{"id":5215,"date":"2026-07-12T01:20:21","date_gmt":"2026-07-12T01:20:21","guid":{"rendered":"https:\/\/wolorin.com\/?p=5215"},"modified":"2026-07-22T03:28:09","modified_gmt":"2026-07-22T03:28:09","slug":"corrugated-board-crush-problems","status":"publish","type":"post","link":"https:\/\/wolorin.com\/es\/blog\/corrugated-board-crush-problems\/","title":{"rendered":"Problemas de aplastamiento del cart\u00f3n corrugado: p\u00e9rdida de calibre, da\u00f1os en las ondulaciones y marcas de presi\u00f3n."},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5215\" class=\"elementor elementor-5215\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6986404e e-flex e-con-boxed e-con e-parent\" data-id=\"6986404e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2f4704e9 e-con-full translation-block e-flex e-con e-child\" data-id=\"2f4704e9\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-7555f313 e-con-full e-flex e-con e-child\" data-id=\"7555f313\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-45cfb954 elementor-widget elementor-widget-heading\" data-id=\"45cfb954\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Corrugated Board Crush Problems: Caliper Loss, Flute Damage, and Pressure Marks<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d9fb01d e-con-full e-flex e-con e-child\" data-id=\"d9fb01d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-72973291 e-con-full e-flex e-con e-child\" data-id=\"72973291\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4dba50cb elementor-widget elementor-widget-text-editor\" data-id=\"4dba50cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"isSelectedEnd\">Corrugated board crush usually starts as a very practical production problem. The sheet feels softer than normal. The board caliper is lower after one section. A straight pressure band appears across the width. When the board is cut open, the flute profile looks lower or partly flattened.<\/p><p class=\"isSelectedEnd\">The best first move is to follow the board through the line. Take a board before the suspected area, another board after it, and one more after the next downstream section. Keep the machine direction and left-center-right positions clear. The point where caliper first drops usually tells more than the final stack sample.<\/p><p>After that point is found, the check becomes more focused. Board grade, paper moisture, flute structure, nip load, roll gap, roll parallelism, feeder pressure, printing contact, and roller condition can be reviewed around the right section instead of being guessed from the finished board.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3d4ed3da e-con-full e-flex e-con e-child\" data-id=\"3d4ed3da\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ec4c47 elementor-widget elementor-widget-image\" data-id=\"3ec4c47\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/wolorin.com\/wp-content\/uploads\/2026\/07\/Cardboard-Sheet-Production-Line.webp\" class=\"attachment-large size-large wp-image-5208\" alt=\"Stacked cardboard sheets moving through a cardboard production line\" srcset=\"https:\/\/wolorin.com\/wp-content\/uploads\/2026\/07\/Cardboard-Sheet-Production-Line.webp 800w, https:\/\/wolorin.com\/wp-content\/uploads\/2026\/07\/Cardboard-Sheet-Production-Line-300x225.webp 300w, https:\/\/wolorin.com\/wp-content\/uploads\/2026\/07\/Cardboard-Sheet-Production-Line-768x576.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"  title=\"Corrugated Board Crush Problems: Caliper Loss, Flute Damage, and Pressure Marks\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4c1653c6 e-flex e-con-boxed e-con e-parent\" data-id=\"4c1653c6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-64b7da0d elementor-widget elementor-widget-html\" data-id=\"64b7da0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-a057-block-1\">\r\n  <style>\r\n    .wolorin-a057-block-1 {\r\n      --w-blue: #142846;\r\n      --w-yellow: #f4b938;\r\n      --w-link: #1f5ea8;\r\n      --w-text: #263241;\r\n      --w-border: #dfe5ec;\r\n      --w-soft: #f6f8fb;\r\n      font-family: Arial, Helvetica, sans-serif;\r\n      color: var(--w-text);\r\n      padding: 32px 18px;\r\n    }\r\n    .wolorin-a057-block-1 .wrap {\r\n      max-width: 1040px;\r\n      margin: 0 auto;\r\n    }\r\n    .wolorin-a057-block-1 .section-card {\r\n      background: #ffffff;\r\n      border: 1px solid var(--w-border);\r\n      box-shadow: 0 10px 28px rgba(20, 40, 70, 0.07);\r\n      border-radius: 16px;\r\n      padding: 28px 30px;\r\n      margin-bottom: 28px;\r\n    }\r\n    .wolorin-a057-block-1 .section-card:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-1 h2 {\r\n      position: relative;\r\n      margin: 0 0 20px;\r\n      padding-left: 16px;\r\n      color: var(--w-blue);\r\n      font-size: 30px;\r\n      line-height: 1.24;\r\n      font-weight: 740;\r\n      letter-spacing: -0.01em;\r\n    }\r\n    .wolorin-a057-block-1 h2::before {\r\n      content: \"\";\r\n      position: absolute;\r\n      left: 0;\r\n      top: 5px;\r\n      width: 5px;\r\n      height: calc(100% - 10px);\r\n      background: var(--w-yellow);\r\n      border-radius: 4px;\r\n    }\r\n    .wolorin-a057-block-1 p {\r\n      margin: 0 0 17px;\r\n      font-size: 16.5px;\r\n      line-height: 1.76;\r\n      color: var(--w-text);\r\n    }\r\n    .wolorin-a057-block-1 p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-1 a {\r\n      color: var(--w-link);\r\n      text-decoration: none;\r\n      font-weight: 700;\r\n      transition: color 0.18s ease;\r\n    }\r\n    .wolorin-a057-block-1 a:hover {\r\n      color: var(--w-yellow);\r\n    }\r\n    .wolorin-a057-block-1 .table-scroll {\r\n      overflow-x: auto;\r\n      width: 100%;\r\n      margin: 22px 0 22px;\r\n    }\r\n    .wolorin-a057-block-1 table {\r\n      width: 100%;\r\n      min-width: 680px;\r\n      border-collapse: collapse;\r\n      border: 1px solid var(--w-border);\r\n      font-size: 15.5px;\r\n      line-height: 1.55;\r\n      color: var(--w-text);\r\n      margin: 0;\r\n    }\r\n    .wolorin-a057-block-1 th {\r\n      background: var(--w-blue);\r\n      color: #ffffff;\r\n      text-align: left;\r\n      padding: 14px 16px;\r\n      border: 1px solid var(--w-blue);\r\n      font-weight: 700;\r\n    }\r\n    .wolorin-a057-block-1 td {\r\n      padding: 14px 16px;\r\n      border: 1px solid var(--w-border);\r\n      vertical-align: top;\r\n      background: #ffffff;\r\n    }\r\n    .wolorin-a057-block-1 tr:nth-child(even) td {\r\n      background: var(--w-soft);\r\n    }\r\n    @media (max-width: 768px) {\r\n      .wolorin-a057-block-1 {\r\n        padding: 24px 14px;\r\n      }\r\n      .wolorin-a057-block-1 .section-card {\r\n        padding: 22px 20px;\r\n        border-radius: 14px;\r\n      }\r\n      .wolorin-a057-block-1 h2 {\r\n        font-size: 24px;\r\n        padding-left: 14px;\r\n      }\r\n      .wolorin-a057-block-1 p {\r\n        font-size: 16px;\r\n        line-height: 1.72;\r\n      }\r\n      .wolorin-a057-block-1 table {\r\n        font-size: 15px;\r\n      }\r\n    }\r\n  <\/style>\r\n\r\n  <div class=\"wrap\">\r\n    <div class=\"section-card translation-block\">\r\n      <h2>Read the Board Section Before Adjusting the Line<\/h2>\r\n\r\n      <p>A surface mark can look serious while the board structure is still intact. A crushed flute can also hide under a light surface mark. Cutting the board gives a faster answer than looking from the top.<\/p>\r\n\r\n      <p>Take one piece from the marked area and one piece from a normal area of the same run. Cut through both pieces and compare the flute shape. If the flute arches are still open and the caliper is close to normal, the problem may be closer to surface contact, printing, coating, belt contact, or handling. If the flute has lost height and the board is thinner, the board has been compressed.<\/p>\r\n\r\n      <p>This section check is especially useful when the board feels soft but the visible mark is light. In that case, the surface may not look dramatic, but the internal structure may already be damaged.<\/p>\r\n\r\n      <div class=\"table-scroll\">\r\n        <table>\r\n          <thead>\r\n            <tr>\r\n              <th>What You See in the Board<\/th>\r\n              <th>What It Usually Points To<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr>\r\n              <td>Lower caliper with flattened flutes<\/td>\r\n              <td>Structural crush or flute damage<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Normal caliper with a surface line<\/td>\r\n              <td>Surface mark, print mark, belt mark, or handling mark<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Liner separating from the medium<\/td>\r\n              <td>Glue or bonding direction<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>One side lower than the other<\/td>\r\n              <td>Cross-width pressure or board variation<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Similar mark repeating at fixed spacing<\/td>\r\n              <td>Roller, belt, feeder, or other repeated contact<\/td>\r\n            <\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"section-card translation-block\">\r\n      <h2>The Board May Have Less Pressure Margin Than Before<\/h2>\r\n\r\n      <p>A pressure setting can stay the same while the board becomes easier to crush. This is common after a board grade change, paper batch change, flute type change, humidity change, or speed change.<\/p>\r\n\r\n      <p>Lighter board structures usually have less margin against compression. A different flute height or flute spacing can change how the board reacts under the same contact load. Paper moisture also changes the result quickly. Dry board can become less forgiving under pressure. High or uneven moisture can let the structure compress more easily. When one edge crushes faster than the other, both cross-width moisture and cross-width pressure deserve attention.<\/p>\r\n\r\n      <p>This is where many lines lose time. The visible problem appears after a nip or feeder, so pressure gets adjusted first. The setting may be part of the problem, but the trigger may have started with the board condition. Compare the current order with the last stable order before making large changes.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3b72888 e-flex e-con-boxed e-con e-parent\" data-id=\"3b72888\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-72c8f3b elementor-widget elementor-widget-html\" data-id=\"72c8f3b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-a057-block-2\">\r\n  <style>\r\n    .wolorin-a057-block-2 {\r\n      --w-blue: #142846;\r\n      --w-yellow: #f4b938;\r\n      --w-link: #1f5ea8;\r\n      --w-text: #263241;\r\n      --w-border: #dfe5ec;\r\n      font-family: Arial, Helvetica, sans-serif;\r\n      color: var(--w-text);\r\n      padding: 32px 18px;\r\n    }\r\n    .wolorin-a057-block-2 .wrap {\r\n      max-width: 1040px;\r\n      margin: 0 auto;\r\n    }\r\n    .wolorin-a057-block-2 .section-card {\r\n      background: #ffffff;\r\n      border: 1px solid var(--w-border);\r\n      box-shadow: 0 10px 28px rgba(20, 40, 70, 0.07);\r\n      border-radius: 16px;\r\n      padding: 28px 30px;\r\n      margin-bottom: 28px;\r\n    }\r\n    .wolorin-a057-block-2 .section-card:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-2 h2 {\r\n      position: relative;\r\n      margin: 0 0 20px;\r\n      padding-left: 16px;\r\n      color: var(--w-blue);\r\n      font-size: 30px;\r\n      line-height: 1.24;\r\n      font-weight: 740;\r\n      letter-spacing: -0.01em;\r\n    }\r\n    .wolorin-a057-block-2 h2::before {\r\n      content: \"\";\r\n      position: absolute;\r\n      left: 0;\r\n      top: 5px;\r\n      width: 5px;\r\n      height: calc(100% - 10px);\r\n      background: var(--w-yellow);\r\n      border-radius: 4px;\r\n    }\r\n    .wolorin-a057-block-2 p {\r\n      margin: 0 0 17px;\r\n      font-size: 16.5px;\r\n      line-height: 1.76;\r\n      color: var(--w-text);\r\n    }\r\n    .wolorin-a057-block-2 p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-2 a {\r\n      color: var(--w-link);\r\n      text-decoration: none;\r\n      font-weight: 700;\r\n      transition: color 0.18s ease;\r\n    }\r\n    .wolorin-a057-block-2 a:hover {\r\n      color: var(--w-yellow);\r\n    }\r\n    @media (max-width: 768px) {\r\n      .wolorin-a057-block-2 {\r\n        padding: 24px 14px;\r\n      }\r\n      .wolorin-a057-block-2 .section-card {\r\n        padding: 22px 20px;\r\n        border-radius: 14px;\r\n      }\r\n      .wolorin-a057-block-2 h2 {\r\n        font-size: 24px;\r\n        padding-left: 14px;\r\n      }\r\n      .wolorin-a057-block-2 p {\r\n        font-size: 16px;\r\n        line-height: 1.72;\r\n      }\r\n    }\r\n  <\/style>\r\n\r\n  <div class=\"wrap\">\r\n    <div class=\"section-card\">\r\n      <h2>Follow the Pressure Path Through the Line<\/h2>\r\n\r\n      <p>Corrugated board can be damaged by one heavy pressure point, or by several contact points adding up. The useful path is simple: check where the board is pressed, held, pulled, transferred, printed, or stacked.<\/p>\r\n\r\n      <p>If the board is already thinner before the feeder, the source is earlier. If it is normal before the feeder and lower after the feeder, the feeder area deserves close attention. If the board is normal before printing and shows bands after printing, the print section and its entry contact become the main area to check.<\/p>\r\n\r\n      <p>For paper and board converting positions, <a href=\"https:\/\/wolorin.com\/es\/applications\/paper-converting-rollers\/\">Rodillos para conversi\u00f3n de papel<\/a> can help locate common contact points such as feed, transfer, support, and pressure-related roller positions. The page is useful for orientation, while the crush check still depends on the actual sample sequence from the line.<\/p>\r\n\r\n      <p>A straight band should be matched with a real machine position. Place the sample back in machine direction and compare the band with the roll face, belt edge, feeder wheel, or print contact line. If the mark repeats, measure the distance and compare it with roller circumference, belt cycle, or feeder repeat. This often separates a random handling mark from a repeating contact problem.<\/p>\r\n    <\/div>\r\n\r\n    <div class=\"section-card\">\r\n      <h2>Pressure Rolls Need Real Contact Checks<\/h2>\r\n\r\n      <p>When caliper drops right after a pressure area, the pressure roll, gap, and loading condition should be checked at the same time. Looking only at the pressure number on the panel can mislead the team. The displayed setting may be stable while the real contact is heavier on one side, tighter in the center, or changing during speed fluctuation.<\/p>\r\n\r\n      <p>The contact line across the width matters. A small gap difference can create a clear caliper difference on corrugated board. A roll pair may look parallel when stopped, then behave differently when loaded. Bearing support, shaft fit, mounting condition, roller surface wear, and local surface hardening can all change how pressure reaches the board.<\/p>\r\n\r\n      <p>For pressure-contact positions, <a href=\"https:\/\/wolorin.com\/es\/function\/pressure-rollers\/\">Rodillos de presi\u00f3n<\/a> should be judged by the real pressure they deliver to the board. The roll has to hold or support the sheet, but the flute structure still needs enough room to stay open. When the problem shows one-side pressure, fixed repeat marks, vibration, or uneven contact, <a href=\"https:\/\/wolorin.com\/es\/blog\/roller-runout-misalignment-eccentricity-problems\/\">Rubber Roller Runout and Misalignment<\/a> is also worth checking.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f768041 e-flex e-con-boxed e-con e-parent\" data-id=\"f768041\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-058bd17 elementor-widget elementor-widget-html\" data-id=\"058bd17\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-a057-block-3\">\r\n  <style>\r\n    .wolorin-a057-block-3 {\r\n      --w-blue: #142846;\r\n      --w-yellow: #f4b938;\r\n      --w-link: #1f5ea8;\r\n      --w-text: #263241;\r\n      --w-border: #dfe5ec;\r\n      font-family: Arial, Helvetica, sans-serif;\r\n      color: var(--w-text);\r\n      padding: 32px 18px;\r\n    }\r\n    .wolorin-a057-block-3 .wrap {\r\n      max-width: 1040px;\r\n      margin: 0 auto;\r\n    }\r\n    .wolorin-a057-block-3 .section-card {\r\n      background: #ffffff;\r\n      border: 1px solid var(--w-border);\r\n      box-shadow: 0 10px 28px rgba(20, 40, 70, 0.07);\r\n      border-radius: 16px;\r\n      padding: 28px 30px;\r\n      margin-bottom: 28px;\r\n    }\r\n    .wolorin-a057-block-3 .section-card:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-3 h2 {\r\n      position: relative;\r\n      margin: 0 0 20px;\r\n      padding-left: 16px;\r\n      color: var(--w-blue);\r\n      font-size: 30px;\r\n      line-height: 1.24;\r\n      font-weight: 740;\r\n      letter-spacing: -0.01em;\r\n    }\r\n    .wolorin-a057-block-3 h2::before {\r\n      content: \"\";\r\n      position: absolute;\r\n      left: 0;\r\n      top: 5px;\r\n      width: 5px;\r\n      height: calc(100% - 10px);\r\n      background: var(--w-yellow);\r\n      border-radius: 4px;\r\n    }\r\n    .wolorin-a057-block-3 p {\r\n      margin: 0 0 17px;\r\n      font-size: 16.5px;\r\n      line-height: 1.76;\r\n      color: var(--w-text);\r\n    }\r\n    .wolorin-a057-block-3 p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-3 a {\r\n      color: var(--w-link);\r\n      text-decoration: none;\r\n      font-weight: 700;\r\n      transition: color 0.18s ease;\r\n    }\r\n    .wolorin-a057-block-3 a:hover {\r\n      color: var(--w-yellow);\r\n    }\r\n    @media (max-width: 768px) {\r\n      .wolorin-a057-block-3 {\r\n        padding: 24px 14px;\r\n      }\r\n      .wolorin-a057-block-3 .section-card {\r\n        padding: 22px 20px;\r\n        border-radius: 14px;\r\n      }\r\n      .wolorin-a057-block-3 h2 {\r\n        font-size: 24px;\r\n        padding-left: 14px;\r\n      }\r\n      .wolorin-a057-block-3 p {\r\n        font-size: 16px;\r\n        line-height: 1.72;\r\n      }\r\n    }\r\n  <\/style>\r\n\r\n  <div class=\"wrap\">\r\n    <div class=\"section-card\">\r\n      <h2>Downstream Sections Can Crush a Good Board<\/h2>\r\n\r\n      <p>A board may leave the corrugator with acceptable caliper and lose height later. This happens often around feeding, printing, transfer, hold-down belts, and stacker contact.<\/p>\r\n\r\n      <p>The most common field pattern is pressure added to solve movement. A feeder slips, so contact is tightened. A board hesitates, so pressure is increased. A print section needs steadier registration, so the nip is raised. The board runs more steadily, then flute height is lost.<\/p>\r\n\r\n      <p>This downstream crush is easy to confirm with samples. If the board is normal before the feeder and thinner after it, the feeder contact should be checked. If the pressure band appears only after printing, the print section pressure and entry feeding should be checked. If the final stack shows damage while earlier samples are normal, the issue may belong to stacking or handling pressure.<\/p>\r\n\r\n      <p>Where powered feeding or pulling is involved, grip and pressure should be read together. Poor usable grip can push operators toward higher pressure. That can stabilize board movement and create crush risk at the same time. In these positions, <a href=\"https:\/\/wolorin.com\/es\/function\/drive-rollers\/\">Rodillos motrices<\/a> y <a href=\"https:\/\/wolorin.com\/es\/function\/traction-rollers\/\">Rodillos de tracci\u00f3n<\/a> are relevant because surface grip, speed stability, and contact pressure work together.<\/p>\r\n    <\/div>\r\n\r\n    <div class=\"section-card\">\r\n      <h2>When a Rubber Roller Becomes Relevant<\/h2>\r\n\r\n      <p>Wolorin is a rubber roller manufacturer and custom supplier, so the roller-side discussion should start only when the evidence points to a roller position. The useful signs are practical: caliper loss begins after a rubber-covered pressure or feeding roll; the crush is heavier on one side of the roll face; the mark repeat is close to the roller circumference; the line needs extra pressure because feeding or traction is unstable; the problem started after grinding, re-covering, replacement, or bearing work; or the roller surface shows wear, glazing, contamination, swelling, hardening, cracking, or uneven contact.<\/p>\r\n\r\n      <p>At that stage, the roller review should stay close to manufacturing and replacement facts. Diameter, face length, shaft details, cover hardness, cover thickness, roller position, working load, surface finish, and old roller condition all help narrow the direction. The contact medium around the roller also matters. A dry board-contact position, a dusty paper area, a printed section, and a cleaning-liquid-exposed area may need different rubber cover directions.<\/p>\r\n\r\n      <p>For a standard replacement roller that has worked well for a long time, drawings, sizes, hardness, roller position, and old roller photos may be enough to start. For repeated crush, sensitive board grades, or uneven contact, surface finish, runout, crown, bonding condition, and compound direction may need closer review. If the position needs load support and wear resistance, <a href=\"https:\/\/wolorin.com\/es\/material\/polyurethane-rubber-rollers\/\">Rodillos de caucho de poliuretano<\/a> may be one direction to check, depending on the actual contact condition.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b076ef6 e-flex e-con-boxed e-con e-parent\" data-id=\"b076ef6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fafa424 elementor-widget elementor-widget-html\" data-id=\"fafa424\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-a057-block-4\">\r\n  <style>\r\n    .wolorin-a057-block-4 {\r\n      --w-blue: #142846;\r\n      --w-yellow: #f4b938;\r\n      --w-link: #1f5ea8;\r\n      --w-text: #263241;\r\n      --w-border: #dfe5ec;\r\n      font-family: Arial, Helvetica, sans-serif;\r\n      color: var(--w-text);\r\n      padding: 32px 18px;\r\n    }\r\n    .wolorin-a057-block-4 .wrap {\r\n      max-width: 1040px;\r\n      margin: 0 auto;\r\n    }\r\n    .wolorin-a057-block-4 .section-card {\r\n      background: #ffffff;\r\n      border: 1px solid var(--w-border);\r\n      box-shadow: 0 10px 28px rgba(20, 40, 70, 0.07);\r\n      border-radius: 16px;\r\n      padding: 28px 30px;\r\n      margin-bottom: 28px;\r\n    }\r\n    .wolorin-a057-block-4 .section-card:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-4 h2 {\r\n      position: relative;\r\n      margin: 0 0 20px;\r\n      padding-left: 16px;\r\n      color: var(--w-blue);\r\n      font-size: 30px;\r\n      line-height: 1.24;\r\n      font-weight: 740;\r\n      letter-spacing: -0.01em;\r\n    }\r\n    .wolorin-a057-block-4 h2::before {\r\n      content: \"\";\r\n      position: absolute;\r\n      left: 0;\r\n      top: 5px;\r\n      width: 5px;\r\n      height: calc(100% - 10px);\r\n      background: var(--w-yellow);\r\n      border-radius: 4px;\r\n    }\r\n    .wolorin-a057-block-4 p {\r\n      margin: 0 0 17px;\r\n      font-size: 16.5px;\r\n      line-height: 1.76;\r\n      color: var(--w-text);\r\n    }\r\n    .wolorin-a057-block-4 p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n    .wolorin-a057-block-4 a {\r\n      color: var(--w-link);\r\n      text-decoration: none;\r\n      font-weight: 700;\r\n      transition: color 0.18s ease;\r\n    }\r\n    .wolorin-a057-block-4 a:hover {\r\n      color: var(--w-yellow);\r\n    }\r\n    @media (max-width: 768px) {\r\n      .wolorin-a057-block-4 {\r\n        padding: 24px 14px;\r\n      }\r\n      .wolorin-a057-block-4 .section-card {\r\n        padding: 22px 20px;\r\n        border-radius: 14px;\r\n      }\r\n      .wolorin-a057-block-4 h2 {\r\n        font-size: 24px;\r\n        padding-left: 14px;\r\n      }\r\n      .wolorin-a057-block-4 p {\r\n        font-size: 16px;\r\n        line-height: 1.72;\r\n      }\r\n    }\r\n  <\/style>\r\n\r\n  <div class=\"wrap\">\r\n    <div class=\"section-card\">\r\n      <h2>Keep Glue and Printing Clues in Their Own Lane<\/h2>\r\n\r\n      <p>Crush, glue failure, and printing marks can appear near the same place on a board. The section view helps keep the judgment clean. A crushed board usually shows lower caliper and flattened flute shape. A glue problem usually shows liner and medium separation, weak bonding, or local delamination. A printing or coating mark often follows surface appearance while the board thickness stays close to normal.<\/p>\r\n\r\n      <p>This boundary matters because the corrective action is different. Glue amount, dry spots, squeeze-out, print density, and ink transfer belong in their own process checks. For corrugated board crush, the main evidence should stay on the board height, flute shape, and the contact point where the board first changed.<\/p>\r\n    <\/div>\r\n\r\n    <div class=\"section-card\">\r\n      <h2>What to Record Before Changing a Roller<\/h2>\r\n\r\n      <p>A good record should show whether the issue comes from board condition, pressure setting, machine alignment, downstream contact, or a specific roller position. It does not need to become a full line study.<\/p>\r\n\r\n      <p>Before changing a roller, record the board grade and flute type, caliper before and after the suspected section, paper moisture if available, left-center-right caliper readings, pressure or loading setting, roll gap and parallelism check, feeder or print pressure if downstream crush is suspected, repeat distance of the mark, cross-section photos, old roller photos, roller drawing or dimensions, and the contact medium around the roller.<\/p>\r\n\r\n      <p>These details help Wolorin stay within the rubber roller scope. They support custom manufacturing, replacement direction, quotation, and production confirmation when the problem points to a roller position. Inspection items such as dimensions, hardness, surface condition, and runout can be discussed according to the roller position, with related reference available on Wolorin\u2019s <a href=\"https:\/\/wolorin.com\/es\/company\/quality-control\/\">Control de calidad<\/a> p\u00e1gina.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3d75071 e-flex e-con-boxed e-con e-parent\" data-id=\"3d75071\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4c53205 elementor-widget elementor-widget-html\" data-id=\"4c53205\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-a057-final\">\r\n  <style>\r\n    .wolorin-a057-final {\r\n      --w-blue: #142846;\r\n      --w-yellow: #f4b938;\r\n      --w-link: #1f5ea8;\r\n      --w-text: #263241;\r\n      --w-muted: #5d6a7a;\r\n      --w-border: #dfe5ec;\r\n      font-family: Arial, Helvetica, sans-serif;\r\n      color: var(--w-text);\r\n      padding: 32px 18px 58px;\r\n    }\r\n    .wolorin-a057-final .wrap {\r\n      max-width: 1040px;\r\n      margin: 0 auto;\r\n    }\r\n    .wolorin-a057-final h2 {\r\n      position: relative;\r\n      margin: 0 0 22px;\r\n      padding-left: 16px;\r\n      color: var(--w-blue);\r\n      font-size: 30px;\r\n      line-height: 1.24;\r\n      font-weight: 740;\r\n      letter-spacing: -0.01em;\r\n    }\r\n    .wolorin-a057-final h2::before {\r\n      content: \"\";\r\n      position: absolute;\r\n      left: 0;\r\n      top: 5px;\r\n      width: 5px;\r\n      height: calc(100% - 10px);\r\n      background: var(--w-yellow);\r\n      border-radius: 4px;\r\n    }\r\n    .wolorin-a057-final .related-grid {\r\n      display: grid;\r\n      grid-template-columns: repeat(2, minmax(0, 1fr));\r\n      gap: 16px;\r\n      margin-bottom: 34px;\r\n    }\r\n    .wolorin-a057-final .related-card {\r\n      display: block;\r\n      background: #ffffff;\r\n      border: 1px solid var(--w-border);\r\n      border-radius: 14px;\r\n      padding: 18px 18px 17px;\r\n      text-decoration: none;\r\n      box-shadow: 0 8px 22px rgba(20, 40, 70, 0.06);\r\n      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;\r\n    }\r\n    .wolorin-a057-final .related-card:hover {\r\n      transform: translateY(-3px);\r\n      box-shadow: 0 14px 28px rgba(20, 40, 70, 0.11);\r\n      border-color: rgba(244, 185, 56, 0.75);\r\n    }\r\n    .wolorin-a057-final .related-title {\r\n      display: block;\r\n      margin: 0 0 8px;\r\n      color: var(--w-link);\r\n      font-size: 17px;\r\n      line-height: 1.35;\r\n      font-weight: 760;\r\n      transition: color 0.18s ease;\r\n    }\r\n    .wolorin-a057-final .related-card:hover .related-title {\r\n      color: var(--w-yellow);\r\n    }\r\n    .wolorin-a057-final .related-desc {\r\n      display: block;\r\n      color: var(--w-muted);\r\n      font-size: 15.5px;\r\n      line-height: 1.58;\r\n    }\r\n    .wolorin-a057-final .cta {\r\n      background: var(--w-blue);\r\n      border-radius: 18px;\r\n      padding: 32px 32px;\r\n      box-shadow: 0 16px 34px rgba(20, 40, 70, 0.14);\r\n      color: #ffffff;\r\n    }\r\n    .wolorin-a057-final .cta h2 {\r\n      color: #ffffff;\r\n      margin-bottom: 18px;\r\n    }\r\n    .wolorin-a057-final .cta p {\r\n      margin: 0 0 17px;\r\n      font-size: 16.5px;\r\n      line-height: 1.76;\r\n      color: rgba(255, 255, 255, 0.9);\r\n    }\r\n    .wolorin-a057-final .cta p:last-of-type {\r\n      margin-bottom: 24px;\r\n    }\r\n    .wolorin-a057-final .button-row {\r\n      display: flex;\r\n      flex-wrap: wrap;\r\n      gap: 14px;\r\n      align-items: center;\r\n      margin-top: 4px;\r\n    }\r\n    .wolorin-a057-final .cta-button {\r\n      display: inline-flex;\r\n      align-items: center;\r\n      justify-content: center;\r\n      min-height: 48px;\r\n      padding: 13px 22px;\r\n      border-radius: 999px;\r\n      background: var(--w-yellow);\r\n      color: var(--w-blue);\r\n      text-decoration: none;\r\n      font-size: 16px;\r\n      font-weight: 760;\r\n      line-height: 1.2;\r\n      box-shadow: 0 8px 18px rgba(0, 0, 0, 0.14);\r\n      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;\r\n    }\r\n    .wolorin-a057-final .cta-button:hover {\r\n      transform: translateY(-2px);\r\n      background: #ffffff;\r\n      color: var(--w-blue);\r\n      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);\r\n    }\r\n    @media (max-width: 768px) {\r\n      .wolorin-a057-final {\r\n        padding: 24px 14px 42px;\r\n      }\r\n      .wolorin-a057-final h2 {\r\n        font-size: 24px;\r\n        padding-left: 14px;\r\n      }\r\n      .wolorin-a057-final .related-grid {\r\n        grid-template-columns: 1fr;\r\n        gap: 13px;\r\n      }\r\n      .wolorin-a057-final .cta {\r\n        padding: 26px 20px;\r\n        border-radius: 16px;\r\n      }\r\n      .wolorin-a057-final .cta p {\r\n        font-size: 16px;\r\n        line-height: 1.72;\r\n      }\r\n      .wolorin-a057-final .button-row {\r\n        display: block;\r\n      }\r\n      .wolorin-a057-final .cta-button {\r\n        width: 100%;\r\n      }\r\n    }\r\n  <\/style>\r\n\r\n  <div class=\"wrap\">\r\n    <h2>P\u00e1ginas relacionadas<\/h2>\r\n\r\n    <div class=\"related-grid\">\r\n      <a class=\"related-card\" href=\"https:\/\/wolorin.com\/es\/function\/pressure-rollers\/\">\r\n        <span class=\"related-title\">Rodillos de presi\u00f3n<\/span>\r\n        <span class=\"related-desc\">For pressure-contact positions where load and contact uniformity affect board crush.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"related-card\" href=\"https:\/\/wolorin.com\/es\/applications\/paper-converting-rollers\/\">\r\n        <span class=\"related-title\">Rodillos para conversi\u00f3n de papel<\/span>\r\n        <span class=\"related-desc\">For paper and board converting sections involving feeding, pressure, and contact stability.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"related-card\" href=\"https:\/\/wolorin.com\/es\/blog\/roller-runout-misalignment-eccentricity-problems\/\">\r\n        <span class=\"related-title\">Rubber Roller Runout and Misalignment<\/span>\r\n        <span class=\"related-desc\">For repeated marks, one-side pressure, and uneven contact checks.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"related-card\" href=\"https:\/\/wolorin.com\/es\/function\/drive-rollers\/\">\r\n        <span class=\"related-title\">Rodillos motrices<\/span>\r\n        <span class=\"related-desc\">For powered feeding sections where pressure and speed stability affect board movement.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"related-card\" href=\"https:\/\/wolorin.com\/es\/function\/traction-rollers\/\">\r\n        <span class=\"related-title\">Rodillos de tracci\u00f3n<\/span>\r\n        <span class=\"related-desc\">For grip-related positions where added pressure may create crush risk.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"related-card\" href=\"https:\/\/wolorin.com\/es\/material\/polyurethane-rubber-rollers\/\">\r\n        <span class=\"related-title\">Rodillos de caucho de poliuretano<\/span>\r\n        <span class=\"related-desc\">For load-support and wear-resistant roller directions when the contact condition is suitable.<\/span>\r\n      <\/a>\r\n    <\/div>\r\n\r\n    <div class=\"cta\">\r\n      <h2>Enviar planos o datos del rodillo<\/h2>\r\n\r\n      <p>When the evidence points to a rubber roller position, send the roller drawing or current dimensions, old roller photos, roller position, rubber hardness if known, contact medium around the roller, board grade, flute type, and the current rubber roller-related problem. Useful problem details include uneven pressure, wear, slipping, repeated marks, or suspected board crush after that roller.<\/p>\r\n\r\n      <p>Si ya dispone de planos, medidas, muestras o especificaciones claras, puede envi\u00e1rnoslas directamente a Wolorin. Podemos proceder con la fabricaci\u00f3n a medida, la cotizaci\u00f3n o la confirmaci\u00f3n de producci\u00f3n bas\u00e1ndonos en su documentaci\u00f3n.<\/p>\r\n\r\n      <p>If the information is not complete yet, start with the roller position, old roller photos, contact medium, and the board problem seen after that roller.<\/p>\r\n\r\n      <div class=\"button-row\">\r\n        <a class=\"cta-button\" href=\"https:\/\/wolorin.com\/es\/send-drawings\/\">Enviar planos o datos del rodillo<\/a>\r\n      <\/div>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Corrugated Board Crush Problems: Caliper Loss, Flute Damage, and Pressure Marks Corrugated board crush usually starts as a very practical production problem. The sheet feels softer than normal. The board caliper is lower after one section. A straight pressure band appears across the width. When the board is cut open, the flute profile looks lower [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5215","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/posts\/5215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/comments?post=5215"}],"version-history":[{"count":7,"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/posts\/5215\/revisions"}],"predecessor-version":[{"id":5235,"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/posts\/5215\/revisions\/5235"}],"wp:attachment":[{"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/media?parent=5215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/categories?post=5215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wolorin.com\/es\/wp-json\/wp\/v2\/tags?post=5215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}