Description

Gravity Knuckle Beam Type Davit – Space-Efficient, Dual-Arm Launching System by CMEC FJCN

The Gravity Knuckle Beam Type Davit by CMEC FJCN is an advanced, space-saving launching appliance engineered to deploy and recover lifeboats and rescue boats safely and reliably. This system is especially ideal for vessels and offshore platforms where limited vertical and horizontal clearance demands an innovative, compact launching solution.

Utilizing a dual-arm design with knuckle hinges, this davit system offers a controlled slewing motion that swings the boat outward and downward in a single smooth operation. It functions primarily through gravity-based mechanics, eliminating the need for complex electrical systems during emergencies. Once deployed, the boat descends into the water using a gravity winch, which can also be fitted with manual or hydraulic backup systems for retrieval.

This system is widely installed on tankers, container ships, cruise vessels, oil platforms, and FPSOs, offering a trusted launching method for Totally Enclosed Lifeboats, Partially Enclosed Lifeboats, and Rescue Boats.

Key Features and Benefits:

• Knuckle beam folding arms – minimize stowed dimensions

• Gravity-powered operation – ensures fail-safe launching

• Hydraulic or manual hoisting options – easy recovery post-drills

• Compact deck footprint – ideal for retrofit or tight deck plans

• Self-locking safety features – prevents accidental deployment

• Marine-grade anti-corrosive materials – built for harsh sea conditions

• Meets international marine safety standards including SOLAS, IMO, and LSA Code

The system is composed of a folding knuckle arm frame, rotational slewing base, gravity winch, wire rope drum, and shock absorption system for smooth motion. The dual-arm folding mechanism is particularly useful for decks with overhead obstructions or vessels requiring low-profile equipment.

Technical Specifications:

• Working Load Capacity: 18–40 kN

• Lowering Speed: 0.3–1.0 m/s (adjustable by load and descent angle)

• Arm Type: Dual folding knuckle beams with rotational base

• Winch Drive: Gravity, manual, or hydraulic

• Structure Material: Carbon steel or stainless steel with epoxy marine coatings

• Operating Range: 0°–90° outward swing

• Environmental Resistance: Saltwater, UV, and extreme temperatures

• Certifications: DNV, ABS, BV, CCS, LR, NK

The Gravity Knuckle Beam Type Davit is factory-tested under full-load and emergency conditions. Each unit is supplied with detailed operation manuals, spare parts, and optional on-site training. CMEC FJCN also offers technical support and installation supervision globally, ensuring safe deployment and compliance throughout the system’s lifetime.

This is a durable, low-maintenance, and cost-effective solution for any vessel requiring a reliable davit system in a compact space.