Explanation of Excavator Parts: Types, Materials, Uses and Replacement Guide

June 13, 2025

the excavator parts type overview

Excavator parts can be divided into five categories according to their functions: work unit parts, power system parts, hydraulic system parts, traveling system parts and electrical system parts. Work device parts include bucket, bucket teeth, bucket rods, rocker arm and other parts directly involved in excavation operations; power system parts cover the engine and its related components such as filters, turbochargers, etc.; hydraulic system parts are mainly hydraulic pumps, hydraulic cylinders, control valves, etc.; walking system parts include tracks, supporting wheels, drive wheels, etc.; electrical system parts involve various types of sensors, controllers and wiring harnesses and other electronic components.

the shape and weight characteristics of excavator parts

The shape of excavator parts is closely related to its function. Bucket is curved design to facilitate the loading of materials, the weight of dozens of kilograms to several tons; bucket teeth for the sharp conical or angular, a single weight is usually between 5-15 kg; hydraulic cylinders are long cylindrical, the length of up to several meters, the weight of dozens of kilograms to hundreds of kilograms; track plate for the flat plate link structure, a single piece of weight of about 15-30 kilograms. Different models of excavator accessories size and weight differences are significant, small excavator bucket may only weigh 100 kg, while large mining excavator bucket can weigh more than 10 tons.

the material analysis of excavator parts

Excavator parts material selection based on its working environment and force situation. Bucket teeth and bucket edges are mostly made of high manganese steel (ZGMn13) or alloy steel, which is heat-treated to obtain high abrasion resistance; hydraulic cylinder cylinders are often made of No. 45 steel or alloy structural steel, which is tempered to ensure the strength and abrasion resistance; piston rods are mostly made of nitriding steel, such as 38CrMoAl, with the surface plated with hard chrome to improve the corrosion resistance; and the crawler plates are usually made of medium-carbon alloy steel, such as 40Mn2, which is both strong and ductile; The seals are made of elastic materials such as nitrile rubber and polyurethane. Under special working conditions, such as mining operations, the key parts will use a higher level of wear-resistant materials such as Hardox steel plate.

the main use of excavator parts

Various types of accessories play an irreplaceable role in the excavator. Bucket and bucket teeth directly complete the earth excavation and loading operations, the state of which directly affects the efficiency; hydraulic pumps and hydraulic cylinders will be converted from the engine's mechanical energy to hydraulic energy and drive the action of the working devices; tracks and supporting wheels to support the weight of the whole machine and to provide walking function; electrical control system is responsible for the transmission of the machine's operating commands and status monitoring. High-quality parts can significantly improve the operating efficiency of the excavator, such as wear-resistant bucket teeth can reduce the frequency of replacement, high-performance hydraulic components can enhance the speed and power of action, durable tracks can reduce downtime.

the replacement of excavator parts

Replacement of excavator parts need to follow the standardized process and pay attention to safety matters. Bucket teeth replacement needs to be cleaned up first, using special tools or sledgehammer to knock out the pin, after installing the new bucket teeth to ensure that the pin is locked firmly; hydraulic pump replacement needs to release the system pressure, marking the location of the pipeline connection, the new pump needs to be installed after the exhaust and test run; track plate replacement needs to be parked on a flat surface, the use of jacks to lift the machine, and the disassembly and installation of the connecting pins may need to be heated. Key considerations include using the correct tools, following the manufacturer's specified torque values, cleaning the contact surfaces when replacing seals, and using thread locker on important bolts.

Conclusion

The selection and maintenance of excavator fittings is crucial as a guarantee of normal equipment operation. This paper systematically introduces the characteristics of various types of accessories and replacement methods, but the actual application also needs to be combined with specific working conditions and equipment models to make judgments. It is recommended to establish a regular inspection system, use the original or equivalent quality of the replacement parts, and make a good replacement record. Correct parts management and maintenance can not only extend the service life of excavators, but also significantly improve construction efficiency and economic benefits. In the future, with the development of material science and manufacturing technology, excavator accessories will evolve in the direction of more durable and smarter.

ACE ASOK Machinery is produced adopting new environmentally-friendly materials.

FAQ

1.What is the product warranty?

We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone’s satisfaction

2.What kinds of payment methods do you accept?

You can make the payment to our bank account, Western Union or PayPal:30% deposit in advance, 70% balance against the copy of B/L.

3.Can you supply the relevant documentation?

Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.

Advantages

1.We have a registered capital of 1.3 million RMB and more than 120 employees including 3 product engineers, 3 production supervisors, 4 warehouse managers, 5 QA consultants, 8 operational personnel, and 95 skilled laborers.

2.Since our oversea distribution network was established in 2005, we have secured export destinations in regions including the Americas, Africa, Eastern Europe, Southeast Asia, the Middle-East, etc.

3.ACE tools are approved by industry standards such as CE and CCC. Starting in 2009, our production facilities have been audited on a yearly basis by professionals from the TÜV SÜD Group.

4.Company was founded in 1995 which have 29 years’ experience in the road construction machinery.

About ACE ASOK Machinery

Company was founded in 1995 which have 29 years’ experience in the road construction machinery. During this period, we build up the producing department with 5 workshop for different craft including: Cutting, Wielding, Assembly, Painting and Quality Assurance(QC). In the same time the employees is raising from 35 to 133. In addition to the producing, the other part also building like the sales department, after-sale service department, raw material purchasing department. Now we have the products almost including all kinds of small road construction machines like the concrete mixer, concrete vibrator, plate compactor, tamping rammer and power trowel. Besides we also research and develop the new machines like mini excavator, road roller, trailers for small machines. In 2020 we made the latest products—the remote control power trowel. During that progress, we have build good relationship with various supplier, not only in the raw material but also the spare parts and products guarantee company. With the idea of “Providing the innovative construction equipment that make your work life easier.” The factory already get twice expanding. in 1997, 3 engineers establish the research department. In 2017 we separate the factory into 2 parts for road construction machine and mini excavator. In the long time of progressing, Customers and partner offered a lot to help us growing together. First of all we just doing the business in China and then we have the first Germany visitor with one small order, with their support, at the time of 2016 we already sell our products to over 49 countries. That is also meaning, rich experience for different country imported and export rules. All our products have the certification which need in all over the world, we can offer the CE certification as the basic and also the other which asking from you. Our work was repaid with the fierce trust. Now the ACE Brand could be found in website as the golden supplier, and one of the most popular supplier in Alibaba. MIC (made in China) platform make us to be the top 100 construction machinery manufacturer in 2016. For the next plan, we will start the schedule to expand our market overseas, to producing the machine with good quality and cheap price. To make the construction building easier and better. With the time goes by, here is the 30th years of our company. We still remember our mission & ambition: To be the excellent global provider of construction equipment for professional contractors. To be a company that customer focused, always in innovation, grateful and keep on win-win model all times.

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Explanation of Excavator Parts: Types, Materials, Uses and Replacement Guide

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