We can provide hydraulic counter balance valve, hydraulic pumps, hydraulic swing motors, travel motors, cylinders, hydraulic control valves, proportional valves, handles, controllers, filter materials, filter elements and other accessories for many brands of mechanical products. Brands such as: XCMG, CAT, SANY, Komastu, Doosan, Volvo, Hitachi, Kobelco, etc.
Product Features:
The main piston for overflow is controlled by the pilot pressure, and the reverse flow working pressure is controlled by reducing the overflow set pressure.
To achieve optimal safety performance, these valves should be installed close to the actuator, using either flange connections or pipe installations.



| Name | Counter Balance Overcenter Valve |
| Flow | 40-350 l/min |
| Bar | 350-450 |
| Type | Single acting and Double acting |
TUNR: A one-stop solution provider for hydraulic system integration and matching.
The company is located in Xuzhou, the capital of engineering machinery, backed by XCMG's mature supporting system and complete component resources. It has built a core technology system characterized by "electromechanical hydraulic system integration" and a "design-manufacturing-delivery" full cycle service system guided by customer personalized needs, and become the strategic partner of XCMG AMCA.
TUNR adheres to the management style of "close collaboration, openness and inclusiveness", and deeply cultivates the market with precision products and lean services. Since its establishment, it has been widely recognized and praised by customers from various industries.
TUNR's main business:
Integrated design and manufacturing of hydraulic systems, design and research and development of non-standard valve groups, agency sales and services of imported hydraulic valve products, and agency sales and services of imported electrical products.
TUNR products' application areas:
The power industry, wind power industry, construction machinery industry, steel metallurgy industry, municipal sanitation, petroleum industry, paper industry, shipbuilding industry, etc.



Q1: Are you a businessman or a manufacturer?




















