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May 07, 2014
Exxaro Grootegeluk Coal Mine is situated 25 km from Lephalale in South Africa’s
Limpopo province, this openpit mine employs 1 800 people and produces
18,6Mtpa of thermal and semisoft coking coal using a conventional truck and
shovel operation. Grootegeluk has the world’s largest beneficiation complex
where 7 600 tonnes per hour of run of mine coal is upgraded in six different
plants.

Longer life & increased reliability
The Grootegeluk fleet of dump trucks operating on the mine is fitted with the latest technology to ensure continuous operation and reliability of their fleet. Flosolve (Pty) Ltd. recently supplied and installed the new Graco DynaStar 10:1 hydraulic pump on one of the Euclid EH3500 diesel electric dump trucks, the Graco DynaStar pump is a premier Graco
hydraulic pump and is a new industry standard for industrial and vehicle lubrication. The DynaStar supplies lubricant (grease) to the adjustable injectors lubricating the bearings on the Euclid dump truck. The pump uses the existing low pressure hydraulic power source on the Euclid to lubricate itself delivering longer life and increased reliability. The
versatile Graco DynaStar pump system is designed for both injector and progressive divider block systems.

Innovative design
During normal operation of the fleet the Euclid dump trucks are subjected to excessive vibration as a result of their harsh operating environment, this vibration has in the past caused competing pump systems to fail. The Graco DynaStar hydraulic piston pump has an innovative design and is vertically orientated in order to eliminate the design “flaw” observed
in old pump systems; this vertical orientation ensures continuous operation of the pump and the greasing system on the
vehicle.

The Graco DynaStar reservoir is manufactured out of a thick 12 gauge steel and is powder coated ensuring better durability. The DynaStar reservoir has a 50% greater capacity which means less refill cycles and longer machine availability.


“After 1000 hours we are very happy with the overall performance of the Graco Dynastar,
the system has an excellent design; where previous systems have leaked oil the Dynastar
is still clean. The service and backup we have received from Flosolve has been very good, their open door philosophy is great, we really feel like family when we contact them. If the Graco Dynastar continues to perform as expected the Dynastar
will definitely be the hydraulic pump of choice on all our dump trucks.” Buks Swanepoel Exxaro Grootegeluk Coal Mine.

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