{"id":3328,"date":"2025-11-05T07:27:46","date_gmt":"2025-11-05T07:27:46","guid":{"rendered":"https:\/\/gearboxagricultural.com\/?post_type=product&p=3328"},"modified":"2025-11-05T07:27:48","modified_gmt":"2025-11-05T07:27:48","slug":"ghx250-crane-gearbox-reducer","status":"publish","type":"product","link":"https:\/\/gearboxagricultural.com\/it\/prodotto\/ghx250-crane-gearbox-reducer\/","title":{"rendered":"Riduttore per gru GHX250"},"content":{"rendered":"
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Parametri del prodotto<\/h2>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Modello<\/th>\nGHX250<\/th>\nApplicazione<\/th>\nWire rope hoist \/ Bridge, gantry and tower cranes<\/th>\n<\/tr>\n<\/thead>\n
Gear Type<\/td>\n3-stage helical gear transmission<\/td>\nDrum Diameter<\/td>\n140\u2013405 mm<\/td>\n<\/tr>\n
Rated Lifting Capacity<\/td>\n3.2\u201340 t<\/td>\nLifting Speed<\/td>\n4\u201315 m\/min (4\/1 reeving)<\/td>\n<\/tr>\n
Motor Type<\/td>\n12\/2-pole two-speed motor or inverter drive<\/td>\nRated Motor Power<\/td>\nUp to approx. 38 kW (depending on model and configuration)<\/td>\n<\/tr>\n
Classe di protezione<\/td>\nIP54 (optional IP65)<\/td>\nCooling Method<\/td>\nSelf-cooling or independent fan \/ oil cooling<\/td>\n<\/tr>\n
Mounting Method<\/td>\nDirect drum mounting<\/td>\nHousing Material<\/td>\nAluminum alloy or corrosion-treated steel\/castings<\/td>\n<\/tr>\n
Lubrificazione<\/td>\nGear oil fill (optional forced circulation lubrication)<\/td>\nCaratteristiche del prodotto<\/td>\nHigh starting torque, low noise, compact size, suitable for continuous operation<\/td>\n<\/tr>\n
Options \/ Remarks<\/td>\nMultiple gear ratios and custom configurations available<\/td>\nFactory Tests<\/td>\nIncludes no-load\/load tests, temperature rise and noise checks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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GHX250 Crane Hoist Gearbox \u2013 Product Overview<\/h2>\n

\"g132-gru-a-cavalletto-riduttore-3\"<\/p>\n

The GHX250 is a crane hoist gearbox designed specifically for wire rope drum lifting mechanisms. It is typically paired with dual-speed motors or variable-frequency drives (VFDs) and is suitable for bridge cranes, gantry cranes, tower cranes, and similar lifting systems.
Featuring a drum-shaft direct mounting structure, the GHX250 offers a compact, lightweight design that delivers high torque transmission even in limited installation spaces. It is frequently listed in industry selection manuals and is commonly used as a drive unit for ZFB-type hoisting mechanisms, ideal for both engineering applications and OEM equipment requiring smooth lifting and long service life.<\/p>\n

Gear Design, Housing Material & Lubrication<\/h2>\n

The GHX250 adopts a three-stage helical gear transmission with an increased center distance to enhance torque capacity and operational lifespan.
The housing is typically made from aluminum alloy\u2014reducing weight and improving heat dissipation\u2014or from treated steel or cast housing for heavy-duty use. Surface anti-corrosion treatment is available for outdoor or dusty environments.<\/p>\n

The gears are hardened and precision ground for improved meshing accuracy and wear resistance, while key transmission shafts undergo surface hardening to extend service life.
Lubrication is provided by high-grade gear oil, with optional forced circulation or fan-assisted cooling for high-duty-cycle operations to maintain temperature stability.
High-quality bearings and seal assemblies minimize maintenance frequency and maximize uptime. The overall design focuses on delivering high starting torque, low noise, and compact dimensions\u2014balancing power density and durability.<\/p>\n

Application Scenarios for Bridge, Gantry & Tower Cranes<\/h2>\n

The GHX250 is suitable for a wide range of wire rope drum-driven lifting systems, including:<\/p>\n

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    Bridge cranes used in industrial workshops<\/p>\n<\/li>\n

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    Gantry cranes for ports, yards, and logistics facilities<\/p>\n<\/li>\n

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    Tower cranes as the main hoisting drive unit<\/p>\n<\/li>\n<\/ul>\n

    In the agricultural sector, the GHX250 is also widely adopted by OEM manufacturers for applications such as bulk material handling, straw lifting, and bale hoisting, where medium-to-low speed and high torque are required.<\/p>\n

    Typical performance examples include:<\/p>\n

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      A 4\/1 reeving system achieving a lifting speed of 4\u20138 m\/min, ideal for continuous light-to-medium-duty operations.<\/p>\n<\/li>\n

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      For heavier loads (20\u201340 tons), pairing the GHX250 with an appropriate reduction ratio and higher-power motor provides stable lifting for short-duty heavy-load applications.<\/p>\n<\/li>\n<\/ul>\n

      When selecting a model, consider the duty cycle (S1 continuous or intermittent), ambient temperature, and required protection level to ensure long-term, reliable operation in your specific working conditions.<\/p>\n

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      GHX250 Installation and Commissioning Guide<\/h2>\n

      Installation Essentials<\/h3>\n

      Axial and Radial Alignment:
      During installation, ensure that the motor and gearbox shafts are properly aligned both axially and radially.
      If a coupling is used, loosen the coupling fasteners first and perform a rough alignment. Gradually tighten the bolts while checking alignment until radial runout and axial deviation are within the manufacturer\u2019s specified tolerance.<\/p>\n

      Tightening Sequence:
      Flange bolts connecting the drum shaft and gearbox housing should be tightened diagonally in multiple stages to ensure even stress distribution and to prevent deformation.
      All bolts must be tightened to the recommended torque values and secured using spring washers or thread-locking methods to prevent loosening during operation.<\/p>\n

      Gear Engagement Check:
      After installation, manually rotate the drum shaft to verify that gear meshing is smooth and uniform, with no contact interference or jamming.
      Inspect the bearings and seals for proper seating. If abnormal noise, resistance, or vibration is detected, stop immediately and readjust or reassemble as needed.<\/p>\n

      Coupling or Flange Connection:
      Once alignment is complete, allow for proper thermal expansion and contraction clearance between connected components.
      Follow the manufacturer\u2019s recommendations for coupling gap or shim thickness, ensuring that excessive preload is avoided to prevent bearing overload.<\/p>\n

      Commissioning Procedure<\/h3>\n

      No-Load Test Run:
      Before energizing the motor, confirm that the oil level, fasteners, and protective covers are in place.
      At initial startup, torque demand may be high\u2014run at low speed under no load for 5\u201310 minutes while monitoring bearing temperature, noise, and vibration levels.<\/p>\n

      Low-Speed Observation:
      Operate at low speed (low gear or VFD-controlled speed) to check lubrication flow, seal integrity, and temperature rise.
      Ensure there are no abnormal odors, smoke, or signs of oil leakage.<\/p>\n

      Load Test:
      Gradually apply load and monitor temperature increase and operating stability.
      Upon completion of the rated load test, verify brake function and safety interlocks.<\/p>\n

      Safety Brake Verification:
      Under rated working conditions, test the braking distance and reliability.
      Ensure that the braking system can stop safely within the specified distance in the event of power loss or an emergency stop command.<\/p>\n

      \"ghx250-crane-gearbox-display-product\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

      GHX250 Common Spare Parts and Replaceable Components<\/h2>\n<\/div>\n<\/div>\n<\/article>\n
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      We also supply original spare parts and compatible components for the GHX250 crane hoist gearbox. Please contact us if replacement parts or maintenance kits are required.<\/p>\n

      Recommended Standard Spare Parts<\/h3>\n
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        Bearing sets (output shaft bearings \/ intermediate shaft bearings): \u00d72\u20134 sets<\/p>\n<\/li>\n

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        Main reduction gears (first and second stage \u2013 commonly worn components): several units<\/p>\n<\/li>\n

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        Oil seals and sealing rings (main shaft seals, flange gaskets): several units<\/p>\n<\/li>\n

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        Drum shaft flange and connection bolt kits<\/p>\n<\/li>\n

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        Elastic coupling elements or spacer shims<\/p>\n<\/li>\n

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        Gear oil (recommended grades) and oil sampling\/testing tools<\/p>\n<\/li>\n<\/ul>\n

        Suggested Replacement Intervals<\/h3>\n
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          Bearings: Replace every 3\u20135 years, depending on operating conditions. For heavy-duty or high-frequency applications, consider shorter intervals.<\/p>\n<\/li>\n

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          Oil seals \/ sealing rings: Replace during major overhauls or whenever oil leakage is detected. Inspect every 1\u20132 years and replace as necessary.<\/p>\n<\/li>\n

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          Gears: Replace or regrind when noticeable tooth surface fatigue or pitting occurs based on wear inspection results.<\/p>\n<\/li>\n<\/ul>\n

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          FAQ<\/h2>\n

          What types of cranes can the GHX250 gearbox be used with?<\/h3>\n

          The GHX250 is compatible with bridge cranes, gantry cranes, and tower cranes that use wire rope drum lifting systems. It is also widely adopted in agricultural machinery for bulk material handling and bale hoisting.<\/p>\n

          \u00a0What is the recommended maintenance interval for GHX250 bearings?<\/h3>\n

          Bearings should generally be replaced every 3\u20135 years, depending on the working conditions. For heavy-duty or high-frequency operations, it’s recommended to shorten the replacement interval to ensure optimal performance.<\/p>\n

          Can the GHX250 gearbox be customized for specific load capacities?<\/h3>\n

          Yes, the GHX250 offers multiple gear ratios and custom configurations, making it adaptable for different lifting capacities, from light-duty to heavy-duty applications (up to 40 tons).<\/p>\n

          How do I ensure proper installation and alignment of the GHX250 gearbox?<\/h3>\n

          Ensure axial and radial alignment of the motor and gearbox shafts during installation. Tighten flange bolts diagonally in stages and check gear engagement by manually rotating the drum shaft to ensure smooth operation and proper meshing.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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          Recensioni dei clienti<\/h2>\n

          \u2b50\u2b50\u2b50\u2b50\u2b50 Liam Thompson, Maintenance Lead, SteelTech Engineering, USA<\/strong>
          We\u2019ve had the Riduttore per gru GHX250<\/strong> running in our gantry cranes for several months now. It\u2019s been reliable, with smooth operations and no issues under heavy load. The low noise and efficient torque transmission are huge bonuses for our team. Highly recommend for anyone looking to improve performance in demanding environments.<\/p>\n

          \u2b50\u2b50\u2b50\u2b50\u2b50 Sofia Nilsson, Operations Manager, Nordic Hoists, Sweden<\/strong>
          IL GHX250<\/strong> was a perfect fit for our tower cranes. It installed easily and worked flawlessly from day one. We’ve noticed better efficiency in lifting speeds, and the system runs quieter than our previous gearboxes. Definitely a great choice for heavy-duty applications.<\/p>\n

          \u2b50\u2b50\u2b50\u2b50\u2b50 Antonio Rossi, Equipment Supervisor, PortTech Logistics, Italy<\/strong>
          We replaced our older gearbox with the GHX250<\/strong> and it’s been a solid performer. The compact design was perfect for our space constraints, and it\u2019s been running smoothly even under continuous high torque. Maintenance has been minimal, and we\u2019ve seen significant improvements in operational uptime.<\/p>\n

          \u2b50\u2b50\u2b50\u2b50\u2b50 John Williams, Crane Operations Director, BuildForce Construction, UK<\/strong>
          Used the GHX250<\/strong> on a few of our bridge cranes now, and it\u2019s been fantastic. It handles the weight without breaking a sweat and doesn\u2019t run hot even during long lifts. It\u2019s slightly pricier than some options, but the reliability and performance make it totally worth it. Would definitely invest again!<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n

          <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

          Model GHX250 Crane Gearbox Reducer is a compact yet robust hoist gear unit designed for wire\u2011rope drive systems with double\u2011speed motor configurations. Engineered for integration with OEM agricultural machinery as well as heavy\u2011duty cranes, it pairs reliably with agricultural hay balers, cotton\u2011gin feed systems, grain\u2011elevator hoist winches, tunnel loader conveyors and similar lift\u2011drive equipment. Compared with standard hoist reducers it offers direct drum\u2011mount capability, higher starting torque and reduced installation footprint\u2014making it especially suitable for OEMs seeking a dependable hoist gearbox with flexible mounting and two\u2011speed motor compatibility.<\/p>","protected":false},"featured_media":3334,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1875,1870],"product_tag":[],"class_list":{"0":"post-3328","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-crane-gearbox","7":"product_cat-uncategorized","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/product\/3328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/comments?post=3328"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/media\/3334"}],"wp:attachment":[{"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/media?parent=3328"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/product_brand?post=3328"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/product_cat?post=3328"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gearboxagricultural.com\/it\/wp-json\/wp\/v2\/product_tag?post=3328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}