 hours. When the reducer is working, it should be cleaned and changed for oil when the following conditions occur visually. Oil appears to deposit dirt, particulate sediments. The oil darkens, turns black, and even gives off an unpleasant smell. Brown gelatinous material appears on parts of reducer, corrosion marks appear on the surface of parts. Oil body flow difficulty. There are some situations need to be tested, in the reducer lubricating oil sundry content more than 2%, metal abrasive more than 0.5%, water content more than 2%, the need to clean oil change. In strict accordance with the requirements of the timely scraper reducer lubrication, cleaning and oil change can prolong the cycle of the reducer. Henan Shuangzhi Machinery Equipment Co., LTD. Production reducer, axle assembly, two axle assembly, three axle assembly, four axle assembly, arc bevel gear, if there is a need, you can telephone consultation, Shuangzhi machinery is looking forward to working with you.

The middle trough of the scraper machine is also called the slop or trough is the fuselage of the scraper conveyer, which is composed of the middle plate and the groove side steel, etc. The upper trough to transport coal and the lower trough for the scraper chain to be fixed with bolts in the return journey. Double small series to take you to understand the scraper conveyor under the middle trough. Scraper conveyer transport coal and other goods of the main carrier, the middle trough according to the production process to divide, can be divided into the welding middle trough and the casting middle trough. The welding middle groove is mainly composed of groove top steel and middle plate. There are two types of groove top steel, one is M-shaped groove top steel and the other is E-shaped groove top steel. As the name implies, these two types of groove top steel are shaped like capital letters M and E. The central trough of the scraper is mainly used as a channel for transporting coal. Usually a section of the middle groove is composed of two 1.5 meters long groove steel and two middle plates. After the two middle plates are welded to the groove steel, the upper and lower layers are formed, in which the scraper chain runs. The state has clear standards for the steel used to weld the groove top steel of the middle slot, while the middle plate is selected in accordance with the actual application, with ordinary 45 steel, 16 manganese, or other materials, and in order to increase the wear resistance, you can add welding wear strip above. Through the above description, have a basic understanding of the central slot of the scraper, Henan Shuangzhi production chute, scraper and other easy to wear parts, sprocket components new and repaired, structural parts. Welcome new and old customers to consult the factory.

The hammer head of the crusher is an essential accessory for the coal mine crusher. At present, the common crusher hammer head on the market is generally divided into two kinds, forging hammer head and casting hammer head. The hammer head of forging crusher is mainly used to heat the blank and apply pressure on the blank by forging machine to produce plastic deformation of the blank, so as to obtain the hammer head of the crusher with the given shape, size and mechanical properties. The casting loose defect caused by casting hammers can be greatly changed by forging and the structure of hammers can be optimized. Therefore, the forging hammer head performance is superior to the casting hammer head, relatively also more wear-resisting. In order to guarantee the wear resistance of forging hammer head, it is necessary to choose the material with better wear resistance. At present, the common materials in the market include high manganese steel, high chromium cast iron, low carbon alloy steel, etc., which can be selected according to the use conditions of different mining areas. Coal machine parts manufacturer Henan Shuanzhi production of various types of forging hammer head, crushing shaft group. More coal accessories small knowledge, welcome you to continue to pay attention to Henan Shuangzhi.

Hydraulic support is the support equipment above the working face in coal mine production. It has a lot of fittings, such as hydraulic support connecting head, cylinder jack, top beam, bottom beam, etc. What is the use of hydraulic support connectors? So let's talk a little bit about that today. The connecting head of hydraulic support is also quite common in the daily procurement of hydraulic support parts. Its main function is to connect scraper conveyor and hydraulic support organically to realize the role of force transmission between them. When working, the connecting head has to move the bracket and push the conveyor to carry out the operation, completing the organic operation of these two links. When the hydraulic support connector works under the alternating stress of tension, compression and torsion, if the working environment in the mine is poor and the air is humid, there may be many unexpected factors, leading to the deterioration of the stress of the connector. Once the connection is damaged, the scraper conveyor and hydraulic support may not work normally, which may be shut down and stop production, causing huge losses. Therefore, it is necessary to check the first vulnerable parts of the hydraulic support connection from time to time, so as to avoid production problems. Casting steel structure is mostly used in daily connection, which has the advantages of reliable connection and convenient manufacture. But cast steel also has a big problem, that is, in the process of smelting and crystallization, the inherent unevenness. Many studies have shown that such inhomogeneity can effectively improve the bending strength and hardness of the material under certain conditions, but deteriorate the toughness and plasticity of the casting, and even reduce the tensile strength of the casting, which is bound to result in the failure of the casting to give full play to the potential properties of the metal material in use. In many mines, the use of this type of joint head, after a large impact, hard roof under the load conditions, will lead to a serious fracture phenomenon of the joint head, will affect the normal production. Therefore, according to customer demand, there are die forging and free forging to enhance the toughness of the joint. Shuangzhi Coal machine has been committed to the production and sales of hydraulic support parts, the main products are column, jack class, structural parts, connection first, more knowledge of hydraulic support pay attention to shuangzhi oil cylinder official website

Hydraulic cylinder can be referred to as hydraulic cylinder, hydraulic system is the executive element. From the function point of view, the hydraulic cylinder is the pressure energy into mechanical energy conversion device. So how does a hydraulic cylinder work? According to the structure and working characteristics, the hydraulic cylinder can be divided into single action hydraulic cylinder, double action hydraulic cylinder, combination hydraulic cylinder, swing hydraulic cylinder and telescopic hydraulic cylinder. In general, we commonly used is the use of piston rod double - acting hydraulic cylinder. We also generally understand the principle of double acting hydraulic cylinders, so today we will look at the principle of single acting hydraulic cylinders. The so-called single action hydraulic cylinder, is that the pressure oil can only supply oil to one side of the piston chamber in the hydraulic cylinder, the oil pressure pushes the piston to move in one direction. When the motion is complete, the piston returns to its original position by its own weight or other factors. The double-acting hydraulic cylinder may supply oil to a cavity with or without a piston rod at one end. By changing the direction of the oil input, the oil pressure pushes the piston up and down or to the left and right. If you need hydraulic cylinder accessories, you are welcome to contact us in time