Introduction
Levingston Offshore and Ram Machine Tooling, Inc. have combined their years of experience and vast knowledge from the offshore oil and gas industry to develop the Leg Encircling Crane (LEC). The LEC is designed to function by working around the leg of the platform/deck, instead of working from a free standing pedestal. This offers more free space on the deck and allows the crane to rotate 360°.
Some of the models available are as follows:
RAMLEC600-140LR – This model is an API rated, ABS approved Leg Encircling Crane; it has a 140-foot lattice boom capable of lifting 600 kips at a 60-foot radius.
RAMLEC400-120LR – This model is an API rates, ABS approved Leg Encircling Crane; it has a 120-foot lattice boom capable of lifting 400 kips at a 60-foot radius.
We are committed to our customers and are open to suggestions to modify the design to better suit your specific requirements. LEC’s may be manufactured for a wide range of capacity levels varying from 10 ton to 800 ton capacity. The cranes may be designed to encircle a lattice leg or a pipe leg on the vessel as needed. Ram Machine Tooling, Inc. has been designing and manufacturing offshore marine cranes since 1997 and specializes in the design and manufacture of LEC’s.
Crane Features and General Information
LEC’s consist of the below key features (***):
- Custom bearing with internal swing drive gear
- A-frame type gantry of plate construction
- Ladders and platforms for access with safety cage
- Fully enclosed operators cab with console to house all control functions and gauges with Air Conditioning, Windshield Wipers, and Lighting.
- Load cell for main hoist
- All sheaves include anti-friction bearings
- Flood light
- All hoists are Planetary Geared and employ power load lowering (no freewheeling) against a hydraulic counterbalance valve with internal, automatically applied spring-loaded fail-safe brakes.
- Each crane consists of Safety Equipment such as positive boom stops, fire extinguisher, signal horn, and other basic safety equipment.
- The pedestal, gantry, boom, piping, and other equipment are sandblasted and painted using a three-coat epoxy/polyurethane marine paint system.