{"id":6122,"date":"2025-09-25T08:00:33","date_gmt":"2025-09-25T01:00:33","guid":{"rendered":"https:\/\/mayxaydunghanoi.com\/?p=6122"},"modified":"2026-03-09T22:24:24","modified_gmt":"2026-03-09T15:24:24","slug":"cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m","status":"publish","type":"post","link":"https:\/\/mayxaydunghanoi.com\/vi\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\/","title":{"rendered":"B\u00e1n c\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3 \u0111\u1eddi 1991, c\u1ea7n 33m"},"content":{"rendered":"<h2>C\u1ea9u x\u00edch Hitachi KH180-3 50 t\u1ea5n n\u0103m 1991 v\u1edbi chi\u1ec1u d\u00e0i c\u1ea7n 33m, t\u1eeb c\u01a1 c\u1ea5u t\u1eddi, h\u1ec7 th\u1ed1ng phanh \u0111\u1ebfn kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf.<\/h2>\n<p>C\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3, \u0111\u1eddi 1991, c\u1ea7n 33m l\u00e0 m\u1ed9t trong nh\u1eefng d\u00f2ng thi\u1ebft b\u1ecb c\u00f4ng tr\u00ecnh \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng l\u00e0m vi\u1ec7c \u1ed5n \u0111\u1ecbnh t\u1ea1i nhi\u1ec1u c\u00f4ng tr\u01b0\u1eddng l\u1edbn nh\u1ecf \u1edf Vi\u1ec7t Nam. \u0110\u1eb7c bi\u1ec7t, v\u1edbi thi\u1ebft k\u1ebf c\u01a1 kh\u00ed \u2013 th\u1ee7y l\u1ef1c song song, h\u1ec7 th\u1ed1ng t\u1eddi n\u00e2ng \u0111\u1ed9c l\u1eadp, c\u00f9ng khung c\u1ea7n ch\u1ecbu l\u1ef1c cao, \u0111\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady cho c\u00e1c c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng, c\u1ea7u \u0111\u01b0\u1eddng hay c\u00f4ng tr\u00ecnh ven s\u00f4ng c\u1ea7n c\u1ea9u x\u00edch ch\u1ecbu t\u1ea3i l\u1edbn.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-6126\" src=\"https:\/\/mayxaydunghanoi.com\/wp-content\/uploads\/2025\/09\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m.jpg\" alt=\"Bentonite \u1ea4n \u0110\u1ed9 trong thi c\u00f4ng khoan c\u1ecdc nh\u1ed3i \u2013 Gi\u1ea3i ph\u00e1p h\u1ed7 tr\u1ee3 gi\u1eef \u1ed5n \u0111\u1ecbnh h\u1ed1 khoan hi\u1ec7u qu\u1ea3\" width=\"800\" height=\"600\" \/><\/p>\n<p>Trong b\u00e0i vi\u1ebft n\u00e0y, Hanoi Vietnam s\u1ebd ph\u00e2n t\u00edch s\u00e2u c\u00e1c kh\u00eda c\u1ea1nh k\u1ef9 thu\u1eadt, c\u00f4ng n\u0103ng th\u1ef1c t\u1ebf, chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 so s\u00e1nh v\u1edbi c\u00e1c d\u00f2ng m\u00e1y x\u00fac l\u1eadt kh\u00e1c, t\u1eeb \u0111\u00f3 gi\u00fap k\u1ef9 s\u01b0 v\u00e0 ch\u1ee7 \u0111\u1ea7u t\u01b0 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh \u0111\u00fang \u0111\u1eafn.<\/p>\n<h3>H\u1ec7 th\u1ed1ng t\u1eddi n\u00e2ng: \u0110\u1ed9ng c\u01a1 \u0111\u1ed9c l\u1eadp, hi\u1ec7u su\u1ea5t linh ho\u1ea1t<\/h3>\n<p>M\u1ed9t \u0111i\u1ec3m m\u1ea1nh n\u1ed5i b\u1eadt c\u1ee7a KH180-3 ch\u00ednh l\u00e0 <strong>c\u01a1 c\u1ea5u n\u00e2ng ch\u00ednh v\u00e0 ph\u1ee5 \u0111\u1ec1u \u0111\u01b0\u1ee3c d\u1eabn \u0111\u1ed9ng ri\u00eang bi\u1ec7t b\u1eb1ng \u0111\u1ed9ng c\u01a1 piston h\u01b0\u1edbng tr\u1ee5c<\/strong>. Lo\u1ea1i \u0111\u1ed9ng c\u01a1 n\u00e0y s\u1eed d\u1ee5ng thi\u1ebft k\u1ebf \u0111\u0129a nghi\u00eang, cho ph\u00e9p truy\u1ec1n \u0111\u1ed9ng qua <strong>h\u1ed9p s\u1ed1 gi\u1ea3m t\u1ed1c<\/strong>, t\u1ea1o m\u00f4-men l\u1edbn gi\u00fap vi\u1ec7c n\u00e2ng h\u1ea1 t\u1ea3i tr\u1edf n\u00ean m\u01b0\u1ee3t m\u00e0 v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>Vi\u1ec7c n\u00e2ng\/h\u1ea1 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i chi\u1ec1u quay \u0111\u1ed9ng c\u01a1, trong khi h\u1ec7 th\u1ed1ng <strong>phanh th\u1ee7y l\u1ef1c \u0111\u1ea3m b\u1ea3o d\u1eebng t\u1ea3i ch\u00ednh x\u00e1c v\u00e0 \u00eam \u00e1i<\/strong>, nh\u1ea5t l\u00e0 khi h\u1ea1 t\u1ea3i t\u1eeb \u0111\u1ed9 cao l\u1edbn. C\u1ea7n g\u1ea1t \u0111i\u1ec1u khi\u1ec3n duy nh\u1ea5t c\u00f3 2 ch\u1ebf \u0111\u1ed9 t\u1ed1c \u0111\u1ed9 (cao \u2013 th\u1ea5p), v\u00e0 <strong>t\u1ed1c \u0111\u1ed9 n\u00e2ng\/h\u1ea1 t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi h\u00e0nh tr\u00ecnh c\u1ea7n g\u1ea1t<\/strong>, \u0111i\u1ec1u n\u00e0y mang l\u1ea1i kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n m\u01b0\u1ee3t theo c\u1ea3m gi\u00e1c v\u1eadn h\u00e0nh.<\/p>\n<p><strong>T\u1eddi ch\u00ednh v\u00e0 t\u1eddi ph\u1ee5 c\u00f3 th\u1ec3 l\u1eafp s\u1eb5n \u0111\u1ed9ng c\u01a1 k\u00e9o<\/strong>, h\u1ed7 tr\u1ee3 n\u00e2ng h\u1ea1 nhanh v\u00e0 hi\u1ec7u qu\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n c\u00f4ng tr\u01b0\u1eddng y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 thi c\u00f4ng.<\/p>\n<h3>H\u1ec7 th\u1ed1ng ly h\u1ee3p v\u00e0 phanh c\u01a1 h\u1ecdc: \u0110\u1ea3m b\u1ea3o an to\u00e0n v\u1eadn h\u00e0nh li\u00ean t\u1ee5c<\/h3>\n<p>KH180-3 s\u1eed d\u1ee5ng <strong>ly h\u1ee3p ki\u1ec3u l\u00f2 xo \u2013 d\u1ea3i ma s\u00e1t gi\u00e3n n\u1edf trong<\/strong>, \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t v\u00e0 gi\u1ea3i ph\u00f3ng b\u1eb1ng th\u1ee7y l\u1ef1c. Thi\u1ebft k\u1ebf n\u00e0y mang l\u1ea1i kh\u1ea3 n\u0103ng <strong>chuy\u1ec3n m\u1ea1ch \u00eam<\/strong>, ch\u1ed1ng tr\u01b0\u1ee3t t\u1ed1t v\u00e0 h\u1ea1n ch\u1ebf m\u00e0i m\u00f2n.<\/p>\n<p>B\u1ed9 ly h\u1ee3p ch\u00ednh v\u00e0 ph\u1ee5 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ed3ng nh\u1ea5t, gi\u00fap vi\u1ec7c thay th\u1ebf l\u1edbp l\u00f3t d\u1ec5 d\u00e0ng, <strong>c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau<\/strong> m\u00e0 kh\u00f4ng c\u1ea7n can thi\u1ec7p c\u01a1 kh\u00ed s\u00e2u.<\/p>\n<p>V\u1ec1 phanh, m\u00e1y trang b\u1ecb <strong>phanh c\u01a1 h\u1ecdc d\u1ea1ng ma s\u00e1t co ngo\u00e0i<\/strong>, ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 \u1edf t\u1ea3i tr\u1ecdng ti\u00eau chu\u1ea9n. \u0110\u1eb7c bi\u1ec7t, v\u1edbi t\u1ea3i n\u1eb7ng h\u01a1n, <strong>b\u1ed9 t\u0103ng \u00e1p b\u1eb1ng l\u00f2 xo s\u1ebd t\u1ef1 \u0111\u1ed9ng h\u1ed7 tr\u1ee3 l\u1ef1c phanh<\/strong>, gi\u1ea3m nguy c\u01a1 m\u1ecfi phanh trong th\u1eddi gian v\u1eadn h\u00e0nh d\u00e0i.<\/p>\n<p>Ngo\u00e0i ra, <strong>phanh th\u1ee7y l\u1ef1c v\u00e0 phanh t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p cho c\u1ea7n n\u00e2ng khi \u1edf v\u1ecb tr\u00ed trung gian<\/strong>, ng\u0103n ch\u1eb7n t\u1ed1i \u0111a hi\u1ec7n t\u01b0\u1ee3ng t\u1ee5t c\u1ea7n khi d\u1eebng m\u00e1y gi\u1eefa ch\u1eebng.<\/p>\n<h3>Tang t\u1eddi v\u00e0 kh\u00f3a tang: K\u1ebft c\u1ea5u ch\u1eafc ch\u1eafn, v\u1eadn h\u00e0nh m\u01b0\u1ee3t<\/h3>\n<p>Tang tr\u1ed1ng t\u1eddi ch\u00ednh v\u00e0 ph\u1ee5 \u0111\u01b0\u1ee3c gia c\u00f4ng b\u1eb1ng <strong>gang h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t<\/strong>, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n cao, ch\u1ed1ng m\u00e0i m\u00f2n do ti\u1ebfp x\u00fac d\u00e2y c\u00e1p th\u00e9p trong th\u1eddi gian d\u00e0i. C\u1ea3 hai tang \u0111\u1ec1u l\u1eafp tr\u00ean <strong>\u1ed5 bi ch\u1ed1ng ma s\u00e1t, b\u00f4i tr\u01a1n tr\u1ecdn \u0111\u1eddi<\/strong>, gi\u1ea3m thi\u1ec3u chi ph\u00ed b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3.<\/p>\n<p>H\u1ec7 th\u1ed1ng <strong>kh\u00f3a tang tr\u1ed1ng d\u1ea1ng ch\u1ed1t th\u1ee7 c\u00f4ng<\/strong>, \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c ti\u1ebfp t\u1eeb gh\u1ebf ng\u1ed3i c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh, gi\u00fap <strong>kh\u00f3a ho\u00e0n to\u00e0n tang tr\u1ed1ng khi c\u1ea7n c\u1ed1 \u0111\u1ecbnh t\u1ea3i ho\u1eb7c b\u1ea3o d\u01b0\u1ee1ng<\/strong>. \u0110\u00e2y l\u00e0 chi ti\u1ebft quan tr\u1ecdng gi\u00fap c\u1ea9u Hitachi KH180-3 an to\u00e0n h\u01a1n trong c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ea7n gi\u1eef t\u1ea3i gi\u1eefa kh\u00f4ng trung ho\u1eb7c chuy\u1ec3n h\u01b0\u1edbng l\u00e0m vi\u1ec7c.<\/p>\n<h3>C\u01a1 ch\u1ebf n\u00e2ng h\u1ea1 c\u1ea7n c\u1ea9u: \u0110\u1ed9c l\u1eadp, d\u1eebng t\u1ee9c th\u00ec<\/h3>\n<p>C\u1ea7n c\u1ea9u ch\u00ednh \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi m\u1ed9t <strong>\u0111\u1ed9ng c\u01a1 tr\u1ee5c cong \u0111\u1ed9c l\u1eadp<\/strong>, cho ph\u00e9p n\u00e2ng\/h\u1ea1 c\u1ea7n b\u1eb1ng c\u00e1ch quay \u0111\u1ed9ng c\u01a1 thu\u1eadn\/ng\u01b0\u1ee3c. C\u1ea7n tr\u1ee5c c\u00f3 th\u1ec3 h\u1ea1 nhanh th\u00f4ng qua <strong>ch\u1ebf \u0111\u1ed9 h\u1ea1 b\u1eb1ng \u0111i\u1ec7n qua h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c<\/strong>.<\/p>\n<p><strong>Phanh th\u1ee7y l\u1ef1c v\u00e0 phanh \u0111\u0129a nhi\u1ec1u l\u1edbp l\u00f2 xo \u2013 nh\u1ea3 th\u1ee7y l\u1ef1c<\/strong> gi\u00fap c\u1ea7n tr\u1ee5c d\u1eebng ngay l\u1eadp t\u1ee9c m\u00e0 kh\u00f4ng gi\u1eadt, \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi n\u00e2ng d\u1ea7m l\u1edbn ho\u1eb7c di chuy\u1ec3n trong kh\u00f4ng gian h\u1eb9p.<\/p>\n<p>Khi c\u1ea7n tr\u1ee5c \u1edf v\u1ecb tr\u00ed trung gian, <strong>phanh s\u1ebd t\u1ef1 \u0111\u1ed9ng k\u00edch ho\u1ea1t<\/strong>, \u0111\u1ea3m b\u1ea3o an to\u00e0n tuy\u1ec7t \u0111\u1ed1i khi thao t\u00e1c l\u1eafp d\u1ef1ng.<\/p>\n<h3>C\u01a1 c\u1ea5u quay toa: M\u01b0\u1ee3t m\u00e0, \u0111i\u1ec1u khi\u1ec3n linh ho\u1ea1t<\/h3>\n<p>Kh\u1ea3 n\u0103ng quay toa c\u1ee7a KH180-3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao nh\u1edd <strong>\u0111\u1ed9ng c\u01a1 piston m\u00f4-men xo\u1eafn cao truy\u1ec1n \u0111\u1ed9ng qua h\u1ed9p gi\u1ea3m t\u1ed1c<\/strong>, cho ph\u00e9p thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 quay <strong>li\u00ean t\u1ee5c t\u1eeb 0 \u0111\u1ebfn t\u1ed1i \u0111a<\/strong>, ch\u1ec9 b\u1eb1ng m\u1ed9t l\u1ea7n g\u1ea1t c\u1ea7n \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<p><strong>Phanh quay l\u00e0 lo\u1ea1i phanh \u0111\u0129a k\u00edch ho\u1ea1t th\u1ee7y l\u1ef1c<\/strong>, \u0111i\u1ec1u khi\u1ec3n th\u00f4ng qua c\u00f4ng t\u1eafc g\u1ea1t tr\u00ean c\u1ea7n \u0111i\u1ec1u khi\u1ec3n. \u0110\u1eb7c bi\u1ec7t, <strong>kh\u00f3a quay c\u01a1 h\u1ecdc b\u1eb1ng tay<\/strong> gi\u00fap c\u1ed1 \u0111\u1ecbnh th\u00e2n c\u1ea9u an to\u00e0n trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n ho\u1eb7c neo \u0111\u1eadu t\u1ea1m th\u1eddi.<\/p>\n<p>C\u1ea5u tr\u00fac <strong>v\u00f2ng bi tr\u01b0\u1ee3t d\u1ea1ng v\u00f2ng xoay<\/strong>, r\u0103ng trong \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t gi\u00fap c\u1ea9u c\u00f3 th\u1ec3 quay t\u1ea3i l\u1edbn m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 m\u01b0\u1ee3t v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n<h3>C\u1ea5u tr\u00fac c\u1ea7n: \u1ed0ng th\u00e9p si\u00eau b\u1ec1n, thi\u1ebft k\u1ebf l\u01b0\u1edbi \u1ed5n \u0111\u1ecbnh<\/h3>\n<p>C\u1ea7n c\u1ea9u c\u1ee7a KH180-3 c\u00f3 d\u1ea1ng <strong>\u1ed1ng th\u00e9p h\u00ecnh tr\u1ee5<\/strong>, \u0111\u01b0\u1eddng k\u00ednh 1300 mm, k\u1ebft c\u1ea5u d\u1ea1ng l\u01b0\u1edbi v\u1edbi <strong>\u0111\u1ed9 s\u00e2u 1300 mm t\u1ea1i \u0111i\u1ec3m k\u1ebft n\u1ed1i<\/strong>, t\u1ea1o n\u00ean \u0111\u1ed9 c\u1ee9ng v\u1eefng v\u00e0 ch\u1ed1ng xo\u1eafn t\u1ed1t khi v\u01b0\u01a1n t\u1ea3i l\u1edbn.<\/p>\n<p>To\u00e0n b\u1ed9 c\u1ea7n s\u1eed d\u1ee5ng <strong>v\u1eadt li\u1ec7u th\u00e9p \u1ed1ng ch\u1ecbu l\u1ef1c cao<\/strong>, c\u00f3 th\u1ec3 th\u00e1o \u2013 l\u1eafp module linh ho\u1ea1t, gi\u00fap r\u00fat ng\u1eafn th\u1eddi gian c\u00e0i \u0111\u1eb7t v\u00e0 v\u1eadn chuy\u1ec3n gi\u1eefa c\u00e1c c\u00f4ng tr\u00ecnh.<\/p>\n<h3>M\u1ed9t s\u1ed1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ti\u00eau bi\u1ec3u c\u1ee7a Hitachi KH180-3<\/h3>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>H\u1ea1ng m\u1ee5c<\/th>\n<th>Th\u00f4ng s\u1ed1<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>S\u1ee9c n\u00e2ng \u0111\u1ecbnh m\u1ee9c<\/td>\n<td>50 t\u1ea5n t\u1ea1i 3,7 m<\/td>\n<\/tr>\n<tr>\n<td>Chi\u1ec1u d\u00e0i c\u1ea7n ch\u00ednh<\/td>\n<td>33 m<\/td>\n<\/tr>\n<tr>\n<td>H\u1ec7 th\u1ed1ng n\u00e2ng<\/td>\n<td>\u0110\u1ed9ng c\u01a1 piston \u0111\u1ed9c l\u1eadp, phanh th\u1ee7y l\u1ef1c<\/td>\n<\/tr>\n<tr>\n<td>C\u01a1 c\u1ea5u quay<\/td>\n<td>\u0110\u1ed9ng c\u01a1 xo\u1eafn cao + h\u1ed9p s\u1ed1 gi\u1ea3m t\u1ed1c<\/td>\n<\/tr>\n<tr>\n<td>Phanh<\/td>\n<td>Th\u1ee7y l\u1ef1c \u2013 c\u01a1 h\u1ecdc \u2013 t\u1ef1 \u0111\u1ed9ng<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea7n ch\u00ednh<\/td>\n<td>D\u1ea1ng \u1ed1ng, k\u1ebft c\u1ea5u l\u01b0\u1edbi, th\u00e9p ch\u1ecbu l\u1ef1c<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00f3a c\u01a1 kh\u00ed<\/td>\n<td>Trang b\u1ecb \u0111\u1ea7y \u0111\u1ee7 cho t\u1eddi, c\u1ea7n v\u00e0 quay toa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>K\u1ebft lu\u1eadn<\/h3>\n<ul>\n<li><strong>C\u1ea9u x\u00edch Hitachi KH180-3<\/strong> l\u00e0 d\u00f2ng c\u1ea9u 50 t\u1ea5n c\u00f3 c\u1ea5u h\u00ecnh m\u1ea1nh, thi\u1ebft k\u1ebf ch\u1eafc ch\u1eafn, v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh.<\/li>\n<li>Trang b\u1ecb <strong>t\u1eddi \u0111\u1ed9c l\u1eadp, phanh \u0111a t\u1ea7ng, kh\u00f3a c\u01a1 kh\u00ed \u0111\u1ea7y \u0111\u1ee7<\/strong> gi\u00fap \u0111\u1ea3m b\u1ea3o an to\u00e0n tuy\u1ec7t \u0111\u1ed1i khi thi c\u00f4ng.<\/li>\n<li>C\u1ea7n l\u01b0\u1edbi ch\u1ecbu l\u1ef1c cao, v\u00f2ng xoay m\u01b0\u1ee3t, ph\u00f9 h\u1ee3p cho <strong>c\u00e1c c\u00f4ng tr\u00ecnh l\u1edbn c\u1ea7n \u0111\u1ed9 tin c\u1eady cao<\/strong>.<\/li>\n<\/ul>\n<p>M\u00e1y c\u00f3 s\u1eb5n, v\u1eadn h\u00e0nh t\u1ed1t \u2013 <strong>li\u00ean h\u1ec7 Th\u00f9y Linh 0899601755<\/strong> \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n gi\u00e1 v\u00e0 xem m\u00e1y th\u1ef1c t\u1ebf.<\/p>\n<h3>H\u00ecnh \u1ea3nh C\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3 \u0111\u1eddi 1991<\/h3>\n\n    <style>\n        \/* D\u00f9ng !important \u0111\u1ec3 tr\u00e1nh b\u1ecb Theme ghi \u0111\u00e8 *\/\n        .usg-grid { \n            display: grid !important; \n            grid-template-columns: repeat(2, 1fr) !important; \n            gap: 15px !important; \n            margin: 20px 0 !important; \n            width: 100% !important;\n        }\n        .usg-item { \n            position: relative; \n            cursor: pointer; \n            overflow: hidden; \n            border-radius: 8px; \n            aspect-ratio: 4\/3; \n            background: #f0f0f0; \n        }\n        .usg-item img { \n            width: 100% !important; \n            height: 100% !important; \n            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onclick=\"usgOpen('https:\/\/mayxaydunghanoi.com\/wp-content\/uploads\/2025\/09\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m-11.jpg', 'usg-gal-52851')\">\n                <img decoding=\"async\" src=\"https:\/\/mayxaydunghanoi.com\/wp-content\/uploads\/2025\/09\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m-11.jpg\" \n                     alt=\"Bentonite \u1ea4n \u0110\u1ed9 trong thi c\u00f4ng khoan c\u1ecdc nh\u1ed3i \u2013 Gi\u1ea3i ph\u00e1p h\u1ed7 tr\u1ee3 gi\u1eef \u1ed5n \u0111\u1ecbnh h\u1ed1 khoan hi\u1ec7u qu\u1ea3\"\n                     data-full=\"https:\/\/mayxaydunghanoi.com\/wp-content\/uploads\/2025\/09\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m-11.jpg\" \n                     data-cap=\"\"\n                     class=\"usg-data\">\n            <\/div>\n            <\/div>\n\n    \n    \n","protected":false},"excerpt":{"rendered":"<p>C\u1ea9u x\u00edch Hitachi KH180-3 50 t\u1ea5n n\u0103m 1991 v\u1edbi chi\u1ec1u d\u00e0i c\u1ea7n 33m, t\u1eeb c\u01a1 c\u1ea5u t\u1eddi, h\u1ec7 th\u1ed1ng phanh \u0111\u1ebfn kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf. C\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3, \u0111\u1eddi 1991, c\u1ea7n 33m l\u00e0 m\u1ed9t trong nh\u1eefng d\u00f2ng thi\u1ebft b\u1ecb c\u00f4ng tr\u00ecnh \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng l\u00e0m vi\u1ec7c \u1ed5n \u0111\u1ecbnh t\u1ea1i nhi\u1ec1u c\u00f4ng tr\u01b0\u1eddng l\u1edbn nh\u1ecf \u1edf Vi\u1ec7t Nam. \u0110\u1eb7c bi\u1ec7t,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":8241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[515],"tags":[],"class_list":["post-6122","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ban-tin"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>B\u00e1n c\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3 \u0111\u1eddi 1991, c\u1ea7n 33m - Hanoi Vietnam Co., Ltd<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mayxaydunghanoi.com\/vi\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"B\u00e1n c\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3 \u0111\u1eddi 1991, c\u1ea7n 33m\" \/>\n<meta property=\"og:description\" content=\"C\u1ea9u x\u00edch Hitachi KH180-3 50 t\u1ea5n n\u0103m 1991 v\u1edbi chi\u1ec1u d\u00e0i c\u1ea7n 33m, t\u1eeb c\u01a1 c\u1ea5u t\u1eddi, h\u1ec7 th\u1ed1ng phanh \u0111\u1ebfn kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf. C\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3, \u0111\u1eddi 1991, c\u1ea7n 33m l\u00e0 m\u1ed9t trong nh\u1eefng d\u00f2ng thi\u1ebft b\u1ecb c\u00f4ng tr\u00ecnh \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng l\u00e0m vi\u1ec7c \u1ed5n \u0111\u1ecbnh t\u1ea1i nhi\u1ec1u c\u00f4ng tr\u01b0\u1eddng l\u1edbn nh\u1ecf \u1edf Vi\u1ec7t Nam. \u0110\u1eb7c bi\u1ec7t,...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mayxaydunghanoi.com\/vi\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\/\" \/>\n<meta property=\"og:site_name\" content=\"Hanoi Vietnam Co., Ltd\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-25T01:00:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-09T15:24:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mayxaydunghanoi.com\/wp-content\/uploads\/2025\/09\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"hanoivietnam\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"hanoivietnam\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/vi\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/vi\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\\\/\"},\"author\":{\"name\":\"hanoivietnam\",\"@id\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/en\\\/#\\\/schema\\\/person\\\/670c4aecaf19a51b8d63e3588557814a\"},\"headline\":\"B\u00e1n c\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3 \u0111\u1eddi 1991, c\u1ea7n 33m\",\"datePublished\":\"2025-09-25T01:00:33+00:00\",\"dateModified\":\"2026-03-09T15:24:24+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/vi\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\\\/\"},\"wordCount\":1811,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/vi\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m.jpg\",\"articleSection\":[\"B\u1ea3n tin\"],\"inLanguage\":\"vi-VN\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/mayxaydunghanoi.com\\\/vi\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/vi\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\\\/\",\"url\":\"https:\\\/\\\/mayxaydunghanoi.com\\\/vi\\\/cau-xich-hitachi-50-tan-kh180-3-doi-1991-can-33m\\\/\",\"name\":\"B\u00e1n c\u1ea9u x\u00edch Hitachi 50 t\u1ea5n KH180-3 \u0111\u1eddi 1991, c\u1ea7n 33m - 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