Waste no time with new products for efficient waste handlingPublished 22/11, 2019 at 16:32
Waste handling is a crucial aspect of many demolition and construction jobs, especially given the global debate on circularity and climate change. In this special feature, PDi Magazine takes a look at the latest products for the efficient handling of waste.
E, the ‘wet’ processing equipment manufacturer, has announced enhancements to its ‘AggMax’ modular scrubbing and classification system which follows on from the launch of the new AggMax 160. The equipment is engineered to operate in tough conditions to maximise product yield from the most abrasive of feedstocks. The design incorporates five processes on a compact portable chassis: pre-screening, scrubbing/attrition, sizing, contaminants removal and stockpiling. It can process construction, demolition and excavation waste material containing large quantities of organic and other inert physical contaminants into materials suitable for reuse in many applications.
The new AggMax 160 offers a solution tailored for C&D waste operations in the 100-150t/h range. It incorporates ‘Infinity Screen’ technology for greater screening capability and reduced power consumption. The spiral alignment of its paddles reduces the ‘shock’ of intermitting loads on the gearbox, motor and bearings, ensuring consistent material loading. The paddle shape ensures attrition of even the heaviest clay bound feed material. The AggMax 160 features advanced transfer point technology, ‘Infinity’ chutes with premium wear liners and indicators, upgraded ‘Hydro-Flux’ technology with density separation for contaminants, as well as walkways for accessibility that also minimise inspection and maintenance times.
Doppstadt’s new AK 640 K fine shredder
Doppstadt has launched its AK series incorporating the latest engine and exhaust emission technology to meet upcoming EU Stage V emissions legislation. All new machines can be easily recognised by the e5 logo, which stands for standard environmental and climate protection, and include technical innovations such as a drive system that ensures optimised supply of material. Cooling capacity is higher than found with the previous model and the cooler control system is more effective, with the new models also having been optimised for maintenance and wear resistance. Hence the rear belt can be lowered almost completely to the ground and the flail tips are easy to replace thanks to ‘Dopp-Lock’ technology.
The AK 640 K fine shredder is equipped with stainless steel piping for the exhaust system, with the exhaust after treatment system being thermally shielded by integral insulation. MTU's optimised diesel engine offers additional power (20kW/200Nm) and has a rated output of 480kW complying with the Stage V standard for non-road vehicles. It utilises 3D rear baskets developed for processing waste wood, ensuring that mulch produced is a homogeneous end product of high quality. The screen sizes range between 80mm to 300mm enabling the AK 640 K to be adapted for different requirements. The off road version can be used when other shredders aren’t able to find secure footing, with off road capability being required whenever a mobile shredder is deployed in close proximity to areas being cleared. For maximum flexibility, Doppstadt recommends opting for a chassis with considerably more ground clearance.
JCB’s updated ‘Wastemaster’ wheeled loaders
JCB has updated its 457, 437 and 427 Wastemaster wheeled loading shovels to meet the upcoming EU Stage V emissions legislation. The new Stage V Wastemasters’ feature Cummins diesel engines that deliver an increase in engine power and a reduction in emissions and fuel consumption. The 457 has had its power output boosted from 192kW to 210kW, while the 437 goes from 136kW to 145kW and the 427 delivers 123kW. The output of the engines can be reduced thanks to two power modes, activated by the operator from the cab. In addition, the machines are supplied as standard with a five speed ‘Powershift’ transmission in place of the previous four speed unit.
Fuel consumption is cut since the loaders are able to operate both in low power mode and with optimised efficiency through the use of better spaced transmission ratios. The Stage V 457, for example, is up to 10% more fuel efficient than the model it replaces. The machines’ forward speed can be restricted if required, while other safety options include a roof mounted forward facing camera; proximity sensors that alert the operator to any obstructions to the rear of the loader; and seat belt beacons that flash when the operator seat belt is not engaged. All Wastemaster wheeled loaders are offered with a choice of non-traction or semi-solid tyres. Extensive guarding has been fitted, such as underbelly protection for the transmission and driveline, to ensure that machine uptime is maximised.
Keestrack’s K5/K5e scalper series
With a weight of around 30t, Keestrack’s six model K5/K5e series represents the company’s mid-range of scalpers. An extensive choice of screen media for the 5,000mm x 1,500mm double deck screen box (effective screen area 7.5m2 / 6.75 m²) and a hydraulic adjustable screen angle, enable screening of a wide range of materials. All conveyors and components can be hydraulically folded for low bed transportation (transport width 2,600mm), whilst on site, the unit without support legs is quickly operational. These features also come with the full hybrid plug Keestrack K5e which weighs less than 1,000kg more than the diesel hydraulic model. At the heart of the K5e is the on board 105kVA generator, which is connected to the diesel engine and directly supplies all electrics. All hydraulic components are powered by a 45kW unit consisting of an electric motor and load sensing hydraulics. The diesel electric drive concept reduces peak loads and contributes to low fuel consumption in diesel operation (7 - 9l/h). This efficiency can be increased by connecting downstream equipment via the external ‘plug-out’ connection of the K5e.
An added benefit of electrical technology is the reduction in piping and oil volumes of the hydraulics. This results in approximately 40% less piping with considerably reduced wear intensive connections in ‘bending’ areas and a smaller oil volume of 235l when compared to the purely hydraulic version K5 (370l). Connecting the Keestrack K5e to the electric mains, a stand-alone generator or the plug out connection of an upstream crusher (connection values: 125A, 400V, 50 Hz) is simple and once the plant is positioned, the on board diesel engine can be switched off. After attaching the 3 phase plug connection, the control system handles the entire energy management requirements. It is also possible to reposition the screener via the track drive, or use the hydraulic driven conveyor belts, without the need to restart the diesel engine.
Grapple attachments from Kinshofer
Kinshofer’s four styles of grapple attachments, the C, P, D and T-Series, are designed to handle specific types of biomass. Constructed of 500HB steel, the grapples are powered by Kinshofer’s ‘HPXdrive', a low maintenance system, or by heavy duty hydraulic cylinders. Both options ensure components are protected, reducing damage and extending service intervals, with the ‘HPXdrive’ system delivering rotation from two hydraulically driven pistons.
The C-Series includes clamshell buckets recommended for dry, bulk biomass, such as grain, sawdust or wood pellets. They can be used with carrier operating weights up to 80t, as well as a range of different shells that can be refitted onto carriers. The P-Series consist of orange peel grapples available for carriers from 16t to 80t with all models being powered with heavy duty cylinders, the components of which are enclosed to minimise damage and maintenance. The wide opening ranges guarantee penetration and release of materials such as agricultural waste, turf, mulch, twigs, small branches, and waste wood.
The D-Series includes demolition and sorting grapples for carriers with operating weights up to 70t, with a shell design that is ideal for mixed biomass, and for use in loading, sorting, digging and demolition applications. Several models are equipped with an enclosed 360o rotator, making them ideal for underwater applications, with the rotator’s heavy duty construction and low height enabling versatile operation in both demolition and sorting. The T-Series timber grapples are ideal for handling forestry biomass such as logs and large branches, with the closing mechanism and tight grip allowing the grapple to clamp more than one log at a time. The attachments fit excavators with operating weights up to 100t, with many models featuring 360o endless rotation, whilst all models include an integrated non return valve to secure loads if pressure drops.
New material handlers from Liebherr
Liebherr’s new environmentally electric material handler, the ER 954 C ‘High Rise’, weighs in at 97,000kg, is equipped with a 250kW electric motor for continuous working, and provides an alternative to conventional drive machines. No refuelling is required, whilst all maintenance areas are convenient and safe to access, meaning that any servicing can be carried out quickly and efficiently. Also new is the LH 30 M material handler, with an operating weight of 26.5t - 29.1t, high handling capacity and a service oriented layout. It can be used in scrap recycling as well as for handling general and bulk cargo. For environments with heavy dust, the LH 30 M is equipped with a large mesh radiator, automatic reversible fan drive and air pre filter with dust discharge. The LH 30 M includes a 17kW hydraulic alternator system from GTS, which enables attachment of a corresponding magnetic plate. The LH 30 M is available with wheeled or crawler undercarriage.
Other features of the LH 30 include infinitely variable hydraulic cab elevation, as well as a 4 point outrigger, a redefined 4 cylinder in line 140kW Liebherr engine. Liebherr ‘SCR’ technology (Selective Catalytic Reduction) is installed in order to comply with Stage IV requirements, with the system providing high torque. Moreover, load peaks are compensated for meaning that the maximum torque is available for the highest level of material handling performance. The LH 30 M combines electronics with sensitive hydraulics whilst the machine control system adapts the hydraulics to meet requirements of use.