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January 27 2014

helenwu007

How to Solve the Difficult Start of Concrete Crusher

The major reasons that may cause the difficult start of concrete crusher are in the following:

1. The lubricating grease used by the concrete crusher is too sticky and its stiffness increases when the temperature of the environment is low. When starting concrete crusher, the rotation resistance of the movable jaw axle is big, which cause the start is difficult.

2. The last halt of concrete crusher does not evacuate the ores inside the crushing chamber according to the operation specification. When restarting concrete crusher, since there is ores inside the crushing chamber, the crusher will have to sustain big load when it is started, so that the start will be difficult.

3. The V-belt is too loose so that it will slide during the transmission process, which will cause much loss of the power when starting the electromotor.

4. The bearing of movable jaw and the axial bearing of the rack of concrete crusher are too much abraded, which cause the bearing roller to stagnate in the rotation process of the movable jaw.

When the concrete crusher is difficult to start, the experts of Sanme Machinery suggest that the customers should take the following responding precautionary measures according to different reasons:

1. Choose the lubricating grease with proper stickiness for lubrication.

2. Before stopping concrete crusher, let it run without materials in it for some time to completely discharge the materials in the crushing chamber.

3. Timely adjust the tightness of the V-belt.

4. Intensity the daily maintenance of concrete crusher and make sure that this equipment is in a goo condition. Strength the efforts of supervision and examination and when there is something abnormal, timely report and deal with it.

At present, Shanghai Sanme has formed a complete product chain that regards crusher, screen machine and sand maker as the main product while feeder, belt conveyor and powder separator as the mating equipments. We offer high quality impact crusher, stone crusher, rock crusher, jaw crusher, cone crusher for our customers from all over the world. The Portable Crushing Plant, Traction Crushing Plant, New Sand Maker, SMH Series Cone Crushers and Symons Cone Crusher independently developed by the company occupy the top market of mine crushing machinery.

 

 

January 21 2014

helenwu007
As is well-known, stone crusher bearing undertakes the entire load of the stone crusher, so favorable lubrication has a great impact on the maintenance of the stone crusher’s bearing. It affects the life of the machine and the operation rate directly, thus the oil that is injected into the stone crusher must be clean and sealing property must be very good.
The Precautions and Maintenance of Stone Crusher
helenwu007
With the national economic development brought by the Reform and Opening up Policy, market demand is driving the development of impact crusher. Among the basically used five types of crushers, impact crusher belongs to the machine which crushes brittle material mainly with impact power.
The Influencing Factors of Impact Crusher Production Capacity
helenwu007

How to Maintain the Cone Crusher

As one of the most widely used large equipments, the cone crusher is playing a very important role in constructions. There is no doubt that all of us want the cone crushers to work effectively, since it is so, I think that all of us should master some basic knowledge about maintaining the cone crusher, and let me say something about it!

At first, I just want to say something about why the cone crusher needs maintenance, and knowing about this is the most imperative thing we have to do. There is no doubt that maintaining the cone crusher effectively and regularly can increase its service time, what is more, effective and regular maintenance can improve not only the working efficiency but also the output of the cone crusher. At this, I think that you have already knew that it is crucial to maintain the cone crusher regularly and effectively.

Generally speaking, according to their time of duration, the maintenance of the cone crusher can be divided into 3 categories, there are small maintenance cycle, medium maintenance cycle and big maintenance cycle, and during each of these cycles, we have different jobs to do.

The small cycle maintenance of the cone crusher usually lasts for half of a month or a whole month. During the small cycle maintenance, users should check the tile of the bowl, the abradability of the taper sleeve and the straight block set, and users should also check the diastema between gears in the cone crusher, checking the lubrication device is also necessary, you can inject the lubricating oil into the machine when necessary, what is more, please keep the major components of the cone crusher clean by cleaning it regularly. Although these jobs are easy to achieve, but users should do them as carefully as they can, or with the uncareful maintenance, the cone crusher can not be well maintained, as a result, it will retire early.

The medium cycle maintenance of the cone crusher usually lasts for four or six months. During the medium cycle maintenance of the cone crusher, users should check the lining plate, the eccentric sleeve, the cone sleeve, the straight set, the bowl tile and the like carefully, once finding there is something wrong with them, users should immediately repair the components, if the condition is very bad, users may need to replace the old component with the whole new one. If users can maintain the excellent cone crusher with the medium cycle maintenance, absolutely, they will get a cone crusher which has high working efficiency.

The big cycle maintenance of the cone crusher usually last for four years,once finding there is something wrong, users should immediately repair it, and replacement is necessary if the condition is really bad.

 At present, Shanghai Sanme has formed a complete product chain that regards crusher, screen machine and sand maker as the main product while feeder, belt conveyor and powder separator as the mating equipments. We offer high quality impact crusher, stone crusher, rock crusher, jaw crusher, cone crusher for our customers from all over the world. The Portable Crushing Plant, Traction Crushing Plant, New Sand Maker, SMH Series Cone Crushers and Symons Cone Crusher independently developed by the company occupy the top market of mine crushing machinery.

January 14 2014

helenwu007

The maintenance of stone crusher

The maintenance of stone crusher
1.the axletree of the crusher undertakes the whole load of the machine. So good lubrication has great significance to the axletree���s life span. It influences directly to the life soan of the machine and the running rate. Thus, the lubrication poured in must be clean, and in good seal. Please fill the lubrication to the rolling bearing, all the gears, live bearing, roller bearing.
2.The newly installed strake must be examined regularly, because it is easy to loose connection.
3.Pay attention to each part of the machine about whether it is work normally.

Trail run of stone crusher
1.the machine should be installed on the plane concrete ground, and fixed with the stone bolt.
2.When stalling, pay attention that the main machine is vertical to the horizontal.
3.Configuring the power line and the control switch according to the driving system.
4.After installment, check the bolt and the door of mainframe.
5.After examination, you can step into the dead load trail run.

Treatment and testing of stone crusher
Preparations:
1.Tools: wrench, pliers, screwdriver, hammer,shovel and so on.
2.Necessary substitute accessories: short link chains of all kinds, chain stiching, bolt, nut and the insurance whistle of the crusher.
3. Lubricating oil and turbine oil
Examination and handling:
1. Make sure that the connection with each part is intact, complete and fasten. And the reducer and the hydraulic coupling are not having the condition of oil leakage and oil penetration.
2. The signal must be delicacy and reliable, no signal no starting up. The spray sprinkle must be in good condition.
3. Please hang the power cable and the pilot wire tidily. Make sure that they are not extruded.
4. Sweep the coals, sundries around the hand piece, electromotor and the reducer.
5. The walking machine of the reversed loader must stable and reliable.
6. Ensure that the safety nets of crusher and the protector will not transform and lose efficacy.

The operation of stone crusher
1. Power transmission by switching handlebar of the magnetic starter.
2. Press the button twice or three times.
3. Switch on the machine and spin one or two circles.
4. Combine the reversed loader and crusher together.

The stone crusher normally named crusher, including crusher and sand making machine. It is applied in many areas, such as high speed railway, expressway, urban renovation project, the construction of water conservancy project and other areas where need lots of gravels. Now there are many kinds of stone crusher equipment on the market, they are jaw crusher, impact crusher, cone crusher, hammer crusher, etc.. Other auxiliary equipment include vibrator feeder, conveyor belt, vibrating screen and sand washer.

In a word, after many years of effort, now the quality of stone crusher is quite well and it is now of first class technology.

Tags: stone crusher
helenwu007

January 10 2014

helenwu007
According to different shaking modes of sewing jaw, jaw crusher can be divided into three types---simple oscillating jaw crusher, complex oscillating jaw crusher and comprehensive oscillating jaw crusher.
Practical Jaw Crusher is Now a Trend
helenwu007

Different Types of Jaw Crusher

Jaw crusher is a type of rock crusher. It can be divided into two major types according to its different working principle, Double-toggle jaw crusher and overhead eccentric jaw crusher. Of course, both of the two types of jaw crushers can be used to crush stones. You need to choose the right type when you need to use a jaw crusher. This article tells the differences mainly from three aspects: structures, working principle and selection.

Though they do the same function in crushing rocks, the structures of the two types are different. The double-toggle jaw crusher consists of a swing jaw, a stationary jaw, an offset eccentric shaft, a pivot point and a double set of toggles. On the contrary, the overhead eccentric model contains a flywheel, adjusting wedges, hydraulic rams, a pullman, a sizing gap and a crushing chamber.

When materials are poured into the machine, the jaw crusher crush stones into small pieces by the moving of the plates. One of the plates is stable, while the other is moving. The moving plate move against the stable one to crush stones, and the two plates are made of different materials which makes the two plates have different breaking point.

When we need to choose right jaw crusher to meet our needs, we need to consider the dimensions of chamber itself, the design and what the stationary plate is made of. When we need to crush the rock desired, a less-durable plate can suit our requirements.

At present, Shanghai Sanme has formed a complete product chain that regards crusher, screen machine and sand maker as the main product while feeder, belt conveyor and powder separator as the mating equipments. We offer high quality impact crusher, stone crusher, rock crusher, jaw crusher, cone crusher for our customers from all over the world. The Portable Crushing Plant, Traction Crushing Plant, New Sand Maker, SMH Series Cone Crushers and Symons Cone Crusher independently developed by the company occupy the top market of mine crushing machinery.

Tags: Jaw Crusher

January 08 2014

helenwu007
Based on the crushing characteristics, the gradation of the materials and the volume of the final product, it is essential to choose the right stone crusher and to make sure that the machine is made with experienced craftsmanship. Run at lower speeds, rock crushers are capable of processing materials into smaller particles with less consumption of energy. In most cases, the semi-products are irregular and require further crushing, washing and selecting.
Three Procedures in Sand Manufacturing
helenwu007
Jaw crusher is used to the medium size crushing of all kinds of ores and large materials and widely applied in the industries of mine, smelt, building, highway, railway, water conservation and chemical engineering. The highest compressive strength of broken materials is 320MPa. The performance of it is big-broken, granularity-product, simple-construction, reliable performance, convenient maintenance and low operating costs.
Practical Jaw Crusher is Now a Trend
helenwu007
Impact crusher is wildly used in many sectors, such as mining ,transportation, chemical industry, energy construction and so on. As for crushing and screen, I have to say that the impact crusher is a wise choice. Because it has many advantages, first it is made up of reasonable structure; secondly, it is of high productivity; thirdly, it is easy to operate and maintain which can save both much money and time; fourthly, it is of safe performance which in my opinion is the very important, as life is valuable. But the most important advantage of the impact crusher is that its finished powder is in good cubic and without the deficient of tensility and cranny.
Something about the Impact Crusher
helenwu007
Cone crusher is a high energy crusher with German newest technology and the world’s advanced level. It is obviously different from the design in the constructure of traditional cone crusher and centralize on major merits of each known type of cone crusher so far. In comparison with other types of crushers, the performance and characteristics of cone crusher is more energy-saving, high-efficient, environmental.
Certain Details of Multi-purpose Cone Crusher
helenwu007

Qualified Jaw Crusher Contributes to Sand Production Line

Qualified jaw crusher is rather important in construction and building area. It can make large lumps stone, cones and ores into small sizes materials for more applications. If you are one of the workers, who are engaged into the construction jobs, you will see how powerful they are. The strong power is supplied and provided to handle different shapes and sizes hard materials. Nowadays, with the development of our technology and society, the machines are more durable and perfect to use. Besides, they can withstand more robust materials and harder to wear.

In the sand making line and gravel production, as we all know that the machine is necessary to be well controlled and operated. Having mentioned that the vertical shaft impact crusher is also useful and functional to make sand and other materials. It has simple but powerful structure and handling strength. Each parts is useful for the whole working process then. Considering the situation of the decreasing natural sand, suppliers are trying to develop the machine quality and properties of a series of sand making which are dedicated to the production of artificial sand.

Also, nowadays, machines are equipped with super and new properties and characteristics of good grain shape, little attrition, high into sand, adjustable fineness modulus, low cost, etc. So compared to the previous products, current machines are more suitable for crushing materials of high hardness such as granite, basalt and marbles and so forth. When it works, stones, ores, marbles can be feed.

Jaw crusher has many advantages and features for different applications. The sand making line and other production making process requires the machines to be qualified and great properties. There will be more perfect and super structure cone crusher, rock crusher and other types crushers available. More information about how to operate and what the materials are most suitable are supposed to be found in the website www.sanmechina.com It is a leading supplier of diverse types crushers and has been welcomed by most consumers.

We offer high quality impact crusher, stone crusher, rock crusher, jaw crusher, cone crusher for our customers from all over the world. The Portable Crushing Plant, Traction Crushing Plant, New Sand Maker, SMH Series Cone Crushers and Symons Cone Crusher independently developed by the company occupy the top market of mine crushing machinery.

January 06 2014

helenwu007

Stone crushers are in good prospects

Stone crushers are in good prospects and have a promising development trend in the domestic markets. Stone crusher is widely used in mining, smelting, building material, highway construction, railway, water conservancy and other industries and departments. In China, the most important field of its application is the cement industry, paving and mining projects, all of which the demand for large stone crusher machinery is huge.

The stone crusher of industrial manufacturing is a very important part of China’s nowadays construction heat. According to current mining industry development trend, three steps of view are proposed: 1.A trend of stone crusher’s replacement from the old type to new one is now begin. As life expectancy for a small vintage stone crusher is only three to five years, the annual domestic stone crusher replacement rate is approximately 20% of total the total stone crusher demand. There are many domestic stone crushers operating overage, so it is just a matter of time that larger replacement happens. 2. Due to the steady and rapid development of China's economy, cement roads and other infrastructure constructions’ development is bound to pull the growth of stone crusher industry. 3. The construction industry is undoubtedly affected by the post-disaster reconstruction, as the country continues to expand domestic demand and increase projects of infrastructure construction, which led to the stone crusher industry booming. Stone crusher, in some way, provide the country with all raw materials it need, so one cannot imagine how the country’s productivity will be without stone crusher.

Deputy Secretary of China Construction Machinery Industry Association, Jiang Lin, has pointed out that when an industry or product export growth rate reaches to 40% to 70%, it can be called a booming period. However, after some time of development, it will then enter the high risk period for trade friction. China's crushing machinery industry is now in such period. As the world economic integration develops, the new type of rock crusher technology and machines are becoming much more popular than traditional kinds, thus the stone crusher shall has a promising development trend in the modern market. Developed countries use advanced technologies and excuses of maintaining the overall national or regional security to build a large number of export products trade barriers for China.

Therefore, under the rapid growth in the current export situation, we still need to remain sober and rational understanding, and enhance international trade friction dispute prevention awareness. China’s overall size of crushing machinery manufacturing industry has entered the ranks of the international producing countries, but our overall competitiveness and development potential still cannot compete with the developed countries. Most of our infrastructure components are still mainly rely on imports. With the export trade friction increasing rapidly, we are bound to be constrained by foreign competitors and suppliers. Hence, stone crusher’s future development trend should be focused on basic technology and infrastructure components’ study.

helenwu007
Generally speaking, the rock crusher can be divided into two kinds. One is medical rock crusher and the other is mining rock crusher. The medical crusher is mainly applied to the crushing of the calculus, usually in order to avoid the risks that the operations bring, it uses resonation to crush the calculus.
Rock Crusher, Do You Know It?
helenwu007
The tips for maintaining sand washer and those for stone crusher are largely identical but with minor differences. However, the most important thing is your love for machines. I wish your machines would work stably and have long life with tips mentioned above.
Tips of How to Maintain Sand Washer
helenwu007
Sand washer is superior to traditional one in washing sand. First, the loss of sand and stone powder is much less than former one. After washing through the machine, sand will be of high grading and fineness modulus that is able to meet national demand recorded in “Building Sand” and “Building Stone” etc. Second, the wheel bucket sand washer is made up of wear resistance parts other than screen mesh. The machine is quiet durable for this design. Third, sand washer’s service life is long. So, long-term maintenance is not so necessary.
Here Are Several Advantages of Sand Washer
helenwu007
The portable jaw crusher is widely used in mining, building material, highway, railway, water conservancy and chemical industry. All kinds of ores and crushing rocks of medium size such as quartz lump ore have a good effect. Coarse crushing equipment which is often used is cone crusher and jaw crusher. In order to correctly select and rationally use the jaw crusher and cone crusher, now we should briefly analyze the differences of the two kinds of crushers.
Differences Between Portable Jaw Crusher and Portable Cone Crusher

January 02 2014

helenwu007

Cone crusher transmission parts

It will be helpful for operating or choosing a cone crusher if we are able to understand the Cone crusher's internal structure,this paper gives brief introduction.

1, Rack
Rack is rigid frame wall with openings above and below which is used as a support to the eccentric shaft and withstand the crushing material reaction.It requires sufficient strength and stiffness and generally integrally casting with cast steel, it can be replaced as quality cast iron for small Crusher. Mainframe rack required sub cast,then firmly linked together as a whole with bolt. The rack which is casted with thick steel plates can also be used for small cone crusher , but it has less rigidity.

2, Jaw plate and side guard plate
Fixed jaw and moving jaw are both composed with jaw bed and jaw plate, jaw plate is the working part and is fixed with iron bolts and wedges on the jaw bed. The jaw bed of fixed jaw is the anterior wall of the rack, A moving jaw bed hanging on the walls and should have sufficient strength and rigidity to withstand the crushing force, most of which are steel or cast iron so.

3, Cone crusher transmission parts
Eccentric spindle axis is the spindle of a crusher which have great bending-torsion as manufactured with high-carbon steel.Eccentric parts need to be finish machining, heat treated and the bearing pouring with babbitt alloy. Eccentric shaft mounted pulley at one end and install flywheel the other end.

4, Cone crusher control device
Control device has wedge block type, pads type and hydraulic type,etc.,in which wedge block type is generally used, composed of two block wedge in front and back.the front one can moves frontward or backward, resisted the back pushed board; the back wedge block is for adjusting and can mobile up and down with screw arbor and control the size of discharging gate.However the discharge gate of small cone crusher is controlled by increasing or decreasing the number of pad between the pedestal and rack.

5, Cone crusher flywheel
Cone crusher flywheel is to store energy for moving jaw travel and formation for industrial, enable the mechanical work in accordance with the uniform. Pulley also plays as a flywheel. Flywheel is often manufacturing with cast iron or cast steel , minicomputer flywheel is often made into one-piece.Static equilibrium should be paid attention to during the process of Manufacture and installation. .

6, Cone crusher lubrication device
Eccentric shaft bearings are usually centralized lubrication. Spindles and the bearing surface of the thrust plate commonly used grease by hand grease gun oil. Moving jaw angle is very small, causing the lubrication difficulties between the spindle and bearing.It is usually the case we open a several axial bearing oil groove at the bottom of bearing shell, driving a circumferential oil groove in the middle to make it connected, then forced injection with oil pump dry butter lubricating.

It will be helpful for operating a cone crusher of when problems occurs during which if the user is able to understand the Cone crusher's internal structure prior to the purchase.

At present, Shanghai Sanme has formed a complete product chain that regards crusher, screen machine and sand maker as the main product while feeder, belt conveyor and powder separator as the mating equipments. We offer high quality impact crusher, stone crusher, rock crusher, jaw crusher, cone crusher for our customers from all over the world. The Portable Crushing Plant, Traction Crushing Plant, New Sand Maker, SMH Series Cone Crushers and Symons Cone Crusher independently developed by the company occupy the top market of mine crushing machinery.

helenwu007
A sieve is set below the rotor, particle bigger than the mesh size is kept staying on the surface be crushed the grained again.
Working Principle of Stone Crusher
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