Excavator Operating Techniques

When operating excavator, we should pay attentions to the around environment like the barriers and terrains. Pay attentions to the crawler belt to avoid collision or tipping over. Make both of the crawler belts completely touch with the ground to improve stability. The digging power is the maximum when the angle between the bucket cylinder and the rod is 90°. The cutting power is the best when the angle between the bucket teeth and the ground is 30°. The bucket rod working angle should be kept between 45°in the front and 30°in the back. And it can improve the digging efficiency when use the arm and the bucket at the same time. excavator for sale.

The large and hard rocks will damage the bucket, so some techniques should be mastered when digging in the complicated terrains. The machine body should be positioned towards the cracks of the rocks and make sure that the bucket teeth can easily insert the cracks. Only when the rocks are crashed can the excavator starts to dig. When leveling the slope, the excavators should be positioned stable and balanced. And the arm movement should be accordance with the rod movement, which is very important for the slope leveling.

When it refers to loading and unloading, good cooperation between the truck and the digger is very important, which means that the two machines should make consistent action. Both of the machines should be kept stable, otherwise, it will be hard to control the rotation and extend the working time. The hydraulic excavator should keep proper distance with the truck to avoid any collisions during the working process. Generally, the truck should be positioned lower than the digger, which can shorten the arm lifting time and provide a good vision for the operator. According to the loading experience, the sand and rubbles should be loaded before loading the big rocks, which can effectively reduce the collision to the carriage.

Excavator Examination before Working

Chinese Spring Festival comes to an end, people starts to return to work. Some people may have a body examination before working in order to keep a good physical and mental condition to make an excellent performance in a new year. That is the same rule for the excavator, which needs to be carefully checked after being idle for a long time in order to create the maximum productivity. Generally, there are three steps to go for a careful examination.

First, examination should be made before starting the machine. Check the fuel oil level and discharge the waste and water from the fuel tank. Check the engine oil level and quality. Check the hydraulic oil level and quality. Check the reduction gears and coolant to avoid any cracks and leakage. Check the lubrication conditions of the joint parts, add the lubricant if necessary. Keep the crawler belt and bolts in joint parts tight. Ensure the meters show accurate data. Second, examination during operation, preheat the hydraulic excavator with the temperature below 3℃ for several minutes. Set the machine in idle running for 5 to 10 minutes with no load to make the hydraulic oil temperature reach 40℃. In the cold days, rotate the upper body of the machine to 90°, then hold up the crawler belt to make it rotate for several circles to cast off the dirt.

Finally, check the ambient. Safety signs should be set in the entrance and surrounding of the machine parking place to avoid any dangers. The parking ground should be hard, flat and spacious enough for evacuation under emergency circumstance. The comprehensive examination can inject power to the excavator to make it create the maximum productivity and reduce the construction risk to the minimum at the same time.

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Small Excavator Development and Maintenance Guidelines in Winter

Small excavator plays an important role in city construction and traffic infrastructure, it develops fast in the small-sized engineer construction and makes great contribution for saving labor and resources. Being compact and flexible, the small digger can be used in narrow space to make the maximum productivity, thus becoming the representative construction machinery in city construction. The small digger’s development depends on the city development, which puts forward higher requirements to the small digger including higher efficiency, higher safety, low pollution and ease of operation.

From 1970s, the hydraulic excavator had been accounted for 83% of the total excavators and now is approximately 100%. Regular maintenance should be made to keep the hydraulic devices in a good condition, especially in the winter, during which the freezing temperature will cause damages to the hydraulic parts. Before starting working, the small excavator should be set in idle running with low speed for several minutes, then speed up the engine to the maximum and make the bucket and rod running for 5 minutes. Pay attentions to the ambient to avoid injuring people or other objects around when preheating.

If the small excavator is on the shelf in winter, special care should be taken to the machine to make it ready for immediate use. Clean the surface of the machine and check the parts to avoid loose bolts. Keep the fuel oil and antifreeze in good quality and normal work. If the machine needs to be stopped for a long time, the engine coolant should be discharged completely and the accumulator should be stored in warm place.

Related article: Digging Trench with Mini Excavator

Sany Excavator Sales Ranks Industry-Leading

It is reported that the overall sales of China excavator industry in November, 2016 is 6664 units, increasing 72.6% than last year. From January to November, the overall sale is 63.4 thousand units, increasing 21% than last year. It predicted that the excavator sales of 2016 will reach 70 thousand units, which increases 20% than last year. Sany Group stands out of the industry, the excavator sales in November is 1416 units, increasing 107.02% than last year, the overall sales from January to November is more than 12000 units, ranking NO.1 in the industry, there is no doubt that the sales champion of 2016 will belong to Sany Group, whose hydraulic excavator market share in China has been NO.1 for consecutive 6 years.

The real sate development and earth foundation expansion have brought huge demand for excavator, which makes the excavator sales in November increase rapidly and continue to increase. The increasing demand also promotes development of other construction equipment, it is reported that the construction equipment sales in October is 44.79 units, increasing 6.45% than last year and 2.01% than September. The sales of loader and forklift keep increasing neck and neck, following the excavator increasing trend.

The situation of construction machinery industry turns better and better, which will make great contribution to the social and economic development of the whole country. If you want to create your own career, Sany excavator is your best choice.

Related Article: Small Excavator, the Best Choice in Farmland Improvement

Hydraulic Excavator for Construction Applications

The hydraulic excavators are designed for various operation uses, such as excavating, leveling, digging, loading and demolishing. Commonly used in construction, road building, mining, and civil engineering projects, the hydraulic excavators are applicable for various operations. Backhoe operation of hydraulic excavators is suitable for digging an area which is lower than the excavator. When the hydraulic excavator’s boom cylinder is at 90-degree angle while the arm cylinder stays vertically, maximum digging force can be obtained through the thrusting force of each hydraulic cylinder. Make use of this angle effectively to help you achieve the maximum working efficiency of the excavator. The digging range of the hydraulic excavator’s arm is from 30 to 45°. The angle may vary according to digging depth, but it is better to keep it within the above range if possible. Do not operate the hydraulic cylinders to their full.

You can use the hydraulic excavator to dig a trench efficiently by installing a bucket suitable for this job and adjust your excavator tracks to parallel the to-be-dug trench line. When digging a wider trench, excavate first both sides of the trench and then remove the middle part. In excavating operation, the excavator track should be adjusted vertical to road shoulder or cliff, with sprockets behind the excavator cab, so that the hydraulic excavator can retreat easily in case of an emergency. For excavator loading operation in a place where the swinging angle is small, working efficiency can be improved by parking the dump truck at where the excavator operator could see easily. It is more convenient for the compact excavator to load more material if the dump truck is loaded from rear rather than from its sides.

Excavator operator need know dangerous conditions in jobsites

Excavator operators usually work out in the field or construction sites; therefore, cautious investigation on the worksites is crucial to the safety of the excavator operator and to the safe operation. First of all, the operator should check the terrain and ground condition and use the safest operating method, try to avoid traveling or operating the excavator in areas with risk of landslide or falling stones, near cliffs, road shoulders or trenches, because the soft and loosen ground in these areas may not bear the excavator’s weight and vibration, as a result, the machine might sink or tumble down. The ground may become softer after heavy rain, explosion or earthquake. If the excavator has to work on a dam or near a ditch, vibration and machine weight may trigger a landslide, thus protective measures have to be taken prior to operation in order to prevent the excavator from tumbling down or falling over. For instance, to solidify the ground, keep a safe distance away from the ditch and assign a signal man when necessary.

If there are underground water mains, gas lines, cables or high voltage electric wires on the worksite, the large excavator operator must inform and ask related utilities providers to mark the area, and be careful not to cut any lines while digging the ground. When necessary, in order to prevent any unauthorized personnel from entering the construction site, it’s necessary to assign a signal man for the excavator operator and build a fence when operating on a highway. In addition, the operator must be extremely alert when operating on frozen ground as the excavator operation will cause the ambient temperature increase, which may result in soft and slippery ground. When traveling or operating the excavator in shallow water or soft ground, the operator has to check the type and condition of rock bed as well as the depth and water flow in advance.

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Sany Excavator Works in Qatar

Eleven units of Sany’s machines have participated in the project of impounding reservoir construction, including nine units of excavators, two units of graders and two units of trailer pumps. In such an extremely dry country, this project is a national strategy of Qatar for water reservation.

Sany’s excavators win favor from all operators from different countries, since they not only look elegant but also perform well. These excavators on the working site have different responsibilities, such as excavating, loading or smashing. The operators speak highly of Sany’s excavators, since they are powerful, efficient and durable. Even though the local temperature of Qatar is always around 30-50 degree centigrade, these excavators resist the high temperature and perform steadily. Besides the excavator itself, the meticulous after-sales personnel also add the attraction of the excavators.

One Indian operator is excited about the excavator equipped with quartering hammer. He says Sany’s products are common in India, but the hydraulic excavator equipped with quartering hammer is fancy for him. Adopting the hydraulic pressure with nitrogen, the quartering hammer’s strength is quite strong. Even if the working condition in Qatar is stony, hot and dry, the quartering hammer is all-conquering. Unlike other quartering hammers which are easily broken, the life span of Sany’s machine is quite long. The high quality material, precise processing technique and thermal treatment for the surface of cylinder and piston not only lengthen the life span of the quartering hammer, but also the life span of the whole excavator.

Medium Excavator SY335C

Sany excavators deliver maximum performance and ease of operation. The advanced safety and technology ensure your increased productivity without a compromise on safety and efficiency.

Sany medium excavator SY335C is mainly used in earthwork, stone exploitation, water conservancy, mining, road, and bridge and tunnel construction. With a dual-pump, dual-circuit constant power control system, the engine outputs a continuously strong operating force. The engine is designed to work in four modes -- heavy-duty, standard, light-duty, and break--according to different working conditions. The heavy-duty mode is designed for soil and rock excavation, the engine power is maximal enough for highest operating efficiency. The standard mode is for soil excavation, 90% of rated power reduces fuel consumption and noise. The light-duty mode is for soft soil excavation, 80% of rated power with low fuel consumption. The break mode adjusts flow according to different crusher models for crushing operations. And the dynamic optimization matching system (DOMCS) intelligently matches the engine system and hydraulic drive system, improving working efficiency by 6% and reducing fuel consumption by 10%. 

In the Tullow Infrastructure Project in Uganda, Sany SY335C did an excellent job in digging the waste oil in the barrel reserve, through which the Uganda government has continued to expand its oil development capability. Sany SY335C was used on the hard ground and perfectly completed the task, winning high recognition of customers.

Otherwise. Sany small excavator is also for sale. Waiting for your response. Have a nice time.

Sany Excavator Ranks No.1 in the Excavator Brand Attention List

In July 7th, 2016, China Road Machinery Website and Construction Machinery Online issued the “Construction Machinery Brand Attention Ranking List in the first half of 2016”, which is based on the browsing volume and online enquiries from massive customers in the first half of 2016. This ranking list accurately reflects customers’ preference to the construction machinery brand and reveals the influence and coverage of the enterprise and product among the users. Sany excavator ranks No.1 in the list, which shows that Sany band and Sany excavators have a good reputation among the users.

 

Sany excavator’s extensive customer base is inseparable from Sany mission and vision. Sany is strict with quality and service all the time and believes that quality changes the world. Holding the belief that all for customers, Sany strictly control every step from designing, purchasing, manufacturing, marketing to testing, installing, examining and maintenance. Sany has branch companies and offices all around the world, the after-sales teams are always at your service. What is more, the newly established O2O department has formed a service net around the world. Therefore, no matter what kind of problems you have for your excavator, Sany will offer you the best and immediate solutions.

Sany quality service has led a transformation in the construction machinery market. Customers’ needs are always the driving force for Sany to improve product quality and service, which is also the best way to repay its faithful customers. Sany excavator deserves the reputation to be No.1 for its excellent performance in every aspect.

SY245H-high quality of mine hydraulic excavator

SY245H is a new kind of mine hydraulic excavator product. Sany has designed it for small and medium mining heavy working conditions, and aims to improve customer investment. Compared with other brands, it has many features such as extended endurance, superior performance, low maintenance costs, easy access to management, and high adaptability.

Through 15 years of accumulation, relying on Sany's large excavator design experimental system, the service life of SY245H in mine working condition exceeds 15000h, 20% higher than ordinary excavators.

With structural optimization design, stress test, weld and plate research and some other advanced methods, Sany improves the service life of the key structure and reduces the rate of failure to 5%.

SY245H’s core components consist of a main pump, a main valve, an oil cylinder, and a reducer. Depending on the core components durability test system and cooperating with famous international research institutions, Sany devotes himself to research on core components and improves core components service life. The Oil cylinder, reducer and other hydraulic components must reach the industry standard before being used. This can ensure components service life 30% higher than the ordinary brands.

SY245H ‘s main valve is KMX15RB / b45217a-v valve, it is designed on the basis of the original KMX15RB upgrade optimization, it has high reliability, small pressure loss and high flow distribution efficiency, and smooth action compound and other advantages to help customers easily solve heavy work.

SY245H’s engine is D06FRC engine, in line with the three emissions standards. The emissions torque is 20% larger than foreign brands in general. It is powerful to be suitable for mining high torque operations.

Website: www.sanyglobal.com