Press release
Oil Additives
April 12, 2012

SANY-DYNAVIS® High Efficiency Energy Saving Hydraulic Fluid Introduced at INTERMAT 2012

China-based SANY Heavy Industry Co., Ltd. (SANY), one of the world's

largest manufacturers of construction machinery, is introducing its new

High Efficiency Energy Saving Hydraulic Fluid, SANY HE, at the INTERMAT

construction equipment show in Paris. Formulated with DYNAVIS®

technology developed by Evonik Oil Additives, the new fluid provides

hydraulic equipment operators with exceptional performance in fuel

savings and productivity improvements.


–more power, less fuel is the slogan”, explains Mr. MAO Jianhua,

Deputy General Manager of SANY. “Since the benefits of reduced fuel

consumption included fundamental environmental benefits like reduced CO2

emissions, we see DYNAVIS®

as a technology that complements our own

focus on the environment and resource efficiency, and creates more value

for our customers”.

In search of more efficient hydraulic systems

The hydraulic system is a key factor in determining fuel consumption in

engineering machinery. Most motions are performed hydraulically with the power

derived from a hydraulic pump. All pumps, however, are vulnerable to a powersapping phenomenon known as “internal leakage”. Internal leakage occurs to a

greater or lesser extent, depending on working conditions. As hydraulic oils

formulated with DYNAVIS®

technology reduce this loss of power in all

temperature ranges, considerable fuel savings are possible.

A hydraulic fluid will work optimally only within a defined temperature range.

Simple “monograde” fluids are quite limited in their temperature operating range.

As operating temperatures increase, their performance can weaken significantly,

resulting in sluggish equipment performance.

In contrast, high quality, multi-grade hydraulic fluids formulated with


technology enjoy a broader temperature operating range and

thereby improve equipment productivity and fuel efficiency. At higher

temperatures, hydraulic fluids formulated with DYNAVIS®

technology help

reduce the pump’s internal leakage and the hydraulic fluid’s ability to lubricate is

retained. As a result, power output is higher, fuel consumption goes down and

the equipment is more responsive to operator controls. Even the normal “wear

and tear” of seals and other hydraulic components is diminished.

Made for high temperatures

Long working shifts for equipment running at high operating temperatures will

cause monograde hydraulic fluids to gradually become thinner. This results in

“internal leakage”, a loss of efficiency as more and more thin heated oil

backwashes through the pump vanes or pistons of the hydraulic pump, contrary

to the intended pumping direction. Power is wasted as the pump keeps on

running while the equipment response to the operator’s commands becomes

sluggish and delayed. This unwanted recirculation also increases friction and

further heats up already hot fluid.


technology in fluid formulation reduces the loss of power due to

internal leakage and puts the brakes on the resulting vicious cycle of hydraulic

fluid becoming hot, thin, and then again hotter and thinner. The DYNAVIS®


formulated fluids work to maintain the stability of the power output of the

hydraulic pump, even after many hours of work under maximum load. With better agility and performance, the equipment completes more load cycles

and/or realizes fuel savings of 5 percent and above.

At the SANY stand at the INTERMAT exhibition Evonik Oil Additives

representatives will be available to support the SANY Team with additional

technical information as they explain the DYNAVIS®

technology and its potential

benefits to customers.

For more information visit