Stabilizer Legs: Load Capacity 5000-15000 kg per leg

Component Specifications

Definition

Stabilizer legs are structural support components mounted on the chassis of backhoe loaders, designed to extend outward and downward to increase the machine's footprint and prevent tipping during heavy-duty operations like excavation, trenching, or material handling. They transfer operational loads to the ground, minimizing machine movement and enhancing precision and safety.

Working Principle

Stabilizer legs operate by extending hydraulically or mechanically from the machine's frame to contact the ground. When activated, they enlarge the machine's base of support and spread the operational forces over it, so that the stabilising moment about the tipping line is increased. This reduces stress on the chassis and prevents lateral or forward tipping during dynamic loading conditions.

Materials

High-strength steel (e.g., ASTM A572 Grade 50 or equivalent), with hydraulic cylinders made from chromed steel rods and hardened steel tubes. Wear surfaces may include replaceable steel pads or shoes.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	50-200 kg per leg
Load Capacity	5000-15000 kg per leg
Deployment Time	10-30 seconds
Extension Length	500-1500 mm
Operating Pressure	150-250 bar

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

Standards

ISO 3457, DIN 15018

Parent Products

This component is used in the following industrial products

Backhoe Loader

A versatile construction machine combining a tractor, loader, and backhoe for excavation and material handling tasks.

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Engineering Analysis

Risks & Mitigation

Structural failure due to overloading
Hydraulic leakage
Ground instability causing leg sinking
Improper deployment leading to machine tip-over

FMEA Triads

Trigger: Excessive load beyond design limits
Failure: Leg bending or fracture
Mitigation: Implement load monitoring systems and operator training on weight limits

Trigger: Hydraulic seal wear
Failure: Fluid leakage and reduced extension force
Mitigation: Regular maintenance and seal replacement schedules

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±2 mm for leg alignment, ±5% for load capacity

Test Method

Static load testing per ISO 3457, hydraulic pressure testing, and fatigue analysis

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Stabilizer Legs

Manufacturer profiles associated with Stabilizer Legs.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of stabilizer legs on a backhoe loader?

The primary function is to provide additional stability by extending the machine's base, preventing tipping during digging or lifting operations, and ensuring operator safety and operational precision.

How do stabilizer legs differ from outriggers?

Stabilizer legs are typically integrated into the machine's design for routine stability during operation, while outriggers are often used for temporary, heavy-lift scenarios and may be detachable or more robust.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Stabilizer Legs