Editorial Technical Reference

Rough Terrain Crane

This page explains how Rough Terrain 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 mobile crane designed for off-road operation on rough, uneven terrain with enhanced stability and mobility features.

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

Product Specifications

Technical details and manufacturing context for Rough Terrain Crane

Definition
A rough terrain crane is a specialized mobile lifting machine engineered for construction, infrastructure, and industrial applications on unpaved, uneven, or challenging ground conditions. It features a robust chassis with all-wheel drive, high ground clearance, and large, heavy-duty tires to navigate rough surfaces while maintaining stability during lifting operations. Unlike standard truck-mounted cranes, rough terrain cranes are self-propelled and optimized for off-road mobility without requiring separate transport vehicles. The machine integrates a telescopic boom, hydraulic systems, and a superstructure that rotates on a carrier. It is commonly used in sites where access is difficult, such as oil fields, mining areas, and remote construction projects. The crane's design prioritizes stability on slopes and soft ground, with outriggers that extend horizontally to provide a wide support base. Key parameters include a maximum lifting capacity of 50–220 metric tons, a maximum boom length of 30–80 meters, and a maximum hook height of 40–100 meters. Engine power ranges from 150–400 kilowatts, and travel speed is 20–40 kilometers per hour. The crane can climb grades of 30–60 percent and operates in temperatures from -20°C to +50°C with a cold-weather package. The operating weight is 40–120 tons, and the turning radius is 8–15 meters. Hydraulic system pressure is 25–35 MPa, and electrical enclosures meet IP54–IP65 ratings. Materials include high-strength steel, alloy steel, and rubber composites. These specifications are reference ranges; verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The crane operates through a combination of mechanical, hydraulic, and electrical systems. A diesel engine powers hydraulic pumps that provide pressurized fluid to hydraulic cylinders and motors. These control the boom extension/retraction, lifting/lowering of the hook via wire ropes and sheaves, rotation of the superstructure on the carrier, and outrigger deployment for stabilization. The operator uses control levers and electronic interfaces in the cab to precisely manipulate these functions while monitoring load indicators and stability systems.
Common Materials
High-strength steel, Alloy steel, Rubber composites
Technical Parameters
ParameterTypical rangeNotes & selection driver
Maximum Lifting CapacityRequired50–220 metric tonsThe highest weight the crane can safely lift at minimum radius under ideal conditionsISO 4305
Maximum Boom LengthRequired30–80 metersFully extended length of the main telescopic boom without jib attachment
Maximum Hook HeightRequired40–100 metersMaximum vertical reach of the hook from ground level with boom fully extended
Engine PowerRequired150–400 kilowattsRated power output of the diesel engine that drives hydraulic systems and propulsionISO 9249
Travel SpeedRequired20–40 kilometers per hourMaximum road speed when traveling with boom retracted and secured
Outrigger SpreadRequired5–10 metersMaximum horizontal distance between extended outrigger pads for stability
Gradeability30–60 percentMaximum slope angle the crane can climb while traveling, expressed as percentage gradeISO 1585
Operating Pressure25–35 MPaHydraulic system pressure for crane functions.
Operating Temperature-20–+50 °CExtended range available with cold-weather package.
IP RatingIP54–IP65For electrical enclosures and connectors.IEC 60529
Operating Weight40–120 tIncluding counterweight and full fuel tank.
Turning Radius8–15 mMeasured at the outermost point of the chassis.

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 structural foundation, houses propulsion system, and supports the rotating superstructure
    Material: High-strength steel frame with reinforced cross members
  • Telescopic Boom
    Extendable lifting arm composed of nested sections that provide vertical and horizontal reach
    Material: High-strength alloy steel with wear-resistant sliding surfaces
  • Hydraulic Outriggers
    Extendable stabilizing legs with pads that distribute load to ground during lifting operations
    Material: Steel cylinders with hardened pins and rubber/composite pads
  • Superstructure
    Rotating platform that houses operator cab, boom controls, hoist mechanism, and counterweight
    Material: Steel welded structure with protective coatings
  • Operator Cab
    Enclosed control station with ergonomic seating, instrument panels, and visibility windows
    Material: Steel safety cage with polycarbonate windows and climate control
  • Hoist System
    Mechanism for raising and lowering loads using wire rope, drum, and hydraulic motor
    Material: Steel drum, alloy steel wire rope, bronze sheaves
  • Counterweight Part
    Removable weights that balance the crane during lifting operations to prevent tipping
    Material: Cast iron or steel plates
  • Jib Extension Optional
    Optional lattice or telescopic attachment that extends beyond main boom for additional reach
    Material: Steel lattice structure or alloy steel tubes

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rough Terrain Crane.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (mechanical system)
other spec: Maximum slope: 30% grade, Maximum wind speed: 20 mph operational, 50 mph survival
temperature: -20°C to +50°C
Media Compatibility
✓ Construction sites with uneven ground ✓ Oil and gas field operations ✓ Utility installation in rural areas
Unsuitable: Urban environments with strict noise/emission regulations
Sizing Data Required
  • Maximum lifting capacity (tons)
  • Maximum boom length (feet/meters)
  • Required ground clearance (inches/cm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wire rope degradation
Cause: Abrasive wear from dirt ingress, overloading, or improper spooling causing kinks and fatigue.
Hydraulic system leakage
Cause: Seal failure due to contamination, high pressure spikes, or hose abrasion from terrain contact.
Maintenance Indicators
  • Unusual grinding or knocking noises from the boom or turntable during operation
  • Visible hydraulic fluid leaks under pressure, especially near cylinders or valves
Engineering Tips
  • Implement regular lubrication schedules with terrain-appropriate grease to protect pins, bushings, and wire ropes from abrasive wear
  • Use filtration systems and conduct periodic fluid analysis to monitor hydraulic oil cleanliness and prevent contamination-induced failures

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 - Cranes - Mobile cranes

Quoted from the published standard.

Manufacturing Precision
  • Boom section alignment: +/-0.5mm per meter
  • Hydraulic cylinder bore: +/-0.025mm
Quality Inspection
  • Load Testing to 125% of rated capacity
  • Non-Destructive Testing (NDT) of critical welds

Manufacturers of Rough Terrain Crane

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

SANY Group
Taiwan, 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 maximum lifting capacity of a rough terrain crane?

According to the directory reference, the maximum lifting capacity ranges from 50 to 220 metric tons, measured at minimum radius under ideal conditions. This value is a general range; the exact capacity depends on the specific model and configuration. Always consult the manufacturer's load charts for the actual crane.

Can a rough terrain crane travel on public roads?

Rough terrain cranes are designed for off-road mobility and typically have a travel speed of 20–40 km/h. They are not intended for high-speed highway travel. For road transport, they may require special permits or lowboy trailers. Check local regulations and the manufacturer's specifications for roadability.

What are the key stability features of a rough terrain crane?

Stability is enhanced by a wide outrigger spread (5–10 meters), all-wheel drive, high ground clearance, and heavy-duty tires. The crane also has a low center of gravity and stability monitoring systems. These features allow safe operation on slopes up to 60% grade, but always verify the specific gradeability for your model.

What standards apply to rough terrain cranes?

The directory lists ISO 4305 for lifting capacity, ISO 9249 for engine power, ISO 1585 for gradeability, and IEC 60529 for IP ratings. These standards are references for verification; they do not guarantee compliance. Confirm with the manufacturer that the specific model meets the required standards for your application.

Data Basis

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

Preliminary Technical Classification
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