Gantry Boat Hoist

Advantages of a Gantry Boat Hoist

✔ High Lifting Capacity – Can handle boats from 10 to 500+ tons, depending on model.
✔ Mobility – Rubber-tired versions can move boats around the yard without trailers.
✔ Space Efficiency – Allows vertical stacking in storage yards (unlike fixed lifts).
✔ Versatility – Works with sailboats, yachts, fishing vessels, and small ships.
✔ Fast Operation – Quicker than marine railways or floating dry docks.

 

Comparison with Other Boat Lifting Systems

Feature	Gantry Boat Hoist	Marine Railway	Floating Dry Dock
Mobility	High (if rubber-tired)	Low (fixed track)	Low (water-dependent)
Max Capacity	10–500+ tons	50–5,000 tons	1,000–100,000+ tons
Speed	Fast (minutes)	Slow (hours)	Moderate (hours)
Best For	Small to medium boats	Large ships	Massive vessels

 

Comparison with Other Boat Lifting Systems

Feature	Gantry Boat Hoist	Marine Railway	Floating Dry Dock
Mobility	✅ High (if rubber-tired)	❌ Fixed track	❌ Water-dependent
Max Capacity	10–500+ tons	50–5,000 tons	1,000–100,000+ tons
Speed	⚡ Fast (minutes)	🐢 Slow (hours)	🕒 Moderate (hours)
Space Needed	Compact storage	Long track area	Large water area
Best For	Small-medium boats	Large ships	Massive vessels

 

Lifting Capacity 320 tons
Span (Width) 3 - 12 meters (adjustable)
Lifting Height 3 - 10 meters
Working Class A3-A5 (light to medium duty)
Hoisting Speed 0.5 - 8 m/min (variable)
Main Beam Type Single/double girder (box-type)
Power Supply 220V/380V 3-phase or manual
Control Mode Pendant control/wireless remote
Hoist Type Electric chain hoist/wire rope hoist
Travel Drive Manual push or motorized
Corrosion Protection Hot-dip galvanized or marine-grade paint
Wind Resistance Up to Beaufort scale 6 (for outdoor use)
Operating Temp -20°C to +50°C

Gantry Boat Hoist Components: Detailed Breakdown

A Gantry Boat Hoist (or Boat Travel Lift) consists of several critical components that work together to safely lift, move, and store boats. Below is a detailed breakdown of its key parts:

 

1. Structural Components

A. Gantry Frame

Main Beams – Heavy-duty steel girders spanning the width of the boat.

Vertical Legs – Support the gantry and house lifting mechanisms.

Cross Bracing – Reinforces stability during lifting.

B. Base & Undercarriage

Wheel Assemblies – Heavy-duty rubber tires (for mobile units) or rail wheels (for fixed systems).

Axles & Suspension – Supports weight and absorbs shocks during movement.

Outriggers/Stabilizers (Optional) – Extendable legs for extra stability when lifting.

 

 

2. Lifting Mechanism

A. Hoist System

Electric or Hydraulic Winches – Provide lifting power (typically 2-4 winches).

Wire Ropes or Synthetic Slings – Connect the boat to the hoist (adjustable for hull shape).

Spreaders & Lifting Straps – Distribute weight evenly to prevent hull damage.

B. Trolley System

Motorized Trolley – Moves horizontally along the gantry beam for positioning.

Load Balancing Mechanism – Ensures even weight distribution.

 

3. Power & Drive System

A. Power Source

Diesel Engine – Common in mobile units for independent operation.

Electric Motor – Used in rail-mounted or shore-powered hoists.

Hybrid Systems – Combine diesel and electric for efficiency.

B. Drive & Steering

Wheel Motors – Power movement in mobile gantry hoists.

Steering Mechanism – Allows crab steering (diagonal movement) or 90-degree turns.

Braking System – Hydraulic or mechanical brakes for safe stopping.

 

4. Control & Safety Systems

A. Operator Controls

Control Cabin – Mounted on the gantry for visibility (some models use remote control).

Joystick/Console – Adjusts hoist speed, trolley movement, and steering.

B. Safety Features

Load Moment Indicator (LMI) – Prevents overloading.

Anti-Sway System – Minimizes boat swinging during lifting.

Emergency Stop & Backup Power – For sudden shutdowns.

Limit Switches – Prevents over-travel of trolley and hoist.

5. Optional & Advanced Features

Automated Positioning – GPS or laser-guided alignment.

Self-Propelled Movement – Remote-controlled travel in boatyards.

Corrosion-Resistant Coatings – For saltwater environments.

Adjustable Straps & Pads – Protects delicate hulls (e.g., fiberglass, wooden boats).

 

 

 

Common Maintenance Components (Wear & Tear Parts)

Wire Ropes / Slings (Inspect for fraying).

Hydraulic Hoses & Seals (Check for leaks).

Tires / Rail Wheels (Monitor tread wear).

Brake Pads & Bearings (Replace periodically).

Electrical Connections (Prevent corrosion).

 

Applications of Each Component

Component	Function
Gantry Frame	Supports entire structure
Winches & Slings	Lifts the boat
Trolley System	Positions boat over storage area
Steering Mechanism	Allows precise maneuvering
Load Sensors	Ensures safe lifting capacity

SKETCH

 

Main technical

 

High Lifting Capacity

Can handle boats from 10 to 500+ tons, making it suitable for yachts, fishing vessels, and small ships.

Mobility & Flexibility

Rubber-tired models can move boats around yards without trailers.

No need for permanent installations like marine railways.

Space Efficiency

Allows vertical stacking of boats in storage yards, maximizing space.

Faster than traditional dry docks or railways.

Versatility

Works with various hull types (fiberglass, aluminum, wood).

Adjustable slings and spreaders accommodate different boat shapes.

Quick Operation

Lifts boats in minutes, reducing downtime for maintenance.

Ideal for busy marinas and repair yards.

Safety Features

Load sensors prevent overloading.

Anti-sway systems minimize boat movement during lifting.

Cost-Effective

Lower infrastructure costs compared to fixed dry docks.

Reduces need for multiple handling equipment.

1. Marinas & Boat Yards

Dry docking for hull cleaning, painting, and repairs.

Winter storage by stacking boats vertically.

2. Shipbuilding & Repair

Launching and retrieving vessels during construction.

Handling sailboats, yachts, and small commercial boats.

3. Marine Transport

Loading/unloading boats onto trailers or trucks.

Relocating boats within storage facilities.

4. Emergency & Salvage Operations

Quickly lifting sunken or stranded boats.

Rescue operations in harbors.

5. Military & Government Use

Handling patrol boats, research vessels, and small naval craft.

 

The production process of a 200-ton mobile boat/marine lift crane involves several stages, from design and engineering to fabrication, assembly, and testing. Below is a detailed breakdown of the typical production process:

---

1. Design & Engineering

Conceptual Design: Engineers create initial sketches and 3D models based on load capacity (200 tons), reach, mobility, and environmental conditions (marine use).

Structural Analysis: Finite Element Analysis (FEA) ensures the crane can handle dynamic loads, wind, and wave forces.

Hydraulic & Electrical Systems: Design of hydraulic cylinders, winches, and control systems for smooth lifting operations.

Material Selection: High-strength steel (e.g., ASTM A514) for corrosion resistance in marine environments.

Regulatory Compliance: Meets standards like DNV-GL, ABS, or Lloyd's Register for marine cranes.

---

2. Material Procurement

Steel Plates & Beams: Sourced for the boom, chassis, and structural framework.

Hydraulic Components: Pumps, cylinders, hoses, and valves from certified suppliers.

Electrical Systems: Motors, sensors, and control panels (often waterproof for marine use).

Wire Ropes & Sheaves: High-grade steel cables for lifting.

---

3. Fabrication

A. Structural Fabrication

Cutting & Shaping: CNC plasma/laser cutting for precision parts.

Welding: Automated and manual welding (Submerged Arc Welding for thick sections).

Boom Construction: Lattice or telescopic design for strength and mobility.

Chassis & Outriggers: Reinforced for stability during lifts.

B. Hydraulic & Mechanical Assembly

Hydraulic System: Installation of pumps, cylinders, and hoses.

Winches & Drums: Mounted for lifting and lowering operations.

Slewing Mechanism: Allows 360° rotation (if applicable).

C. Electrical & Control Systems

Control Cabin: Waterproof operator station with joysticks/sensors.

Load Monitoring: Load cells and limit switches for safety.

Power Supply: Diesel engine or electric motor (marine-grade).

---

4. Assembly & Integration

Boom Installation: Mounted onto the chassis with pivot points.

Counterweights: Added for balance (if required).

Final Wiring & Plumbing: Connecting hydraulic and electrical systems.

Painting & Coating: Anti-corrosion paint (epoxy or zinc coatings).

---

5. Testing & Quality Control

Load Testing: Lifting 200 tons (+25% overload test, per standards).

Functional Tests: Checking hydraulic movements, rotation, and stability.

Environmental Tests: Salt spray tests for marine durability.

Safety Checks: Emergency stop systems, overload alarms.

---

6. Delivery & Commissioning

Transport: Disassembled for shipping or delivered as a mobile unit.

On-Site Assembly: Reassembled at the dock or shipyard.

Operator Training: Handling and safety protocols.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.