Editorial Technical Reference

Outrigger Boxes / Mounts

This page explains how Outrigger Boxes / Mounts is classified within Other Transport Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Structural mounting components that provide stability and support for carrier chassis during stationary operations.

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

Product Specifications

Technical details and manufacturing context for Outrigger Boxes / Mounts

Definition
Outrigger boxes or mounts are structural components used in carrier chassis systems to provide stable mounting points for outrigger legs. These components are engineered to withstand significant vertical and lateral forces, ensuring that the chassis remains stable during loading, unloading, or stationary work. They are typically fabricated from high-strength or alloy steel and are designed to distribute operational loads across a wider footprint, preventing tipping and enhancing overall safety. The mounts serve as reinforced attachment points on the chassis frame, allowing outrigger legs to extend and retract while maintaining structural integrity under stress. Key parameters include rated load capacity (50–200 kN per outrigger, per ISO 10567), bore diameter (80–160 mm, ISO 6020-2), stroke length (300–600 mm, ISO 6020-2), mounting hole diameter (18–30 mm, ISO 273), bolt circle diameter (120–200 mm, ISO 273), material grade (Q345B–Q460C, GB/T 1591), surface treatment (Zn–Ni 8–12 μm, ASTM B841), operating temperature (-40–85°C, ISO 16750-4), IP rating (IP54–IP65, IEC 60529), weight (25–80 kg), and footprint dimensions (400–800 mm length × width). These values are reference ranges and must be verified for the specific model and application. Standards listed are procurement references and do not imply certification. Always confirm model-specific values and standards with the legal manufacturer or supplier.
Working Principle
Outrigger boxes/mounts are reinforced attachment points on the carrier chassis frame. When deployed, outrigger legs extend from these mounts to contact the ground, transferring the vehicle's weight and operational loads to a wider, more stable footprint. The mounts provide mechanical connection points that allow for controlled extension/retraction while maintaining structural integrity under stress. They are designed to handle high vertical and lateral forces, ensuring stability during stationary operations.
Common Materials
High-strength steel, Alloy steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Load Capacity50–200 kNPer outrigger; higher values require reinforced mounting points.ISO 10567
Bore Diameter80–160 mmDetermines thrust and retraction speed.ISO 6020-2
Stroke Length300–600 mmAffects leveling range and stability.ISO 6020-2
Mounting Hole Diameter18–30 mmMust match chassis bolt pattern.ISO 273
Bolt Circle Diameter120–200 mmEnsures proper load distribution.ISO 273
Material GradeQ345B–Q460CHigher grades for heavy-duty applications.GB/T 1591
Surface TreatmentZn–Ni 8–12 μmCorrosion resistance for outdoor use.ASTM B841
Operating Temperature-40–85 °CSeals degrade above 85°C.ISO 16750-4
IP RatingIP54–IP65Protects against dust and water jets.IEC 60529
Weight25–80 kgAffects vehicle payload and fuel efficiency.
Footprint Dimensions400–800 mmLength × width; must fit chassis envelope.

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
  • Mounting Plate Part
    Primary structural interface between outrigger and chassis frame
    Material: High-strength steel
  • Reinforcement Gussets Part
    Provide additional strength at stress points and prevent deformation
    Material: Steel
  • Bushing/Bearing Housing Part
    Houses pivot points for outrigger leg movement
    Material: Bronze alloy or hardened steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Outrigger Boxes / Mounts.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (structural load bearing only)
other spec: Max static load capacity: 50,000 lbs per box, Corrosion resistance: C5-M marine grade
temperature: -40°C to 120°C
Media Compatibility
✓ Heavy equipment chassis (cranes, drilling rigs) ✓ Concrete foundations ✓ Steel support structures
Unsuitable: High-vibration dynamic operations (e.g., mobile transport without stabilization)
Sizing Data Required
  • Chassis weight and load distribution
  • Ground surface type and bearing capacity
  • Required stability factor (safety margin)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Structural fatigue cracking
Cause: Cyclic loading from equipment vibration and operational stresses exceeding material endurance limits, often accelerated by stress concentrations at weld points or bolt holes.
Corrosion-induced weakening
Cause: Exposure to moisture, chemicals, or salt environments leading to material degradation, particularly in crevices or at dissimilar metal interfaces where galvanic corrosion occurs.
Maintenance Indicators
  • Visible cracks or deformation in the box structure or mounting points
  • Abnormal vibration or noise from equipment indicating loose or compromised mounts
Engineering Tips
  • Implement regular torque checks on mounting bolts using calibrated tools to maintain proper preload and prevent loosening from vibration.
  • Apply protective coatings and implement corrosion monitoring in vulnerable areas, particularly at weld seams and fastener locations.

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
ANSI/ASME B30.5-2021 - Mobile and Locomotive Cranes DIN EN 13000:2010 - Cranes - Mobile Cranes

Quoted from the published standard.

Manufacturing Precision
  • Bore Diameter: +/-0.05mm
  • Mounting Surface Flatness: 0.2mm per meter
Quality Inspection
  • Magnetic Particle Inspection (MPI)
  • Dimensional Verification with CMM

Manufacturers of Outrigger Boxes / Mounts

Manufacturer profiles associated with Outrigger Boxes / Mounts.

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Frequently Asked Questions

What is the function of an outrigger box/mount?

Outrigger boxes/mounts provide rigid mounting points on a carrier chassis for outrigger legs. They distribute operational loads, prevent tipping during stationary work, and enhance chassis stability.

What materials are typically used?

High-strength steel and alloy steel are commonly used, with material grades such as Q345B–Q460C (per GB/T 1591) as reference.

What standards apply to these components?

Relevant standards include ISO 10567 for load capacity, ISO 6020-2 for cylinder dimensions, ISO 273 for mounting holes, and IEC 60529 for IP rating. These are verification references, not certifications.

How do I select the right outrigger mount?

Selection depends on required load capacity, operating pressure, stroke length, mounting hole pattern, and chassis envelope. Verify all parameters with the manufacturer for your specific application.

Data Basis

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

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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