• EC290 R300-5 SK350-8  K5V140DTP  Excavator Hydraulic  Pump   LC10V00029F3
  • EC290 R300-5 SK350-8  K5V140DTP  Excavator Hydraulic  Pump   LC10V00029F3
  • EC290 R300-5 SK350-8  K5V140DTP  Excavator Hydraulic  Pump   LC10V00029F3
  • EC290 R300-5 SK350-8  K5V140DTP  Excavator Hydraulic  Pump   LC10V00029F3
EC290 R300-5 SK350-8  K5V140DTP  Excavator Hydraulic  Pump   LC10V00029F3

EC290 R300-5 SK350-8 K5V140DTP Excavator Hydraulic Pump LC10V00029F3

Product Details:

Place of Origin: QingDao
Brand Name: Crystal
Certification: ISO9001 / EN ISO 12100 / OHSAS 18001 / SGS
Model Number: SANY235/285

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
Get Best Price Contact Now

Detail Information

Product Name: Excavator Hydraulic Pump Brand Name: Crystal
Application: Excavator Machine Model: K5V140DT
Noise: Low Noise Delivery Time: Within 3 Working Days
Package: Wooden Box
High Light:

Excavator Hydraulic Piston Pump Assembly


Hydraulic Piston Pump Assembly Low Noise



Product Description


K5V140DT Excavator Hydraulic Pump SANY235/285 Hydraulic Piston Pump Assembly


Product Description

Product name

K5V140DT Excavator hydraulic pump

Applicable model


Chinese brand, crystal 
New, We produce ourselves
Displacement 140
Rated Pressure (MPa) 34.3
Maximum Pressure (MPa) 37.4
Rated Speed (rpm) 1800
Maximum Speed (rpm) 2600
Minimum Speed (rpm) 800
Oil Temperature Range (℃) -20 ~ +80
Hydraulic Oil Viscosity Range (mm²/s) 10 ~ 75
Maximum Flow Rate (l/min) 300
Efficiency (%) ≥ 85
Gear Pump Type Dual Axial Piston Swash Plate Gear Pump
Drive Mode Hydraulic Drive
Hydraulic drive systems for excavators, loaders, and other  machinery
Direction of turning Right-handed rotation
Net Weight 130KG
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


Principle and maintain methods of hydraulic pump

As an important engineering machinery and equipment, excavator plays an important role in the fields of construction, excavation, earthwork and so on. Understanding the working principle of excavators and correct product maintenance methods is the key to ensure their efficient and stable operation.

Working principle of excavator

The working principle of the excavator can be summarized as the following steps:

Hydraulic system work: excavator adopts hydraulic system as a means of power transmission. The hydraulic pump converts the mechanical energy provided by the power source into high pressure hydraulic energy, and then transmits it to the hydraulic motor and hydraulic cylinder through the hydraulic pipeline.
Hydraulic motor conversion: The hydraulic motor receives the hydraulic energy, converts it into mechanical energy, drives the rotating device, and makes the rotary platform of the excavator rotate 360 degrees without dead Angle.
Hydraulic cylinder power: The hydraulic cylinder receives the hydraulic energy, converts it into mechanical energy, pushes the hydraulic rod to achieve expansion and expansion, and drives the auxiliary devices such as buckets for digging and unloading operations.
Control system operation: The operation of the excavator is realized by the control system, and the operator controls the work of the hydraulic system by operating the joystick and the foot pedal to achieve various actions of the excavator.
Product Maintenance Guide

Proper product maintenance can ensure the efficient and stable operation of the excavator and extend the service life. The following is the guide to the maintenance of excavator products:

Regularly check the hydraulic system: regularly check the oil level and oil quality of the hydraulic oil is normal, keep the hydraulic system full of enough hydraulic oil, and keep the oil clean. Check whether each hydraulic pipe and connector is firm to avoid hydraulic oil leakage.
Cleaning and maintenance of hydraulic pump: regularly clean and maintain the hydraulic pump to ensure that there is no debris and dirt inside the hydraulic pump to prevent the performance of the pump and failure.
Pay attention to hydraulic oil temperature: pay attention to observe the hydraulic oil temperature during work to ensure that it runs within the normal range. Too high hydraulic oil temperature will affect the stability of the hydraulic system, too low will affect the flow performance of the hydraulic oil.
Hydraulic cylinder maintenance: check the seal of the hydraulic cylinder regularly, and replace it in time if it is damaged to maintain the normal working condition of the hydraulic cylinder.
Regular lubrication: the various parts of the excavator are regularly lubricated to maintain the flexible operation of key components.
Pay attention to the operation method: When using the excavator, pay attention to the correct operation method to avoid damage caused by excessive load and improper use.
The working principle of excavator and correct product maintenance are the key to ensure the efficient and stable operation of excavator. By understanding how it works and paying attention to the details of product maintenance, we can better control this important construction machinery and provide more efficient and reliable support for all types of engineering operations!


Product application range


As a representative of multi-functional construction machinery, excavator's excellent performance and wide range of application make it an indispensable partner in construction, excavation, earthwork and other fields. Whether it is urban construction, transportation infrastructure construction, mining, agriculture, excavators are expanding unlimited possibilities.
1. Urban construction

In urban construction, excavator is one of the essential construction machinery. It can be used for infrastructure construction, such as the construction and repair of roads, Bridges, subways, etc., to quickly and efficiently complete tasks such as digging, filling, and leveling the ground. At the same time, the excavator can also carry out greening projects and slope protection construction, providing strong support for the beautification of the city and environmental improvement.

2. Mining and resource development

In the mining industry, excavators are important mining equipment. It can efficiently exploit ore, coal, oil and other resources, and realize the effective development and utilization of mineral resources. Excavators can also be used in open pit mining to excavate, load and transport operations to improve mining efficiency and reduce costs.

3. Agriculture

Excavators are also widely used in agriculture. It can be used for the construction and maintenance of farmland water conservancy facilities, such as the excavation and renovation of irrigation channels. At the same time, the excavator can also carry out farmland leveling, land improvement and other work, improve soil quality, and promote the growth and yield of crops.

4. Environmental protection and clean energy construction

With the improvement of environmental awareness, the construction of clean energy has been paid more and more attention. Excavators play an important role in the construction of clean energy such as solar energy and wind energy. It can be used for the installation and adjustment of solar photovoltaic panels, the foundation construction of wind turbines and other tasks, providing strong support for the promotion of clean energy.

5. Water conservancy project

In water conservancy projects, excavators are indispensable assistants. It can be used for river dredging, dam construction, river regulation and other tasks to maintain and improve the stability and safety of water conservancy facilities. Excavators can also carry out flood control and drainage works, playing a key role in warding off floods and securing water supplies.

The wide range of use of excavator products makes it a representative of multi-functional engineering partners. In various fields, excavators are providing powerful power and flexible applications for engineering construction and resource development. Whether it is urban construction, mining, agriculture, environmental protection, water conservancy and other fields, excavators can be seen everywhere, expanding unlimited possibilities to achieve diversified engineering needs!


Technological advantage

EC290 R300-5 SK350-8  K5V140DTP  Excavator Hydraulic  Pump   LC10V00029F3 0


Since its establishment, our excavator hydraulic pump manufacturer has been committed to technological innovation and product optimization, and has become a technology leader in the field of excavator hydraulic pump with years of accumulation and continuous pursuit of excellence.
1. Advanced hydraulic technology

Our excavator hydraulic pump manufacturer leads the development trend of hydraulic technology. Using advanced hydraulic technology, our hydraulic pumps can achieve efficient energy conversion, converting the mechanical energy output of the power source into high pressure, high flow hydraulic energy, providing strong power for construction machinery. At the same time, our hydraulic pump has the characteristics of stable pressure output, no matter what the condition can maintain a stable pressure output, to ensure the smooth operation of the hydraulic system.

2. Intelligent control technology

Our hydraulic pumps are equipped with intelligent control system to monitor the working state of the hydraulic system in real time and automatically adjust the hydraulic output. The intelligent control technology enables the hydraulic pump to adjust intelligently according to the actual working situation, providing the best power support for the construction machinery, and achieving more intelligent and efficient operation. The application of intelligent control technology enables the excavator to perform well under complex tasks and bring users a more comfortable and convenient operating experience.

3. High quality materials and exquisite craftsmanship

We insist on the use of high-quality materials and exquisite technology to manufacture hydraulic pumps to ensure the reliability and durability of our products. High-quality materials and exquisite technology make the hydraulic pump run stably for a long time under harsh working environment, providing a strong guarantee for the continuous and efficient work of construction machinery. We continuously optimize the production process and manufacturing process to improve product quality and performance to meet the needs and expectations of users.

4. Broad adaptability

Our hydraulic pumps have a wide range of adaptability for all types and brands of excavators. From small excavators to large excavators, from loaders to bulldozers, our hydraulic pumps can be perfectly adapted to provide efficient and stable power output for construction machinery to fully adapt to different work needs.

Our excavator hydraulic pump manufacturer is famous for its leading technology and excellent quality. With advanced hydraulic technology, intelligent control technology, high-quality materials and exquisite technology, as well as broad adaptability, our hydraulic pump brings more efficient and reliable power output to the construction machinery industry, leading the future development of excavator hydraulic pump technology. Bring endless possibilities and convenience to the user's work!

Hydraulic pump operation method

Excavator hydraulic pump is the core component of excavator walking system, and its operation method is very important for the performance and safety of excavator.

First, check the working state of the hydraulic pump:

Before operating the hydraulic pump of the excavator, first check the working state of the hydraulic pump. Ensure that the oil level of the hydraulic oil is sufficient, and check the hydraulic oil for impurities. At the same time, observe whether the hydraulic pump has abnormal sound or oil leakage phenomenon. If there is any abnormal situation, it should be stopped and repaired immediately.

Second, start the hydraulic pump:

Before starting the hydraulic pump of the excavator, ensure that the reversing valve of the hydraulic pump is in the neutral position. Then, press the start button of the excavator, and the hydraulic pump begins to work. After the normal operation of the hydraulic pump, the reversing valve can be slowly switched to the required working state.

Third, adjust the hydraulic pump flow and pressure:

Adjust the flow and pressure of the hydraulic pump according to the specific work requirements. By operating the control valve, the output flow of the hydraulic pump can be adjusted to control the speed of the hydraulic cylinder. At the same time, according to the different working environment, adjust the working pressure of the hydraulic pump to ensure the safe and stable operation of the hydraulic system.

4. Flexible operation of excavator:

After being familiar with the operation method of the hydraulic pump, the operator can realize the flexible movement of the excavator by controlling the excavator's joystick and foot pedal. The control lever can adjust the flow rate and pressure of the hydraulic pump to realize the forward, backward, steering and other actions of the excavator. At the same time, through the operation of the foot pedal, you can control the start and stop of the hydraulic pump and speed adjustment.

5. Stop the hydraulic pump safely:

After using the hydraulic pump of the excavator, the work of the hydraulic pump should be stopped in time. First, switch the reversing valve of the hydraulic pump to the neutral position, and then press the stop button of the excavator, and the hydraulic pump stops working. After stopping the hydraulic pump, turn off the power source of the excavator in time to ensure that the hydraulic system is in a safe state.

The operation method of excavator hydraulic pump is an important link to ensure the safe operation and efficient operation of excavator. By being familiar with the working state of the hydraulic pump, starting the hydraulic pump, adjusting the flow and pressure, flexibly operating the excavator, and safely stopping the hydraulic pump, the operator can give full play to the performance of the hydraulic pump, realize the smart control of the excavator, and contribute the heart of the project to the project construction. At the same time, the rational use of hydraulic pumps can also extend the service life of hydraulic pumps, reduce maintenance costs, and ensure the efficient operation of excavators in various engineering tasks.







EC290 R300-5 SK350-8  K5V140DTP  Excavator Hydraulic  Pump   LC10V00029F3 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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