Enerpac split-flow pumps help Mammoet quadruple conveyor lift efficiency at Tom Price project

Mammoet lowers 98 conveyor units efficiently with Enerpac stage lifting sets
Mammoet lowers 98 conveyor units efficiently with Enerpac stage lifting sets

The speed and efficiency of Enerpac ZE split-flow pumps has helped global heavy lift and transport specialist Mammoet to significantly increase its conveyor installation rate at a major materials handling facility at Tom Price in Australia's rugged North West.

Enerpac has delivered two stage lifting sets both consisting of 4 BLS506 cylinders operated by a ZE split flow pump, which Mammoet used to install 98 conveyor sections as part of Rio Tinto's Western Turner Syncline Project, at their open pit mine 20km north-west of Tom Price.

The sets were used to lower conveyors as part of the installation process and expected to lower one per day. With Enerpac's system, Mammoet were able to lower four per day, increasing their efficiency fourfold, despite the rugged conditions of the site.

"We expected to be able to lower one section each day. With Enerpac's stage lift system, we were able to install four per day, which substantially improved our overall installation time. We ended up installing 98 pieces completely problem free," said Mr Arjan Nagelhout, Operations Supervisor for Mammoet Port Hedland.

Mammoet is the world's leading heavy lifting and multimodal transport solutions specialist for the petrochemical industry, civil engineering projects, the power generation sector, offshore and marine projects.

Enerpac has had over a decade of experience with split-flow pumps. Depending on the application, Enerpac has a PP-type split-flow pump as well as its ZE-series with split-flow functionality. For this project, which is part of a mine that produces 6 million tons of ore a year, Mammoet used the ZE split-flow pumps.

"Each pump out of our ZE-, ZA- or ZG-series can also be delivered with split-flow functionality to meet the exact requirements of any application. The biggest advantage is that it gives accurate control in lifting due to equal flow rates," says Enerpac Integrated Solutions Manager for Australia, Mr Richard Verhoeff.

The split-flow pump also has the option of wireless controls for easy and safe operation as the operator does not have to stay with the pump to operate it but can freely move around the object being worked on.

Enerpac ZE pumps, with split-flow functionality
Enerpac ZE pumps, with split-flow functionality

The ZE series of 700 bar electric pumps from Enerpac is engineered to save power and increase reliability by reducing the number of moving parts it incorporates, enhancing flow characteristics and reducing friction.

The high-efficiency design of the ZE series electric pump has higher oil flow and by-pass pressure, runs cooler and requires 18 per cent less current draw than comparable pumps, says Enerpac.

The totally enclosed, fan-cooled electric motor supplies extended life and stands up to harsh industrial environments encountered in Australia and New Zealand, including mining, oil and gas, energy, manufacturing and metal fabrication applications.

By reducing the number of moving parts, improving flow dynamics and decreasing friction, Z-Class pumps will stay on the job longer, require less energy to operate and when needed, have lower service costs.

Which pump should you choose?

With a wide variety of pumps available, it can be tricky to determine which pump to use for which application. Companies that do not have a large range will often direct you to their standard pump, which will not always yield the most efficient and desirable results.

Enerpac is the recognised global leader in high pressure hydraulic tools and equipment, with one of the most extensive ranges of pumps available, from hand pumps to PLC-controlled Synchronous Lifting Systems. Through their global expertise, they have developed a range of pumps that optimises performance and safety under every circumstance.

Mr Verhoeff says that in order to select the pump that best suits your application, you must ask yourself the following questions:

  • How many tools or cylinders will I power with the pump?
  • What 'power' is available at my application?
  • If more than one cylinder will be used, how accurate do I want to lift, lower, position or press?

The accuracy determines whether a manual controlled, split-flow or PLC controlled system is needed. Enerpac recommends the following guidelines when selecting a pump:

  • Low accuracy – Manual controlled valves: depending on person(s) operating
  • Medium accuracy – Split-Flow pump: 3–5% of the stroke of your cylinders
  • High accuracy – PLC (and stroke) controlled: 0.5–3 mm between the leading and lacking cylinder

"This shows that for each application, Enerpac can supply the most ideal solution," says Mr Verhoeff.

Enerpac pumps are designed with international expertise, to meet a huge range of flow rates, valve sizes and tank options, to ensure that the specifications of a unique project are met with precision and the pump performs with the highest level of efficiency.