| About BL Series Leaf Chain
BL (LH) series leaf chains, also referred as forklift chain, made to ASME and ISO standards are constructed of thicker plates and larger pins than AL series leaf chain of the same pitch.
The plates and pin diameter have the same sizes of next larger size in roller chains.
For example, BL6 (LH12) uses plate thickness and pin diameter of ANSI 80 roller chain.
Having high strength and durability, BL series leaf chains are commonly used for lifting equipment, forklift trucks, container lift trucks and material handling applications.
For corrosive environment, corrosion resistant coating is available.
Are you looking for wear resistant and durable leaf chains for your container lift truck?
Check our Harbor Leaf Chain !
| Features
- Higher strength and longer lifetime than AL series leaf chain of the same pitch.
- Heat treatment for improved hardness and strength
- Shot peening for improved fatigue strength
- Pre-stretched to minimize initial stretch
- Pre-lubricated from the factory
- Corrosion resistant coating available
| How to select leaf chain for your application
1. Determine the type of leaf chains and service factor from below application table.
| Shock Load | Application | Chain Type | Chain Speed | Service Factor |
|
Smooth Running |
Smooth start & stop Slow operating Gentle vibration |
AL Series |
Less than 100 ft. / min. |
1.0 |
|
Moderate Shock |
Frequent start & stop Constant variation of load Reverse operating |
BL Series |
1.3 |
|
|
Heavy Shock |
Sudden start & stop Constant variation of load Reverse operating |
BL Series |
1.5 |
2. Multiply required working load of your lead chain by above service factor and below safety factor to obtain the tensile strength.
| Chain Type | Chain Speed | Max. numbers of Reciprocation | Safety Factor |
| AL Series |
Less than 100 ft. / min. | Less than 100 times per day | 12 |
| BL Series |
Less than 100 ft. / min. | Less than 1000 times per day | 9 |
3. Select proper leaf chain with the minimum tensile strength above the value obtained in step 2.
Working Load x Service Factor x Safety Factor ≥ Leaf Chain with Minimum Tensile Strength
Working load includes attachments weight, inertia force, and impact force.
