Nullam dignissim, ante scelerisque the is euismod fermentum odio sem semper the is erat, a feugiat leo urna eget eros. Duis Aenean a imperdiet risus.

PC78
PC78

PC78

708-3T-00220 hydraulic assembly is used in excavators and other construction machinery hydraulic pumps.
PC78
PC78
Electromagnetic proportional pressure reducer: Receives the current signal from the controller and outputs the corresponding pilot control oil pressure to drive the servo piston.

Pump controller: Typically integrated into the main controller of the entire machine, it receives signals from engine speed, throttle position, operating mode, pressure sensors, etc., to calculate the optimal pump displacement command.

Sensors: Such as pump outlet pressure sensors and speed sensors, providing feedback to the controller.
Brand YIKAN Origin Guangdong, China
Mechanical test report Available Video factory inspection Available
Product Name Hydraulic pump Model PC78
Part number 7083T00220 Application field Excavator
Warranty/Spare Parts Six months Quality High guarantee
Status 100% new Minimum order quantity 1 piece
Packaging Packed in wooden cases Delivery date 15 working days
PRODUCTS

PRODUCTS

View More
D155

D155

Hydraulic pumps 706-7H-01101, 708-1H-00251, and 708-1H-00250 are used in the hydraulic assemblies of bulldozers D155AX-6 and D155AX-8, and other construction machinery.
Learn More
PC78

PC78

708-3T-00220 hydraulic assembly is used in excavators and other construction machinery hydraulic pumps.
Learn More
PC400-7

PC400-7

708-2H-00030, 708-2H-01031, 708-2H-00031, and 708-2H-00032 are core hydraulic components suitable for excavator main hydraulic pumps.
Learn More
PC1250 2

PC1250

708-2L-00610, 708-2H-00440, and 708-1L-00800 hydraulic pumps are suitable for hydraulic components assemblies in large excavators.
Learn More
PC3000-6

PC3000-6

708-2K-00024, 708-2K-00014, and 708-2K-00013 main pumps are hydraulic pump assemblies suitable for excavators and other construction machinery.
Learn More
WA900 2

WA900

708-4L-00931, 708-4L-00930, 708-2L-0095 hydraulic components used in loader hydraulic pump assemblies and construction machinery.
Learn More
News

News

View More
Industry News1

26/ December

A comprehensive overview of reliable bulldozer models, providing professional selection guidance based on reliable quality and advanced technology

D31 Engine power:D31EX/PX-22: 58 kW 78 HP Weight: D31EX-22: 7670 kg 16,910 lb D31PX-22: 8130 kg 17,930 lb D37 Engine power:D37EX/PX-22: 66 kW 89 HP Weight: D37EX-22: 7890 kg 17,400 lb D37PX-22: 8240 kg 18,170 lb D39EX Engine power:79 kW 105 HP @ 2200 rpm Weight: D39EX-22: 9040 kg 19,930 lb D39PX-22: 9480 kg 20,900 lb D51EX-22 Engine power:130 HP@ 2200 rpm Weight:27778-28881lb D65 Engine power:154 kW 207 HP @ 1950 rpm Weight: D65EX-15E0 Standard track 20280 kg 44,710 lb D65EX-15E0 long tracks 21020 kg 46,340 lb D65PX-15E0 21000 kg 46,300 lb D65WX-15E0 21140 kg 46,610 lb D155AX-8 Engine power:268 kW 360 HP @ 1900 rpm Weight:39500 kg 87,100 lb D275 Engine power:306 kW 410 HP Weight:49850 kg 109,900 lb D375-6 Engine power:474 kW 636 HP @ 1800 rpm Weight:71640 kg 157,940 lb D475-5 Engine power:641 kW 860 HP Weight:102500kg 226,010 lb
Learn More
Industry News2

29/ December

A 66-ton electric mining truck has begun a six-month trial at the Granny Smith mine, aiming to improve energy efficiency and safety by combining the advantages of both

Goldfields’ Granny Smith gold mine recently introduced an Epiroc 66-ton electric mining truck for a six-month performance trial. This truck combines the performance of electric vehicles with the practicality of diesel engines, increasing climbing speed by up to 11%, reducing fuel consumption by approximately 7%, and incorporating multiple safety features. The trial will comprehensively collect operational data to support the mine’s transition to safer, cleaner, and more efficient underground transportation. The mine currently has 19 megawatts of solar power installed capacity, and by September 2025, approximately 20% of its electricity will come from solar energy.
Learn More
Industry News3

29/ December

Born for extreme cold and complex terrain: How BEEZONE customized construction machinery for harsh working conditions in Russia

The bulldozer production project, led by the Sino-Russian joint venture BEEZONE, has moved beyond simple assembly. Currently, two Russian factories are deeply customizing and modifying the Chinese-made construction machinery to adapt it to the complex operating environments of different regions in Russia. This has enabled BEEZONE bulldozers to be successfully applied in Russia’s mining, oil and gas extraction, and various large-scale infrastructure construction sectors. Qiu Rong, Technical Director of Bizhuo Construction Machinery Co., Ltd., said: “Multiple advantages have enabled us to gain a foothold in the Russian market. First, we have continuously optimized the structure and adaptability of our equipment and improved operational efficiency by deepening cooperation with local factories. Second, we have been constantly updating our product line and launching new products such as high-power and fully hydraulic bulldozers. In addition, we have been steadily improving our after-sales service system to drive secondary sales with high-quality service. These factors together constitute our market competitiveness.”
Learn More
Company news1

26/ December

Original factory-grade precision, highly compatible and durable parts, and high cost-effectiveness,Yiyan Machinery wins cooperation intentions from multiple countries at the Shanghai Bauma China exhibition

As a leading trendsetter in Asia’s construction machinery industry, bauma China 2024 brought together over 3,500 exhibitors from 32 countries and more than 200,000 professional visitors, serving as a core platform for construction machinery parts companies to connect with international orders. Guangzhou Yiyan Machinery showcased its mainstream construction machinery parts, including the PC2000-8 and PC3000-6 models, at the exhibition, reaching preliminary cooperation agreements with buyers from multiple countries. Our highly adaptable hydraulic components and durable mechanical parts, with their “original factory precision + high cost-effectiveness,” gained recognition from overseas customers. At the exhibition: From product demonstrations to order negotiations, Yiyan Machinery demonstrated its strength in connecting the global construction equipment aftermarket.
Learn More
Company news2

26/ December

Covering major brands and offering both in-stock and customized products——Yiyan Machinery’s “original equipment manufacturer (OEM) precision” parts secured bulk purchase and matching intentions at a top-tier exhibition

In 2025, we showcased our full range of core construction machinery components (covering precision parts such as excavator hydraulic pumps/valves, pistons, and gears) at the leading domestic construction machinery aftermarket exhibition – the China Excavator Parts & Construction Machinery Exhibition. As a professional exhibition focusing on excavator and construction equipment parts in China, it gathers over 80% of the country’s construction machinery dealers, repair service providers, and OEM manufacturers. Our on-site display of PC400-7 and other compatible parts, with their advantages of “original factory precision + high cost-effectiveness,” facilitated bulk purchasing needs from over 20 regional dealers and secured cooperation intentions from 3 OEM manufacturers. This exhibition is a microcosm of Yiyan Machinery’s “precise layout and close proximity to end users” in the domestic construction machinery aftermarket – our parts cover mainstream excavator brands (Komatsu, Caterpillar, Hitachi, etc.) and can provide both spot and customized supply.
Learn More
Company news3

26/ December

At the PCVEXPO in Moscow, Yiyan Hydraulics connected with Russian and Ukrainian customers to meet their needs, achieving both order fulfillment and localized support by using durable components

In 2025, we showcased our core hydraulic components (covering a full range of piston pumps, gear pumps, hydraulic motors, etc.) at PCVEXPO, the leading industrial exhibition in the Russian-speaking world. As the most influential industrial fluid equipment exhibition in Eastern Europe and the CIS region, it attracts professional buyers from the petroleum, metallurgy, and construction machinery industries. Our D375 and PC450-8 hydraulic components, among others, demonstrated high adaptability and durability, directly addressing the customized needs of customers in Russia, Ukraine, and other Russian-speaking regions, resulting in several tentative orders on-site. This is not only about exporting products, but also about demonstrating the strength of Yiyan Hydraulic Components in the Russian-speaking industrial market – our products have passed the working condition test in the Russian-speaking region and can provide localized technical support.
Learn More
What We Do

Services we Offer

No matter what your hydraulic maintenance needs may be, we’re here to help. Contact us today to learn more about our
services and how we can assist you with all of your needs.
Processing

Processing

With years of experience in the processing industry, we offer full-chain customized processing services with our mature production system and stringent quality control standards! Whether you are conducting small-batch trial production of new products, large-scale OEM manufacturing, or customized processing of personalized products, you can enjoy a one-stop service from demand matching to finished product delivery, helping your products to be launched efficiently and quickly to the market. We boast an experienced production team and a modern processing workshop, proficient in various OEM processes including machining, stamping, injection molding, and assembly. We can adapt to the needs of various materials such as metal, plastic, and rubber, perfectly matching diverse industry scenarios including electronics, automotive parts, household goods, hardware tools, and medical devices. From product drawing analysis and processing technology planning to process execution, precision control, and finished product inspection, every step strictly adheres to industry standards, ensuring that the processed products meet precision standards, have stable quality, and strong consistency, effectively reducing your production and operating costs.
Casting

Casting

With years of experience in the casting industry, we provide core casting solutions for your product manufacturing with our exquisite craftsmanship and rigorous quality control! Whether you are developing new products through casting, mass production with casting support, or developing customized castings, you can enjoy exclusive casting services throughout the entire process, helping your products seamlessly transition from design to mass production delivery. We boast a team of experienced casting engineers and a modern casting workshop, proficient in various casting processes such as sand casting, die casting, and precision casting. Our capabilities adapt to diverse material requirements, including cast iron, cast aluminum, cast copper, and stainless steel, perfectly matching the needs of multiple industries such as machinery manufacturing, automotive parts, construction machinery, hardware tools, and medical devices. From product drawing analysis and casting process optimization to mold making, casting, subsequent processing, and quality inspection, every step strictly adheres to international casting standards, ensuring high precision, sufficient strength, and stable performance of castings, effectively enhancing the core competitiveness of our products. We offer dedicated one-on-one service throughout the entire process, responding promptly to your needs and accelerating project progress, so you don’t need to worry about technical barriers or production delays. Professional mold making services – choosing us means choosing an efficient, reliable, and worry-free partner to help your products quickly capture the market.
Abrasive tools

Abrasive tools

With years of experience specializing in abrasive molds, we leverage our expertise to ensure the smooth mass production of your products! Whether you’re developing new products, adapting them for mass production, or upgrading existing molds, you can enjoy a full-process customized abrasive mold development service. We have a team of experienced engineers who strictly adhere to industry standards at every stage, from product drawing analysis and mold structure optimization to mold processing and trial molding. We utilize advanced production equipment and high-quality raw materials to ensure high precision, long lifespan, and stable molding, effectively reducing your production losses. We offer dedicated one-on-one service throughout the entire process, responding promptly to your needs and accelerating project progress, so you don’t need to worry about technical barriers or production delays. For professional mold making, choosing us means choosing an efficient, reliable, and worry-free partner to help your products quickly capture the market!
Call For Help
Hydraulic Equipment

Contact Us

We have our own R&D and production team that supports small batch customization and sample processing related to hydraulic maintenance.

    Your Name*

    Email*

    Tel*

    WhatsApp*

    Message*

    Products
    Contacts
    WhatsApp
    Email