• EC140 Hydraulic Excavator Pump HD512 DH150 K3V63DTP Plunger Pump
  • EC140 Hydraulic Excavator Pump HD512 DH150 K3V63DTP Plunger Pump
  • EC140 Hydraulic Excavator Pump HD512 DH150 K3V63DTP Plunger Pump
EC140 Hydraulic Excavator Pump HD512 DH150 K3V63DTP Plunger Pump

EC140 Hydraulic Excavator Pump HD512 DH150 K3V63DTP Plunger Pump

Product Details:

Place of Origin: QingDao
Brand Name: Crystal
Certification: ISO9001 / EN ISO 12100 / OHSAS 18001 / SGS
Model Number: K3V63DTP

Payment & Shipping Terms:

Minimum Order Quantity: 1 Sets
Price: Reconsideration
Packaging Details: Wood case
Delivery Time: 3-5days
Payment Terms: L/C, T/T
Supply Ability: 1000 Sets/month
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Detail Information

Product Name: Excavator Hydraulic Pump Brand Name: Crystal
Application: Excavator Machine Model: K3V63DTP
Warranty: 1 Year Delivery Time: Within 3 Working Days
Package: Wooden Box
High Light:

Hydraulic Excavator Pump HD512


Hydraulic Excavator Pump DH150



Product Description

K3V63DTP Excavator Hydraulic Pump EC140 HD512 DH150 Plunger Pump Piston PUMP  

Product Description

Product name

K3V63DTP Excavator hydraulic pump

Applicable model

EC140 HD512 DH150

Chinese brand, crystal 
New, We produce ourselves
Displacement 63
Rated Pressure (MPa) 34.3
Maximum Pressure (MPa) 34.3
Rated Speed (rpm) 2500
Maximum Speed (rpm) 3000
Minimum Speed (rpm) 600
Oil Temperature Range (℃) -20 ~ +80
Hydraulic Oil Viscosity Range (mm²/s) 10 ~ 75
Maximum Flow Rate (l/min) 295
Input Power (kW) 63.1
Output Power (kW) 47.1
Efficiency (%) ≥ 85
Drive Mode Hydraulic Drive
Hydraulic drive systems for excavators, loaders, and other  machinery
Direction of turning Right-handed rotation
Net Weight 36KG
Payment term
TT bank transfer, Western Union,L/C
Warranty time
12 months
Delivery time
Have in stock, within 3-5 days to ship out it


Composition and principle of hydraulic pump

The hydraulic pump of excavator is the core component of the hydraulic system of excavator, which undertakes the important task of transporting hydraulic oil and providing power. Its efficient stability and reliability provide a strong power support for excavators.
Component composition:

Pump body: The pump body is the main part of the hydraulic pump of the excavator, usually made of high strength cast iron or cast steel. High pressure chamber and low pressure chamber are designed inside the pump body. Through the structure of the pump body, the suction and output of hydraulic oil are realized.
Drive shaft: The drive shaft is connected to the hydraulic pump and the excavator's engine or motor, and the power is transferred to the hydraulic pump to make it operate normally.
Rotor assembly: The rotor assembly consists of the main rotor and the slave rotor, located between the high pressure chamber and the low pressure chamber of the pump body. The meshing between the main rotor and the slave rotor forms a sealed working chamber to realize the suction and output of hydraulic oil.
Control valve assembly: The control valve assembly is used to control the start and stop of the hydraulic pump, as well as to regulate the output flow and pressure. These control valves are usually controlled by mechanical or electrical systems to ensure the stable operation of the hydraulic pump under different working conditions.
How it works:

The working principle of excavator hydraulic pump is based on the principle of volume change, usually using gear pump, plunger pump or vane pump and other types.

Oil suction stage: In the low-pressure chamber of the pump body, when the rotor assembly rotates, the volume of the low-pressure chamber increases to form a negative pressure area. At this time, the hydraulic oil is sucked into the pump body and enters the hydraulic pump through the oil suction port.
Oil pressure stage: With the rotation of the rotor assembly, the volume of the low pressure chamber gradually decreases, and the hydraulic oil is compressed and enters the high pressure chamber of the pump body. At the same time, the volume of the high pressure chamber gradually increases, pushing the compressed hydraulic oil to the high pressure pipeline of the hydraulic system.
Output stage: After the adjustment of the control valve assembly, the compressed hydraulic oil in the high pressure chamber is output to the hydraulic system to provide the required power for the excavator. The hydraulic pump continues to work to maintain a stable hydraulic oil output and ensure the efficient operation of the excavator.

Excavator hydraulic pump is the core component of excavator hydraulic system, its component composition and working principle together constitute its efficient and stable power output. Through the cooperation of the pump body, drive shaft, rotor assembly and control valve assembly, the hydraulic pump realizes the suction, compression and output of hydraulic oil, which provides a powerful power source for the various work of the excavator.


Hydraulic pump operation manual


Thank you for choosing our excavator hydraulic pump products. This operation manual will provide you with detailed instructions and maintenance guides to help you fully understand and correctly operate the excavator hydraulic pump to ensure that it provides powerful power for your excavator efficiently and stably.

Product Overview:
Excavator hydraulic pump is the core component of excavator hydraulic system, which is used to transport hydraulic oil and provide power for hydraulic components. It has the characteristics of high flow output and high pressure stability, and is suitable for various excavator models and application scenarios.

Safety Information:
Before operating the hydraulic pump of the excavator, be sure to carefully read and follow the following safety instructions:

Before operation, ensure that the excavator is in a stable shutdown state and cut off the power source.
It is strictly prohibited to open the cover plate of the hydraulic pump or remove key components during operation.
When maintaining and maintaining hydraulic pumps, relevant safety procedures and operating regulations must be observed.
Operation steps:
Follow these steps to properly operate the excavator hydraulic pump:

Step 1: Ensure that the hydraulic pump and excavator are shut down and cut off the power source.

Step 2: Check the liquid level of the hydraulic pump to ensure that the hydraulic oil is within the appropriate mark line range.

Step 3: Start the power source of the excavator, slowly increase the speed of the hydraulic pump, so that it reaches the normal working state.

Step 4: According to the actual work needs, adjust the output flow and pressure of the hydraulic pump to ensure that it meets the work requirements.

Step 5: During the work of the excavator, pay attention to monitoring the operating status of the hydraulic pump, and stop the machine in time for inspection if there is an anomaly.

In order to ensure the normal operation of the hydraulic pump of the excavator, regular maintenance is very important. Here are some suggestions:

Check the liquid level of the hydraulic pump every day, and add hydraulic oil in time.
Replace the hydraulic oil regularly and clean the tank and filter.
Check the seals and connecting parts of the hydraulic pump to ensure that there is no oil leakage.
Check the operating status and pressure of the hydraulic pump regularly, and deal with any anomalies in time.
During use, if the hydraulic pump is abnormal, you can preliminarily eliminate it according to the following methods:

If the hydraulic pump oil leakage is found, check whether the seal is damaged and replace it in time.
If the hydraulic pump appears noise or vibration, check whether the pump body and connecting parts are loose.
If the output flow of the hydraulic pump is unstable, check whether there is blockage or pump body damage.
If you can not solve the problem, please contact our after-sales service team in time, we will provide you with professional technical support.


Product application range

First, intelligent technology:

Adaptive control: The future excavator hydraulic pump will be further intelligent and adopt adaptive control technology. It can adjust the output in real time according to the working condition and load of the excavator to provide more accurate hydraulic control and optimize the use of energy.
Autonomous operation: With the development of artificial intelligence technology, excavator hydraulic pumps may realize autonomous operation, sense the surrounding environment in real time through sensors and algorithms, and automatically complete work according to task requirements, improving work efficiency and safety.
Second, environmental protection and sustainable development:

Electric hydraulic pump: There may be more electric hydraulic pump technology in the future to reduce the carbon emissions and noise pollution of excavators. The electric hydraulic pump can use clean energy to drive and improve the environmental performance of the excavator.
Biohydraulic oil: Biohydraulic oil is a renewable hydraulic oil that can replace traditional mineral oil and reduce its environmental impact. Future excavator hydraulic pumps may use bio-hydraulic oil to achieve more environmentally friendly engineering construction.
Iii. Expansion of emerging areas:

Aerospace: The high performance and stability of hydraulic pumps for excavators may find new applications in the aerospace sector. It can be used in aircraft landing gear, flight control systems, etc., to improve aircraft performance and safety.
Marine engineering: The future excavator hydraulic pump may be extended to the field of Marine engineering, for seabed resource development, deep-sea exploration and other tasks, to help Marine science and resource utilization.


Technological advantage

EC140 Hydraulic Excavator Pump HD512 DH150 K3V63DTP Plunger Pump 0


In the field of engineering, excavator hydraulic pump is an indispensable key component, which plays a crucial role in the performance and efficiency of excavator. And we are proud of the excavator hydraulic pump, not only in quality excellence, but also with innovation to lead the trend, to bring you a compelling experience!

Perfect integration, efficient performance
Our excavator hydraulic pumps are carefully designed and optimized to blend perfectly with all excavator models. Its efficient performance enables your excavator to maximize its potential in a wide range of work scenarios and easily meet diverse construction challenges.
Intelligent control, intelligent control
Leading the development of intelligent hydraulic pumps, our products are equipped with advanced intelligent control systems. With intelligent control, you can monitor the working status of the excavator in real time and automatically adjust the output of the pump as needed, thereby improving construction efficiency and reducing energy consumption.
Lightweight design, flexible application
We pay attention to the light design of the product, reduce the weight of the pump, so that the excavator operation is more flexible. Whether it is a small working space or difficult terrain, our hydraulic pumps can help you complete construction tasks quickly, so that you can do more with less.
Rigorous testing, stable and reliable
In the production process, we carry out strict testing and quality inspection of the hydraulic pump to ensure its stability and reliability. You can rely on our products to deliver lasting and consistent performance under any conditions.
Customer first, personalized customization
We regard customer needs as our top priority and focus on communication and cooperation with customers. We offer customized solutions to help you stand out in the engineering field by creating the most suitable hydraulic pump for your excavator model and engineering requirements.
Excavator hydraulic pump, excellent quality, innovation leading. Choose us to give your excavator a new lease of life for a more efficient and smoother engineering experience!



EC140 Hydraulic Excavator Pump HD512 DH150 K3V63DTP Plunger Pump 1

Our products are in line with international standards and have obtained the Chinese quality trust unit


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If you have more needs, we can also provide you with customized services, our products are under continuous development to ensure the continuous needs of customers.


Our Services

Dear Customer,

Thank you for your interest and trust in our hydraulic walking device products and services. We are a company specializing in the production of high-quality hydraulic walking devices and have accumulated years of experience and technical expertise in this field. Our products are not only reliable in quality, but also perform well in terms of performance, safety and durability.

Our service concept is customer-centric, with the goal of meeting customer needs, adhering to the service philosophy of "integrity, professionalism, efficiency, and innovation", and always maintaining communication and exchange with customers to ensure customer satisfaction and trust. Our team is composed of experienced, skilled, and enthusiastic professionals who provide customers with comprehensive service support, including:

1. Customization of products: We can provide customers with customized hydraulic walking device products tailored to their needs and requirements to ensure that the products meet the customer's usage and environmental requirements.

2. Technical support: We have a professional technical team that can provide customers with technical support for product selection, installation and commissioning, maintenance and other aspects to ensure that customers can use our products smoothly.

3. After-sales service: We provide 7x24-hour after-sales service to ensure that customers can get timely solutions to any problems encountered during use.

Our products have been exported to overseas markets and have won unanimous praise from customers. We believe that through our professional technology and high-quality services, we can become your trusted long-term partner.

If you have any needs or questions about our products and services, please feel free to contact us. We will provide you with the best service and support and look forward to working with you!


Contact us


Whatsapp:8619554163292 8615805343909



1, Q: Are you a manufacturer or a trading company? A: We are a manufacturer of quality final drives located in Qingdao National High-Tech Industrial Development Zone with 14 years of production experience .

2. Q: What is your company size ?
A: Ours factory covers an area of 70,000 square meters with 120 employees . Turnover of 2019 is 20 million USD .

3, Q: What certificate do you have? A: ISO9001 / EN ISO 12100 / OHSAS 18001 / SGS

4, Q: How long is your delivery time? A: We keep stock for conventional products . New orders to produce takes about 20 days. Customized products takes about 40 days .

5, Q: What kind of payment terms do you accept? A: T.T. / DP at sight / LC .

6, Q: What is your warranty policy?
A: All our products are warranted for one full year from date of delivery against defects in materials and workmanship.



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