ECO 8 -10 / Non-adjustable

Non-adjustable hydraulic shock absorbers

ITT Enidine is revolutionizing the industrial shock absorber market with the release of the industries first environmentally friendly design.

The ECO Series was designed using materials and fluids that are safe for our environment. Models have the flexibility to accommodate a wide range of operating conditions with varying masses or propelling forces and cover a variety of application parameters. Whether your application has a low velocity/high drive force or high velocity/low drive force condition, the New ECO Series will deliver the performance you come to expect.

The ECO Series non-adjustable shock absorber product replaces legacy Enidine PRO and PM models up to the 100 Series.

  •  Enicote II surface finish:
     - Provides a RoHS compliant finish on all external components
     - Thoroughly tested to confirm product performance
     - Improved corrosion protection
 •  Copper Free Design
 •  Bio-degradable hydraulic fluids
 •  Extensive non-adjustable product line offers flexibility in both size and energy absorption
     capacity to fulfill a wide range of application requirements.
 •  Tamperproof design ensures repeatable performance.
 •  Special materials and finishes can be designed to meet specific customer requirements.
 •  Incorporating optional fluids and seal packages can expand the standard operating
     temperature range from (-10°C to 80°C) to (–30°C to 100°C).
 •  Threaded cylinders provide mounting flexibility and increase surface area for
     improved heat dissipation.
 •  A select variety of surface finishes maintains original quality appearance and provides
     the longest corrosion resistance protection.
 •  ISO quality standards result in reliable, long-life operation.

Progressive damping

provides deceleration with a gradually increasing shock force. The initial minimal resistance at impact protects delicate loads and machinery from damage. Progressive damping shock absorbers also have built-in self-compensation, so they can operate over a wide range of weights and velocities. This type of damping provides smooth deceleration in applications where energy conditions may change.

Self-compensating damping

maintains acceptable deceleration with conventional type damping characteristics. Self-compensating shock absorbers operate over a wide range of weights and velocities. These shock absorbers are well suited for high drive force, low velocity applications, and where energy conditions may change. Curve A shows the shock force vs. stroke curve of a self-compensating shock absorber impacted with a low velocity and high drive force. Curve B shows the shock force vs. stroke curve of a self-compensating shock absorber impacted with a high velocity and low drive force.

Design & Worrking principle

The design of a multi-orifice shock absorber features a double cylinder arrangement with space between the concentric shock tube and cylinder, and a series of orifice holes drilled down the length of the shock tube wall.

During piston movement, the check ring is seated and oil is forced through the orifices in the shock tube wall, into the closed cellular foam accumulator and behind the piston head.

As the piston head moves it closes off orifice holes, thus reducing the available orifice area in proportion to the velocity. After the load is removed the coil spring pushes the piston rod
outward. This unseats the check ring and permits the oil to flow from the accumulator and across the piston head, back into the shock tube. This allows quick repositioning for the next impact.

Low Pressure multiple orifice shock absorbers can provide progressive or self-compensating damping, depending on the impact conditions.