Leaf Chains-LH Series Product Introduction

Core Design & Construction

• Heavy - Duty Plate Design: The link plates adopt ANSI roller chain dimensions, but the pin diameter and plate thickness are enhanced to match the next - larger chain size, significantly boosting tensile strength and wear resistance.

• Precision Assembly: Outer links are press - fitted to pins, and pins are riveted to prevent rotation. Center links are slip - fitted to pins for flexibility, with the number of link plates adjustable based on lacing requirements.

• Material & Heat Treatment: Typically made of high - grade alloy steel (such as 40Mn) with quenching and tempering heat treatment, ensuring optimal mechanical properties and a tensile strength 15 - 20% higher than standard requirements.

Key Specifications & Numbering System

Numbering Interpretation (Taking LH1266 as an example)

Common Sizes & Typical Parameters

• Pitch: 19.05 mm

• Pin Diameter: 6.35 mm

• Plate Thickness: 3.18 mm

• Minimum Tensile Strength: 112 kN

• Weight: 3.2 kg/m (varies by lacing)

Performance Advantages

1. High Load Capacity: Engineered for heavy - duty cycles, shock loads, and high - intensity industrial use, outperforming LL/AL series in load - bearing capacity.

2. Superior Fatigue Resistance: The robust plate design and heat - treated components ensure long - term durability under repeated stress.

3. Corrosion Resistance Options: Available in stainless steel or with delta - tone coating, passing 5% salt spray tests for up to 800 hours without hydrogen embrittlement risks.

4. Standard Compliance: Fully compliant with global standards, facilitating interchangeability and integration with international equipment.

Applications

• Forklift masts for load lifting

• Counterbalance chains in machine tools

• Drilling rigs, aerial work platforms, and textile machinery for vertical lifting/horizontal traction

• Container pallet jacks and draw bench chains

Accessories & Customization

• Standard Accessories: Connecting links, end joints, and special connectors for easy installation and maintenance.

• Custom Solutions: Customizable pitch (from 19.05 mm to 76.2 mm), lacing, and surface treatments (black oxide, blueing, etc.) to meet specific application needs.

Installation & Maintenance Tips

1. Ensure proper alignment of sprockets/pulleys to avoid uneven wear.

2. Use recommended lubricants for optimal performance and longevity.

3. Never electroplate assembled chains to prevent hydrogen embrittlement.

4. Replace damaged chains entirely instead of individual components to ensure safety.

Compliance & Quality Assurance