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®
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 www.dynavis.com