Who are we
Committed to becoming an excellent manufacturer of hydraulic components
Qidong Lianyi Machinery Manufacturing Co., Ltd. is one of the earliest production and construction machinery, mining machinery, construction machinery, metallurgical machinery supporting hydraulic parts companies. It mainly produces variable piston pumps such as A4VSO, A10VSO, A7V, A2F, and a full series of CY14-1B axial piston pumps and CY-Y series oil pump electric units and XMF-40L (75F) axial piston motors, hydraulic stations and hydraulic systems.
  • 2000
    Founded in 2000, we are committed to the R&D and manufacturing of piston pumps and motors.
  • 20+
    We have more than 20 years of experience in the production of hydraulic parts, products run stably, long service life.
  • 2003
    We attach importance to product quality, the company passed the ISO9001 quality management system in 2003.
A4V is used in metallurgical industry (blast furnace, steel rolling, electric furnace and other hydraul...
Axial piston pumps are generally composed of main components such as the cylinder body, oil distribution plate There are multiple plungers in the cylinder body
Plunger pumps are divided into two types: radial piston pumps and axial piston pumps The plunger is distributed
The service life of a plunger pump is related to regular maintenance, the quantity and quality of hydraulic oil,

The company has strong technical strength and manufacturing capabilities, with marketing teams and service networks spread across multiple provinces across the country. The product design is exquisite and the quality is excellent, winning the trust and respect of new and old customers. Our engineers can provide professional advice based on the customer's usage requirements.