RCMA - Rotary Counterweighted Marine Arm
A single main counterweight assembly is used to balance the inboard and outboard sections of the arm, with an additional small countermight assembly to adjust inboard arm balancing.
DCMA - Double Counterweighted Marine Arm
Two counterweight assemblies balance independently the inboard and outboard sections of the arm, requiring less space for counterweight clearance behind the arm and avoiding any interference with jetty piping/ equipment even when the arm is moved out of its normal separating range.
Supported Type Arms
For the transfer of LNG, refrigerated, high density or high specific gravity products, these arms are also available in a different configuration - the "S" or supported version - where the fluid line is separate from the mechanical structure:
. RCMA - S
. DCMA - S