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2005-2009 price trend of China's steel grating

Sun, 02/12/2012 - 9:32PM by koukiya 0 Comments -

Hot dip galvanized steel grating known as power engine, using the flat cross-arranged in accordance with the spacing and bar, hot dip galvanized steel grid plate and welded into the middle with a square lattice of an iron and steel products, mainly used to do the drain cover, steel platform board, ladders, treads and so on. Flat steel material Q235 hot rolled flat steel bar commonly used after a Twist of square steel. Process material steel grid plate is generally made of carbon steel production, the appearance of hot dip galvanized, you can play to prevent oxidation. Can also be made of stainless steel. Grating with ventilation, lighting, cooling, non-slip, explosion-proof performance. Steel grating surface can be punching to increase skid resistance. Flat steel also can be used to type I, flat steel production. Grating production methods: pressure welding machine and hand-made two. Machine the use of high-voltage resistance pressure welding pressure welding robot automatically bar placed across a uniform arrangement of the flat steel bar pressure welding, welding power and fluid pressure into flat steel, which can be solid solder joint. stability and high strength high quality steel grating. Handmade grating is on the first flat steel punching, and then the bar into the hole in the expanded steel grating, bar and flat steel gaps, but not every point of contact welding, welding is not firmly , the intensity decreased. The weight of steel grating after edging and surface treatment of the theoretical weight. Hemming, opening and cut, the actual weight and the theoretical weight of a difference. The weight of steel grating, the package side and hot dipped zinc coating, the weight will increase in accordance with the provisions of the preceding table, the general industrial platform, the load flat steel spacing 30mm grating weight gain about 12%; load flat steel spacing 40mm grating increases about 14%.
Weight calculation and steel grating steel grating delivery of settlement and reunification of the theoretical weight basis. For less than 1 meter in length, steel grating, or the need for special edging steel grating, due to the increase of the package side panels, weight with the increase. Grating production process can be divided into: manual welding and machine bonding two. In general machine bonding using high-voltage resistance pressure welding robot automatically bar placed across a uniform arrangement of the flat tube cutting machine pressure welding, welding power and fluid pressure into flat steel, which can be welded solid point, high stability and strength of high quality steel grating. The way of manual welding is the first in the hot-rolled flat steel punching, and then the bar into the hole in the spot, bar and flat steel gaps, but not every point of contact welding, so welding is not firm, the strength decreased. We recommend that customers chose to mechanical bonding steel grating products. Its characteristics are: 1, high strength: strong mesh bonding structure, high bearing; 2, light structure: easy lifting and other characteristics;, beautiful appearance, durable: hot-dip zinc coating gives a quite good the corrosion resistance of hot dip galvanized steel grating surface gloss appearance;, ventilation, lighting, heat, explosion-proof, non-slip performance;, anti-plot dirt



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Wire industry, the domestic market supply and demand analysis

Sun, 02/12/2012 - 9:31PM by koukiya 0 Comments -

Barbed wire, mainly used in the late slow action of infantry and gasoline engine, and divided the two kinds of fixed and mobile. Fixed wire barbed stakes and wire to build from; mobile wire is transported to the battlefield to temporary mass-produced by the factory, a diameter of 70-90 cm, about 10 meters long, speed settings, anti- The breaking strength is high and late slow action of the car and armored vehicles and other vehicles. Lift the barbed wire, people usually associate with the battlefield, prisons, border lines, and special scene. Indeed, barbed wire invention, are widely used in military and defense works; now in peacetime, the application of barbed wire is also very extensive.
Wire cage, also known as gabion mesh, gabion mesh, honeycomb grid, and Renault pad. The wire cage is a wire can hold the stone flood control flood control. The wire cage is mainly used for flood prevention and flood control works. At first, kitchen ice maker stone thrown into the river, river rapids, stone is easy to be washed away, and later with a bag filled with stones thrown into the river, the bag is not strong enough, and later evolved into the preparation of-stone cage net. Nice wire cage, with the advantages of environmental protection, construction convenient, affordable, convenient, and so very popular. Expand the use of wire cage. Now the wire cage can be used for flood control flood control, river refurbishment, water conservancy construction, reclamation, channel reinforcement, protection and safety of the mountain protection, embankment protection, rockfall protection, slope protection, road safety, isolation, landscape construction and other natural disasters protection.
The Ming Dynasty, Anping Tambay village there are organizations Luo Juan rural workshops. National entrepreneurs of the 19th century, the introduction of advanced technology from Tianjin Wei to Aeka. After the war, the enterprise development have been alleviated, the state-run built in Anping Xing Wire Mesh Factory Anping netting razor barbed wire fence has laid a foundation. Anping wire after the reform and opening flourish. The origin of the barbed wire in the plains of Anping. Anping from the smelting and wire drawing, milling, plastic coated, machine welding, manual weaving, dip, packaging, and barbed wire deep processing industry, the formation of chains of the industry. The development of barbed wire to bring huge profits to the local economy, to solve the local labor force. The origin of barbed wire - Anping has one hundred assets of millions of 300 enterprises, large-scale advanced machine over a million units. Now the barbed wire of the enterprises pay more attention to open up foreign markets, many college graduates have come to Anping, add a source of strength for the development of barbed wire.



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The advantages of laser cutting machine

Sun, 02/12/2012 - 9:31PM by koukiya 0 Comments -

Laser cutting machine efficiency is the fastest, highest precision of cutting, the baby car seat mould is generally smaller. Plasma cutting machine cutting speed cutting surface of the slope. Flame cutting machine for carbon steel in thickness. Scope of application of cutting machine cutting machine application of metal and nonmetal industries, in general, non-metallic industry points in detail, like cutting stone by stone cutting machine, water jet cutting machine, zigzag cutting machine, cutting fabric and plastics chemical products used in laser cutting machine, blade, cutter, cutting the metal material flame cutting surface, plasma cutting machine, flame cutting machine which is divided into the CNC flame cutting machine, and the manual two categories, manual category , a small sports car, semi-pure manual and CNC gantry CNC cutting machine, the cantilevered CNC cutting machine, a desktop bar cutting machine, the intersecting line of CNC cutting machine and so on!
Metal laser cutting machine in use, the cutting head will walk according to the cutting path set, but different material, different thickness, different cutting, laser cutting head height is the need to adjust the control of the cutting nozzle and cut the surface distance decision to incision quality and cutting speed of one of the main factors. Metal laser cutting machine in addition to select the appropriate cutting nozzle type and pressure parameters according to cutting conditions between the cutting head and steel plate height need to cut the material thickness changes in the different thickness of steel plate, the use of different parameters. Cutting nozzle should be adjusted to the appropriate height.
Equipment during use, in order to ensure high quality cuts, the cutting tip to cut the workpiece surface height must remain basically the same. As the speed of laser cutting machine, the operating personnel with the eyes, hand-tune the operation is not, the speed of response is certainly not. Especially when cutting sheet metal, or the surface texture, flatness, or cutting the processing environment is limited to keep wire nail making machine of stability is important.
In laser gas cutting kerf at the material to be gasified, which requires high laser energy density in order to prevent the material steam condensation in the walls of the kerf, the thickness of the material appropriate to exceed the diameter of the laser beam. Therefore, this kinds of processing methods only apply to avoid the spray liquid materials, in fact, it does not apply to most steel materials previously discussed does not apply to the following materials: wood and ceramic materials such material under the laser irradiation, gas , but it will not re-condensation and vaporization can not cut the workpiece thickness is greater than the beam diameter.



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Operation of diesel generators to eliminate instability

Sun, 01/29/2012 - 10:36PM by koukiya 0 Comments -

Under normal circumstances, the shaft and the bearing bronze ball valve film there, played the role of insulation. Axis of the low-voltage, which can protect the layer of film lubrication properties of insulating materials, there is no axis. However, when the shaft voltage of certain values, especially in the car is started, the formation of oil film bearing has not yet stable oil film breakdown voltage and the discharge axis to form loops, bearings and shaft current through the metal contact points, because there is no metal contact , the current density of these points, resulting in instant heat, so the local pillow melting bearings, roller bearing pillow melting alloy under the pressure of flying, so the inner surface of the bearing burned a small coal mines. In general, the axis of the hardness and mechanical strength higher than the bearing pillow melting alloys, usually show symptoms of the pressure bearing surface area is being wound up arc.
Diesel shortage caused by power line causes and simple way to determine (for the oil line pump system)
Diesel supply is the Department's work in clean air into the cylinder in a timely manner, and according to different requirements of the working conditions of diesel engine combustion and atomization quality time into a certain amount of diesel fuel, and can lead to enough clean air cylinder, whether working conditions , injected into the combustion chamber in order to meet the quantity and quality of fuel atomization, when the spray can be Rudeng, these power windshield wiper blade cords to ensure that the basic conditions and the diesel engine economy. Through the use of diesel engines, some parts of the supply line will be due to wear, fatigue, aging and other reasons, the work of the deterioration failure. When the supply line of dust, dirt, glial cell adhesion and deposition of carbon deposits in the combustion chamber to clogged filters, oil Road, nozzles, valves, etc. to prevent the diesel can cause various problems.
China diesel generator diesel engine operation network is to introduce you to the attention of key points: the point of sale, according to agricultural production of small diesel engines and several manufacturers reflect sales in recent years after the "three guarantees" required maintenance or other reasons during the small diesel engine failure , a considerable majority of diesel engines and weak, can not start, burning bush, piston rod bending or damage to such failure. Cause of these failures should not have been the main reasons are friends of farmers do not know how to properly use and maintain diesel engines. Such as the inability to say the engine can not start, just do not attach importance to the role of air filter caused premature wear and tear caused by the piston rings. Some air filters are not perfect quality, no case has been shaking crack a few days, friends of farmers can not attach importance to these problems often are looking for casual bundle of wire or rope look, in fact, when the air filter has no effect no effect, it is very easy to sand into the cylinder, resulting in premature wear of piston rings. Secondly, it comes to burning bush, but also because they do not understand the importance of oil to keep oil, does not matter much less does not matter, so when you burn easily lead to lack of oil bearing. Again, said piston rod bent or damaged, the main reasons is that in the course do not pay attention, resulting in roll-over, but do not know how to turn off immediately, resulting in the mud sucked into the cylinder, which will inevitably lead to rod bending or piston damage.
With accuracy and reliability of silent diesel generator engine life and work of the economy and dynamic performance has a significant impact, diesel after a long period of use, mainly due to the camshaft to make progress, the exhaust cam wear and the original geometry change, so that transmission valve body parts with the relationship between changes caused by diesel power down, fuel, water temperature increased, such as failure, irregular maintenance can cause the valve timing changes. Therefore, the diesel engine structure, purpose and speed vary with the gas phase are not the same, the engine repair process, the need to use the engine performance requirements and conditions, the valve timing through testing, inspection, adjustment to get the right or close to a reasonable state.



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Bearing in purification chamber diesel generator maintenance

Sun, 01/29/2012 - 10:34PM by koukiya 0 Comments -

Liu, deputy director of AQSIQ on average in the forum, said the device works as a device quality and safety supervision of the last line of defense, to become China's important efforts to build quality and power point. He hoped that China major industries around the state supervision of industry and regional economic revitalization and development strategy, energy saving, low-carbon economy, environmental power diesel generator, strengthen exchanges and cooperation in other fields, the introduction of the developed countries of the advanced concepts, technologies and methods, equipment, supervision to participate in international dialogue and enhance international voice.
Tianshi Hong said that China summed up water conservancy, electric power, machinery, metallurgy and other industries in the implementation of major projects in plant engineering experience, drawing on international practice of consulting engineering industry mature, established and implemented to adapt to China's national conditions of equipment supervision system. At present, 241 enterprises to obtain state approval of the equipment qualification supervision units, 13,622 people had registered facility supervising engineer to obtain travel steam iron credentials. Meanwhile, equipment supervision system standards to achieve a breakthrough, a Chinese plant engineering consulting industry's first national standard "equipment Project Management Regulation" was implemented in July 2011.
Strict implementation of the fuel sediment filtration system, diesel filling shall be at least 48 hours before precipitation access. Diesel should be consistent with the provisions of the standard model season. Tool to clean special fuel. Fuel and oil storage areas should be clean to avoid dirt mixed with fuel and accelerate even the wear and reduce the couplings life.
Maintenance of strict technical specifications, fuel filter 100 hours, 500 hours of tank cleaning, if found to effect the timely replacement of filter break loss and may not be removed while the DC-type oil. Couplings under normal operating conditions in bmw 3 series car mats should be checked once demolished. Check to ensure that the demolition site, hands, tools, and cleaning the oil clean to avoid contamination of couplings. The demolition operation shall not Luanqiao Cookin, not cluttered in the cleaning, not even pieces together, and other non-wash basin, to avoid bumps, scratches. Changes in the assembly, the assembly location are not free to work the machine does not meet the requirements of some purpose. Install a valve in tight tight seat and nozzle caps, they should be tightened as to ensure that the fuel injector assembly and fuel pump after a good technical condition.



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S195 diesel generator heat engine difficult to start an instance of failure

Sun, 01/29/2012 - 10:33PM by koukiya 0 Comments -

Diesel generator crankshaft is one of the main parts, its role is to do each cylinder diesel engine power to rotary motion after collection the way out. For multi-cylinder perkins diesel generator, it has to withstand continuous acting upon the piston rod stroke came from the force, to pass into a torque transmission mechanism, while also promoting the cylinder through the piston rod suction, compression and exhaust gas, and drive the valve train and other assistive devices. Crankshaft - flywheel assembly structure, usually non-oriented journal, connecting rod journal, crank, front-end axis (ie the free end of the crankshaft), back-end (crank out) block flange and balance (or balance weight) and some other composition.
Multi-cylinder diesel generator set is a high-speed rotation of the crankshaft pressure reducing valve. Changing it to withstand the gas pressure and inertia force and the centrifugal force generated when rotating the role, therefore, require it to have sufficient strength and rigidity, but also to wear, well-oiled, reliable, and installation of fixed or restricted to the axial positioning of the axial displacement, in addition, the crank arrangement should be reasonable in order to meet the engine firing order and the requirements to run smoothly.
Diesel generators supply network for your Special Report: China's State General Administration of Quality Supervision, Inspection Quality Management Division, Tian Shihong 2, here at the "2011 Equipment Project Management International Cooperation Forum", said in a low-carbon industrial development, especially construction of new energy sources, China will further expand the equipment supervision in wind, solar, biomass and other renewable energy services.
He said the focus in China to promote energy saving projects, such as the transformation in the boiler furnace, electrical system, cummins diesel generator set, nitrogen and phosphorus removal and other projects, monitor the implementation of energy conservation standards, the use of energy saving technologies and products to achieve emission reduction targets.



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Welding Products Import and Export Analysis

Tue, 01/17/2012 - 9:26PM by koukiya 0 Comments -

According to the Chapter 41 domestic welding machine, cutting machine business last year, statistics show that industrial output value of 6,611,734,100 yuan, an increase of 15.31%, the growth rate dropped nearly 16 percentage points. Among them, export delivery value of 1,200,626,000 yuan, an increase of 18.89%. Although the growth rate of output indicators for the downward trend, but the welding companies the ability to respond to environmental changes have been significantly improved.
Branch experts also said that this year steady change is that the industry product mix would be adjusted. Demand forecast from the market, will be with the welding technology, process development and production mechanization, automation level and changes in the composition of various products, especially compared with, such as the exchange decreased the proportion arc welding machine, automatic, semi-automatic welding, in particular, are CO2 welder, welding sets dedicated a significant increase in demand.
According to statistics, China's welding equipment companies have an annual output of more than 10 million, a $ 500 million, eight reached 3 billion yuan, accounting for over $ 100 million business for more than half of business statistics. But compared with developed countries, China welding equipment industry growth in the number of enterprises is still very impressive, reflecting the majority of welding equipment companies small and weaker.
From the industry trend, the production of generic plastic injection mould equipment without a certain size, in raw material prices, the rising cost of human resources situation, competitiveness will be significantly reduced. In the competition, through the survival of the fittest, continue to carry out the integration, merger, will be our industry, one of the themes coming years. Especially during the downturn in the economic development, the subject will be more apparent.
From the product technology itself, but also need to be further improved. Welding products, imports will continue to increase, the total import value of the domestic market still accounts for about 50%; domestic exports of welding over the years, no more than 6% of GDP.
Currently, the domestic production of welding products market oversupply, competition, the majority of the production, operation difficult. In the product composition, the general oversupply of general-purpose welding machine: high reliability, multi-functional automatic, semi-automatic welding machines and special sets of welding, special welding market demand growing faster, still has to import some welding; in the domestic market structure on and imported welding basically evenly divided, although the total number of Taiwan-made welding dominant, and in the sales of the imported products were accounted for about half.
Although the export situation of domestic welding performance improvement due to the introduction of product localization and implementation, and joint ventures, foreign-funded enterprises to expand production scale, export growth, exports and gradually by the AC arc welding machine, welding machine DC-based rotation shift automatic, semi-automatic welding machines and welding sets, but the same type of imported products, the gap is still great.
In view of the welding machine industry within the coming period will be more intense market competition, which will force the welding industry to ice machine accelerate the pace of technological progress, improved product technical composition, accelerate the development of new products, and actively adjust the product structure. In recent years, there is a certain strength of the enterprises to actively invest in new product research, development, or for a particular industry, the development of the user needed special, dedicated and complete sets of welding equipment, has achieved significant economic benefits. Enterprises according to their characteristics, to learn foreign advanced processing equipment and technology to small and specialized, small and special, small but strong direction.



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Diesel generator set market price forecasting analysis

Tue, 01/17/2012 - 9:25PM by koukiya 0 Comments -

Many modern techniques and equipment have emergency power and security unattended requirements. These automation requirements, usually including automation and automatic operation. Automation is the automatic diesel generator speed control, pressure regulation, load and other operating devices can be automatically mean auto-start and load, automatic shutdown, automatic parallel and solution columns, automatically supplies and monitoring, which are the basic electricity users (microwave power station, Marine Corps, etc.) and backup (emergency) power users is a must.
In recent years, automatic gerador diesel, domestic and international markets in the greater development, expanded use of automation unit. Broadcasting, telecommunications, computer centers, hospitals and other high-reliability requirements, need to be able to automatically supply automation generator. Airport, mining, oil drilling platform, tunnel construction site, islands, nuclear power, the man-made satellite ground station and education center, banks, insurance companies and other financial services, water, buildings, etc. are widely used automatic generators, to ensure normal power supply. This shows that the automation generator power system an important guarantee for a variety of electrical equipment.
Automation unit performance requirements of users continues to improve. With the increased level of automation, automatic performance characteristics are close to an uninterruptible power supply and unattended long-term performance requirements. Some remote mountainous areas and islands plant automation unit is used to perform remote measurement, remote control, such as noise monitoring wave. In order to solve completely uninterrupted power supply requirements, the automated unit startup and loading performance increased year by year.
To speed up the development of remote areas. The development of remote areas, diesel power generation equipment and a huge market potential. Many remote areas around the world, every country has a wealth of resources, but still far from power supply network. Modern technology and all have adequate power supply. Diesel power generation pipe bending machine, to quickly meet the requirements of the best choice because it saves investment, fast, power supply network can be built, so in recent years, many countries in the development of remote areas of diesel generator sets. Therefore, the power needed for development in remote areas, will be accompanied by diesel power generation equipment and common development.
Power to carry out active leasing market. United States and other Western countries crew rental market is very active. Magneteu produced the type of highway 10-135 kilowatts power plant, the design of the trailer rental market design capability, the unit is a low noise type, you can run in a residential area, safe and convenient transfer circuit coupled to a larger tank to ensure continuous operation unit 11 hours or more. Lease a variety of domestic use of temporary diesel generator power demand, but so far, no specific rental business. Many ZuLinZhe rely on the support departments, or find temporary power relations. On the positive electricity market, easy to use, to increase their temporary social and economic benefits, the expansion of regional service point of view, diesel power generation equipment industry are the advantages of leasing. Lanzhou, a construction site, two 90 kilowatts motor rental units, both to help solve the case of an emergency, on-site rental units of electric power construction business support, but also increase economic efficiency.



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China printing machine industry technology trends

Tue, 01/17/2012 - 9:25PM by koukiya 0 Comments -

Printing companies in the wire mesh machine during operation, printing the correct colors to restore the quality of printing plays a vital role. Pad printing machine in the process, look at the wealth of previous experience in printing, billion Bora analysis from various factors which determine the color matching process printing: printing machine printing materials, including material, color, surface characteristics, the number of printing, pad printing machine with ink, the color kind of production and many other factors impact on the printing color reproduction.
Ideally, the etching plate is transfer all the ink to be printed on all objects, in the build process (close to 10 microns or 0.01 mm thick was attached to transfer ink to the substrate) pad printer easy by air, temperature, static size effect. If the etching plate from head to transfer adhesive to the substrate throughout the process, the evaporation rate and dissolution rate precisely controlled in equilibrium, it is considered a successful printing. If evaporation is too fast, even before the ink is absorbed dry. If evaporation is too slow, not yet formed a gel ink surface, easy to make the plastic head and matrix attachment.
With India ink absorption products: suction pads etched on the board after the big rise in the ink department, this time, this layer of ink has a volatile sector, leaving a department of the ink was dry on the surface of the object to be printed is more conducive to a close with plastic head with. Plastic head shape to be able to produce a rolling action to drain the ink etching the surface of the plate and excess air.
In the production process of ink and glue the head with the best of all the board is etched all the ink is transferred onto the object to be printed, in the production process (close to 10 microns or 0.01 mm thick was attached to the ink transfer to the matrix) pad printing easily by air, temperature, static size effect. If the etching plate from head to transfer adhesive to the substrate throughout the process, the evaporation rate and dissolution rate precisely controlled in equilibrium, it is considered a successful printing. If evaporation is too fast, even before the ink is absorbed dry. If evaporation is too slow, not yet formed a gel ink surface, easy to make the plastic head and matrix attachment.
Currently, the high degree of automation of the printing machine is more common rotary conveying of the printing machine, the printing process is fully automated. By the impact of automation, the vast majority of companies consider the quality of the grupos electrógenos process there are still problems in response to imperfections, even if such a printing machine, in order to complete a truly automated printing also faces many challenges.
Universal automatic printing machine is relatively rare, but specific products targeted at automatic printing machines still have a lot of surprises. For example, automatic printing of the CD printing machines, automatic bottle cap pad printing machines. Printing machine automation in essence, means the automation of product handling, pad printing as part of the change is small. New technologies of information broadened our horizons, infiltration of other printing technologies, let us generate new ideas, customer requirements will inspire the passion printer manufacturers.



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Machinery News

Sat, 12/31/2011 - 1:33AM by koukiya 0 Comments -

According to China motor grader Association Mining Machinery Branch of Statistics, 2006 to 2010, China’s excavator production and sales increased from 51,800 units to 165,800 units, four years more than tripled, the annual compound growth rate of 33.76%. According to the Chinese construction machinery industry is expected to learn Mining Machinery Branch, common conveyor belt in the next five years the average growth rate of about 20%. In addition, the product of high barriers to entry, market demand, higher than the gross margin level hydraulic and pneumatic components manufacturing industry average. Excavator cylinder is constant up tank dedicated core business, operating income in 2010 of its jaw crusher income of the total 74.47%, in January 2011 to June, its main business revenue accounted for 81.57% of income . Special cylinder production excavator excavator according to the tonnage corresponding to different lines in different settings, for standardization, mass production. In recent years, the rapid rise in orders for company products tanks, fuel tanks in domestic market share of dedicated excavators up to 20% in 2010, January 2011 to June of 23.18%. Company’s existing production capacity has far unable to meet customer demand for high-pressure cylinder products, capacity utilization during the reporting period to achieve a high level of production at full load condition. Companies from the breakthrough capacity bottlenecks, expand market share and enhance their strength, the purpose of proceeding to consolidate the industry status, the implementation of capacity expansion plans. Hang up the fuel tank fuel tank excavator brand excavator main customers for domestic manufacturers, the rapid rise of domestic excavator brands and the rapid increase market share, the company will raise production capacity to digest the tender to lay a solid foundation. With annual production capacity of fuel tanks Hengli 200,000 dedicated vacuum blister forming machine construction projects, capacity constraints have been alleviated, and the company’s major customers in the domestic market share increase and foreign customers to develop, market share, the company will have increased dramatically. Excavator industry’s overall growth, raise investment projects for the company’s production capacity to digest provides a broad market space. Meanwhile, the China Construction Machinery Industry Institute of Mining Machinery Branch prediction, with the major domestic brands excavator manufacturers expansion plan, the next five years domestic excavator brand market share will reach 45% to 50%. To 2014 total 340,000 units of domestic excavator, excavator market share of domestic brands 40% calculation, when the domestic brands excavator production will reach 1.36 million units. With the rapid growth of domestic demand for excavators,cone crusher market demand is also showing rapid growth trend. The China Construction Machinery Industry Association Mining Machinery Branch of China’s historical excavator production statistics based on the usual assembly 4 each excavator tank dedicated to estimates, China’s excavator market demand from dedicated cylinder 2006 209 600, increased to 663,200 in 2010.



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