The latest in crushing and screening attachments and buckets

Published 24/2 at 15:50

Every year, PDi Magazine takes a look at what’s new in the crushing and screening attachment sector. This year sees new releases of vibrating screening buckets, shaft screeners and a whole lot more. Here are the latest products out this year.

BPH and Prodem
BPH Attachments has expanded its Prodem hydraulic attachments portfolio in the UK with the addition of a new crusher bucket. The Prodem PCB crusher bucket is designed to efficiently crush and convert waste material including brick, concrete, rock and even wood, into reusable hardcore or infill, directly on site. According to BPH Attachments, industry users have estimated that the attachment, which features a patented auto-reverse crushing drum, can increase productivity to anything between 34t to 45t/hour by reducing operator input and increasing utilisation of site machinery. It also has intuitive jaw adjustment, high displacement radial piston hydraulic motors, wear resistant teeth, and forward facing or reverse facing loading.

The PCB crusher can be utilised to reduce the volume of a variety of materials on construction or demolition sites, recycling, excavations, pipelines, road works and quarries. As the crusher bucket can be fitted to excavators already working on site, it negates the need for additional machinery and saving costs by cutting down on transport requirements, as materials can either be reused on site or the bulk will be reduced. The crusher bucket is suitable for 8t to 55t excavators including skidsteer and backhoe loaders. It crushes up to 70m3/h (PCB 400) and has a loading capacity of 0.4-1.8m3 and required oil flow from 80-550l/min. Prodem Attachments are imported to the UK exclusively by BPH Attachments.

Epiroc introduces bucket screeners
Epiroc has widened its portfolio of hydraulic attachment tools with a range of bucket screeners. The Epiroc bucket screeners BS 1600 and BS 2200 combine modern design and sturdy construction to bring customers in the recycling and rock excavation business a complete solution. Hydraulic power is transmitted to the bucket via a timing belt that doesn’t require tensioning. This reliable transmission solution delivers optimum torque and reduces maintenance time. Furthermore, the bucket features a polygonal design with 12 sides rather than a smooth rounded surface. According to Epiroc, this shape enables the material to be shaken in an effective way to speed up the screening process. The material then passes through hexagonal openings in the mesh becoming high quality aggregates straight on the job site. Depending on needs and requirements, customers can choose from buckets with six different mesh size openings and is available in two sizes for 18t to 38t carriers.

Updated Grey CB crusher bucket range from Green Attachments
The Grey CB is an updated range for downsizing demolition debris, which allows the user to crush material on site. The crusher buckets can be used in tough working conditions, for example soft rock quarries and pits. The buckets are produced in four models for 10t to50t excavators with the structure being made of wear resistant steel for minimum wear. Crusher bucket applications include natural rock crushing, demolition debris handling and processing, as well as asphalt crushing, to name but a few.

The crusher works through a strong piston motor driving the rotation of a big wheel with power being transmitted to the crusher plates through a durable belt. The eccentric movements of the jaws are designed for effective crushing of the material. Furthermore, the buckets feature bolt mounted wear plates for easy maintenance, central lubrication and grain size adjustment in order to make the bucket a suitable option for a variety of applications.

HVB Series vibrating screening buckets from Hydraram
After 27 years in the hydraulic attachment market, Hydraram has added vibrating screening buckets to its range of tools. According to Hydraram, the vibrating screening bucket HVB series is characterised by its ease of use and high productivity even on mixed soils. It is available in four models for 13t to58t excavators, weighing 1,620 to 4,160kg. It is suitable for sorting through large amounts of soil in recycling, construction and demolition sectors, being designed to efficiently separate anything from soil to rocks.

The screening buckets come with interchangeable grid kits which, powered by a piston motor, quickly vibrate and let through all fines, with everything that does not pass through the alternated grid motion system staying inside the bucket allowing the user to dispose of all larger pieces. The centralised greasing system makes the maintenance process easier and prolongs the lifespan of the bucket. The bucket can be easily attached as it works on the hydraulic lines of the excavator. The bucket’s design is compatible with, and can be mounted on all existing excavator makes and models.

New generation of shaft screeners from MB Crusher
MB Crusher’s new MB-HDS shaft screener series features an ability to adapt to different types of work and materials. The screener selects and crushes excavation and demolition materials, asphalt, coal, organic materials, wood, bark and light plastics. With the MB-HDS screening bucket the rotating shafts can be changed on site by one person whilst its patented system keeps the rotating supports in place. The rotors can be removed and repositioned, while the angular alignment is kept in place.

The screening buckets are available in four models with shafts suitable for different material selection requirements. They can be installed on excavators, diggers, mini diggers and loaders (5t to 35t) for work on, construction sites, areas containing large pipelines, etc. The rotary shafts can be changed anywhere and also feature a centralised greasing system. All maintenance tools are located in a compartment, whilst an engineered automated shock absorbing hydraulic system reduces discharge so that the engine, transmission components and the machine boom do not suffer damage.

One of the screeners was used on the Wahle-Mecklar project in Germany, which concerns alternative technologies for underground high voltage cables. The Dutch-German electricity transmission system operator TSCNET TenneT TSO demonstrated how to bury high voltage cables using green technology with a special ram driving the empty ducts into the ground and the shaft screener covering it. The unit was chosen as it allows the user to change shafts based on material directly on site.

Cutter heads and screening buckets from Simex
Simex has launched the new TFC 400 and TFC 600 continuous cutting double drum cutter heads, which are part of the large family of Simex cutter heads including 11 models of the TF, TFC and TFV series. Continuing cutting cutter heads offer the advantage of evenly milling material that needs to be profiled or excavated without leaving breaks between the two drums, or requiring the lateral movement of the excavator boom in order to mill residual surfaces.

The TFC 400 and TFC 600 cutter heads are designed for 6t–10t and 9t–12t excavators respectively. The TFC 400, with its 18.5kN cutting force, is an attachment that can excavate small trenches for utilities installation, profile concrete surfaces and remove tree trunks in agricultural or forestry applications. Its relatively small size, combined with the use of ultra-radius excavators, provides a productive attachment even in tight spaces. The TFC 600 is the more powerful of the two and is designed to take on heavier applications and with a cutting force of 24.5kN, it can be used to mill deteriorated layers of concrete structures, such as side walls and roofs of tunnels, etc. The TFC 600 is suitable for profiling cut off walls and (thanks to its size and that of the prime mover it is coupled with) it can be used in urban settings to perform trenching for utilities installation, such as branches of sewer systems or aqueducts.

Additionally, Simex has introduced its new VSE series, which includes four buckets (VSE 10, VSE 20, VSE 30 and VSE 40) for 8t–45t excavators with load capacities ranging from 0.40m3 to 1.80m3. All screening buckets feature easy loading, simple use and high productivity, and in addition, the Simex patent allows rapid size adjustment of the material to be screened in a few seconds via a control in the operator cab.

All Simex screening buckets enable output size adjustment even when emptying material loaded into the same bucket, without long downtimes or complicated mechanical procedures. The VSE range features rhomboid shaped elements with disks in varying diameters that make up the shafts. This specific shape of the tools produces an intense ‘whirling’ of the material. Additional tools offered by Simex also make this attachment suitable for non-demolition related applications, such as landscaping and waste treatment.

Simex crushers have been used to reduce the volume of asphalt slabs up to 100mm thick, specifically the CB and CBE crusher buckets, which can act as an alternative to mobile crushers. The crushers are able to perform the job thanks to their power, but often reduce the asphalt to a size too large for it to undergo any recycling. With new disks developed precisely for this application, the VSE screening buckets can reduce the material to a size appropriate for reuse. The solution also makes it possible to screen asphalt that is already an ideal size but, having accumulated for a long time, has recompacted due to compression or temperature.

The VSE 20 screening bucket was used for soil screening as part of a major renovation project in Trivolzio, Italy. The contractor Ripristina was renovating a farmstead in order to turn it into a residential and commercial complex. The VSE 20 was used for the screening of topsoil containing natural aggregate and demolition waste, a necessary procedure in order to create green areas in internal spaces. Like other attachments in the range, the VSE 20 has a patented mechanism making it possible to hydraulically screen the material in seconds. This includes an electric control situated in the cabin and once the rotation movement of the screening shafts is stopped, the operator can adjust the distance of the two shafts (with maximum travel of 30mm) in order to obtain an output size of 15mm–45mm. The screening bucket also has a 0.70m3 capacity and a screening area of 0.80m2. The VSE 20 is designed to be mounted on 12t–18t excavators, and weighs 1.3t.

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