INDUSTRY COMPONENT

Boom Connection Point

Critical structural interface connecting crane boom to superstructure for load transfer and articulation.

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Component Specifications

Definition
A precision-engineered structural interface component that mechanically connects the crane boom to the superstructure, designed to transfer operational loads (including vertical, horizontal, and torsional forces) while allowing controlled articulation for boom positioning. It incorporates bearing surfaces, pin connections, or hydraulic pivot mechanisms depending on crane design, and must maintain structural integrity under dynamic loading conditions during lifting operations.
Working Principle
Functions as a load-transfer pivot point using either mechanical pin-and-bushing systems or hydraulic articulation mechanisms. Distributes stresses from the boom through reinforced structural members into the superstructure frame while allowing rotational movement for boom elevation and sometimes limited lateral swing. Incorporates wear surfaces and lubrication systems to reduce friction and prevent premature failure.
Materials
High-strength alloy steel (typically ASTM A572 Grade 50 or equivalent), forged or cast with heat treatment (quenching and tempering) to achieve 450-550 MPa yield strength. Bearing surfaces may use hardened steel inserts or bronze bushings. Corrosion protection through galvanization or epoxy coating.
Technical Parameters
  • Weight 200-1500 kg
  • Design Life Minimum 20,000 operating hours
  • Pin Diameter 100-300 mm
  • Load Capacity 50-500 metric tons (design dependent)
  • Rotation Range 0-85 degrees elevation
  • Lubrication Type Centralized automatic grease system
Standards
ISO 4301, ISO 12488, DIN 15018, DIN 4114

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Boom Connection Point.

crane boom connection boom pivot point superstructure interface structural connection crane component load transfer joint Boom Connection Point Boom Connection Point in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Crane Superstructure

The upper structural framework of a floating crane that supports the lifting mechanism and operator cabin.

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Engineering Analysis

Risks & Mitigation
  • Structural fatigue failure
  • Bearing surface wear leading to play
  • Corrosion in marine environments
  • Improper lubrication causing seizure
  • Overload deformation
FMEA Triads
Trigger: Inadequate lubrication
Failure: Increased friction leading to accelerated wear and potential seizure
Mitigation: Implement automated lubrication system with monitoring alarms
Trigger: Cyclic loading beyond design limits
Failure: Fatigue cracking at stress concentration points
Mitigation: Regular non-destructive testing (magnetic particle or ultrasonic)
Trigger: Corrosive environment exposure
Failure: Reduced cross-section and strength due to material loss
Mitigation: Apply corrosion-resistant coatings and establish protective maintenance schedule

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Pin hole diameter: H7 tolerance, Surface finish: Ra 1.6 μm maximum on bearing surfaces
Test Method
Load testing to 125% of rated capacity, NDT (ultrasonic/magnetic particle) for crack detection, dimensional verification with CMM

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a boom connection point?

To safely transfer all operational loads from the boom to the crane superstructure while allowing controlled articulation for boom positioning.

How often should boom connection points be inspected?

Visual inspection before each shift, detailed inspection every 250 operating hours, and comprehensive NDT inspection annually or per manufacturer recommendations.

What are common failure modes for boom connection points?

Fatigue cracking at stress concentrations, bearing surface wear, corrosion in pin holes, and deformation from overload conditions.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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