Germany is the focus for new quarrying technology as equipment manufacturers and buyers gather at MHI's Nieder-Ofleiden basalt quarry for the 2011 edition of Steinexpo
While MHI is working to maintain aggregate production, it is also preparing its Nieder-Ofleiden quarry for the arrival of thousands of visitors for 8th running of
Not only will Steinexpo allow machine buyers to see the new equipment 'in the iron', the showground will also enable them to see the machines in action in the demonstration area. But even if you can't get to the event, you can catch up on the developments with Bauforum24 TV's reporting directly from the fairgrounds every day with news, reviews and product information.
Show organiser Geoplan has said that it hopes to build on the 2008 event, which attracted over 43,000 visitors and more than 250 exhibitors.
Drill and blast
Load and haul
One of the largest launches in the loading category will be
The K Series has been upgraded with Stage IIIB engines and Cat has taken the opportunity to carry out a number of other improvements. These include a new operator station within a ROPS cab and new stepped access with a greater inclination angle than the H Series, and wider opening doors provide easy access. The operator station also features new viscous cab mounts that reduce noise and vibration.
The K Series machines come as standard with a new low-effort electro-hydraulic joystick steering system. An optional electro-hydraulic steering wheel system will also be available
In addition to the higher power offered by the new engines, other improvements include a new torque converter on the 972K which adds 10% more rimpull to boost performance and an optional lock-up torque converter on the 980K. The 980K also features load sensing hydraulics to ensure performance matches demand without impacting on fuel efficiency
According to Doosan, the DX520LC excavator is designed with quarrying in mind with a full power mode to help provide extra power for digging out shot blasted rock and loading it into the crusher or screen. The machine also features a boom and arm flow regeneration system to make efficient use of the hydraulic power available and stores energy created by oil being pressurised as the boom and arm are lowered and makes it available again when they are raised
The DL500 wheeled loader offers bucket capacities of up to 5.1m3 and has a static tipping load with bucket of 23tonnes. According to Doosan, the breakout force is among the highest in its category at 268kN.
The 38tonne payload MT41 is the largest in Doosan's four model range and features wet multiple disc brakes and permanent six-wheel drive.
The company has said that the machine's free-swinging rear tandem bogie and the special articulation system offer excellent driving performance. The articulation hinge is positioned behind the turning.
ring to ensure equal weight distribution, even during a maximum turning radius, ensuring maximum contact between the tyres and the road.
"Instead of moving a tracked conveyor - and the crushing and screening train - every three to four days, the radial function allows it to be used for up to 15 days," explained Telestack managing director Malachy Gribben. "This not only saves time but is also safer. Like the standard model the height of the conveyor on the radial version can be raised as the stockpile builds so the material doesn't fall so far to help prevent dust and segregation of the product." The company will also be promoting its new TU 515R radial truck unloader, which Gribben said helps to avoid double handling of material and can be used to load barges or rail wagons.
Edge will be exhibiting at Steinexpo for the first time and will demonstrate its new FS feeder conveyor, which features a double deck vibrating screen. The machine can be specified as either a wheeled or track-mounted unit and be used to create a stockpile or feed material into a crusher or screen.
Crush and screen
"We tried to build a 6foot wide deck but it was too wide for transport so we have built the screen as wide as possible," said Terex Finlay technical sales support manager Paul Lilley. "The new model will fill the gap between the 683 and the 694+. We will also be developing a two deck version." Finlay will also display its new twin deck 863 screen, which features 9 by 4foot inclined screens that can be hydraulically adjusted from 14 to 18 degrees to suit the application. The decks can be fitted with a variety of screening media and in ideal conditions the machine can process up to 250tonnes per hour. The hydraulically controlled conveyors can be folded for transport and the angle of the oversize conveyor can also be adjusted.
DSB Innocrush will present the Innocrush 30, which the company claims offers a cost effective solution with remote control, side discharge conveyor and dust suppression system fitted as standard. The impact crusher offers a 300tonne per hour capacity and has recently been updated with a longer discharge conveyor.
According to Rockster, the new R700S is equipped with features normally seen only on larger plants, which make it capable of dealing with difficult materials and virgin stone applications. The crusher is also available with an optional screener.