The tensile strength indicates the amount of mechanical stress required to break a particular component or material. The maximum tensile stress withstanded by the material refers to a constant mechanical stress. Under dynamic stress, a significantly lower load is required for fracture. The metric of tensile strength is usually inversely proportional with temperature.


Excavators are heavy equipment designed for carrying, moving and extracting bulk materials such as soil. We differentiate between continuous and batch haulage, depending on whether the excavated material is continuously transported and discharged during work or the work process must be stopped to discharge the material. Our company focuses equipment that belongs to the batch haulage family. In these machines, the operator sits in cab mounted to the chassis which rotates around the vertical axis. Excavators are used for digging of trenches, holes and foundations. Its bucket is narrower compared to that of loaders, but its penetration is much more powerful.


The term loader is mainly used to refer to front loaders that move bulk materials at ground level. Its bucket is particularly wide. Since they carry out work strictly on the front, they are called front loaders.


Excavator bucket is an attachment that can be used for medium to heavy dredging work. Normal, semi-reinforced and reinforced models allow you to adjust resistance to the load. The type of the bucket should always be chosen according to the type of soil. We manufacture a variety of bucket models because a different model is optimal for every type of soil. The teeth located on the front edge of the bucket facilitate penetration into the soil, while the cutting edge overcomes the resistance of the ground.


We protect the body and mantle of the spoon using wear strips that cope with much of the abrasion. Wear strips are crucial since the mantle is usually made of medium tensile steel, which has an optimal weight/ strength ratio, moreover it can be welded and bent perfectly. Wear strips increase the lifespan of buckets, as they can be replaced during refurbishment and they also reduce service demand significantly. Wear strips are mainly made of wear-resistant plates.


We call the back plate of the bucket mantle, which is a curved plate connecting the two sides. The side panels are attached to the mantle and together they form the body of the excavator.


HB is a unit of Brinell hardness. To test the hardness of the metal, a steel ball is pressed against it. The size of dent in the metal indicates how resistant the metal is. The higher the HB value, the more durable the metal is. In our industry, 400 HB steels have been used in recent decades. However, popularity of 450 HB steels is on the rise, and even that of 500 HB steels.


The cutting edge is exposed to the greatest impact on the spoon, as it’s first to penetrate into the soil. therefore, it needs to be extremely resistant. They are mainly made of wear resistant plates or steel that has gone through heat treatment and has a hardness of 500 HB. Cutting edges can be single or double edged.


Bucket teeth are one of the most important components of modern buckets as they facilitate the digging process. Blunt teeth can increase fuel consumption by up to 10%, therefore, it is a good idea to replace them early. One of the greatest benefits of self-sharpening bucket teeth is that they stay sharp during use and wear. Teeth can be made by casting or forging.


The most simple and cheapest fasteners of heavy machinery are bolts. The bolts usually provide a loose joint, preventing lateral displacement. To avoid slipping, they can be equipped with a cotter, quard-ring or a transverse nail. Bolts are most commonly used for swivel joints, with one element moving and the other rigidly attached to the bolt.


In the context of excavators and heavy equipment, self-sharpening shape is mainly associated with bucket teeth. Self-sharpening bucket teeth wear out without losing their sharpness, thus providing a steady level of efficiency throughout their lifespan.


Wear plates are made of hardened, tempered, fine-grained, martensitic steel, which have a greater carrying capacity due to their increased strength. Generally, heavy-duty machine parts are made of wear plates.


During plasma cutting (as opposed to flame cutting) no chemical reaction occurs. The material melts (at about 20 000°C), partly evaporates and partly the kinetic energy of the plasma sweeps it away from the gap. Plasma can be used for precise cutting, even with a 3D head, but only on materials with a thickness of 0.5-150 mm.


Flame cutting is actually burning the material where you want to create a cut. The combustion product is blown out by a high-velocity jet of oxygen. Flame cutting can be used to cut pieces of any shape from soft iron and carbon steels. Its main advantage is low cost. It can be carried out without electricity on materials in varying thickness.


Plate bending is a key step in the process of shaping wear plates. It includes creating dents for fixings, bending and radius bending with CNC-controlled bending machines.


Buckets are exposed to high mechanical stress and extreme wear; therefore, their wearable compartments need refurbishment from time to time. The extent of refurbishment may vary. Only the cutting edge or even the body may have to be replaced. Due to a reduction in material thickness, the structural strength of the bucket may also decline, making the bucket easy to deform or break.


Ditch cleaning buckets are designed for creating drainage trenches and ditches. They are available in fix and tiltable versions. The latter allows precise positioning independently from the machine. The positioning can be done with a hydraulic cylinder or rotator. A great advantage of the rotator is the fully closed system which is completely maintenance free.


Attachment for loading bulk materials with a density of up to 800 kg / m3. It’s available in standard version and with a sliding bolt. The latter is ideal for grain or seeds.


The quick coupler is a device attached to the loader or excavator boom to which a bucket, fork and hammer can be attached. The main benefit of using a quick coupler is that it significantly reduces the time it takes to change the attachment, thus saving productive time. In addition, the risk of accidents is reduced, because the operator does not have to use a hammer to perform the change or stand close to the moving boom.


Universal buckets are designed to perform a variety of tasks from digging through loading to smoothening. Versatile usability is achieved by combining the benefits of excavator and ditch cleaning buckets. This way the bucket for excavators between 14 and 20 tons is particularly suitable for heavy-duty earthworks.


Structural steel is the collective name of steels containing less than 0.6% carbon. Its properties can be adjusted by adding other alloying elements. Most industrial equipment and components are made from structural steel.


Ripper teeth are used for ripping up or loosening up frozen and rocky soils. This way the loose soil will be significantly easier to handle. This attachment is as important for smaller machines as it is for crawler excavators.


The trapezoidal bucket is perfect for creating ditches without the need for further refinement. The most common angles are 45°, 27°, 34°, 60° and 30°.


Excavator buckets are basic attachments of mining and earthmoving equipment, located at the very end of the arm. The size of the bucket should always be selected based on the weight of the machine. There are two types of buckets: clamshell buckets that can grab material by opening and closing and standard buckets primarily used for digging. There are several models of buckets available, hence we advise choosing the bucket according to the specific use case. In general, the sides of the bucket are equipped with a cutting edge and the front has teeth which facilitate digging.


Hardened, refined, fine-grained and martensitic steels are called wear-resistant steels. These steels are more robust than others, therefore, a smaller piece is enough to handle the same load, thus reducing the weight of the equipment. Moreover, wear resistance increases the lifespan of the component. Wear-resistant parts are mainly used for parts of the heavy machine that are exposed to heavy usage.


Yield point and tensile strength are usually measured at the same time. It refers to the maximal level of mechanical stress, at which the material undergoes a permanent deformation from pulling.


Usually expressed in liters or cubic meters, capacity refers to the maximum volume of material that can be carried by the bucket. According to the standard, the value of capacity indicates a rounded bucket of material.


The hardness of steel can be increased by heating at high temperatures, called hardening. Heating is followed by rapid cooling, resulting in a more flexible and equally hard steel. This process can be followed by annealing, which means keeping at a specific high temperature to reduce the brittleness of the steel. The combined process of hardening and tempering is called quenching.


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