Ningbo Economic & Technical Development Zone Yili Damper Co., Ltd was founded in 1995 and located in the Ningbo Economic & Technical Development Zone. We specialize in the research, development and production of Gas springs, Oil cylinders for fitness facilities, various Dampers and Rollers for electric treadmills.

Our company produces a great variety of gas springs including YQ compression gas springs, JKQ angle-lockable gas springs, and TQ special gas springs. Our gas springs are highly secure and reliable, have consistent strength value, long lifespan and the characteristic of none blow-by. They're widely applied in fitness facilities, automobiles, medical equipment and furniture decoration.

Our oil cylinders for fitness facilities have the characteristics of even strength value, no empty-distance, no infiltrate and leakage of oil, and long lifespan. They can satisfy all sorts of fitness facilities such as rowing machines, mountaineering machines and steppers.

Our dampers have the characteristics of obvious effect of shock absorption, no noise, and long lifespan. They are suitable for shock absorber for car seat, opening and closing systems of cabinet sliding doors, drawers, room windows and doors.

The rollers for electric treadmills include a variety of specifications ranging from Φ38mm to Φ100mm and have the characteristic of reliable structure, high concentricity, high precision dynamic balancing, low noise and long lifespan. They can satisfy all home-used or commercial-used electric treadmills.