Outrigger Pads

Description

Molecular Weight: Standard grade ≥ 3 million g/mol; medium-to-heavy-duty grade ≥ 4 million g/mol; specialized grades for heavy-duty wind power and high-tonnage cranes range from 5 million to 7 million g/mol. High molecular weight ensures excellent impact resistance, compressive strength, and wear resistance.
Material Density: 0.93–0.96 g/cm³. The material is lightweight—weighing only one-eighth of a steel plate of the same dimensions—facilitating manual handling, on-site installation, and relocation.
Product Types: Available in standard natural (uncolored), black UV-resistant/weather-resistant, anti-static/explosion-proof, and heavy-duty toughened versions. These are suitable for various operating conditions, including indoor construction sites, outdoor field environments, oilfield and chemical operations, and heavy-duty lifting applications.

Tensile Strength: ≥ 30 MPa; excellent toughness, resistant to cracking or breaking during dragging and lifting operations.
Compressive Strength (10% strain): ≥ 28–55 MPa (≥ 30 MPa for light equipment; ≥ 50 MPa for heavy equipment over 50 tons); resistant to indentation or permanent deformation under long-term load.
Charpy Notched Impact Strength: ≥ 90–160 kJ/m²; excellent low-temperature impact resistance; no brittle cracking or edge chipping in environments as cold as -50°C.
Elongation at Break: ≥ 120%; high toughness with no risk of brittle failure; capable of cushioning instantaneous impact loads during lifting.
Load-Bearing Capacity: Uniformly distributed load capacity of 60–100 tons for 50mm thick pads; 150–300 tons for 80–100mm thick pads; 300–600 tons for 120–200mm thick pads.
Thickness and structural reinforcement can be customized based on equipment tonnage.
Fatigue Resistance: Permanent deformation < 0.6 mm after 10,000 heavy-duty load cycles; resistant to collapse or deformation under repeated rolling loads.

Operating Temperature Range: -50°C to +80°C; stable performance in extreme temperatures—does not become brittle in winter or soften/deform in summer heat.
Water Absorption: <0.01% (negligible); does not swell, delaminate, or deform in rain, muddy job sites, or humid environments.
Anti-slip Performance: Surface available with diamond or ribbed anti-slip patterns; static friction coefficient of 0.22–0.35 effectively prevents outrigger slippage and ensures lifting safety.
Corrosion Resistance: Resistant to acids, alkalis, saltwater, oil, and cement slurry; does not rust, rot, or mold—suitable for demanding conditions in chemical plants, ports, and mines.
Insulation Properties: Volume resistivity >10¹⁰ Ω·cm; excellent insulation allows for use in power utility construction and live-line work, eliminating electrical conduction risks.

Small Truck-Mounted Cranes (12–25 tons): Select pads with 3 million molecular weight and 50mm thickness.
Mobile Cranes (50–130 tons): Select UV-resistant pads with 4 million molecular weight and 80–100mm thickness.
Heavy-Duty/Wind Power/Crawler Cranes (Over 200 tons): Select pads with >5 million molecular weight and 120–200mm thickness; options available with embedded steel plate reinforcement.
Oilfields, Chemical Plants, and Explosion-Proof Sites: Use specialized anti-static modified pads.
Long-term Outdoor Operations: Must use black, UV-resistant, weather-modified pads to prevent aging and cracking.

Service Life: Up to 50+ years in dry indoor conditions; 25–35 years for outdoor UV-resistant modified versions—far exceeding the lifespan of wooden or standard plastic pads.
Cushioning and protection: Effectively disperses the concentrated pressure from outriggers, protecting asphalt surfaces, lawns, paved areas, and roadbeds from crushing or damage.
Environmental friendliness: The material is non-toxic and odorless, recyclable, and free from preservative chemical contamination, making it an eco-friendly choice.