THERN
Frequently asked questions
Common questions about THERN from 3G Electric.
What is the difference between THERN wall-mount, socket-mount, and pedestal-mount bases?
THERN wall-mount bases (e.g., 5BW10, 5BW20) are designed to attach a davit crane mast to a vertical structure such as a wall or column. Socket-mount bases (e.g., 5BF10, 5BF20) accept the mast directly and are typically used with a separate foundation or embedded in concrete. Pedestal-mount bases (e.g., 5BP10, 5BP20, 5ABP1, 5ABP2) provide a freestanding foundation for the mast, often bolted to a floor or structural base. The choice depends on the installation environment and available support structures.
What mast diameters are available for THERN davit crane mounting bases?
THERN mounting bases are available for two common davit crane mast diameters: 4.5 inches and 5.56 inches. For example, part numbers ending in '10' (such as 5BW10, 5BF10, 5BP10, 5ABP1) accommodate a 4.5-inch mast, while those ending in '20' (such as 5BW20, 5BF20, 5BP20, 5ABP2) accommodate a 5.56-inch mast. It is important to match the base to the mast diameter of your davit crane system to ensure proper fit and safe operation.
Are THERN mounting bases made of steel or aluminum?
THERN mounting bases are available in both steel and aluminum constructions. Steel bases (e.g., 5BW10, 5BW20, 5BF10, 5BF20, 5BP10, 5BP20) offer high strength and durability, making them suitable for heavy-duty applications. Aluminum bases (e.g., 5ABP1, 5ABP2) are lighter in weight, which can be advantageous for certain installations where weight is a consideration. The material choice should be based on load requirements, environmental conditions, and installation constraints.
How do I identify the correct THERN mounting base for my davit crane?
To identify the correct THERN mounting base, first determine the mast diameter of your davit crane (4.5 inches or 5.56 inches). Then, select the mount type based on your installation: wall-mount (5BW series), socket-mount (5BF series), or pedestal-mount (5BP or 5ABP series). The part number encodes these attributes: '5BW' for wall, '5BF' for socket, '5BP' for steel pedestal, '5ABP' for aluminum pedestal; the last two digits indicate mast diameter ('10' for 4.5 inches, '20' for 5.56 inches). Always verify with the manufacturer's documentation.
What are the load ratings for THERN davit crane mounting bases?
Load ratings for THERN mounting bases depend on the specific model, material, and installation method. THERN provides engineering data for each base, and the rating should be confirmed with the manufacturer's specifications. Factors such as anchor bolt size, concrete strength, and mounting orientation affect the overall capacity. For safe operation, consult THERN's technical documentation or contact 3G Electric for assistance in obtaining the relevant load charts. Never exceed the rated capacity of the mounting base or the davit crane system.
Can THERN mounting bases be used with any davit crane brand?
THERN mounting bases are designed to accept davit crane masts with specific diameters (4.5 inches or 5.56 inches). While they are manufactured by THERN, they may be compatible with davit cranes from other brands if the mast diameter and mounting interface match. However, compatibility should be verified with the davit crane manufacturer to ensure safe and proper fit. THERN mounting bases are engineered to work with THERN davit cranes, but in practice, they can be used with other systems if the specifications align. Always confirm compatibility before installation.
