Komatsu Bucket Teeth

Quick Details
Product Name: Komatsu Bucket Teeth
Place of Origin: Zhejiang, China
Brand Name: TIGER
Certification: ISO9001: 2008 ,ISO9001/SGS
Material: Carbon Steel
Processing Type: Casting or forging
Packing: Wooden Box or as Customer`S Request

Komatsu bucket teeth is one of our bucket teeth series, which is suitable for the bucket brand Komatsu. Our factory can offer two kinds of product process, the forging process and casting process. Forging bucket teeth processing can meet the requirement of highest productivity. With advanced machinery and technology, our forging bucket teeth is produced with advantages of good forging shape, dimensional stability, and the best comprehensive mechanical properties. As for casting process, we have a mature casting production line, which can ensure the precision and high quality of our casting bucket teeth, and our strict QC team will check any item before it being exported.

Tiger (China ) Engineering Machinery Co.,Ltd has rich experience of the bucket teeth production, and our products have won good feedback from our customers from many countries, such as USA, Germany, Japan, Italy, England, Canada etc. For further information, please email us to tig@tigmachinery.com .

Mini Excavator Bucket

Quick Details
Product Name: Mini Excavator Bucket
Place of Origin: Zhejiang, China
Brand Name: TIGER
Color: Orange,    yellow, etc
Mini order: 1pc
Size: standard size, or as per customers' request

A mini excavator, or compact excavator, is a tracked or wheeled vehicle which can operate weight from 0.7 to 8.5 tonnes. And generally, mini hydraulic excavators have three different assemblies, which includes house, undercarriage and workgroup. Mini excavator bucket belongs to the workgroup as a kind of attachment.

Tiger (China ) Engineering Machinery Co.,Ltd is a professional manufacturer of excavator bucket in China. And our mini excavator bucket can be suitable for many brands,such as caterpillar, Komatsu , Hitachi ,Hyundai , Daewoo, Doosan, JCB,Volvo ,kobelco etc. With good fame and quality our products have been mainly export to USA, Germany, Japan, Italy, England, Canada etc. and get excellent reputation. If you have any interest in our mini excavator bucket, please email us to tig@tigmachinery.com .

Motor Grader Cutting Edge

Basic Details
Product Name: Motor Grader Cutting Edge
Brand Name:Tiger
Model Number: 4J88
Condition: new
Color: Yellow, black
Type: cutting edge
Certification: ISO9001
Place of Origin: Ningbo, China (Mainland)

Our company can offer durable and outstanding motor grader cutting edge, which is suitable for various kind of motor grader. Besides, we have a complete range of blades, edges and end bits, shanks, teeth, router bits and plow bolts and nuts to suit virtually every machine. And as a mature manufacturer, we can produce cutting edges to suit your specialist requirement if you have special need of them. Each item will be check by our professional QC team, so as to ensure the quality of our products.

For more details, please email to tig@tigmachinery.com

Liugong Bucket Teeth

Basic Info:

Model NO.: EX100
Process: Casting
Material: Stainless Steel
Hardness: 48-52HRC 
Impact Value :> 15J  
Machining Tolerance: +/-0.15mm
Color: Yellow, or up to your choice 
Export Markets: Global


Advantages and Features:
 1. High quality with competitive price
 2. Durable for long lasting service time
 3. High work efficiency
 4. Small orders can be accepted


With the rich experience in casting, our products range including the field of Grounded Engaging tools such as bucket teeth, adapters, side cutters, ripper tooth, shanks, locks &pins, and other casting parts as industrial valves, stainless steel casting parts, auto parts, shipping fits, construction machineries parts, agriculture machineries parts, mining machineries parts etc. which are mainly export to USA, Germany, Japan, Italy, England, Canada etc. and get excellent reputation.

How To Reduce The Break Bucket Tooth

After a period of work, some excavator seems to frequently meet the occurrence of bucket tooth’s broken teeth phenomenon, which not only affects the production tasks, but also increase the cost of production. The main reasons causing the high rate of broken tooth are that the bucket teeth don't match, ore block is too large, or the operation guidance is not perfect.

Usually there are three kinds of excavator teeth type for the users to choose, standard bucket tooth, durable bucket tooth and self sharpening tooth bucket. Standard bucket tooth can be used in most cases. Durable bucket tooth doesn’t need to meet the requirement of insertion, but it should work with the stones after split. And self sharpening bucket tooth should insert into the soil, doing the work such as excavating or loading of sand or clay. In order to avoid the broken teeth phenomenon, first of all, we should be sure to use the supporting bucket tooth. At the same time we should pay attention to reduce the huge lump ore, in order to achieve the expected effect. And also do not forget to improve the operation instruction. It is better to make a new operating manual, according to the original operating manual coming with the excavator and the actual situation.

To Improve The Brand Effect Of Chinese Bucket Tooth

The development of hardware accessories industry makes the bucket teeth industry capacity growing, and it also has enhanced China's hardware industry, and laid the foundation for the overall level of hardware industry and the international market share. However, in the development process of China's bucket tooth products, ignoring the problem of the industrial structure, productivity and other aspects makes the industry into a stagnant dilemma.

The low-end bucket teeth can not support the future, and paying much attention to the design and technology innovation is an important way for the future industrial development. We should try our best to promote science and technology innovation construction of the products, build the transformation and upgrading of traditional industries and accelerate the training speed of the platform. At the same time, building the industry leading enterprises, and setting up the influential national brand are also very important for making China bucket tooth industry bigger and stronger.

Three Molding Processes Of Bucket Teeth

The present production of bucket teeth mainly uses three molding processes, sand mold casting, investment casting and squeeze casting.

Molding material for sand casting is cheap and easy to get, so this kind of molding process is very easy and cheap. Investment casting can produce castings with high size accuracy, low surface roughness, and small machining allowance, but it needs setting high riser for feeding, thereby the process yield will be reduced. Squeeze casting process is to apply constant pressure to the metal liquid in the forming process of, making the liquid metal rapidly solidified. It can produce castings with well grain refinement, and because of the solidification under pressure, the compactness of bucket teeth products is higher. And it does not need to set the great riser to feeding, which can avoid the generation of shrinkage defect. Products always have good quality, high process yield rate and high production efficiency. At the same time as a new material forming technology, extrusion casting also has advantages of simple process, high material utilization efficiency, small machining allowance, no waste emissions and so on.

Why There Are Heat Cracks On Tooth Casting

There appear irregular cracks on some tooth casting, which are called the heat cracks. Then how the heat cracks come about?

The heat cracks appear during the process of solidification, when the casting is in the plastic property and deformation state. The shape of these cracks is tortuous and irregular. And its formation is mainly caused by the uneven shrinkage of the forming components. In the filling process of the parts, the matters such as the uneven distribution of mold temperature field, a relatively low forming pressure, and ineffectively feeding, will cause the uneven shrinkage of the forming parts. In the casting process, the solidification time of different casting parts are not the same, due to which there will exists two tensile stress in the opposite direction during the core pulling. If the two tensile stresses is greater than the stress effect of material under high temperature, the bucket tooth workpiece will break in the weak point, and then the heat cracks come about.

Fixing Method For Bucket Tooth And Bucket Lip After Assembly

In the whole process of using an electric excavator, maintaining long-term careful examination and being diligent in repair can always keep the bucket tooth closely matched with the bucket lip, so as to help the electric excavator shovel works and operates safely and efficiently.

Firstly, at the time of the installation of new electric excavator, accurate mapping size of outer assembly binding geometry parts of the inside bucket teeth and the bucket lip, and make out templates. Then after repeated testing and physical modification, finally draw the pattern out.

In the working process, use the bucket tooth model to test if the bucket tooth new parts assembly parts is qualified, with bucket lip model in the late using process of bucket to test the wear volume of the bucket lip. If the bucket lip has any wear or tear, use the intermittent time of maintenance and repair or replacement of bucket tooth equipment to bead weld on the wear parts of the surfacing, and polished it anastomose to the model, and then install the new bucket tooth.

Why The Excavator Bucket Tooth Casting Has Stomata

The stomata in bucket teeth casting is formed in the process of squeeze casting. In the process of liquid metal filling, the gas which has not been discharged will be entrapped into the liquid metal, and subsequently float. The floating rate of the gas is mainly related to the liquid metal viscosity. With the decrease of temperature, the liquid metal viscosity increases. When the liquid metal viscosity increases to a certain extent, the bubble buoyancy velocity tends to zero, then the bubble stops floating up but stay in the liquid metal. Then the stomata are informed.

The main reason for this situation is the unsmooth exhaust of casting mold. Gas in the cavity can not be discharged smoothly. In the filling process, the gas will be stored between the mold cavity and the liquid metal. Since the liquid metal can not completely dissolve the gas, and the part of the metal liquid which firstly contacts air will form a thin solidification shell in advance, the gas is which has not been discharged will gather in a certain internal region and finally the stomata appear. At the same time, as the squeeze casting is under high pressure to do the filling and solidification of liquid metal, the gas above will be compressed rapidly, thus creating conditions for the formation of bucket tooth stomata.

Abrasion Of Bucket Tooth Influences Cutting Force

According to the degree of abrasion of bucket teeth, we divided the bucket tooth into 3 levels. Level zero wear, i.e. the new bucket tooth without abrasion; the intermediate, namely the bucket tooth whose radial abrasion length is 6mm or so and the average abrasion surface is about 22mm; the heavy wear, namely the bucket tooth whose radial abrasion is more than or equal to 15mm and the average length of the wear surface is more than or equal to about 30mm.

The experiment proved that abrasion has the following effects of cutting force of bucket tooth. First, the cutting force increased, especially heavy wear, line cutting force is 6 times larger than that before the wear. Second, the normal force increased with the bucket tooth becoming dull due to the abrasion. The normal force of the intermediate wear increases about 3 times, while that of the heavy wear increased 8 times. Third, from a macro perspective, in the cutting process, with the intermediate or heavy wear the vibration of the machine itself is bad, and the digging resistance increases significantly. Obviously, it is extremely unreasonable of excavator working in such bad condition, and this will cause damage to the transmission parts, make the equipment power greatly overload, shorten the machine service life, and also reduce production capacity.

Excavator Working Principle

Excavator is a kind of fixed assets with large economic investment. In order to improve the service life of it, every excavator should be equipped with one responsible person.


In the construction site, the driver should first observe the geology of working surface and the surrounding environment condition to see if there are obstacles, so as to avoid scratch or damage to the vehicle.


After launch, there should not be any person standing in the bucket, the shovel arm or the track, to ensure safety in production.


When excavator at work, there should not be any person stay or walk in the radius of gyration range or under the bucket. People without Operation certificate should be forbidden to enter the cap, so as to avoid damage to electrical equipment.


Before moving the excavator, the driver should observe surroundings and whistle, in order to avoid accidents. Ensure the location which the excavator will be moved to is without any obstacles in the rotation radius of the space.


After the end of the work, the excavator should be moved away from the low-lying or a geosynclines’ edge. Park it on the ground. Close and lock the doors and windows. The driver must do a good job of equipment routine maintenance, and if there are problems with the vehicle, the responsible person should report the problems and repair it timely.

Excavator Daily Maintenance

Daily inspection is to ensure that the hydraulic excavator is able to maintain the efficient operation of the important link in long term, especially for the self-employed. In addition, doing perfect daily inspection can reduce the maintenance costs.

First, turn two laps around the machine to check the appearance and mechanical chassis, and see whether there is oil outflow on slewing bearing. Then check the deceleration and braking device and bolt fastener of the track. Tighten the screw, and the change what need changing in time. If your excavator is wheel excavator, you need to check the wheel and pressure stability.

Check whether there is large wear of excavator bucket tooth. It is shown that the wear tooth will substantially increase the resistance of the construction process, seriously affect the work efficiency, and increase the wear degree of the equipment spare parts.

Check the bucket rod and cylinder to see if there is a crack or leakage. Check the battery electrolyte, avoiding it is at a low level line.

The air filter is to prevent a large number of dusts into the important parts of excavators, so it should be regularly checked and cleaned.

Often check the fuel, lubricating oil, hydraulic oil, coolant, and so on. Add the proper oil in accordance with the instructions, and keep it clean.
                                        

The Application of the Excavator

Excavator is one of the main construction machinery of earth and rock engineering. It is mainly composed of power plant, transmission, action, slewing mechanism, operating mechanism, electrical equipment, work device and so on. The working device can be according to the requirements of different variable for several types, so it is widely used in highway, railway, construction, mining, national defense, and other projects. According to statistics, more than 60%’s earth and rock engineering is completed by excavator. At present, backhoe excavator is mainly used in highway engineering. Backhoe excavator is mainly used for excavation conditions in the highway construction, and its basic practices have ditch excavation and excavation of the side ditch.

To sum up, the excavator is applied in excavating material which is higher or lower than the bearing machine and load into transport vehicles or discharge to the stocking yard earthmoving machines. Excavating material is mainly loose soil, coal, sediment, and the soil and rocks. From the point of the development of construction machinery in recent years, the development of the excavator is relatively quickly, and the excavator as one of the main engineering machinery model in engineering construction, its right selection is more important. At the same time, when meeting with the geological disasters such as typhoon, earthquake, and mud-rock flow, excavators have also played a decisive role, alleviate sufferings to the victims.