tag:blogger.com,1999:blog-63192660458422948652024-02-08T11:05:47.080-08:00Excavation Equipmentbuitenzorghttp://www.blogger.com/profile/08591401285041390631noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-6319266045842294865.post-677039545528671062009-12-20T00:57:00.003-08:002009-12-20T00:57:55.716-08:00Caterpillar D-11The D-11 from Caterpillar is among the series of<br />tracked type tractors are among the largest<br />conventional bulldozers in the world, second to the<br />Komatsu D575. It comes in two variations, the<br />standard D-11R and the bigger and heavier D-11R CD.<br /><br />The D-11 bulldozer is among the upper end of<br />Caterpillars track type tractors, which range in<br />power and size from the D-3 (77 HP) to the D-11R<br />(935 HP).<br /><br />The primary use for the D-11 is for moving large<br />quantities of rock, dirt, etc. short distances in<br />confined spaces. The D-11 is often times used in<br />quarries. The price, size, power and weight of<br />the D11 dictate that they are used primarily for<br />major products. You can normally find the D11<br />used in forestry, mining, excavation, and quarry<br />operations.<br /><br />The D-11 is high known and favored for its amazing<br />power and ability to rip into the earth, making<br />them ideal for agricultural and rock ripping type<br />work. The ripper is the long claw like device<br />you can find on the back of the D-11. Rippers come<br />in single shank or in groups of two or more, known<br />as multi shank rippers. Normally, a single shank<br />is all you need for heavy ripping work.<br /><br />The ripping of rock will allow the ground surface<br />rock to be broken up into small, easy to handle<br />and transport rubble which can then be removed<br />so that you can grade the area.<br /><br />The agricultural ripping feature will allow rocky<br />or very hard ground to be broken up so that<br />otherwise unarable land can be put to use with<br />agricultural applications. <br /><br />The blade on the front of the D-11 comes in 3<br />varieties:<br /> 1. A straight blade which is short and<br />has no lateral curve, no side wings, and is ideal<br />for fine grading.<br /> 2. A universal blade which is tall and<br />very curved, and has large side wings which can<br />carry more material.<br /> 3. A combination blade that is shorter,<br />has less curvature, and smaller wings on the side.<br /><br />The nearest competition for the Caterpillar D-11<br />is the Komatsu D-475. The Caterpillar can best be<br />distinguished from the Komatsu by the elevated drive<br />sprocket or high drive system that results in a<br />triangular, rather than oval, shaped caterpillar<br />track.<br /><br />The D-11 is a fine testament to the superb products<br />Caterpillar offers. They are great for excavation<br />and clearing dirt, as they can push large piles<br />of dirt. They are also good for rock, as they can<br />move even the biggest of rocks from the ground<br />without breaking a sweat. If you've wanted a<br />bulldozer with uncanny strength and abilities, the<br />D-11 is just what you need on your job site.buitenzorghttp://www.blogger.com/profile/08591401285041390631noreply@blogger.com0tag:blogger.com,1999:blog-6319266045842294865.post-91567083099380816142009-12-20T00:57:00.001-08:002009-12-20T00:57:28.047-08:00Case CX700 And CX330The company of Case has done it again, by introducing<br />yet another spectacular excavator, the CX700, which<br />weighs in at 70 metric tons and represents a new<br />size for Case, fitting perfectly between the CX460<br />and CX800 models. Case has also taken advantage of<br />Tier 3 technologies and upgraded the CX330, increasing<br />the power and improving fuel economy, all while adding<br />features that will enhance comfort for the operator<br />and simplify maintenance.<br /><br />Power<br />The CX700 is a powered by a high performance, fuel<br />efficient Isuzu engine that is completely Tier 3<br />certified. With an operating weight of 153,400 lbs.<br />and over 400 HP, the CX700 is capable of digging to<br />31 feet 11 inches with reaches up to 46 feet 11 inches.<br /><br />The frame for the CX700 is based on the larger CX800<br />to ensure optimum durability and reliability,<br />especially given the powerful performance specs the<br />machine calls for.<br /><br />New to the Case CX700 is a switch that will allow<br />you to give priority to either the boom or the swing<br />functions. The CX700 also offers retractable side<br />frames and an optional counterweight removal device,<br />which makes transporting easier than ever before.<br /><br />More durable<br />The Isuzu engine that powers the CX700 is fully<br />electronic and uses a high pressure rail system that<br />provides a 5% increase in HP and also gives the<br />excavator 10% better fuel economy.<br /><br />Several enhancements have been made to the CX330<br />upon releasing the CX700, including the overall<br />reliabilty and durability of the machine, which<br />includes the strength of the front idlers by beefing<br />up the thickness and design of the center hub and<br />improving the track seal design for increased life.<br /><br />Upgrades<br />Several of the features that come standard with the<br />CX700 are upgrades for the CX330 that will also be<br />applied to other large Case excavator models that<br />move forward. The key upgrades include ease of<br />maintenance and servicing. Both the CX330 and CX700<br />models feature an easy maintenance system, lubricated<br />bushings throughout the boom and arm, which provides<br />extended lube periods of up to 1,000 hours. The<br />engine oil filters are now mounted vertically in<br />the pump house access area, which allows for easier<br />access and servicing.<br /><br />The addition of a modified oil drain plug with a<br />check valve will make it easier than ever to change<br />oil. Both the CX330 and CX700 both offer finer<br />fuel filtration, up to four microns, which provides<br />increased uptime and improved fuel performance.<br /><br />The upgraded cooling system features a design that<br />reduces the stacking of coolers for better cooling<br />efficiency and also improves access to ease the<br />removal of debris. In addition to this, the Case<br />CX700 also features a hydraulically driven,<br />thermostat controlled reversible fan for improving<br />the cooling of the engine and easy cleanout of the<br />materials.buitenzorghttp://www.blogger.com/profile/08591401285041390631noreply@blogger.com0tag:blogger.com,1999:blog-6319266045842294865.post-74977874341190479872009-12-20T00:56:00.002-08:002009-12-20T00:57:00.855-08:00Case CX330As you may know, the CX330 is the upgrade to the<br />9050B model from Case. The CX330 is quite an upgrade,<br />being much bigger than the 9050B. <br /><br />In standard form, the CX330 is almost 5,000 pounds<br />heavier than the 9050B. This added weight comes<br />from a larger counterweight and from a redesigned<br />carbody that will now completely enclose the swing<br />system. <br /><br />These added pounds will also contribute to the boost<br />in the CX330s over-front capacity, and in combination<br />with higher hydraulic pressures the travel circuit,<br />give the excavator a very impressive 16% boost in<br />draw bar pull, which means more power for negotiating<br />poor underfoot conditions and very steep grades.<br /><br />In addition to the new features, the CX330s digging<br />linkage has been enhanced in many ways. The boom<br />and arm, deeper in cross section to accommodate<br />higher digging forces, now incorporate V-groove<br />type welds that are placed by robots and 100 percent<br />ultra sound inspected.<br /><br />The boom foot and boom to arm pivots use improved<br />bushings, new plated pins, and new dust seals that<br />combine to make a more durable and easier to take<br />care of assembly. The newly hardened chrome pins<br />will also contribute to the overall digging linkage<br />durability.<br /><br />Even though the basic 6 cylinder, 8.3 liter engine<br />in the CX330 has been used in Case products since<br />1985, continual refinement over the years has<br />changed nearly 85% of the original engine's part<br />numbers. The CX330 features 259 net HP with an<br />air to air intercooler and a free breathing 24 valve<br />cylinder head. <br /><br />The electronic logic that controls the new engine's<br />fuel system tracks the machine's operating parameters<br />and keeps the system continually armed to respond<br />instantly and precisely to the fuel requirements of<br />each individual cylinder. The total electronic<br />design of the engine will also eliminate cable<br />and step motor controls from the fuel system, with<br />a large gain in reliability.<br /><br />Even though modest changes in the CX330s digging<br />linkage geometry will contribute to the higher<br />forces of digging, the big guns here are the<br />refinement of the trench with it's open center<br />hydraulic system. The main pressure in the<br />implement circuit is up almost 8%, with the hydraulic<br />cylinder diameter up 7% as well.<br /><br />Hydraulic power<br />The increase in hydraulic power combines with the<br />more efficient linkage geometry to yield almost<br />20% more bucket digging force and 15% more arm<br />force. With 19 more HP, the CX330 can drive it's<br />main hydraulic pumps with much better force. In<br />addition, the new pumps will produce about 6% more<br />flow for increased hydraulic speed at much lower<br />system pressures.<br /><br />The new PCS (Pro Control System) will manage the<br />hydraulic system and interface with the 6TAA-830<br />engine, and does it with more electronic genious<br />than the 9050B did. Similar to the 9050B, the<br />CX330 does have manually selected working modes,<br />although it departs from previous designs by adding<br />a new automatic work mode. By working in the<br />new automatic mode, the CX330 can analyze load<br />demands and operator input at the joystick, then<br />adjust the engine and hydraulic pumps to balance<br />power and speed with efficiency and even with the<br />economy.<br /><br />Other PCS features include a high speed assistance<br />system, which will speed up boom and arm functions,<br />and an automatic power boost system as well. The<br />power boost system will increase main pressure by<br />10% for 8 seconds if the implement system reaches<br />the standard relief pressure for more than 1 second<br />in tough digging conditions.<br /><br />With everything the CX330 from Case offers, it's<br />truly the best excavtor in years. Case has outdone<br />themselves this time, doing their part to make<br />excavating both fun and exciting. If you've been<br />looking for the perfect upgrade from the 9050B, the<br />CX330 is all that and a bag of chips.buitenzorghttp://www.blogger.com/profile/08591401285041390631noreply@blogger.com0tag:blogger.com,1999:blog-6319266045842294865.post-42500295743502940182009-12-20T00:56:00.001-08:002009-12-20T00:56:27.405-08:00BulldozerThe bulldozer is a very powerful crawler that is<br />equipped with a blade. The term bulldozer is often<br />used to mean any type of heavy machinery, although<br />the term actually refers to a tractor that is fitted<br />with a dozer blade.<br /><br />Often times, bulldozers are large and extremely<br />powerful tracked vehicles. The tracks give them<br />amazing ground mobility and hold through very rough<br />terrain. Wide tracks on the other hand, help to<br />distribute the weight of the dozer over large areas,<br />therefore preventing it from sinking into sandy or<br />muddy ground. <br /><br />Bulldozers have great ground hold and a torque<br />divider that's designed to convert the power of the<br />engine into dragging ability, which allows it to<br />use its own weight to push heavy objects and even<br />remove things from the ground. Take the Caterpillar<br />D9 for example, it can easily tow tanks that weight<br />more than 70 tons. Due to these attributes,<br />bulldozers are used to clear obstacles, shrubbery,<br />and remains of structures and buildings.<br /><br />The blade<br />The blade on a bulldozer is the heavy piece of<br />metal plate that is installed on the front. The<br />blade pushes things around. Normally, the blade<br />comes in 3 varieties:<br /> 1. A straight blade that is short and has<br />no lateral curve, no side wings, and can be used<br />only for fine grading.<br /> 2. A universal blade, or U blade, which is<br />tall and very curved, and features large side wings<br />to carry more material around.<br /> 3. A combination blade that is shorter,<br />offers less curvature, and smaller side wings.<br /><br />Modifications<br />Over time, bulldozers have been modified to evolve<br />into new machines that are capable of things the<br />original bulldozers weren't. A good example is<br />that loader tractors were created by removing the<br />blade and substituting a large volume bucket<br />and hydraulic arms which will raise and lower the<br />bucket, therefore making it useful for scooping<br />up the earth and loading it into trucks.<br /><br />Other modifications to the original bulldozer<br />include making it smaller to where it can operate<br />in small working areas where movement is very<br />limited, such as mining caves and tunnels. Very<br />small bulldozers are known as calfdozers.<br /><br />History<br />The first types of bulldozers were adapted from<br />farm tractors that were used to plough fields. In<br />order to dig canals, raise earth dams, and partake<br />in earthmoving jobs, the tractors were equipped<br />with a thick metal plate in the front. Later<br />on, this thick metal plate earned the name blade.<br /><br />The blade of the bulldozer peels layers of soil<br />and pushes it forward as the tractor advances. <br />The blade is the heart and soul of the bulldozer,<br />as it was the first accessory to make full use<br />for excavation type jobs.<br /><br />As the years went by, when engineers needed<br />equipment to complete larger jobs, companies such<br />as CAT, Komatsu, John Deere, Case, and JCB started<br />to manufacture large tracked earthmoving equipment.<br />They were very loud, very large, and very powerful<br />and therefore earned the nickname "bulldozer".<br /><br />Over the years, the bulldozers got bigger, more<br />powerful, and even more sophisticated. The<br />important improvements include better engines,<br />more reliable drive trains, better tracks, and<br />even hydraulic arms that will enable more precise<br />manipulation of the blade and automated controls.<br />As an added option, bulldozers can come equipped<br />with a rear ripping claw to break up pavement or<br />loosen rocky soil.<br /><br />The best known manufacturer of bulldozer is CAT,<br />which has earned a vast reputation for making<br />tough and durable, yet reliable machines. Even<br />though the bulldozer started off a modified farm<br />tractor, it rapidly became one of the most useful<br />pieces of equipment with excavating and construction.buitenzorghttp://www.blogger.com/profile/08591401285041390631noreply@blogger.com0tag:blogger.com,1999:blog-6319266045842294865.post-10717843928448099432009-12-20T00:42:00.000-08:002009-12-20T00:54:57.103-08:00Backhoe LoaderAlso referred to as a loader backhoe, the backhoe<br />loader is an engineering and excavation vehicle that<br />consists of a tractor, front shovel and bucket and<br />a small backhoe in the rear end. Due to the small<br />size and versatility, backhoe loaders are common<br />with small construction projects and excavation type<br />work.<br /><br />Originally invented in Burlington Iowa back in 1857,<br />the backhoe loader is the most common variation of<br />the classic farm tractor. As the name implies, it<br />has a loader assembly on the front and a backhoe<br />attachment on the back. <br /><br />Anytime the loader and backhoe are attached it is<br />never referred to as a tractor, as it is not normally<br />used for towing and doesn't normally have a PTO.<br />When the backhoe is permanently attached, the<br />machine will normally have a seat that can swivel<br />to the rear to face the backhoe controls. Any type<br />of removable backhoe attachments will normally have<br />a seperate seat on the attachment itself.<br /><br />Backhoe loaders are common and can be used for many<br />tasks, which include construction, light transportation<br />of materials, powering building equipment, digging<br />holes and excavating, breaking asphalt, and even<br />paving roads.<br /><br />You can often replace the backhoe bucket with<br />other tools such as a breaker for breaking and<br />smashing concrete and rock. There are some loader<br />buckets that offer a retractable bottom, which<br />enable it to empty the load more quickly and<br />efficiently.<br /><br />The retractable bottom loader buckets are often<br />times used for grading and scratching off sand.<br />The front assembly on a backhoe may be either<br />removable or permanently attached. Often times,<br />the bucket can be replaced with other tools or<br />devices. In order to mount different attachments<br />to the loader, it must be equipped with a tool<br />coupler. The coupler consists of two hydraulic<br />cylinders on the end of the arm assembly, which<br />can expand and retract to allow different tools to<br />be attached to the unit.<br /><br />There are several types of backhoe loader brands,<br />including New Holland, John Deere, and Case. Some<br />will offer you cabs, while others won't. The<br />newer types of backhoe loaders even offer you air<br />conditioning, radios, and other accessories that<br />make you feel like you are working with luxury.<br /><br />Common with excavating jobs, the backhoe can serve<br />many purposes. It can haul equipment and supplies<br />in the loader bucket. Another great use is to cover<br />up dirt when filling in trench lines or covering<br />up pipe that was just put in the ground. The<br />backhoe attachment at the rear is ideal for digging<br />water pipes and sewer pipes.<br /><br />The best thing about the backhoe loader is the<br />fact that they are easy to operate. You don't<br />need to be a rocket scientist to fully operate this<br />nifty piece of equipment.buitenzorghttp://www.blogger.com/profile/08591401285041390631noreply@blogger.com0