In the realm of lifting and rigging, chains play a pivotal role as indispensable components. Nonetheless, it’s crucial to acknowledge that Load Chains, Lifting Chains, and Hand Chains each serve unique functions. Grasping the nuances between them facilitates the selection of the appropriate product, ultimately bolstering both safety and efficiency.
Load Chain
Load Chain is primarily used in manual and electric hoists, directly bearing loads and working with sprockets to lift heavy objects. It is typically made of high-strength alloy steel (G80 or G100 grade) for superior wear resistance and load capacity.
Lifting Chain
Lifting Chain is a broader term that includes Load Chain but also refers to chains used in lifting operations, such as sling chains. These are commonly used with cranes, lifting devices, and for securing heavy loads, and they comply with standards like EN818-2.
Hand Chain
Hand Chain is used for manual operation in hand chain hoists. It does not bear the load directly but is pulled manually to drive the internal gear mechanism, lifting or lowering it. It is usually made of low-carbon steel or stainless steel, with zinc or nickel plating for rust resistance. It is usually thinner than load chains, with common diameters between 3mm-6mm to ensure smooth pulling.
Application Scenarios
- Load Chain: This chain is utilized in both manual and electric hoists, where it is meticulously paired with sprockets to ensure precise and reliable lifting of loads.
- Lifting Chain: Designed for lifting operations, this chain is also used in sling configurations and is commonly found in cranes and other heavy-duty lifting equipment, facilitating the safe and efficient movement of heavy objects.
- Hand Chain: Typically employed in manual chain hoists, this chain allows for the manual operation of the hoist mechanism without requiring direct load-bearing, providing operators with greater control and maneuverability.
