BL Leaf Chain: Features, Applications, and Maintenance Guide
Leaf Chain
Leaf chain is a type of industrial chain specifically designed for lifting and material handling applications. Unlike roller chains, leaf chains consist of link plates and pins without rollers, typically operating on pulleys.
Leaf chains are used in a wide range of applications including forklifts, lifting equipment, cranes, and material handling equipment. Different series such as AL (American Light) Leaf Chain, EL-LL (European Light), and BL-LH (Leaf Heavy) Leaf Chain have their uses, but the BL series is more common due to its high strength and modern needs.
BL Series Leaf Chains
BL series leaf chains comply with ANSI B29.8 and other international standards and are engineered for heavy-duty lifting applications.
High Strength: BL series leaf chains utilize thicker link plates, providing superior tensile strength for heavy loads.
Durability: The robust construction ensures long-term performance even in harsh environments.
BL Series Leaf Chain VS. AL Series Leaf Chain
| Feature | ||
| Material | High-strength aluminum alloy | High-grade Steel |
| Load Capacity | Lower | Higher |
| Strength | Lower tensile | Higher tensile |
Weight | Lighter | Heavier |
Construction | Link plates that are similar in size and thickness to ANSI standard roller chains | Thicker and larger link plates |
Corrosion Resistance | Excellent | Requires additional protection |
Cost | More Expensive | More cost-effective |
BL series leaf chains perform better in heavy-load applications compared to AL series (light-duty leaf chains). While AL series chains are more lightweight and suitable for applications with height restrictions, BL series chains offer enhanced strength and durability, making them ideal for new equipment designs.
BL Leaf Chain Selection
Understanding BL Leaf Chain Model Numbers
The model numbers of leaf chains indicate their specifications. For example, the BL834 leaf chain:
"BL": Denotes the BL series (heavy-duty leaf chain).
"8": Refers to a pitch of 8/8 inch (1 inch or 25.4mm).
"34": Indicates a plate arrangement of 2x3 (two outer plates and three inner plates).
BL834 Leaf Chain
- Pitch(P): 25.400 mm
- Plate lacing: 3×4
- Plate depth(h2): 24.13 mm
- Plate thickness(T): 4.00 mm
- Pin diameter(d2): 9.54 mm
- Pin length(L): 33.76 mm
- Tensile strength: 129.0/29318 kN/lbf
- Weight per meter: 4.2 kg/m
Applications of BL Series Leaf Chains
BL series leaf chains perform exceptionally across various industries, including:
Automotive Manufacturing: Lifting heavy vehicle components.
Food Processing: Handling heavy loads on production lines.
Construction: Used in cranes and lifting platforms.
Forklift Industry: Ensuring efficient cargo lifting operations.
Leaf Chain Maintenance and Safety Tips
To extend the lifespan of leaf chains and ensure safety, consider the following maintenance tips:
Regular Inspection: Check for wear and tear, especially at pin and plate connections.
Proper Lubrication: Use specialized lubricants to reduce friction and wear.
Correct Installation: Avoid excessive stretching or twisting and ensure compatibility with pulleys.
Safety Precautions: Select leaf chains with a tensile strength exceeding the actual load. For example, BL634 supports loads up to 21,500 lbs, but maintaining a safety margin is recommended.
CTS® | Leaf Chain Supplier
If you want to know more about leaf chains or to get a quote for leaf chains, please contact us.
CTS®-ChinaTransmissionS is a professional power transmission products supplier with over 14 years in the power transmission industry. Visit our website for more information or to explore our product range.
