Editorial Technical Reference

Gantry Crane

This page explains how Gantry Crane is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A large crane with a horizontal beam supported by two or more legs running on fixed rails or ground tracks.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Gantry Crane

Definition
A gantry crane is an overhead crane with a hoist that runs horizontally along a gantry, which is a structure consisting of a horizontal beam supported at both ends by upright legs that travel on fixed rails or ground tracks. These cranes are designed for lifting and moving heavy loads in industrial settings, particularly where overhead bridge cranes are impractical due to building constraints or outdoor applications. The gantry crane operates through an electric or hydraulic system that powers the hoist mechanism to lift loads vertically. The hoist travels along the horizontal beam (bridge) of the gantry structure, while the entire gantry can move along ground-mounted rails using motorized wheels or tracks. This allows for three-dimensional movement: vertical lifting via the hoist, horizontal movement along the bridge, and longitudinal movement of the entire gantry along the rails. Typical specifications include a lifting capacity of 5 to 100 tons, a span length of 10 to 40 meters, and a lifting height of 6 to 30 meters. Travel speed ranges from 20 to 80 meters per minute, and hoist speed from 2 to 20 meters per minute. The working class is A5 to A7 per ISO 4301/1, and the power supply is 380 V AC ±10% at 50 Hz, with a control voltage of 24 V DC ±10%. The crane is designed for ambient temperatures from -20°C to 40°C, and for outdoor operation, a maximum wind speed of 20 m/s is allowed; higher wind speeds require anchoring. Rail size should be P38 to P50, and wheel load ranges from 100 to 400 kN. The total weight is approximately 10 to 150 tons, depending on configuration. These values are reference ranges and must be verified with the manufacturer for specific models. The crane is typically made of structural steel and high-strength alloy steel. It is used in various industries, including manufacturing, shipbuilding, and logistics, where heavy loads need to be moved over large areas. The gantry crane is a versatile and essential piece of equipment for many industrial operations.
Working Principle
The gantry crane operates through an electric or hydraulic system that powers the hoist mechanism to lift loads vertically. The hoist travels along the horizontal beam (bridge) of the gantry structure, while the entire gantry can move along ground-mounted rails using motorized wheels or tracks. This allows for three-dimensional movement: vertical lifting via the hoist, horizontal movement along the bridge, and longitudinal movement of the entire gantry along the rails.
Common Materials
Structural Steel, High-Strength Alloy Steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Lifting CapacityRequired5–100 tonsMaximum weight the crane can safely liftGB/T 14405
Span LengthRequired10–40 metersDistance between the two supporting legs of the gantryGB/T 14405
Lifting HeightRequired6–30 metersMaximum vertical distance the hoist can lift a loadGB/T 14405
Travel SpeedRequired20–80 meters/minuteSpeed at which the gantry moves along the railsGB/T 14405
Hoist SpeedRequired2–20 meters/minuteSpeed at which the hoist raises and lowers loadsGB/T 14405
Working ClassA5–A7Duty classification per ISO 4301/1.GB/T 3811
Power Supply380 ±10% V AC3-phase, 50 Hz; other voltages available.GB/T 5226.1
Control Voltage24 ±10% V DCSafety extra-low voltage for control circuits.GB/T 5226.1
Ambient Temperature-20–40 °COutside this range, special materials required.GB/T 14405
Max Wind Speed20 m/sFor outdoor operation; higher wind requires anchoring.GB/T 3811
Rail SizeP38–P50 kg/mMatch to wheel load and span.GB/T 11264
Wheel Load100–400 kNMaximum wheel load per wheel; affects runway design.GB/T 3811
Total Weight10–150 tApproximate weight; depends on configuration.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Gantry Frame
    Provides the main structural support for the crane, consisting of horizontal beams and vertical legs
    Material: Structural steel with welded connections
  • Hoist Unit
    Mechanism for lifting and lowering loads, typically consisting of motor, gearbox, drum, and wire rope
    Material: Steel housing with alloy steel gears and components
  • Trolley
    Carries the hoist unit and moves horizontally along the gantry beam
    Material: Steel frame with wheel assemblies
  • End Trucks
    Wheel assemblies at the base of each leg that allow the gantry to travel along rails
    Material: Steel construction with hardened steel wheels
  • Electrical Control System
    Provides power distribution, motor control, and operational commands for crane movement
    Material: Enclosed steel cabinets with copper wiring and electronic components
  • Operator Cabin
    Enclosed space for crane operator with controls and visibility
    Material: Steel frame with safety glass windows

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gantry Crane.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (structural load only)
other spec: Max wind speed: 20 m/s operational, 40 m/s survival; Humidity: ≤95% non-condensing
temperature: -20°C to +40°C (standard), -40°C to +50°C (specialized)
Media Compatibility
✓ Steel beams and plates ✓ Shipping containers ✓ Heavy machinery components
Unsuitable: Explosive or highly corrosive chemical environments
Sizing Data Required
  • Maximum lifting capacity (tons)
  • Span length between legs (meters)
  • Lifting height/hoist travel (meters)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wire rope degradation
Cause: Fatigue from repeated bending over sheaves, corrosion due to environmental exposure, and abrasion from contact with drum grooves or other surfaces, leading to broken wires, reduced diameter, or loss of core lubrication.
Gearbox bearing failure
Cause: Inadequate lubrication (contamination, incorrect viscosity, or insufficient quantity), misalignment from improper installation or structural deflection, and excessive loads beyond design limits, resulting in overheating, spalling, or seizure.
Maintenance Indicators
  • Abnormal noises during operation (e.g., grinding, screeching, or knocking from hoist mechanisms or trolley drives)
  • Visible structural cracks, deformation, or excessive corrosion on critical load-bearing components like girders, end trucks, or hooks
Engineering Tips
  • Implement a predictive maintenance program using vibration analysis and thermography to monitor gearboxes, motors, and bearings, enabling early detection of imbalances, misalignment, or lubrication issues before catastrophic failure.
  • Establish a rigorous inspection and lubrication schedule for wire ropes, sheaves, and brakes, following manufacturer specifications for tension checks, corrosion prevention, and replacement criteria based on wear patterns and discard standards.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 12488-1: Cranes - Tolerances for cranes and crane rails ANSI/ASME B30.2: Overhead and Gantry Cranes DIN 15018-1: Cranes; principles for steel structures; calculation

Quoted from the published standard.

Manufacturing Precision
  • Wheel alignment: +/- 0.5mm per meter of span
  • Hook approach: +/- 10mm from design position
Quality Inspection
  • Load test: 125% rated capacity static test
  • Non-destructive testing: Magnetic particle inspection of welds

Manufacturers of Gantry Crane

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

CM Energy
Xiamen, Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
THHI
Jiangsu, CN
Founded 1992
Also makes: Spreader, Telescopic Boom, Offshore Crane and 7 more
Listed on the company's own website · profile compiled by CNFX from public sources
BVEE Group
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Dafang Crane
Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
DGCRANE
Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Eurocrane (China) Co., Ltd.
Jiangsu, CN
Also makes: Jib Crane, Overhead Crane, Remote Control and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources
Handan China Railway Bridge Machinery Co. Ltd.
Hangzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Henan Kuangshan Crane Co., Ltd.
Henan, CN
Also makes: Spreader, Overhead Crane, Gear Reducer and 2 more
Listed on the company's own website · profile compiled by CNFX from public sources
Henan Seven Industry
Henan, CN
Also makes: Overhead Crane, Portal Crane, Jib Crane and 5 more
Listed on the company's own website · profile compiled by CNFX from public sources
Henan Yuantai Crane Machinery Import&Export Co., Ltd.
Henan, CN
Also makes: Jib Crane, Overhead Crane, Bridge Crane and 4 more
Listed on the company's own website · profile compiled by CNFX from public sources
Huadelift
Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Huasui Crane
Henan, CN
Also makes: Overhead Crane, Hoist Winch, Portal Crane and 2 more
Listed on the company's own website · profile compiled by CNFX from public sources
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Frequently Asked Questions

What is the typical lifting capacity of a gantry crane?

According to the directory reference, the lifting capacity ranges from 5 to 100 tons. However, the exact capacity depends on the specific model and configuration, so it must be confirmed with the manufacturer.

What are the standard power supply requirements?

The standard power supply is 380 V AC ±10% at 50 Hz, with a control voltage of 24 V DC ±10%. Other voltages may be available, but they should be verified with the supplier.

Can a gantry crane be used outdoors?

Yes, it can be used outdoors, but the maximum wind speed is 20 m/s. For higher wind speeds, additional anchoring is required. The ambient temperature range is -20°C to 40°C; outside this range, special materials may be needed.

What standards apply to gantry cranes?

The directory lists standards such as GB/T 14405 for general specifications, GB/T 3811 for design rules, GB/T 5226.1 for electrical equipment, and GB/T 11264 for rails. These are reference standards and do not guarantee certification; always verify compliance with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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