{"id":21873,"date":"2024-04-17T15:22:27","date_gmt":"2024-04-17T13:22:27","guid":{"rendered":"https:\/\/mequipment.ro\/?p=21873"},"modified":"2025-02-28T18:27:18","modified_gmt":"2025-02-28T16:27:18","slug":"cele-mai-mari-buldozere-pe-senile-din-lume","status":"publish","type":"post","link":"https:\/\/mequipment.ro\/en\/cele-mai-mari-buldozere-pe-senile-din-lume\/","title":{"rendered":"Cele mai mari buldozere pe \u0219enile din lume"},"content":{"rendered":"

Munca grea este l\u0103sat\u0103 mereu \u00een seama utilajelor heavy-duty, motiv pentru care construc\u021bia structurilor de dimensiuni impresionante sau lucrul \u00een mine \u0219i cariere mari impun cerin\u021be pe m\u0103sur\u0103 \u00een ceea ce prive\u0219te dimensiunea, performan\u021ba \u0219i fiabilitatea utilajelor. \u00cemping tot ce le st\u0103 \u00een cale, au motoare super-puternice, \u0219enile ce trec peste orice, rippere ce str\u0103pung aproape orice tip de sol \u0219i lame de mare capacitate. Bun venit la un nou episod din seria \u201eWorld-Class Machinery<\/font><\/a><\/strong>\u201d: cele mai mari buldozere pe \u0219enile din lume!<\/em> | M. Equipment <\/strong><\/p>\n

Pentru c\u0103 avem \u00een vedere acele buldozere gigant, e de la sine \u00een\u021beles c\u0103 sunt utilaje proiectate s\u0103 fac\u0103 fa\u021b\u0103 celor mai dure condi\u021bii de lucru. \u00cen cazul lor, zicala \u201ebigger is better\u201d se potrive\u0219te perfect. Sunt utilaje echipate perfect pentru condi\u021bii grele, unde \u00ee\u0219i folosesc optim arsenalul din dotare: lama, ripper-ul \u0219i puterea motorului transferat\u0103 la nivelul trenului de rulare. Dar s\u0103 le lu\u0103m \u00een ordine descresc\u0103toare, \u00een func\u021bie de masa opera\u021bional\u0103.<\/p>\n

\"Cele1. Komatsu D475A-8<\/strong>
\nDac\u0103 e nevoie de un buldozer minier versatil ce poate merge de la ruperea rocii dure p\u00e2n\u0103 la cur\u0103\u021barea \u00een jurul unei dragline, Komatsu D475A-8<\/font><\/a><\/strong> este, la propriu, alegerea \u201ecea mai grea\u201d. Proiectat pentru a deplasa mai mult material la un cost per ton\u0103 mai mic dec\u00e2t modelele anterioare, buldozerul D475A-8 pune accent pe putere, stabilitate \u0219i performan\u021b\u0103 solid\u0103. Lansat \u00een 2020, D475A-8 are o mas\u0103 opera\u021bional\u0103 de 112 tone. Motorul Komatsu SAA12V140E-7, Stage V, dezvolt\u0103 697 kW \/ 934 hp @ 2.000 rpm, la deplasarea \u00eenainte, \u0219i 777 kW \/ 1040 hp @ 2.000 rpm, \u00een mar\u0219arier. Pentru eficien\u021ba deplas\u0103rii materialului pe distan\u021be mai lungi, ambreiajul cu func\u021bie de blocare a convertizorului de cuplu poate fi cuplat automat. Puterea motorului este distribuit\u0103 direct c\u0103tre transmisie, cresc\u00e2nd viteza la sol \u0219i eficien\u021ba utilajului. Scarificatorul mare este ideal pentru s\u0103pare. Func\u021bia Auto Downshift, modul de \u00eencetinire la mersul \u00een mar\u0219arier sau modul de control al derap\u0103rii \u0219enilei (Track shoe slip control mode) sunt u\u0219or accesibile \u0219i pot fi anulate rapid. Sistemul trenului de rulare K-Bogie cre\u0219te stabilitatea \u0219i trac\u021biunea utilajului.
\nMasa opera\u021bional\u0103: 112.600 kg | Putere: 697 kW | Capacit\u0103\u021bi lam\u0103: 27.2-34.4 m\u00b3<\/em><\/p>\n

\"Cele2. Shantui SD90-C5<\/strong>
\nSD90-C5 este cel mai mare buldozer minier al produc\u0103torului chinez Shantui \u0219i ocup\u0103 locul 2 \u00een clasamentul nostru. Modelul v\u00e2rf de gam\u0103 c\u00e2nt\u0103re\u0219te 106 tone, iar motorul Cummins QST30 dezvolt\u0103 o putere de 708kW (950hp) @2100rpm. Cabina operatorului a fost proiectat\u0103 cu accent pe ergonomie, vizibilitate \u0219i reducerea zgomotului la interior (80 dB). SD90-C5 poate fi echipat cu lam\u0103 Semi-U sau U. Transmisia Torqflow const\u0103 dintr-un convertizor de cuplu cu ambreiaj cu blocare \u0219i o transmisie planetar\u0103, cu ambreiaj cu mai multe discuri, care este ac\u021bionat\u0103 hidraulic \u0219i lubrifiat\u0103 for\u021bat pentru o disipare optim\u0103 a c\u0103ldurii. Buldozerul folose\u0219te o lam\u0103 Semi-U, lat\u0103 de 5265 mm, cu o capacitate de 39 m\u00b3. Ad\u00e2ncimea maxim\u0103 a ripper-ului este de 1672 mm.
\nMasa opera\u021bional\u0103: 106.260 kg | Putere: 708 kW | Capacitate lam\u0103: 39 m\u00b3<\/em><\/p>\n

\"Cele3. Cat D11<\/strong>
\nLansat \u00een 2019, buldozerul Cat D11 dispune de un nou sistem hidraulic \u0219i o putere mare \u00een mar\u0219arier, c\u0103rora li se adaug\u0103 cele mai noi tehnologii. Proiectat pentru a fi reconstruit de mai multe ori, D11 are un cadru principal reproiectat, pentru un CTO mai mic pe toat\u0103 durata de exploatare. Noul sistem hidraulic cu senzor de detec\u021bie a sarcinii \u0219i noile componente ale sistemului de propulsie asigur\u0103 c\u00e2\u0219tiguri de eficien\u021b\u0103 a consumului de p\u00e2n\u0103 la 8%. Noul convertizor de cuplu cu stator ofer\u0103 o eficien\u021b\u0103 crescut\u0103 a lan\u021bului cinematic. D11 a \u00eembun\u0103t\u0103\u021bit trenul de rulare cu pinion de antrenare \u00een\u0103l\u021bat, oferind un cadru cu role de \u0219enile mai robust pentru a prelungi durata de via\u021b\u0103 a componentelor. Motorul Cat C32 dezvolt\u0103 o putere nominal\u0103 de 634 kW (850 hp) \u00eenainte \u0219i 712 kW (955 hp) \u00een mar\u0219arier. Caterpillar ofer\u0103 o gam\u0103 de tehnologii standard \u0219i op\u021bionale, precum Automated Blade Assist, Enhanced Auto Shift, AutoCarry, Auto Ripper Control. \u00cen 2021, Caterpillar a adus la MinEXPO cel mai mare, mai puternic \u0219i mai eficient buldozer din lume cu transmisie electric\u0103<\/font><\/a><\/strong> \u0219i tren de rulare cu pinion de antrenare \u00een\u0103l\u021bat \u2013 Cat D11 XE.
\nMasa opera\u021bional\u0103: 104.236 kg | Putere: 634 kW | Capacit\u0103\u021bi lam\u0103: 27.2-43.6 m\u00b3<\/em><\/p>\n

\"Cele4. Shantui DH80-C6 RS<\/strong>
\nAl doilea model al produc\u0103torului chinez din clasamentul nostru este DH80-C6 RS. E un buldozer propulsat de un motor Weichai 8M33 controlat electronic \u0219i un sistem de ac\u021bionare hidrostatic Linde, cu r\u0103spuns rapid, pentru o eficien\u021b\u0103 ridicat\u0103 a transmisiei. Ceea ce atrage aten\u021bia este trenul de rulare cu pinion de ac\u021bionare \u00een\u0103l\u021bat, dup\u0103 modelul buldozerelor Cat. Trebuie s\u0103 recunosc c\u0103 nu \u0219tiu dac\u0103 Shantui are vreun acord cu Cat privind acest \u201efeature\u201d. A\u0219adar, transmisia cu reductor \u00een pozi\u021bie \u00een\u0103l\u021bat\u0103, rolele duble ale \u0219enilelor \u0219i suspensia \u00een form\u0103 de K se adapteaz\u0103 diferitelor condi\u021bii de lucru. Rezervorul de combustibil 1168 litri \u00eendepline\u0219te cerin\u021bele de operare pentru cel pu\u021bin 14 ore. Lama standard Semi-U \u0219i ripper-ul cu un singur dinte sunt concepute pentru exploat\u0103ri miniere.
\nMasa opera\u021bional\u0103: 75.000 kg | Putere: 570 kW | Capacitate lam\u0103: 20 m\u00b3<\/em><\/p>\n

\"Cele5. Komatsu D375A-8<\/strong>
\nBuldozerul de 72 tone D375A\u20108 este ac\u021bionat de un motor Komatsu SAA6D140E\u20107, de 474 kW la 1.800 rpm pentru mersul \u00eenainte \u0219i 578 kW la 1.800 rpm \u00een mar\u0219arier. Pentru o eficien\u021b\u0103 mai mare \u00een timpul turelor lungi de operare, ambreiajul cu blocarea convertizorului de cuplu poate fi cuplat automat. \u00cen orice moment, modul de lucru poate fi setat fie pe \u201emodul Power\u201d pentru produc\u021bie maxim\u0103, fie pe \u201emodul E\u201d pentru operare economic\u0103. Cadrul principal \u00eembun\u0103t\u0103\u021be\u0219te rigiditatea utilajului cu 125% \u0219i \u00eei cre\u0219te semnificativ durabilitatea. Noua articula\u021bie mono-blade asigur\u0103 un balans mai mic al lamei \u0219i extinde intervalele de \u00eentre\u021binere ale articula\u021biilor lamei. Sistemul Palm Command Control (PCCS) este proiectat ergonomic pentru a oferi operatorului o postur\u0103 relaxat\u0103 \u0219i un control superb. Schimbarea vitezelor este simplificat\u0103 cu ajutorul butoanelor. Joystick-ul pentru controlul echipamentului de lucru permite at\u00e2t ac\u021bionarea lamei, c\u00e2t \u0219i a ripper-ului.
\nMasa opera\u021bional\u0103: 72.900 kg | Putere 474 kW | Capacitate lam\u0103: 22 m3<\/em><\/p>\n

\"Cele6. Liebherr PR 776 Litronic<\/strong>
\nLa momentul lans\u0103rii sale pe pia\u021b\u0103, PR 776 era primul buldozer cu transmisie hidrostatic\u0103 \u00een clasa de 70 t<\/font><\/a><\/strong>. Buldozerul este propulsat de un motor diesel Liebherr \u00een 12 cilindri cu o putere de 565 kW. PR 776 are o greutate opera\u021bional\u0103 de 74 t \u015fi lucreaz\u0103 cu o lam\u0103 Semi-U de 18 m\u00b3 sau U, de 22 m\u00b3. O caracteristic\u0103 nou\u0103 \u00een aceast\u0103 clas\u0103 de utilaje este unitatea de transmisie hidrostatic\u0103 infinit variabil\u0103, folosit\u0103 pe toate buldozerele pe \u0219enile Liebherr. Un alt avantaj al noului concept de antrenare este optimizarea fluxului de presiune. Presiunea hidraulic\u0103 se bazeaz\u0103 pe cerere \u00een func\u0163ie de sarcin\u0103. Sistemul inteligent Liebherr de management al motorului \u00eempreun\u0103 cu sistemul Power Efficiency \u0219i transmisia hidrostatic\u0103 permit manevrarea \u0219i optimizarea tuturor sistemelor \u0219i proceselor de echipamente, men\u0163in\u00e2nd o tura\u0163ie constant\u0103 a motorului, reduc\u00e2nd consumul de combustibil.
\nMasa opera\u021bional\u0103: 71.800-73.189 kg | Putere: 565 kW | Capacit\u0103\u021bi lam\u0103: 18.50-22 m\u00b3<\/em><\/p>\n

\"Cele7. Dressta TD-60M<\/strong>
\nSingurul produc\u0103tor european din acest top al buldozerelor de talie mare este Dressta, cu modelul s\u0103u de 70 tone TD-60M. Echipat cu un motor Cummins QSK19 de 19 litri, cu o putere de 455 kW (610 hp) @ 2000 rpm. Convertizorul de cuplu single-stage are un raport de blocare de 2,3:1. Transmisie modular\u0103 de tip powershift este controlat\u0103 electro-hidraulic. Viteza de deplasare poate fi presetat\u0103, iar schimbarea a treptelor de vitez\u0103 se face automat. Modulul exclusiv de direc\u021bie permite virarea treptat\u0103, men\u021bin\u00e2nd \u00een acela\u0219i timp puterea maxim\u0103 pe ambele \u0219enile, plus performan\u021ba conven\u021bional\u0103 a ambreiajului \u0219i a fr\u00e2nei pentru viraje str\u00e2nse sau pivotante. Cabina ofer\u0103 o vizibilitate optim\u0103 asupra \u0219enilelor, col\u021burilor lamei \u0219i ripper-ului. Performan\u021ba lamei \u0219i a ripper-ului este asigurat\u0103 de controlul supapelor electro-hidraulice Rexroth. Compatibil cu solu\u021biile de control Leica, Topcon \u0219i Trimble, buldozerul TD-60 “promite” mai pu\u021bine treceri, economie de combustibil mai mare, oboseal\u0103 mai redus\u0103 \u0219i o mai mare satisfac\u021bie pe \u0219antier pentru operator.
\nMasa opera\u021bional\u0103: 70.800 kg | Putere: 455 kW (610 hp) | Capacit\u0103\u021bi lam\u0103: 18.6-39.8 m\u00b3<\/em><\/p>\n

\"Cele8. Cat D10<\/strong>
\nRobustul buldozer Cat D10<\/font><\/a><\/strong> folose\u0219te un convertizor de cuplu cu stator \u0219i un sistem hidraulic cu senzor de sarcin\u0103. Noua configura\u021bie este cu p\u00e2n\u0103 la 6% mai eficient\u0103 comparativ cu modelul Cat D10T2. D10 este ac\u021bionat de un motor Cat C27, care ofer\u0103 solu\u021bii de post-tratare ce \u00eendeplinesc standardele de emisii Tier 4 Final\/ Stage V. Motorul C27 comut\u0103 set\u0103rile de putere \u00een func\u021bie de direc\u021bia de deplasare pentru a oferi cu p\u00e2n\u0103 la 20% mai mult\u0103 putere \u00een mar\u0219arier, reduc\u00e2nd timpii de ciclu. Pe l\u00e2ng\u0103 c\u00e2\u0219tigurile de productivitate de p\u00e2n\u0103 la 3%, noul buldozer D10 ofer\u0103 un consum de combustibil redus cu p\u00e2n\u0103 la 4% fa\u021b\u0103 de D10T2 \u0219i cu p\u00e2n\u0103 la 10% fa\u021b\u0103 de modelul D10T. Echipat standard cu lam\u0103 cu dubl\u0103 \u00eenclinare \u0219i sistem automat de asisten\u021b\u0103 a lamei (ABA), buldozerul reduce sarcina de lucru a operatorului prin automatizarea mi\u0219c\u0103rii lamei pentru a ajusta pozi\u021biile de \u00eenc\u0103rcare, deplasare \u0219i \u00eempr\u0103\u0219tiere a materialului. \u00cen plus, este personalizabil cu mai multe tehnologii op\u021bionale, precum: func\u021bia AutoCarry, Cat Grade Control 3D sau Automatic Ripper Control.
\nMasa opera\u021bional\u0103: 70.256 kg | Putere: 449 kW | Capacit\u0103\u021bi lam\u0103: 18.5-22 m\u00b3<\/em><\/p>\n

\"Cele9. Liebherr PR 766 Litronic<\/strong>
\nPR 766 G8<\/font><\/a><\/strong> face parte din cea mai nou\u0103 genera\u021bie de utilaje Liebherr. Transmisia pozi\u021bioneaz\u0103 buldozerul \u00eentr-o clas\u0103 superioar\u0103, cu convertizoare conven\u021bionale de cuplu. PR 766 G8 este propulsat de un motor diesel Liebherr cu 8 cilindri, cu o putere maxim\u0103 de 360 kW (490 hp) \u0219i respect\u0103 standardele de emisii Stage V\/Tier 4F. Transmisia hidrostatic\u0103 infinit variabil\u0103 permite maximizarea utiliz\u0103rii \u0219i economisirea resurselor. Componentele transmisiei \u0219i sistemul inteligent de management al motorului Liebherr sunt perfect sincronizate, \u00eenc\u00e2t motorul diesel s\u0103 se men\u021bin\u0103 la tura\u021bie constant\u0103, \u00een limite optime (diferit de buldozerele similare la care tura\u021bia motorului fluctueaz\u0103 \u00een timpul utiliz\u0103rii). Pentru a se plia pe cerin\u021bele de operare grele din soluri st\u00e2ncoase, designul cu pinion de antrenare \u00een\u0103l\u021bat de pe PR 776 a fost adaptat special pentru modelul PR 766 G8. Rolele de ghidare cu rulmen\u021bi pivotan\u021bi \u0219i rolele de \u0219enile absorb \u0219ocurile \u0219i men\u021bin o trac\u021biune foarte bun\u0103 a \u0219enilelor. Un avantaj major este pozi\u021bia \u00eenalt\u0103 a reductorului final: High Drive reduce uzura pinioanelor \u0219i a buc\u0219elor de rulment \u0219i protejeaz\u0103 transmisia final\u0103.
\nMasa opera\u021bional\u0103: 53.460-54.333 kg | Putere: 310 kW | Capacit\u0103\u021bi lam\u0103: 13.6-17 m\u00b3<\/em><\/p>\n

\"Cele10. Cat D9<\/strong>
\nLansat \u00een 2020, buldozerul Cat D9<\/font><\/a><\/strong> \u00eenlocuie\u0219te modelul D9T. Mo\u0219tenind longevitatea \u0219i fiabilitatea buldozerelor Cat, noul D9 reduce cu p\u00e2n\u0103 la 3% costurile totale per unitatea de material deplasat. Eficien\u021ba datorat\u0103 convertizorului de cuplu cu stator duce la un consum de combustibil redus cu p\u00e2n\u0103 la 5%, astfel c\u0103 buldozerul scade costurile de \u00eentre\u021binere \u0219i repara\u021bii cu p\u00e2n\u0103 la 4%. Motorul Cat C18 include o serie de solu\u021bii de post-tratare a gazelor de evacuare, pentru a respectaa normele Stage V. D9 vine echipat cu direc\u021bie diferen\u021bial\u0103, pentru o raz\u0103 de virare str\u00e2ns\u0103 \u0219i capacitatea de a men\u021bine viteza la sol \u00een timpul mi\u0219c\u0103rilor de \u00eentoarcere. Trenul de rulare cu pinion de antrenare \u00een\u0103l\u021bat asigur\u0103 \u0219enilei un contact mai bun cu solul, pentru un risc redus de derapare. Senzorii integra\u021bi ofer\u0103 acces la tehnologia avansat\u0103 de operare. Sistemul standard Product Link Elite \u0219i Vital Information Management System (VIMS) sunt instrumente puternice de gestionare a utilajului \u0219i ofer\u0103 informa\u021bii despre buldozer, cum ar fi localizarea, orele de func\u021bionare, starea utilajului sau informa\u021bii de productivitate.
\nMasa opera\u021bional\u0103: 49.988 kg | Putere 337 kW | Capacit\u0103\u021bi lam\u0103: 13.6-16.6 m\u00b3<\/em><\/p>\n

* * * <\/p>\n

Men\u021biune<\/strong>: Seria World-Class Machinery<\/font><\/a><\/strong> abordeaz\u0103 cele mai grele utilaje aflate \u00een produc\u021bie la momentul scrierii materialelor. \u00cen trecut, industria utilajelor a cunoscut produse ce dep\u0103\u0219esc modelele actuale \u00een dimensiuni \u0219i specifica\u021bii. Unele au intrat \u00een exploatare, dar \u0219i-au \u00eencheiat ciclul de via\u021b\u0103, altele au r\u0103mas tentative de pionierat \u00een industrie. <\/em><\/p>\n

\"Cele<\/p>\n

\nACCO Superdozer<\/strong>
\nSuper-buldozerul ACCO r\u0103m\u00e2ne cel mai mare \u0219i mai puternic buldozer pe \u0219enile construit vreodat\u0103. A fost construit \u00een Portogruaro, \u00een nordul Italiei, de c\u0103tre compania Umberto Acco. Super-buldozerul ACCO a fost construit \u00een principal din piese Caterpillar; cu toate acestea, multe alte componente au fost special adaptate. Lama, de exemplu, este mai mare dec\u00e2t orice a f\u0103cut vreodat\u0103 Caterpillar. Buldozerul are o mas\u0103 brut\u0103 de 183 de tone \u0219i este propulsat de dou\u0103 motoare Caterpillar de 675 hp (503 kW) plasate orizontal opuse, care asigur\u0103 o putere combinat\u0103 de 1.350 hp (1.010 kW). Super-buldozerul are o lam\u0103 de 7,0 m l\u0103\u021bime \u0219i 2,7 m \u00een\u0103l\u021bime, \u00een timp ce lungimea total\u0103 a utilajului este de peste 12 m, de la v\u00e2rful lamei p\u00e2n\u0103 la ripper. Doar ripper-ul are aproximativ 3,0 m \u00een\u0103l\u021bime. ACCO Super Bulldozer a fost construit ini\u021bial pentru a fi exportat \u00een Libia, la \u00eenceputul anilor 1980, \u00eens\u0103 nu a mai fost expediat. <\/p>\n","protected":false},"excerpt":{"rendered":"

Munca grea este l\u0103sat\u0103 mereu \u00een seama utilajelor heavy-duty, motiv pentru care construc\u021bia structurilor de dimensiuni impresionante sau lucrul \u00een mine \u0219i cariere mari impun cerin\u021be pe m\u0103sur\u0103 \u00een ceea<\/p>\n","protected":false},"author":1,"featured_media":21874,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[32,6071,38,6072],"tags":[12057,13115,13116,13117,13112,443,804,104,116,13113,13114],"class_list":["post-21873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-utilaje-de-constructii","category-mining","category-stiri-utilaje-de-constructii-miniere-si-forestiere","category-surface-mining","tag-world-class-machinery","tag-buldozer-cat-d11-xe","tag-buldozer-komatsu-d475a-8","tag-buldozer-shantui-sd90-c5","tag-buldozere-mari","tag-caterpillar","tag-dressta","tag-komatsu","tag-liebherr","tag-seria-de-articole-world-class-machinery","tag-shantui"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["ro","en"],"languages":{"ro":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false}}},"yoast_head":"\nCele mai mari buldozere pe \u0219enile din lume - M. 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