concrete machinery knowledge

  The common quality problems of the concrete construction: the concrete strength is unusually high or low. Zhengzhou  Junhua Machinery is a professional manufacturer of construction machine for almost 20 years in China. We are dedicated to supplying our customers with best service and products, our major products include:planetary concrete mixer,planetary truck mixer,If you are interested in our products, please contact us freely: junhua@junhuamachinery.com Causes: 1. The concrete raw materials do not conform to the requirements Mobile portable concrete mixers , for example: the cement is overdue and is affected with damp, the silt content of sand is too big , the sacked cement has a shortage in weight and so on. All these factors could cause the concrete strength is unusually high or low. 2. The mix proportion of concrete mix is not correct, or the measure of the raw material is not accurate Mobile Concrete Brick Making Machine, such as the sand and stone are not weighed, th...

  The period of emergence of the concrete mixer appeared in the mixing form of gravity type. With the increasing requirements of concrete, the forced mixer appeared. Forced mixer can be divided into vertical and horizontal shaft. There are almost these two forms of mixer in domestic. Zhengzhou Junhua Machinery is a professional manufacturer of construction machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include concrete mixer,concrete pump,If you are interested in our products, please contact us freely: junhua@junhuamachinery.com The vertical mixer can be traced back to the early twentieth century. The drum type concrete mixer driven by a steam engine has appeared in the beginning of the20 century. In the next fifty years, the double cone mixer of reversing the material type and pouring over discharging material type. In addition, the split drum mixer comes out in succession and gets development. T...

  When the mixing plant manufacturers quote on the concrete mixing plant , the general quotations don't include tax and freight. For the customer house construction companies, the tax rate is fixed, and it can be directly added to the line, while the freight is not easy to say. Many clients worry about the freight, so they often require the staff of the mixing plant manufacturers to also add the freight when they give a quotation. Is it really right? Today, Daswell machinery will talk about the transportation problem of concrete mixing plant. Zhengzhou Junhua Machinery is a professional manufacturer of construction machine for almost 20 years in China. We are dedicated to supplying our customers with best service and products, our major products include:Concrete Mixer with Pump,Flake Cement Silo,If you are interested in our products, please contact us freely: junhua@junhuamachinery.com Firstly, ask myself to answer the above mentioned requirements the freight problem of concrete mi...

  At present  portable concrete mixer , there are numerous  mini concrete mixer  production enterprises in our country, and the  mini concrete mixers  are serialized, while the technical level is uneven, only part of the mixers are close to the advanced level, some technologies of the mixers have already exceeded the level of the imported concrete mixer, and some of these mini concrete mixers have many characteristics, such as: high degree of automation, high production capacity, high weighing precision, less investment and good mixing quality, and they can also realize uninterruptedly continuous production. Nevertheless, there are still many disadvantages existing in the mini concrete mixer of our country, for example, the overall technical content is not high large  cement mixer for sale , the popularizing rate is not high, big regional differences  GCC ultrafine grinding mill , low intellectualized level and low environmental performance. Junhu...

Self loading concrete mixer is the combination of concrete mixer and transit mixer. It can automatically feed, weigh, mix and discharge concrete, which greatly improve the work efficiency, reduce production cost and time. Equipped with a powerful engine and 4 wheels steering, the self loading concrete mixer is just like a small truck and the operator can drive it to where it needs to go. It is very convenient for loading material, such as cement, aggregate, stone. All working from feeding material to discharging concrete can be done by one operator. Features: 1. Mobile, very convenient to move, especially in small project site. 2. Automatic loading and discharging, which will largely improve working efficiency. 3. Easy operation, high mixing quality and high working efficiency. 4. Easy maintenance, which will largely save labors for construction projects. 5. Independent water supply system ensures the high quality of concrete. 6. Short mixing time. It assures the high productivity. The...

 Normally we can use the below object to clean the hose completely. . Wash  the hopper and stick the  concrete pump cleaning  sponge ball in the reducer. Fill the hopper full of water  to  push the  cleaning  sponge down the system,  cleaning  all the  hoses . Make sure  to  use a sponge ball  one  size bigger than the  hose . For example use a 4″ ball for a 3″  hose .Please check the below photos

  You can obtain different specifications of concrete pumps from the best concrete pump suppliers. Normally, people look for 35M to 50M boom length, but some also buy concrete pumps with 63M boom length. Everything depends on the purpose of the project. The purpose of concrete flow brake is to control the flow of concrete from the boom to the destination. In most of the concrete pumps, hydraulic brakes are normally used to control the flow of concrete with a second’s accuracy.

  Features and Advantages of Aimix Concrete Pump Trailer for Sale 1.  Reliable performance . Our trailer pump for sale adopts double pump double circuit open hydraulic system, and the electric components are imported, and they ensure the reliable performance and safe operation. 2.  Unique design . It has the features of compact structure, small size and light weight, so it can reach the concrete sites easily. 3.  Wide usage . The power system can be electric or diesel. That’s to say, you can choose the  electric concrete pump or diesel trailer concrete pump . Both of them have high adaptability. In addition, we can make reasonable adjustments according to the special requirements. 4.  Long service life . The hopper of our concrete trailer pumps for sale ensures the machine to be hard-wearing, and the lubrication system leads to smooth operation. The special designs will prolong the working life. 5.  Environmental protection . Our trailer mounted concre...

  The high-efficiency twin-shaft concrete mixer has reasonable design, simple design, reasonable layout, strong and durable, compact machine, and reasonable installation of the blades on the two opposite mixing shafts in the mixing drum to make the material evenly distributed in the mixing drum. Stir. Double-shaft concrete mixer features: 1. The mixer monitoring system can monitor the working status of the gearbox, discharge pump and electric lubricating oil pump at any time; 2. The discharge door adopts the eccentric double seal design to prevent material jamming and material leakage, and the wear is small, and the sealing effect is efficient and durable. 3. The shaft end seal is equipped with a multi-layer labyrinth seal structure consisting of a floating oil seal and a special seal. The seal is reliable, the stability is strong, and the service life is long. 4. The diameter of the mixing drum is smaller half than that of the vertical shaft of the same capacity. The rotation spe...

  Daily   cement batching plant equipment maintenance 1. Check the concrete mixing plant parts. During the normal operation period of the mixing plant, before each start-up, check the fixation and connection of the parts, which must be reliable and the moving parts shall be sensitive and unimpeded. 2. Check the fuel quantity of concrete mixing plant. The fuel tank shall have enough storage, and sufficient fuel shall be added in case of shortage. 3. Check the oil way of the concrete mixing station. Open the oil valve on the pipeline, unscrew the vent screw of the fuel injection pump and the fire oil filter (manual pump oil can be used with the hand pump), hover the air out of the oil circuit, and check whether there is any oil leakage. 4. Check the cooling water. In case of water shortage, clean soft water shall be compensated and check whether there is water leakage. 5. Check the oil in the concrete mixing plant. Pull out the dipstick to check the oil storage. If the oil level...

  Concrete mixing plant is divided into four parts: gravel feed, powder (cement, fly ash, bulking agents, etc.) to feed, water and feed additives, transmission and storage stirred their workflow shown in Figure 1. , the mixer control system power, into the human – machine dialogue operation interface, system initialization process, including recipe number, grade concrete slump, producers, etc. according to the amount of weight carried on each silo, weighing hoppers. detection, output material or material empty full signal, prompting the operator to determine whether to activate the control program starts stirring sand, stone belt motor fed into the metering hopper; open fly ash, cement tank valve, start the electromechanical screw conveyor ash cement to the metering hopper; open water reservoir and control valves admixture pool water and additives into the metering hopper metered meet the set requirements doo door open metering, mixing the ingredients into the mixer within already...

  Ideally a batching plant should provide 2 things, accurate batching and homogeneous mix, in the shortest possible cycle time. Quantity of concrete: Choosing a batching plant is about understanding the amount of concrete requirement for the project and PEAK concrete requirement in a day. Space Availability : First thing in space availability is, is the space available at the construction site or will the batching plant be placed far from the placing area. This decides the transportation method. Next is how much of space is available? This decides what sort of batching plant can you host, either compact structure or bigger structure. Change in location : How frequently will the plant be shifted? If it is frequent shifting, say every 3 or 6 months, you have to factor in how many trucks are required to transport the plant and also factor in ease of shifting the plant. Concrete delivery : Depending on where the plant is placed and placing method (either transit mixer or concrete pum...

  C oncrete pump is a very common equipment on construction sites. It can pump concrete to high-rise buildings. Junhua provides customers with various types of concrete pumps, including concrete trailer pumps, concrete pump trucks, and concrete line pumps, concrete boom pumps, concrete mixer pumps, etc. Our concrete pumps are widely used for all types of large and medium-sized projects, which are durable and reliable with a low failure rate. Concrete Trailer Pump : It is the most common pump on the market, which is mounted on a small trailer. A separate truck will tow the fixed pump to the job site. Stationary pumps do not have a boom, so separate pipes or hoses must be used to transport concrete from the pump to where it is needed. A separate placement boom is also needed to accurately place the concrete. Capacity:  15 - 60m³/h * Power:  10kw - 60KW * Container Qty:  20GP*1 * Price:  1000 - 6000USD * concrete trailer pump is the most common concrete pump. It h...

  The high-efficiency twin-shaft concrete mixer has reasonable design, simple design, reasonable layout, strong and durable, compact machine, and reasonable installation of the blades on the two opposite mixing shafts in the mixing drum to make the material evenly distributed in the mixing drum. Stir. Double-shaft concrete mixer features: 1. The mixer monitoring system can monitor the working status of the gearbox, discharge pump and electric lubricating oil pump at any time; 2. The discharge door adopts the eccentric double seal design to prevent material jamming and material leakage, and the wear is small, and the sealing effect is efficient and durable. 3. The shaft end seal is equipped with a multi-layer labyrinth seal structure consisting of a floating oil seal and a special seal. The seal is reliable, the stability is strong, and the service life is long. 4. The diameter of the mixing drum is smaller half than that of the vertical shaft of the same capacity. The rotation spe...