When selecting a chain for a stage hoist, multiple factors must be comprehensively considered, including load-bearing requirements, usage environment, safety, durability, and maintenance costs.
Calculate Actual Load The rated load of the chain must be greater than or equal to the total weight of stage equipment (such as lighting, scenery, trusses, etc.), with a certain safety margin reserved (typically recommended to be 1.5-2 times the rated load).
Material Selection - Galvanization (hot-dip galvanizing or electro-galvanizing):
Offers strong rust resistance, making it a common choice for stage hoists (e.g., indoor theaters, touring performance equipment). Compared with stainless steel chains, galvanized chains cost 30%-50% less while providing similar rust resistance (especially in non-severely corrosive environments), making them a cost-effective choice for stage equipment.
Appearance: Galvanized coatings can exhibit a silver-white luster (electro-galvanized) or a gray matte texture (hot-dip galvanized), meeting the aesthetic requirements of stage equipment (particularly for exposed installations).
Safety Certification Choose chains certified by international standards, such as:
ISO 3077 (Safety Requirements for Short Link Chains for Lifting Purposes);
EN 818-7 (European Standard for Lifting Chains);
ASME B30.16 (American Society of Mechanical Engineers Standard).
For specific requirements, contact the professional service personnel of the manufacturer to select chains according to your different needs.