Editorial Technical Reference

Mobile Crane

This page explains how Mobile 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 self-propelled crane mounted on a wheeled or tracked chassis, capable of lifting and moving heavy loads at construction sites, ports, and industrial facilities.

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

Product Specifications

Technical details and manufacturing context for Mobile Crane

Definition
A mobile crane is a versatile lifting machine mounted on a mobile platform, typically featuring a telescopic or lattice boom, hydraulic systems for lifting and extending operations, and outriggers for stabilization. It combines transportation capability with heavy lifting functions, allowing it to travel between job sites and perform lifting tasks without requiring permanent installation. Mobile cranes are essential equipment in construction, infrastructure development, logistics, and industrial maintenance operations. The machine is powered by an internal combustion engine that drives hydraulic pumps, which pressurize fluid to actuate cylinders for boom extension and lifting. The load is suspended from a hook attached to wire ropes running over sheaves at the boom tip. Load moment indicators and computer-controlled systems monitor stability and prevent overload conditions. Outriggers extend to create a stable base before lifting operations commence. Mobile cranes are available in various configurations, with lifting capacities typically ranging from 25 to 220 metric tons, boom lengths from 30 to 80 meters, and lifting heights from 35 to 100 meters. They can operate at radii up to 70 meters and travel at speeds between 20 and 80 km/h. The engine power ranges from 150 to 400 kilowatts, and the total weight from 30 to 200 tons. Hydraulic operating pressure is typically between 25 and 35 MPa, and the operating temperature range is -20 to 50 degrees Celsius. The ingress protection rating for electrical enclosures is typically IP54 to IP65. The boom elevation angle can vary from 0 to 80 degrees. These parameters are reference ranges and must be verified for specific models. Standards such as ISO 4305 for lifting capacity, ISO 3046-1 for engine power for operating pressure, and IEC 60529 for ingress protection are used as verification references. Always confirm model-specific values and standards with the legal manufacturer or supplier.
Working Principle
Mobile cranes operate through a combination of mechanical, hydraulic, and electrical systems. The engine provides power to hydraulic pumps that pressurize hydraulic fluid, which then actuates cylinders for boom extension/retraction and lifting operations. The load is suspended from a hook attached to wire ropes that run over sheaves at the boom tip. Load moment indicators and computer-controlled systems monitor stability and prevent overload conditions. Outriggers extend to create a stable base before lifting operations commence.
Common Materials
High-strength steel, Alloy steel, Hydraulic components, Rubber tires
Technical Parameters
ParameterTypical rangeNotes & selection driver
Maximum Lifting CapacityRequired25–220 metric tonsThe maximum weight the crane can lift under specified boom configuration and radius conditionsISO 4305
Maximum Boom LengthRequired30–80 metersFully extended length of the main boom without jib attachment
Maximum Lifting HeightRequired35–100 metersMaximum vertical reach from ground level to hook at full boom extension
Maximum RadiusRequired25–70 metersMaximum horizontal distance from crane center to load at full boom extension
Engine PowerRequired150–400 kilowattsPower output of the crane's main engineISO 3046-1
Travel Speed20–80 km/hMaximum road travel speed with boom retracted and secured
Outrigger SpreadRequired4.5–9.0 metersMaximum width between extended outriggers for stabilization
Operating Pressure25–35 MPaHydraulic system pressure; below 25 MPa reduces lift speed.
Operating Temperature-20–50 °COutside range, hydraulic fluid viscosity changes.
Ingress Protection RatingIP54–IP65For electrical enclosures; higher for dusty/wet sites.IEC 60529
Total Weight30–200 tAffects transport and ground bearing pressure.
Boom Elevation Angle0–80 °Max angle for maximum height; min for radius.

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
  • Carrier Chassis
    Provides mobility and structural support for the entire crane assembly, includes engine, transmission, and suspension system
    Material: High-strength steel frame with rubber tires or tracks
  • Superstructure
    Rotating platform that houses the operator's cab, boom, and lifting mechanisms, mounted on slewing ring
    Material: Alloy steel construction with hydraulic rotation system
  • Telescopic Boom
    Extendable lifting arm composed of multiple nested sections that slide out hydraulically to increase reach
    Material: High-strength steel sections with hydraulic extension cylinders
  • Hydraulic System
    Provides power for boom extension/retraction, lifting operations, and outrigger deployment through pressurized fluid
    Material: Hydraulic pumps, valves, cylinders, hoses, and hydraulic fluid
  • Outriggers
    Extendable stabilizing legs that deploy to ground level to create a stable lifting platform and distribute load
    Material: Steel beams with hydraulic extension and float pads
  • Hoist Mechanism
    Winch and wire rope system that raises and lowers loads, controlled from operator's cab
    Material: Steel wire ropes, drum, motor, and braking system
  • Operator's Cab
    Control station with instrumentation, joysticks, and monitoring systems for crane operation
    Material: Steel and glass enclosure with ergonomic controls and seating
  • Load Moment Indicator
    Computerized safety system that monitors load weight, boom angle, and radius to prevent overload conditions
    Material: Electronic sensors, display unit, and processing unit
  • Jib Extension Optional
    Optional lattice or telescopic extension mounted at boom tip to increase lifting height and reach
    Material: Steel lattice structure or telescopic sections

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Mobile Crane.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (mechanical lifting system)
other spec: Max wind speed: 20 m/s (operational limit), Ground bearing pressure: 1-10 kg/cm² depending on outrigger configuration
temperature: -20°C to +50°C (operational range)
Media Compatibility
✓ Steel beams and structural components ✓ Precast concrete elements ✓ Heavy machinery and equipment
Unsuitable: Underwater or submerged lifting operations (not designed for aquatic environments)
Sizing Data Required
  • Maximum lifting capacity (tons)
  • Required boom length/radius (meters)
  • Site ground conditions and required mobility

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wire rope degradation
Cause: Fatigue from repeated bending over sheaves, corrosion due to environmental exposure, and abrasive wear from contact with drum grooves or external surfaces.
Hydraulic system failure
Cause: Contamination of hydraulic fluid (particles, water, air), seal degradation leading to leaks, and pump cavitation due to improper fluid levels or viscosity.
Maintenance Indicators
  • Unusual grinding or knocking noises from the boom or hydraulic system during operation
  • Visible fluid leaks (hydraulic oil, gear oil) or excessive play/wobble in structural joints
Engineering Tips
  • Implement a strict lubrication and contamination control program for hydraulic systems, including regular fluid analysis and filtration maintenance.
  • Conduct periodic non-destructive testing (e.g., magnetic particle inspection) on critical welds and structural components to detect fatigue cracks early.

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 4309:2010 - Cranes - Wire ropes - Care, maintenance, installation, examination and discard ANSI/ASME B30.5 - Mobile and Locomotive Cranes DIN EN 13000:2010 - Cranes - Mobile cranes

Quoted from the published standard.

Manufacturing Precision
  • Boom section alignment: +/- 1.5 mm per meter length
  • Wheelbase parallelism: +/- 3 mm across full span
Quality Inspection
  • Load Testing to 125% of rated capacity
  • Non-Destructive Testing (NDT) of critical welds using Magnetic Particle Inspection

Manufacturers of Mobile Crane

2 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.

Quanzhou Bole Automation Engineering Co., Ltd.
Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Zoomlion Heavy Industry Science & Technology Co., Ltd
Hunan, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
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Manufacturing capability
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Inspection readiness
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Frequently Asked Questions

What is the typical lifting capacity range for mobile cranes?

According to the directory, the maximum lifting capacity typically ranges from 25 to 220 metric tons, depending on the boom configuration and radius. Always verify the specific capacity for the model you are considering with the manufacturer.

What standards are relevant for mobile crane verification?

Relevant standards include ISO 4305 for lifting capacity, ISO 3046-1 for engine power, and IEC 60529 for ingress protection. These are reference standards; confirm compliance with the supplier.

How does the mobile crane ensure stability during lifting?

Stability is ensured by extending outriggers to create a stable base, and by using load moment indicators and computer-controlled systems that monitor load and prevent overload conditions. The operating radius and boom angle also affect stability.

What are the typical operating temperature and pressure ranges?

The operating temperature range is typically -20 to 50 degrees Celsius, and the hydraulic operating pressure is typically 25 to 35 MPa. These are reference ranges; verify for your specific application.

Data Basis

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

Preliminary Technical Classification
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