MATERIALS washing specialist CDE Global will launch a range of new machines including its enhanced M2500 mobile washing plant, AggMax portable logwasher, and EvoWash sand washing plant when it participates at bauma next month.

Representatives from the CDE mining division will be on hand to present details of the new mining specifications for the company’s range of mineral processing equipment.

The M2500 was launched on the global market at bauma 2010 and has since been installed in 20 countries throughout Europe, the Middle East, Africa, Australasia and Latin America. Among the latest clients to acquire an M2500 is Associated Construction Company (Asco) of Kuwait, which has purchased the mobile sand washing plant to improve the quality of washed sand produced from an existing sand processing plant at a site in Kuwait. This represents the first M2500 to be supplied to the Gulf region and the purchase was agreed following a visit to see a similar plant in operation in Beirut, Lebanon, by Khaled Nasr, Asco’s deputy manager, Sand Washing and Infra Works.

With existing applications across a wide range of materials including sand and gravel, crushed rock, scalpings, construction and demolition waste recycling, silica sands and iron ore processing, the company has announced a number of new developments, which will be introduced at bauma.

“The new M2500 features we will be presenting at bauma 2013 include enhancements to the configuration of the integrated ProGrade screen, which ensure maximum transfer of energy to the material being processed while isolating the supporting chassis from vibration,” says Kevin Vallelly, CDE research and development manager. “In addition, we have made a number of modifications designed to facilitate improved maintenance access which maximises plant production.”

Additional improvements include a new polyurethane protection system for the ProGrade screen cassettes and enhancements to the integrated AtroFeed system for delivery of the sand fraction to the onboard EvoWash.

AggMax
Sitting alongside the M2500 on the CDE stand will be the AggMax 83 portable logwasher. This will include a RotoMax RX80 logwasher, triple-deck Prograde sizing screen and horizontal dewatering integrated on a single chassis. The AggMax has found many applications ranging from the washing of limestone conglomerate material in Scotland and Austria, to construction and demolition waste recycling in England, iron ore processing in India and sand and gravel washing in Germany.

“The AggMax has enjoyed significant global success in recent years as the requirement to process more difficult materials has become more frequent,” says Glenn Sloan, senior R&D (research and development) engineer and lead designer on the AggMax. “The enhancements we are presenting at bauma will focus on further increasing performance and durability while making access and maintenance as easy as possible.”

These developments include the introduction of a mechanism allowing adjustment of the inclination of the RotoMax logwasher to allow for variations in feed material. This will allow for material retention time within the logwasher to be increased or decreased depending on how much attrition the material requires to be efficiently cleaned. In addition, a new walkway configuration will be presented which not only improves access for maintenance, but is also more compact for transport and quicker to assemble on site.

Evowash
The next-generation EvoWash, which is being launched following an extensive research and development programme, is a compact sand washing system integrating a dewatering screen, sump and hydrocyclone configuration which is customised to the specific requirements of the materials washing project on which it is specified.

“2013 represents a significant year for the EvoWash as it is 21 years since the system was first introduced. Our 2013 EvoWash will include some significant design changes which will further enhance its position as the premium compact sand washing plant on the global market,” says Vallelly.

Central to the development of the new Evowash is a new dewatering screen design that will deliver maximum dewatering of the sand product by maximising the transmission of energy into the material while minimising transfer of vibration to the supporting structure. The new screen is 30 per cent lighter than the previous dewatering screen and is galvanised as standard.

The new fully bolted dewatering screen design also introduces the new Vibro-Sync motor assembly mounted in a horizontal arrangement above the screen, which ensures a constant linear motion is maintained in the driving plane. Commenting on this, Vallelly says: “We spent a lot of time in optimising the new motor arrangement which will deliver increased dewatering performance and also reduce the power requirement by almost 40 per cent.”

Other developments aimed at maximising plant production include the introduction of new polyurethane liners within the hydrocyclone feed box, which can be replaced quickly and easily, and the introduction of a new CDE abrasion-resistant hose to control pump suction and discharge. A further improvement in maintenance access is facilitated by the mounting of the integrated centrifugal slurry pump on a turntable fixed to the rear of the Evowash chassis.

The new Evowash will include an option for an integrated 10-m stockpile conveyor, which helps maximise production efficiency. “This option introduces our tried-and-tested-integrated conveyor system from the M2500 mobile washing plant and increases the flexibility of the Evowash to allow us to meet the specific requirements of our customers,” explains Neil Mullan, senior design engineer at CDE.

CDE can be visited at Stand F10/N1022 in Open Area North at bauma.