{"id":1651,"date":"2026-09-14T08:35:19","date_gmt":"2026-09-14T00:35:19","guid":{"rendered":"https:\/\/lqcncparts.com\/?post_type=news&p=1651"},"modified":"2026-09-08T16:04:51","modified_gmt":"2026-09-08T08:04:51","slug":"hgr-linear-guide-size-chart-hgr15-hgr20-hgr25-hgr30-dimensions-guide","status":"publish","type":"news","link":"https:\/\/lqcncparts.com\/it\/notizie\/hgr-linear-guide-size-chart-hgr15-hgr20-hgr25-hgr30-dimensions-guide\/","title":{"rendered":"Tabella delle dimensioni delle guide lineari HGR: HGR15, HGR20, HGR25, HGR30 \u2013 Guida alle dimensioni"},"content":{"rendered":"

La scelta di una guida lineare delle dimensioni errate pu\u00f2 causare vibrazioni, una capacit\u00e0 di carico insufficiente e una scarsa precisione di lavorazione nelle macchine CNC. Molti acquirenti si basano esclusivamente sulla larghezza della guida, trascurando il tipo di carrello, il precarico, la rigidit\u00e0 e i requisiti applicativi.<\/p>\n

An HGR linear guide uses a precision rail and carriage system designed for CNC machines, automation equipment, and industrial motion systems. Common sizes such as HGR15, HGR20, HGR25, and HGR30 are selected according to load requirements, machine structure, and precision level.<\/p>\n

HGR Linear Guide Size Chart Overview<\/h2>\n

Il HGR linear guide<\/a> <\/strong><\/span>belongs to the HIWIN HG series, which is one of the most widely used profile rail guide designs in CNC and automation applications.<\/p>\n

The HG series uses a four-row ball-type design with equal load capacity in four directions. This structure provides:<\/p>\n

    \n
  1. Elevata rigidit\u00e0<\/li>\n
  2. Alta precisione<\/li>\n
  3. Smooth motion<\/li>\n
  4. Lunga durata di vita<\/li>\n<\/ol>\n

    For machine builders, choosing the correct rail size is important because the size affects:<\/p>\n

      \n
    1. Load ratings<\/li>\n
    2. Rigidit\u00e0<\/li>\n
    3. Deflection resistance<\/li>\n
    4. Installation dimensions<\/li>\n<\/ol>\n

      The most common HGR sizes include:<\/p>\n\n\n\n\n\n\n\n
      Modello<\/td>\nRail Width<\/td>\nTypical Application<\/td>\n<\/tr>\n
      HGR15<\/td>\n15 mm<\/td>\nSmall CNC, 3D printers, light automation<\/td>\n<\/tr>\n
      HGR20<\/td>\n20 mm<\/td>\nCNC routers, engraving machines<\/td>\n<\/tr>\n
      HGR25<\/td>\n23 mm<\/td>\nMedium CNC equipment<\/td>\n<\/tr>\n
      HGR30<\/td>\n28 mm<\/td>\nHeavy CNC machines and automation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      What Is an HGR Linear Guide?<\/h2>\n

      An HGR linear guide is a profile linear guide system consisting of:<\/p>\n

        \n
      1. Steel rail<\/li>\n
      2. Slider\/carriage<\/li>\n
      3. Rolling elements<\/li>\n
      4. Raceway structure<\/li>\n<\/ol>\n

        The rail provides the fixed motion path, while the carriage moves along the rail with low friction.<\/p>\n

        Unlike traditional slide rails, HGR guideways use circulating rolling elements that recirculate inside the carriage.<\/p>\n

        This allows the system to achieve:<\/p>\n

          \n
        1. Precision linear motion<\/li>\n
        2. Alta capacit\u00e0 di carico<\/li>\n
        3. Stable positioning<\/li>\n
        4. Low friction movement<\/li>\n<\/ol>\n

          In CNC applications, the linear guide works together with other motion components such as:<\/p>\n

            \n
          1. Vite a ricircolo di sfere<\/li>\n
          2. Servo motor<\/li>\n
          3. Controller<\/li>\n<\/ol>\n

            to create a complete CNC motion system.<\/p>\n

            LONGQIAO supplies CNC motion components for global machine manufacturers, including linear guide rails, ball screws, servo systems, and transmission components.<\/p>\n

            \"Guida<\/p>\n

            HGR15 Linear Guide Size and Application<\/h2>\n

            HGR15 Dimensions<\/p>\n

            The HGR15 linear guide is one of the smallest sizes in the HG series.<\/p>\n

            Typical specifications:<\/p>\n\n\n\n\n\n\n\n\n
            Parametro<\/td>\nHGR15<\/td>\n<\/tr>\n
            Rail width<\/td>\n15 mm<\/td>\n<\/tr>\n
            Applicazione<\/td>\nLight CNC and automation<\/td>\n<\/tr>\n
            Struttura<\/td>\nFour-row ball design<\/td>\n<\/tr>\n
            Precisione<\/td>\nAlta precisione<\/td>\n<\/tr>\n
            Capacit\u00e0 di carico<\/td>\nLight-medium load<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            The HGR15 is suitable for applications requiring compact dimensions.<\/p>\n

            Common uses:<\/p>\n

              \n
            1. Small CNC machines<\/li>\n
            2. Desktop CNC routers<\/li>\n
            3. Stampanti 3D<\/li>\n
            4. Laser engraving machines<\/li>\n
            5. Precision automation equipment<\/li>\n<\/ol>\n

              Advantages of HGR15 Linear Rail<\/h2>\n

              The HGR15 rail provides:<\/p>\n

                \n
              1. Compact design<\/li>\n
              2. Smooth movement<\/li>\n
              3. Low friction<\/li>\n
              4. Good positioning accuracy<\/li>\n<\/ol>\n

                Because of its smaller size, it is ideal where installation space is limited.<\/p>\n

                For example:<\/p>\n

                A small CNC engraving machine may use HGR15 linear rails because the machine does not require extremely heavy cutting forces.<\/p>\n

                HGR20 Linear Guide Size and Application<\/h2>\n

                The HGR20 linear guide is one of the most popular sizes for CNC applications.<\/p>\n

                It provides a good balance between:<\/p>\n

                  \n
                1. Dimensioni<\/li>\n
                2. Capacit\u00e0 di carico<\/li>\n
                3. Rigidit\u00e0<\/li>\n
                4. Precisione<\/li>\n<\/ol>\n

                  HGR20 Dimensions<\/strong><\/p>\n\n\n\n\n\n\n\n\n
                  Parametro<\/td>\nHGR20<\/td>\n<\/tr>\n
                  Rail width<\/td>\n20 mm<\/td>\n<\/tr>\n
                  Applicazione<\/td>\nCNC routers and automation<\/td>\n<\/tr>\n
                  Capacit\u00e0 di carico<\/td>\nMedio<\/td>\n<\/tr>\n
                  Precisione<\/td>\nAlto<\/td>\n<\/tr>\n
                  Struttura<\/td>\nFour-row ball bearing design<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  Why HGR20 Linear Rails Are Popular for CNC Machines?<\/h2>\n

                  The HGR20 linear guide is widely selected because it offers improved rigidity compared with smaller rails.<\/p>\n

                  Applications include:<\/p>\n

                    \n
                  1. Fresatrici CNC<\/li>\n
                  2. Woodworking machines<\/li>\n
                  3. Laser cutters<\/li>\n
                  4. Small milling machines<\/li>\n
                  5. Apparecchiature per l'automazione<\/li>\n<\/ol>\n

                    For CNC router manufacturers, HGR20 linear rails provide:<\/p>\n

                      \n
                    1. Stable carriage movement<\/li>\n
                    2. Better cutting accuracy<\/li>\n
                    3. Improved vibration resistance<\/li>\n<\/ol>\n

                      HGR25 Linear Guide Size and Application<\/h3>\n

                      The HGR25 linear guide is a medium-size HIWIN linear rail solution designed for applications that require higher load capacity and stronger rigidity than HGR15 and HGR20.<\/p>\n

                      It is commonly selected for machines that need a balance between:<\/p>\n

                        \n
                      1. Precisione<\/li>\n
                      2. Capacit\u00e0 di carico<\/li>\n
                      3. Spazio di installazione<\/li>\n
                      4. Cost efficiency<\/li>\n<\/ol>\n

                        The HGR25 is widely used in:<\/p>\n

                          \n
                        1. Fresatrici CNC<\/li>\n
                        2. CNC milling machines<\/li>\n
                        3. Apparecchiature per l'automazione industriale<\/li>\n
                        4. Metal processing machinery<\/li>\n
                        5. Medium-size CNC machines<\/li>\n<\/ol>\n

                          HGR25 Dimensions<\/strong><\/h3>\n

                          The typical specifications of the HGR25 linear guide include:<\/p>\n\n\n\n\n\n\n\n\n
                          Parametro<\/td>\nHGR25<\/td>\n<\/tr>\n
                          Rail width<\/td>\n23 mm<\/td>\n<\/tr>\n
                          Applicazione<\/td>\nMedium CNC equipment<\/td>\n<\/tr>\n
                          Capacit\u00e0 di carico<\/td>\nMedium-high<\/td>\n<\/tr>\n
                          Precisione<\/td>\nAlta precisione<\/td>\n<\/tr>\n
                          Struttura<\/td>\nFour-row ball bearing design<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          Compared with HGR20, the HGR25 provides:<\/p>\n

                            \n
                          1. Higher rigidity<\/li>\n
                          2. Greater load capacity<\/li>\n
                          3. Better resistance to deformation<\/li>\n<\/ol>\n

                            For CNC machines with heavier cutting forces, HGR25 is often a more suitable choice.<\/p>\n

                            \"Guida

                            \u00a0<\/p><\/div>\n

                            Advantages of HGR25 Linear Rail<\/h2>\n

                            The HGR25 rail is designed for applications requiring more stable movement.<\/p>\n

                            Main advantages include:<\/p>\n

                            Higher Rigidity<\/strong><\/p>\n

                            The larger rail size improves stiffness and reduces deflection during operation.<\/p>\n

                            This helps maintain:<\/p>\n

                              \n
                            1. Cutting accuracy<\/li>\n
                            2. Position stability<\/li>\n
                            3. Surface quality<\/li>\n<\/ol>\n

                              Higher Load Capacity<\/strong><\/p>\n

                              Compared with smaller rails, HGR25 can handle heavier loads.<\/p>\n

                              It is suitable for:<\/p>\n