fully mobile li ne crusher

jaw crusher mobile mini line best stone limestone primary stationary crusher line

Dewo machinery can provides complete set of crushing and screening line, including Hydraulic Cone Crusher, Jaw Crusher, Impact Crusher, Vertical Shaft Impact Crusher (Sand Making Machine), fixed and movable rock crushing line, but also provides turnkey project for cement production line, ore beneficiation production line and drying production line. Dewo Machinery can provide high quality products, as well as customized optimized technical proposal and one station after- sales service.

LT 4825. The LT 4825 is a compact, mobile jaw crusher with hydraulic output adjustment 3/4 to 3-1/8. Fully remote-controlled and easy to transport at 7,500 lbs., it can be quickly set up by a single operator to process 5-30 TPH.

DW mobile crusher plant. Stationary crusher plant Dewo machinery can provides Complete Stationary crusher plant, such as Jaw Crusher-Screening Series, Cone-Screening Series, Impact-Screen Series, hammer-screening series and Sand Making line. Sand making plant; Stone crusher plant

The SEPOR Mini-Jaw Crusher is suitable for crushing small quantities of rock and other friable material, ranging in hardness from hard quartz to relatively soft clay stone. It is available with a variety of wear surfaces.

Mobile Jaw Crusher, Mobile Mini Jaw Crusher, Portable Jaw Crusher manufacturer / supplier in China, offering Mobile Mini Jaw Crusher Portable Jaw Crusher for Sale, [Gold Mining Grinding Machine] GM 0933 2 Tph Stone Grinding Machine Mining Ball Mill Grinding Machine for Gold, Mining Equipment Grinding Machine Wet and Dry Ball Mill for 1-2 Tph Cement, Rock Gold Grinding and so on.

China Mobile Jaw Crusher manufacturers - Select 2020 high quality Mobile Jaw Crusher products in best price from certified Chinese Crusher manufacturers, Rock Crusher suppliers, wholesalers and factory on Made-in-China.com

broken buildings, broken mines, industrial milling, mine crushers, screening, sand making and industrial milling machinery and equipment manufacturing

K Wheel-type Mobile Crusher is, also known as mobile crushing station, developed based on years of independent research and manufacturing experience of mobile crushers. In combination with user demands, K Wheel-type Mobile crusher is optimized and innovated on structural design, equipment configuration and combined application, so as to realize more flexible combinations, greatly widening the application fields and truly realizing the approaching treatment of materials.

Flexible, able to put into production quickly, eco-friendly Input Size: 0-930mm (for coarse crushing) Capacity: 0-650TPH (for coarse crushing) Material: Granite, marble, basalt, limestone, quartz, pebble, copper ore, iron ore

l 72 Machine Models Cover Various Production Demands K Mobile Crushers own 7 series and 72 machine models, and fully covers various production demands for coarse crushing, intermediate fine crushing, fine crushing, shaping, screening and sand washing. Customer can choose independent operation and combination operation like three-combination, and four-combination, etc.; compared with the other mobile crushers and screens in domestic and foreign markets, this series has more machine types and wider coverage.

l Quick Entrance To Operation; Flexibility Saving More Money Compared with a fixed production line, the K Mobile Crusher has a shorter engineering period and rapider transition, which not only reduces the investment risk and opportunity cost of the investors, but also avoids the demolition and construction after the end of project, making it more economical and environmental. In addition, the mobile crusher has excellent value-holding capacity, so that the investor can rapidly invest in a new project, or sell the mobile crusher to get money, thus reducing the investment cost.

l General Structure Making Further Upgrading Possible SBM's K Mobile Crusher takes the concept of modularization. The general structural layout can realize the direct replacement of main parts without replacing the body, so as to satisfy the crushing and screening demands at different stages; if the user needs to expand the production capacity, replacing the main parts can accomplish the upgrading of mobile crusher and save reinvestment cost of the body. In addition, the wheel-type mobile crusher can move in remote and rugged areas, greatly reducing the road construction cost in earlier stage.

l Hydraulic Centralized Control Makes Operation & Maintenance Simpler All actions are controlled by intensified hydraulic system so that the operator can simply and rapidly set the operating actions of the mobile crusher; in consideration that the widely used hydraulic control devices will require certain machine maintenance, SBM adopted centralized lubrication mode, and the operator can rapidly complete the maintenance on the road directly. Therefore, the operation and maintenance management will greatly save the labor cost.

l Digitalized Processing, Higher Precision There are tens of lines of numerical controlling machine tools. Operations such as steel plates cutting, bending, planing, milling and paint spraying are all controlled numerically. The machining precision is high, especially for the core parts.

l Sufficient Supply Of Spare Parts, Worry-Free Operation SBM, whose businesses cover production and sales, takes responsibility for every machine produced by ourselves. We can offer customers technical services about products and original spare parts to ensure the worry-free operation.

A K Wheel-type Mobile Crusher is composed of the frame assembly, automobile components, hosts & accessory equipment, power system and hydraulic electronic control system. When moving, the mobile crusher is hooked on a trailer and then move by virtue of its wheels. During installation, with the external power, the hydraulic cylinder can get controlled by the electronic control system to finish equipment installation. During operation, with external power, motors of hosts and accessories work to drive the equipment to work. Usually, materials are sent from the hopper or by belt conveyors to the hosts for crushing and screening. After being processed, finished products are transported by belt conveyors, too.

Note: 1.The bulk specific weight is calculated by 1.6t/m. When the width of the feeding port is above 600mm, it is a large-scale machine while when the width ranges from 300 to 600mm, it is a medium-sized machine. 2.Product pictures and parameters about models, data, performances and specifications on this website are for reference only. There is a chance that SBM may make changes on above-mentioned information. For specific messages, please refer to the real objects and user manuals. Without special instructions, SBM keeps the right to explain all data involved in this website.

mesda group homepage- the best mobile crusher (mesda)

Mesda is a professional manufacturer and supplier of mobile crusher and screener with leading technology in Nanning, Guangxi, China. Offering a wide range of crawler mounted mobile crushing and screening equipment for mining, highway construction, tunnel construction, raw material processing, building material recycling and so on. Ex. mobile jaw crusher, mobile cone crusher, mobile impact crusher, mobile hammer crusher, mobile screener, mobile conveyor, DTH surface drilling rig, excavator, wheel loader, etc.

Since the opening of the 16th China-ASEAN Expo on September 21, the atmosphere has been rising day by day. In this years exhibition, MESDA Company has built a super large booth of about 1,000 square meters in exhibition area. MESDA brought 11 sets of equipment to the China-ASEAN Expo, covering mining, construction aggregate and solid waste recovery,etc.

Mesda is the advocator and promoter of crawler mounted mobile crusher and screener. A mobile crushing and screening system which is suitable for national conditions has been developed independently. Those machines are not only applied in domestic large stone fields, but also exported to foreign countries through various channels.

rm 90go! mobile crusher | rubble master

Besides RUBBLE MASTER's unmatched mobility the RM 90GO! mobile crusher is ideal for on-site crushing because of its small footprint, low noise emissions and it's unique ability to track & crush simultaneously. This unique feature eliminates the need of an additional wheel loader or stacking conveyor on-site.

denp mobile cone crusher / cone crusher / mobile jaw crusher line 2020 top brand portable mobile cone crusher plant

Dewo machinery can provides complete set of crushing and screening line, including Hydraulic Cone Crusher, Jaw Crusher, Impact Crusher, Vertical Shaft Impact Crusher (Sand Making Machine), fixed and movable rock crushing line, but also provides turnkey project for cement production line, ore beneficiation production line and drying production line. Dewo Machinery can provide high quality products, as well as customized optimized technical proposal and one station after- sales service.

Mobile Stone Sand Making Crusher Machine Line With Jaw Crusher Cone Crusher Screener , Find Complete Details about Mobile Stone Sand Making Crusher Machine Line With Jaw Crusher Cone Crusher Screener,Mobile Jaw Crusher Plant,Small Stone Crusher,Stone Crusher Plant from Crusher Supplier or Manufacturer-Hebei Shantai Machinery Equipment Co., Ltd.Price Range: $5,000 - $10,000MCO 11i PRO | Mobile cone crushers | Kleemannhttps://www.wirtgen-group.com/ocs/en-us/kleemann/mco-11i-pro-147-pThe MOBICONE MCO 11i PRO mobile cone crusher stands out thanks to its extremely robust design and impressive performance. As an option, the plant can be operated via an external power source and impresses with its low-maintenance operation.

Tire Type Mobile Crusher. Crawler Type Mobile Crusher. JCE Jaw Crusher. CS Series Cone Crusher. Jaw Crusher. Impact Crusher. Cone Crusher. Hammer Crusher. Sand Making Series. VSI5X Sand Making Machine. VSI Sand Making Machine. PCL Sand Making Machine. Sand Washing Machine. Vibrating Feeder.

Crushing PrincipleApplication FieldAdvantages and DisadvantagesCone rock crusher and Jaw stone crusher are a laminated crushing principle. Which is commonly known as the impact crushing principle The nature of crushing doesnt change too much, although the actuator of crushing use of different structure. The cone crusher adopts the extrusion process between the grinding wall and the crushing wall. Jaw crusher adopts the extrusion process between the moving jaw plate and the static jaw pSee more on jxscmine.comCompact Concrete Crushers For Sale | Crusher Mills, Cone ...https://www.crusher-mills.com/en/crushing/compact...compact mobile crushers for sale-Mining Equipment For Sale. Small crusher,rock crusher for sale,small stone crusher. Small rock crusher for sale, small jaw crusher for sale, small concrete need small rock crusher, liming

Mobile cone crushing plant is an efficient stone crushing unit that consists of cone crusher, vibrating screen and belt conveyor. It is ideal for secondary and tertiary crushing of various rocks. The mobile cone crusher is versatile and very easy to service. Mobile Cone Crushing Plant

The cone crusher is a kind of stone crusher machine applied for metallurgy, building, road construction, chemical engineering, etc. It is suitable for medium and fine crushing with the features of high crushing ratio, high efficiency, low energy consumption and uniform particle size.

Mobile, Portable and Modular Crushers. Frontline traveled the globe in search of the best crushing manufacturers for the Canadian market and came back with world-class leading brands: Keestrack, Cedarapids and GIPO. Our selection of impact crushers, jaw crushers, and cone crushers beat out competitors portable crushing with the most advanced ...

Crushing rates will vary with the hardness and size distribution of the feed, however a capacity range is provided below for the M/B Jaw Crushers. Crushers are available for 230-460 V/3 Ph/60 Hz, 380 V/3 Ph/50 Hz or 575 V/3 Ph/60 Hz operation.

Great Wall Heavy Industry is a professional manufacturer of stone crushers in China, we supply various stone crusher, such as cone crusher,mobile crusher plant,jaw crusher,hammer crusher,impact crusher,double roller crusher,VSI/PCL sand crusher,small type crusher and so on.

iron ore crusher price, crushing machine for iron ore beneficiation

Iron ore beneficiation begins with the milling of extracted ore in preparation for further operations to recoveriron values. Milling operations are designed to produce uniform size particles by crushing, grinding,and wet or dry classification. The capital investment and operation costs of milling equipment are high.

Crushing is a multistage process and may use dry iron ore feed. Typically, primary crushing andscreening take place at the mine site. Primary crushing is accomplished by using jaw crusher or gyratorycrushers. Primary crushing yields chunks of ore ranging in size from 6 to 10 inches. Oversize material is passed through additional secondary crushers and classifiers to achieve the desired particlesize.

In iron ore beneficiation operation, the raw iron ore materials will be first reduced to small particle size. It may require crushing the material tomaximize the production of minus 2mm. According to SBMs experience in crushing technology, we recommended the installation of acone crusher to reduce the minus 100mm pebblesand a VSI crusher machine to fine crush the cone crusherproduct.

The iron ore crushers with low price are also used in the industrial minerals, mining, recycling and general quarrying industries. A widerange of materials are processed through SBM iron crushers worldwide. SBM experts can customize crushing solution in iron ore beneficiation according to your requirements. Here are some popular iron ore crusher machine types. Please contact us for more information.

According to different final products applications, varioustypes of crusher equipment are required, such as jaw crusher for primary crushing, impact crusher and hammer crusher for secondary crushing, cone crusher for secondary and tertiary crushing. Iron ore crusher prices are different according to crusher types and production capacities.

The VSI crusher for iron ore beneficiation uses a unique rock-on-rockcrushing action whereby the feed materialgrinds and impacts against itself, minimizingwear costs and maintenance down-time. Thisis especially important in applications such asiron ore processing where the feed material istypically hard and abrasive and wear costs arepotentially very high.

Jaw Crusher Jaw crusher is available with stationary, mobile and portable applications. The jaw crushers combine a high reduction ratio and increased capacity with any feed materials: from extra hard rock to recycled materials. This is achieved through several unique features such as higher crushing speed, optimized kinematics, a longer stroke and easy adjustment.

Impact Crusher Impact crushers are based upon several decades of experience with the impact method. We offer a complete range of impact crushers for stationary, semi-mobile fully mobile applications in both primary and secondary crushing.

Cone Crusher Cone crusher is a stationary crusher. These crushers are hydraulic pressure crushers designed to crush a high ratio for high productivity. Cone crushers are ideal for secondary and fine crushing.

sbm launches new 40-tonne-class jawmax crushers | industrial vehicle technology international

Austrian-based SBM Mineral Processing has officially launched its new Jawmax 400/450 crushers and the newly introduced Remax 450 impact crusher, expanding its line-up of track-mounted mobile crushers to ten standard models with operating weights between 30 tonnes and 60 tonnes.

A common feature of both new 450 machines is a high-performance pre-screening unit that helps reduce crusher wear whilst improving the crushing result in terms of quality and output. This new circular-motion, double-deck vibratory pre-screen is directly connected to the vibrating chute in the feed hopper, whilst a triple flap on the screen run allows two fractions to be discharged in full or in part as fines or added to the end product as crusher bypass.

Compared with the double-deck grizzly feeders on the SBMs 400 models, the pre-screen increases hourly capacity by around 50 tonnes to a maximum of 450 tonnes/h, which is said to position both the 49.2-tonne Remax 450, with its 1,300mm impact crusher and optional secondary screen, and the compact Jawmax 450 at the top of their respective performance classes.

Like all SBM mobile crushers, both models have a hybrid diesel-electric/fully electric drive system with optional mains connection. The drive unit consists of an EU Stage V-compliant 6.7-litre Cummins diesel (170kW at 1,500 rev/min) and a 200kVa on-board generator that feeds all electrical drives (feeders, screens, conveyor belts etc) as well as the electrically operated hydraulics for the lifting cylinders and tracks.

According to SBM, theJawmax450 with its independent pre-screen, in particular, sets new standards in terms of economy and practical applicability. A 110kW electric motor drives, via a V-belt, the new STE 110-70 jaw crusher, which was specially developed by SBM for mobile applications.

As one of the largest crushers in the 40-tonne size class, the machines 14.35-tonne jaw crusher unit features an inlet opening of 1,100mm x 700mm, accepts a nominal feed size of 0700 mm, a maximum lump size of 1,000mm x 600mm x 600mm and has the ability to handle rock strengths up to 400MPa, thereby permitting a wide range of applications.

With its 34mm stroke, fully automatically monitored gap adjustment of 40160mm which can be adjusted under load, and optional overload protection, the JAWMAX 450 is designed to ensure continuously high production output of high-quality final aggregates.

The machines hybrid diesel-electric/fully electric system consumes diesel at 1520 litres/h in normal operation and well below 30 litres/h at peak load. The optional connection to mains power further reduces direct energy costs by up to 60%, depending on the tariff, compared with other diesel-hydraulic mobile plants of similar performance and by round 30% compared with use of the machines own onboard diesel engine.

TheJawmax450 has also been optimised for transportability, with a transport weight of 39.2 tonnes and transport dimensions 14.71m (length) x 2.88m (width) x 3.60m (height). After unloading from a low-bed truck or uncoupling the optional three-axle dolly, the hopper walls, overband magnet and high and wide-reaching discharge conveyors are positioned hydraulically without tools, making the plant fully operational in just over five minutes.

The machine operator is fully supported by the standard multi-functional remote-control and set-up routines of the intelligent SBM Crush Control system, which also monitors and controls the fully automatic crushing operation in line with pre-set parameters. In addition, a web-based app allows remote access to all important operating and production data.

Saul Wordsworth is deputy editor of the iVT brand - which includes digital and print editions of a quarterly magazine and Off-Highway Annual, as well as ivtinternational.com. He is a keen cyclist and lives in north London.

mobile crusher, wheel-type mobile crusher plant-sbm industrial technology group

K series wheel mobile crusher is developed based on years of independent research and manufacturing experience of mobile crushers. In combination with user demands, K series mobile crusher is optimized and innovated on structural design, equipment configuration and combined application, so as to realize more flexible combinations, greatly widening the application fields and truly realizing the approaching treatment of materials.

72 Machine Models Cover Various Production Demands K series mobile crusher owns 7 series and 72 machine models, and fully covers various production demands for coarse crushing, intermediate fine crushing, fine crushing, shaping, screening and sand washing. Customer can choose independent operation and combination operation like three-combination, and four-combination, etc.; compared with the other mobile crushers and screens in domestic and foreign markets, this series has more machine types and wider coverage. Quick Entrance to Operation; Flexibility Saving More Money Compared with fixed production line, K series mobile crushing plant has a shorter engineering period and rapider transition, which not only reduces the investment risk and opportunity cost of the investors, but also avoids the demolition and construction after the end of project, making it more economical and environmental. In addition, the machine has excellent value-holding capacity, so that the investor can rapidly invest in a new project, or sell the machine to get money, thus reducing the investment cost. General Structure Making Further Upgrading Possible SBM's K series mobile crusher takes the concept of modularization. The general structural layout can realize the direct replacement of main parts without replacing the body, so as to satisfy the crushing and screening demands at different stages; if the user needs to expand the production capacity, replacing the main parts can accomplish the upgrading of mobile crusher and save reinvestment cost of the body. In addition, the wheel-type mobile crusher can move in remote and rugged areas, greatly reducing the road construction cost in earlier stage. Hydraulic Centralized Control Makes Operation & Maintenance Simpler All actions are controlled by intensified hydraulic system so that the operator can simply and rapidly set the operating actions of the mobile crusher; in consideration that the widely used hydraulic control devices will require certain machine maintenance, SBM adopted centralized lubrication mode, and the operator can rapidly complete the maintenance on the road directly. Therefore, the operation and maintenance management will greatly save the labor cost.

K series mobile crusher owns 7 series and 72 machine models, and fully covers various production demands for coarse crushing, intermediate fine crushing, fine crushing, shaping, screening and sand washing. Customer can choose independent operation and combination operation like three-combination, and four-combination, etc.; compared with the other mobile crushers and screens in domestic and foreign markets, this series has more machine types and wider coverage.

Compared with fixed production line, K series mobile crushing plant has a shorter engineering period and rapider transition, which not only reduces the investment risk and opportunity cost of the investors, but also avoids the demolition and construction after the end of project, making it more economical and environmental. In addition, the machine has excellent value-holding capacity, so that the investor can rapidly invest in a new project, or sell the machine to get money, thus reducing the investment cost.

SBM's K series mobile crusher takes the concept of modularization. The general structural layout can realize the direct replacement of main parts without replacing the body, so as to satisfy the crushing and screening demands at different stages; if the user needs to expand the production capacity, replacing the main parts can accomplish the upgrading of mobile crusher and save reinvestment cost of the body. In addition, the wheel-type mobile crusher can move in remote and rugged areas, greatly reducing the road construction cost in earlier stage.

All actions are controlled by intensified hydraulic system so that the operator can simply and rapidly set the operating actions of the mobile crusher; in consideration that the widely used hydraulic control devices will require certain machine maintenance, SBM adopted centralized lubrication mode, and the operator can rapidly complete the maintenance on the road directly. Therefore, the operation and maintenance management will greatly save the labor cost.

All product information including pictures, types, data, performance, specifications on this website is for your reference only. Adjustment of above-mentioned contents may take place. You can refer to the real products and product manuals for some specific messages. Except the special explanation, data interpretation right involved in this website is owned by SBM.

choosing a mobile impact crusher for recycling what you need to know

RPN connected with product experts and Canadian distributors representing eight of the leading global manufacturers of mobile impact crushers to gain a little more insight into the benefits, features and evolution of this integral tool of today's C&D, concrete and asphalt recycling industries.

Mobile impact crushers, also known as the tracked impact crusher or recycling impactor, are recognizable mainly due to the fact that these crushers are mounted on a tracked undercarriage. Overall range of capacity for mobile impact crushers is roughly about 100 to 500 tons per hour.

Today's mobile impact crushers are especially ideal for smaller-scale recycling operations, for on-site recycling of demolition waste, and for tight-space urban and roadside applications. These units feature a diesel or electric drive system, are transportable by trailer, and can be simply driven off at the location of material that needs to be processed, and go to work very quickly.

With their capability to produce accurately-sized end-product with a cubical end product shape, mobile impact crushers work well as closed circuit stand-alone plants, or they can add significant productivity to any operation, working in tandem with a jaw crusher or screen plant.

Tracked impact crushing plants have evolved greatly over the last several decades, as their designs have been continuously updated and as the crushing market has changed. Major trends include the introduction of electric drive and hybrid systems as opposed to diesel-hydraulic drive systems, and decreases in size, weight, fuel consumption, cost-per-ton, and sound and dust generation.

Today's mobile impact crushers are ideal for use in a wide range of applications, including as a mobile recovered concrete crusher, or for asphalt and mixed C&D waste. They are available compliant to Tier 4 Final emissions standards, and can be equipped with or without a built-in screen, as well as many options specifically geared towards creating recycled materials. Todays mobile impact crushers are safer, more mobile, easier to maintain and operate, and are available with sophisticated machine automation and monitoring.

"The growth in recycling of concrete and asphalt recycling industries has led to higher demand for smaller, more mobile crushers," says John O'Neill, McCloskey International's VP of sales. "Over the last 10 years we have improved our control panel systems to provide operators with more knowledge and information about what is going on inside their machines at all times. The units are also easier and faster to set up."

According to Daryl Todd of B.C.-based Frontline Machinery, the Canadian dealer for Belgium-based crushing and screening plant manufacturer Keestrack, "Wesee a strong movement towards turning concrete and asphalt rubble materials into higher quality recycled materials such as construction sand, washed recycled drain rock, road mulch, RAP (reclaimed asphalt pavement) and a host of other quality products with a much higher value.

"The impact crusher's ability to handle steel-reinforced concrete, along with custom options, such as plastics and wood-waste removal systems, washing systems and more, has enabled recyclers to create much higher quality end products, and crush and process materials previously deemed only waste, or too difficult to process."

"The reason is the quality of the material and very cubical shape produced. The impact crusher is a first- and second-stage crusher in one unit, so you can crush a 600-mm product down to a final product for resale as recycling aggregate.

"Our machines are excellent in recycling asphalt, as we can slow down the rotor speed to crush the asphalt, but not the aggregate inside the asphalt, so the material can be reused in asphalt mixing plants, a huge savings on cost."

According to Norbert Dieplinger, Austria-based SBM Mineral Processing's international business development manager, "Specs are getting tighter so crushers must be much more accurate than in the past. For example, a few years back you could just crush aggregate down to 0- to 3-inch material and use it for road base. Now, engineers are allowing the use of more and more recycled asphalt into their mix, instead of all-natural aggregate and crushed concrete, and not just as road base material. With impact crushers, the shape is exactly what you need, you can get down to smaller sizes and they can process building debris with rebar."

Alexander Taubinger, Rubble Master's managing director and VP sales, says "Cost of ownership and costs per ton are key figures for our customer base." Rubble Master machines feature a diesel-electric drive that burns less fuel, and low maintenance costs are due to the company's latest design and product development.

"Back in the day, it was all about tons per hour. Machines were built overly strong and heavy with large, inefficient power solutions. This is second or third priority these days, since contractors have to meet other job requirements when it comes to most recycling applications."

He adds that with respect to end markets, Rubble Master has always been focused on the final product size and quality. "Lots of contractors still only think about reducing the size of material. It's all about reusable and resalable product size and quality these days."

The changing value of recovered metal, especially over the last decade, is a consideration for all recyclers and contractors managing recycled materials. For users of mobile impact crushers in the processing of concrete and C&D rubble, even with the fluctuating price of recovered steel seen over the last several years, efficient metal separation remains a key component.

"Unfortunately, with the way things have turned as of late, scrap iron is not worth a lot. But I can tell you that having systems in place to remove it is paramount," says Tim Harms, crushing and screening product manager, Kolberg Pioneer (a KPI-JCI & ASTEC Screens company.)

"If you have any metal contamination in your end product, you'll be in trouble trying to resell that product. So it's very important to get it removed. Ten years ago, scrap was of higher value and that was part of the equation. Now it's just the fact that you need to get it out so that you can resell the product. Impact crushers are very good at liberating scrap iron from concrete."

Stephen Whyte, product manager, mobile product development, KPI-JCI & Astec Mobile Screens, adds that the growth of the contractor/rental market has also been key in driving the growth of all tracked crushing and screening plants.

"Guys today can load a tracked impact crusher, go do a job for a week, load it off on the weekend, and they can be set, ready to go on the next site the following week," says Whyte. "It's the contractor/rental market that's really driven the mobile impact crusher market."

He adds that for impact crushing in general, mobile, tracked units are the least path of resistance to get into the business. "You've got the highest reduction ratio. You've probably got the lowest capital investment. And you can get the most bang for your buck'. Almost always you will see entry-level tracked impactors as the first choice for contractors getting into the C&D materials recycling business, no matter the brand."

The stand-out feature of the mobile crusher or tracked impactor for recycling applications, is its mobility, combined with high productivity per hour. Units are fully self-contained on their tracked undercarriage and can easily be driven off a trailer by one operator and quickly put to work, with excellent capability for moving directly to materials. Some models are even capable of tracking (moving about on their tracks) while crushing.

"The ability to move within the job site and job to job is important to the contractor, or other end user, thus driving the demand for portable crushers," says Jody Beasley, national sales director at Screen Machine. "One of the biggest expenses in material processing is physically handling the material. Every time material is moved, labour and expenses are involved. Tracked impact crushers bring the machine to the job site, right to the pile, and allow for very efficient material processing.

"It's all about tons per hour. Our machines have been designed to produce maximum tonnage and one significant way they do that more efficiently is through our patented Crusher Relief System. The Screen Machine Crusher Relief System allows the operator to raise the crusher lid up to six inches while the machine is in operation. This is a huge help in preventing jams inside the crusher and ultimately delivers thousands of additional tons of product over the life of the machine."

According to Stephen Whyte, KPI-JCI and Astec Mobile Screens, "Mobile impact crushers are higher capacity than they were when they first came on. When the first tracked machines came in, they were seen as crushers that were highly portable but would do less weight than the typical portable [trailer-mounted] machine. Whereas now, some of the tracked machines we manufacture can reach those same capacities, and compete with the portable setups.

"Another great feature with our impact crushers is that they allow operators to crush and track at the same time," he continues. "This is why you'll see a lot of these units being used along the highway. One operator can basically load the machine and operate the tracked crusher at the same time."

"This is very important," adds Kolberg-Pioneer's Tim Harms. "You can be crushing and don't have to disengage the crusher to track the machine. You can continue to crush while the machine is being moved around on its tracks, which is a big advantage with respect to time savings. Time is of a huge value. If you lose 10 percent of your time, just because you've got to wait for the crusher to stop so you can move it, those are dollars."

Traditionally, mobile impact crushers have used a diesel-hydraulic engine for the track-drive and power to the crusher. The advent of electric-drive and hybrid systems is one of the main advancements that has occurred over the last decade, and its development is seen by many as one of the most significant trends going forward, especially considering the importance of fuel efficiency, rising transport and operational costs and the global focus on reducing emissions.

"Lowest cost per ton produced is crucial in the customer's business," says Metso Minerals' product manager, Jouni Hulttinen, who adds that main focus areas in their Lokotrack line development have been ease of transport, maintenance and service, as well as safety and energy efficiency.

"Energy efficiency has been a very focused development area," says Hulttinen. "We have reduced fuel consumption up to 20 percent with our tracked impactors." He says one good example is the Lokotrack LT1213(S) (S' designates a built-in screen component) which uses a stand-by function' where the machine switches to idling mode if there is no load on the engine. "Just five minutes on stand-by, per hour, can save 10 litres of fuel per day."

According to Norbert Dieplinger, the drive systems in crushers manufactured by SBM are available as diesel-electric or can be run 100-percent electric. "Not only does electric power reduce the carbon footprint, it can save contractors up to 30 percent on fuel costs when you compare them to the diesel-hydraulic drive systems that were common in the past and are still used by lots of manufacturers," he says.

"This permits high fuel efficiency and allows optimal loading of the crusher," explains Joe Schappert, Kleemann's senior technical sales manager. "Outstanding performance is made possible in part by the extremely efficient direct drive, with which these machines are equipped. A latest-generation diesel engine transmits its power almost loss-free directly to the flywheel of the crusher, via a robust fluid coupling and V-belts. This drive concept enables enormous versatility, as the rotor speed can be adjusted in four stages to suit different processing applications."

A first question to ask when considering a purchase, according to McCloskey's John O'Neill, is: what do you want the machine to do? He says it is necessary for a solid sense of reality to be a big part of the buying decision. "Too many times the customer is upset because they expect peak performance to be the norm, when they need to be looking at all aspects of their operation and how it can support the crusher and the desired end goals or products."

"What kind of support equipment is available and can it support the tonnage capacity of the crusher?" he asks. He adds that other important questions include: Who are the customers? What is the application you intend to use it for? What spec are you working with? How large are the piles to be crushed?"

"If the impact crusher needs a part or maintenance items, can you be confident that the manufacturer will get those parts to you as quickly as possible?" asks Screen Machine's Jody Beasley. "Our machines are manufactured in Ohio, and all parts orders are fulfilled here. We pride ourselves on the fact that more than 97 percent of in-stock parts orders ship the same day."

"All impactors are not created equal, and the differences are significant," says Daryl Todd, Frontline Machinery. "We strongly suggest taking a close look when comparing various models. Start off with the technical specifications, including engine horsepower, the weight of rotor and blow bars, as well as ease of transport, machine weight and dimensions."

Todd says there are many questions to ask, including: Is the rotor direct-drive from the engine, electric drive or hydraulic drive? What is the hopper capacity and feeding height? And what are the after-screen options - single-, double- or triple-deck? Does the machine have the ability to track while in full production? What type / quality are the key components such as hydraulics and electronics? And what is the type and quality of steel used in the frame, crusher housing and rotor? He adds that any mobile impact crusher should also have a user-friendly design, with ease of changing blow bars, and ease of access for maintenance and servicing.

Keestrack's Michael Brookshaw says one of the main questions to ask when considering an impact crusher is: can you transport the unit with your own transport means? "The material that you need to crush in your area is important," he says.

"Look at the costs per ton involved on the purchasing and running of the unit. What are the amounts of material that need to be crushed? Are they large deposits of 30,000 tons or smaller deposits of 500 to 1,000 tons? You should also consider the feed size and capacity that you will need. Would electric drive provide an advantage on the environmental side of the business?"

He adds that the technical aspects of the unit are also very important. Electric drive, pre-screen before the crusher, crusher overload system, pan feeder under the crusher, weight, as well as service and operator friendliness of the unit are all areas that need to be considered. Joe Schappert from Kleemann says that buyers considering a purchase should make sure they choose the correct size for the application and consider how product will flow through the crusher.

"The Kleemann Continuous Feed System (CFS) manages a more equal loading of the crushing area, in which the conveying frequencies of the feeder trough and the pre-screen are adapted independently of each other to the level of the crusher, thus significantly boosting performance.

"Our new impact crushers are differentiated by their size and productivity," continues Schappert. "Our model MR 110 Zsi EVO 2 has a crusher inlet opening of 43.3 inches (1,100 mm), and the MR 130 Zi EVO 2 has a crusher inlet opening of 51 inches (1,300 mm). These provide feed capacities of up to 350 or 450 tph, respectively.

"Consider diesel-electric drives," he adds. "Our latest EVO 2 Mobirex mobile impact crushers utilize direct-drive crushers and electric drives for the vibrating conveyors, belts and the pre-screen. This permits high fuel efficiency and allows optimal loading of the crusher."

Looking ahead, Daryl Todd of Frontline Machinery says there will be more hybrid technology, electric/diesel hybrids, meaning reduced fuel consumption, as well as improved noise reduction. He says that we'll also see advances in contaminant removal systems and washing systems integrated into closed-circuit impact crushers.

GPS systems are another area where Todd expects advances to continue. "GPS systems provide remote monitoring and control, tying in with onboard belt scales," he says. "This allows managers to have total insight into remote operations."

Michael Brookshaw of Keestrack says their telematic system allows customers, distributors and the manufacturer to monitor their machines, inform from distance and advise on capacity, running of the unit and fault finding.

"There has also been much development in the area of wear parts, which are more durable than ever," says Brookshaw. "Our electric-hybrid and full-hybrid system, which we call Keebrid, are excellent in the areas of durability, lower emissions, running costs and all environmental issues."

For McCloskey's John O'Neill, the trend of using one machine to do multiple parts of an operation will continue to decline. "The crusher should crush and the screeners should screen," he says. "Trying to squeeze it all onto one platform is hard and often results in compromises, which if not acceptable to the customer, can be disastrous on the job site."

Rubble Master's Taubinger expects to see improvements in efficiency in all regards. "We expect a very heavy focus on emissions such as dust and noise, as well as more fuel efficiency, safety and ease of operation."

"Advanced diagnostic tools can enable the operator to monitor processes in real time with the ability to adjust settings on a touch screen on the crusher, or even from inside an excavator cab. This leads to further increases in safety and efficiency with a reduction in maintenance, operating costs and downtime.

"Diesel-electric power is the future because of all the advantages it provides with respect to decreased fuel costs and decreased carbon footprint," adds Dieplinger, who also points out that this will make a big difference in years to come, especially considering new carbon taxes being implemented globally.

According to Metso's Jouni Hulttinen, base construction for bikeways, road base and industrial areas are growing end markets for material made from recycled C&D, concrete and asphalt. He says mobile impact crushers, and all types of crushers for recyclable materials, will increasingly move more towards application in the production of high-quality end products.

"Use of the end material has gone from the most basic application to higher-spec building materials," says Hulttinen. "The future trend will go more towards substituting aggregates, new concrete made from recycled concrete, and recycled asphalt added to make new asphalt." RPN