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Track Roller
Undercarriage Part Excavator Track Roller E320 Ex200-1 Ex300-5 Ex400 Ex200-2

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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Factory Direct Undercarriage Part Excavator Track Roller DH220 DH270

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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HD1250 Excavator Undercarriage Parts Track Roller

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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SH300-3 Factory Direct Undercarriage Part Track Roller

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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PC100 Komatsu Factory Direct Undercarriage Parts High Quality Track Roller

With our track roller, you can bid farewell to excessive maintenance and frequent replacements. Its superior quality and impeccable performance eliminate unnecessary downtime, enabling you to focus on what truly matters – achieving excellence in your operations.

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DH55 Factory Direct Undercarriage Part Track Roller

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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EC140 Excavator Undercarriage Bottom Roller

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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Excavator Undercarriage Bottom Roller

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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Excavator Undercarriage Parts Track Roller

This Heavy Duty Track Roller Parts is a high-quality undercarriage part, designed for durability and compatibility with various excavator models. With a robust structure and reliable performance, it's ideal for demanding construction environments.

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Hyundai 200 Factory Direct Undercarriage Parts High Quality Track Roller

With our track roller, you can bid farewell to excessive maintenance and frequent replacements. Its superior quality and impeccable performance eliminate unnecessary downtime, enabling you to focus on what truly matters – achieving excellence in your operations.

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Carrier Roller
Manufacturer Sales Directly SK450 Carrier Roller P/N:24100N8640F1

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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Factory Komatsu PC60-5 Top Roller Komatsu Excavator Undercarriage Parts

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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PC300-7 Top Roller Carrier Roller Komatsu Excavator Undercarriage Parts

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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SK140 Top Roller Carrier Roller Kobelco Excavator Undercarriage Parts

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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PC100 OEM Top Roller Carrier Roller Komatsu Excavator Undercarriage Parts

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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Professional Factory PC200-5 OEM Top Roller Carrier Roller Komatsu Excavator Undercarriage Parts

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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Professional Factory Longgong60 OEM Top Roller Carrier Roller Excavator Undercarriage Parts

Introducing the epitome of durability and efficiency in the construction equipment industry - the extraordinary "Excavator Carrier Roller"! Get ready to delve into a world of unmatched performance and superior quality that will revolutionize your construction projects.

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Mining Machinery Manufacturer Sales Directly SK200 Carrier Roller P/N:24100N8640F1

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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Mining Machinery Manufacturer Sales Directly Carrier Roller

Top rollers carry the chain and the track shoes We forge high-quality steel using a special method. Heat treatments make the excavator rollers or dozer rollers extra tough and thus wear-resistant. This guarantees a long service life, even with intensive use.

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Swing Pump
Undercarriage Part Excavator Swing Pump Motor Drive

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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SK130-8 Undercarriage Part Excavator Swing Pump Motor Drive

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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EC300 Undercarriage Part Excavator Swing Pump Motor Drive For Sale

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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E336D Undercarriage Part Excavator Swing Pump Motor Drive Factory

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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PC120-6 Undercarriage Part Excavator Swing Pump Motor Drive Factory

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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SY305 Undercarriage Part Excavator Swing Pump Motor Drive For Sale

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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PC120-6 Undercarriage Part Excavator Swing Pump Motor Drive

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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E307E Undercarriage Part Excavator Swing Pump Motor Drive

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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Undercarriage Part Excavator TM40 Swing Pump Motor Drive For Sale

Excavator rotary pump mainly refers to the hydraulic pump that controls the upper structure of the excavator (including the cab, boom, bucket rod, etc.) relative to the lower chassis for rotary action.

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Idier
SH200 Excavator Front Idler Wheel 1080-00980- 14533156

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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YC85 Excavator Front Idler Wheel

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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EC460 Excavator Front Idler Wheel

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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E345 Excavator Front Idler Wheel

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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EX300 Excavator Front Idler Wheel

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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EC360 Excavator Front Idler Wheel

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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DH300 Excavator Front Idler Wheel 1080-00980- 14533156

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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DX250 Excavator Front Idler Wheel 1080-00980- 14533156

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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R375 Excavator Front Idler Wheel 1080-00980- 14533156

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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DX140 Excavator Front Idler Wheel 1080-00980- 14533156

The excavator's front idler is engineered with high-quality steel, designed to harden well and provide toughness. It undergoes a specialized molding process to prevent gas formation and receives a specific heat treatment on the surface for enhanced depth hardening, ensuring a longer life.

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Sprocket
Excavator Sprocket PC300-6 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket SY215 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket 8E980S Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket EC360 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket ZAX330 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket SK350 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket EX200-3 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket SK460 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket DX300 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Excavator Sprocket SK60 Drive wheel Undercarriage Parts Segmen

The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time.

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Track Link
Komatsu PC200 track link bulldozer undercarriage parts

Bulldozer track chain is one part of undercarriage parts 

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About Us

Welcom To Kaiyusi

Quanzhou Kaiyusi Machinery Co., Ltd.
quanzhou kaiyusi machinery manufacture Co.,ltd, is professional manufacturer of undercarriage parts, which used for excavator and bulldozer ,loader .Our main product are track roller ,from idler ,sprocket ,carrier roller ,bucket bush , tooth pin ,link bushing ,track bolt ,and swearing bearing ,track adjuster.these parts are used for brands like komatsu ,caterpillar ,hitachi, kato, sumitomo,kobelco, daewoo, hyundai,volvo,yanmar yuchai ,SWE etc,The heat treatment of our products adopts the latest German machine to strictly control and confirm the quality of the products after processing, so that every customer can rest assuredPurchase advanced producing and inspect machines ,produce strictly according to the standards of national and industry ,we make our effort to execute the management model of modern enterprise.we have passed the SGS:ISO9001:2008 certificate,We export to all over the world, the Middle East, Europe, America, Japan, Korea, Russia and other Central Asian countries .we have won the great reputation in market under the high grad service and productions , sales network has spread all over the domestic and oversea markets.
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Have a Help? Call Us : +86-15805989981

Corporate Style

  • 0 years+

    20 Years of Manufacturing Experience

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    1,135 professional and technical employees

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    The products are exported to more than 50 countries and regions.

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    Our factory covers an area of more than 1000 square meters

News

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quanzhou kaiyusi machinery manufacture Co.,ltd, is professional manufacturer of undercarriage parts, which used for excavator and bulldozer ,loader .

How to maintain the excavator chain
23Dec
How to maintain the excavator chain

Under normal circumstances, the chain elongation of 1/50 is normal when working, if excessive elongation will reduce the number of teeth of the sprocket, resulting in noise and damage to the chain. The elongation of the chain can be reflected by the sag value L of the loose edge. The L value is generally 2 to 4% of the center distance between the two sprockets, and when the sag is excessive, the sprocket cover should be removed and adjusted with a tensioning device. Sleeve roller chain will stretch at work, which is due to the wear between the sleeve and the roller caused by the gap, so to use the thinner lubricating oil into the chain plate gap, the oil should be on the loose side of the chain, so that the oil into the chain plate gap, and then use cotton yarn to wipe off the excess oil, do not use butter or high-viscosity oil on the chain lubrication. That would damage the chain and sprocket by sticking to the dust. Excavator training believes that if the chain is seriously contaminated, it should be removed and cleaned with gasoline, placed in the lubricating oil for half an hour, and then fished out to wipe off the excess oil and continue to load the car. The drive chain is also the final transmission component of the road roller, and its transmission load is very large, and it is affected by the impact of driving and braking, and needs to be carefully maintained。

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Bauma China 2024
18Oct
Bauma China 2024

Since the opening of the bauma CHINA 2024 pre-registration channel, the enthusiasm of domestic and foreign buyers has continued to rise. So far, more than 160 countries and regions have made reservations to visit, far more than the previous period.   In response to the strong request of exhibitors and professional buyers, the free visit registration channel of bauma CHINA 2024 will be extended until November 21 (23:59 PM). Please 

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Transformation and upgrading of China's construction machinery industry
18Oct
Transformation and upgrading of China's construction machinery industry

Excavator is a multi-functional self-propelled mechanical equipment, according to different work needs and terrain characteristics, can be tracked, wheeled or walking and other types. The main structure consists of a superstructure with a 360° rotating working device for digging and handling materials, loading them into transport vehicles or unloading them to the storage yard.   Excavators can be divided into several categories according to tonnage and use scenarios:   Large excavator: suitable for large-scale mining and large-scale earthwork.   Large excavators: mainly used in large infrastructure construction and mining operations.   Medium excavator: Used in medium engineering projects and construction sites.   Small excavator: suitable for small construction sites and urban construction projects.   Mini excavators: Used for work in small Spaces, such as municipal maintenance and landscape engineering.Affected by the epidemic and geopolitical factors, the global economic slowdown has led to the impact of China's infrastructure construction and engineering construction industries, and the demand for the excavator industry has been greatly reduced. According to 2023 data, China's excavator sales reached 195,000 units, down 25.4% year-on-year, continuing the downward trend in 2022. However, due to the promotion of a series of foreign development policies in China, the amount of foreign projects contracted in China has increased year by year, which has prompted the export volume of excavators to also increase rapidly, partly alleviating the pressure of insufficient demand in the domestic market.   The position of Chinese excavator enterprises in the global market is gradually improving, especially in Asia, Africa and South America, and the demand is increasing. This is mainly due to the high cost performance and perfect after-sales service system of Chinese brands, which makes the excavator maintain stable growth in the international market.

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Explore the bauma CHINA Mini Program in 18 Languages
18Oct
Explore the bauma CHINA Mini Program in 18 Languages

To better serve more than 200,000 visitors from over 130 countries and regions, and help global buyers efficiently connect with their target exhibitors and products, bauma CHINA 2024 has launched the brand-new official WeChat Mini Program.   Accessible through WeChat, this Mini Program, just like the “Pocket Visitor Guide”, allow you to easily browser the exhibitor directory and floor plans, search for target products, stay updated on the schedule of supporting programs and plan your visit in advance. Even more importantly, you can post your purchasing requirements through the Mini Program and directly contact with potential partners online. Let's experience it!

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Analysis of the domestic excavator market in the first half of the year and the market outlook in the second half of the year
18Oct
Analysis of the domestic excavator market in the first half of the year and the market outlook in the second half of the year

1. Market sales in the second half of the year: From the current trend of the real estate market, the construction area and new opening area of the real estate market in the second half of the year will still fall, which is difficult to drive the market demand for related machinery and equipment.       However, with excavators as a barometer, the construction machinery industry has once again entered the equipment renewal cycle. In the second half of the year, the small excavators that took the lead in entering the renewal cycle will continue to pull the overall sales of excavators to continue to rebound.       At the same time, under the promotion of large-scale equipment renewal policies around the country, nearly one million old excavators below the second and more than ten years will be gradually phased out. Although, due to the downturn in the downstream market such as real estate, most of the old excavators have no replacement demand, but the huge stock of equipment is cleared, which is conducive to repairing the supply and demand relationship in the rental market.       Based on this, it is expected that the excavator market will maintain a growth rate of about 20% in the second half of the year, and it is expected that the domestic excavator sales will exceed 100,000 units in the year, an increase of about 15%.       2. Agent development: As small mining takes the lead in entering the update cycle, the proportion of small mining sales continues to increase. This is not good news for agents.       On the one hand, in order to ensure market share, most agents sell small mining machinery at a loss, and the more they sell, the greater the loss; On the other hand, because small mining customers are more fragmented and more mobile, the gap between the marketing coverage cost of small mining machinery and the three guarantees service cost is not obvious.       At the same time, for agents, there is little business to do after the market demand for small mining models such as parts and maintenance. However, the debt risk of small mining sales is relatively low, the legal machine repurchased by agents is also relatively easy to dispose of cash, and the overall debt risk control exposure is better than that of large mining.       Therefore, it is expected that the operating profit of agents in the second half of the year will continue to deteriorate. However, the increase in small mining sales and the acceleration of the issuance of special bonds in the second half of the year are expected to ease the pressure on the operating cash flow of enterprises.In addition, due to the rising proportion of small mining sales, the market share of joint venture/foreign brands will still be eroded and squeezed by domestic brands.       In summary, although from the data point of view, the excavator market has bottomed out, but even if the domestic sales of more than 100,000 units this year, it is difficult to correct the imbalance between excess capacity and market demand, the price war will not go away, and most agents and leasehold "days" are still suffering. Oems can rely on the sea to "replenish energy", and agents can rely on what?

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About Us
quanzhou kaiyusi machinery manufacture Co.,ltd, is professional manufacturer of undercarriage parts, which used for excavator and bulldozer ,loader .Our main product are track roller ,from idler ,sprocket ,carrier roller ,bucket bush , tooth pin ,link bushing ,track bolt ,and swearing bearing ,track adjuster.these parts are used for brands like komatsu ,caterpillar ,hitachi, kato, sumitomo,kobelco, daewoo, hyundai,volvo,yanmar yuchai ,SWE etc,The heat treatment of our products adopts the latest German machine to strictly control and confirm the quality of the products after processing, so that every customer can rest assuredPurchase advanced producing and inspect machines ,produce strictly according to the standards of national and industry ,we make our effort to execute the management model of modern enterprise.we have passed the SGS:ISO9001:2008 certificate,We export to all over the world, the Middle East, Europe, America, Japan, Korea, Russia and other Central Asian countries .we have won the great reputation in market under the high grad service and productions , sales network has spread all over the domestic and oversea markets.

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+86-15805989981
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Location No.6 Jinhe Avenue, Binjiang Industrial Zone, Nanan, Quanzhou
WhatsApp +8615805989981

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