Crane With Clamshell Bucket

 

The Crane with Clamshell Bucket is a highly efficient lifting and material-handling solution designed for bulk material loading and unloading. It is widely used in ports, shipyards, construction sites, mining operations, and industrial facilities to handle materials such as sand, gravel, coal, grain, scrap metal, and other bulk commodities.

Equipped with a durable and high-performance clamshell bucket, this crane ensures fast, precise, and reliable material handling, improving operational efficiency and productivity.

It is widely used in ports, shipyards, construction sites, mining industries, and power plants to handle materials such as sand, gravel, coal, grain, and scrap metal. Equipped with a durable and high-performance clamshell bucket, this crane ensures efficient and precise loading, unloading, and stacking of bulk materials.

Core Component:Engine, motor, Gear
Place of Origin:Henan, China
Warranty:1year
Weight (KG):2200 kg
Video outgoing-inspection:Provided
Machinery Test Report:Provided
Product Name:Bucket Overhead Crane
Features:Widely application in various places
Power:380V 50Hz 3P or as per your request
Standard:Chinese standard
Working duty :A6~A8
Safety devices:Overload limit, Limit switch,etc

1.Main beam

1)High-Strength Steel Construction: Made from Q345B, Q355B, or equivalent high-tensile steel for durability and load-bearing capacity.
2)Optimized Structural Design: Designed using finite element analysis (FEA) to ensure high strength with reduced weight.
3)Customizable Length & Capacity: Available in different lengths and load capacities to meet various operational needs.
4)Corrosion-Resistant Coating: Special coatings and treatments protect against harsh environmental conditions, including marine and industrial environments.
5)Seamless Integration: Designed to accommodate hydraulic, electric, and mechanical systems, ensuring smooth operation of the clamshell bucket.

 

 

2.Lifting System

1)Hoisting Mechanism
Winch System:Powered by electric or hydraulic motors.Provides high lifting speed and strong pulling force for heavy loads.
Wire Rope & Drum:Made of high-strength steel cables for durability.Wrapped around a grooved drum to prevent rope slipping and wear.
2)Clamshell Bucket Lifting & Control
Dual-Rope or Single-Rope System:Dual-rope system: Provides better stability and control, commonly used in ship unloaders and port cranes.
Single-rope system: Simpler and used in smaller capacity cranes.
Opening & Closing Mechanism:Hydraulic cylinders or electric actuators enable precise control over bucket movement.Ensures smooth material grabbing and dumping.

 

3.End carriage

1)High-Strength Construction – Made from welded steel plates or box-type structures for durability and load-bearing capacity.
2)Precision Machining – Ensures accurate alignment of wheels and drive units for smooth motion.
3)Integrated Drive System – Equipped with motors, gearboxes, and wheels to provide controlled movement.
4)Anti-Wear & Corrosion Resistance – Treated with anti-rust coatings for extended lifespan, especially in harsh environments like ports and mining sites.
5)Safety Mechanisms – Features buffer systems, limit switches, and anti-collision sensors to prevent accidents.

4.Crane travelling mechanism

1)Wheel System
Forged Steel Wheels: High-strength material for durability and heavy loads.
Single-Flanged or Double-Flanged Wheels: Ensures smooth movement along the rail.
Precision Bearings: Reduces friction and enhances operational lifespan.
2)Drive System
Electric or Hydraulic Motors: Provides controlled movement and torque.
Gearbox & Transmission: Converts motor power for optimized speed and torque.
Variable Frequency Drive (VFD): Enables smooth acceleration, deceleration, and speed control.
3)Rail & Track System
Fixed or Mobile Tracks: Designed based on crane type and operational needs.
Rail Alignment System: Ensures precise movement and prevents derailment.
Wear-Resistant Materials: Increases longevity in heavy-duty applications.
4)Braking & Safety System
Electromagnetic or Hydraulic Brakes: Ensures safe stopping and positioning.
Anti-Collision Sensors: Prevents accidents in multi-crane environments.
Limit Switches: Stops the crane at designated endpoints automatically.
Shock Absorbers & Buffers: Reduces impact forces when reaching travel limits.

5.Trolley travelling mechanism

1)Trolley Frame:High-strength steel structure designed to withstand dynamic loads.Houses the hoisting system, motor, and clamshell bucket controls.
2)Wheel System:Forged steel wheels for high load capacity and long service life.Double-flanged wheels for rail-mounted trolleys to ensure proper alignment.Self-lubricating bearings to minimize friction and wear.
3)Drive System
Electric Motor Drive: Provides power for trolley movement.
Gearbox & Transmission System: Converts motor power to controlled motion.
Variable Frequency Drive (VFD): Allows smooth acceleration, deceleration, and speed adjustment.

6.Crane wheel

1)Single-Flanged Wheel:Used for guided rail systems in gantry and bridge cranes.Provides high stability while allowing controlled lateral movement.
2)Double-Flanged Wheels:Common in overhead and gantry cranes to prevent derailment.Ideal for applications requiring strict rail alignment.
3)Flat Tread Wheels (No Flange):Typically used in rubber-tired or crawler-type cranes.Works with independent guiding systems for flexible movement.
4)Customized & Special Wheels:Tapered or curved designs for specialized applications.Hardened & grooved wheels for extreme environments.

7.Crane grab

1)Hydraulic Clamshell Grab:Operated by hydraulic cylinders for precise control.Requires hydraulic power supply from the crane or an external source.Best for sticky, wet, or fine materials like mud, sand, and small aggregates.
2)Mechanical Clamshell Grab:Works with a two-rope or four-rope system using the crane's hoisting mechanism.Ideal for high-capacity material handling in ports and bulk storage areas.Used for grains, coal, minerals, and scrap metal.
3)Electro-Hydraulic Clamshell Grab:Combines hydraulic control with electric power for smooth and efficient operation.Often used in ship unloaders, grab cranes, and material handling facilities.
4)Orange Peel Grab (for Irregular Materials):Designed for scrap metal, waste, and irregular bulk materials.Features multiple tines instead of smooth bucket shells.

8.Motor

1)Hoisting Motor (For Lifting & Lowering):High-power electric motor with braking system for lifting heavy loads.Works with hydraulic or mechanical clamshell bucket systems.Controlled via Variable Frequency Drive (VFD) for smooth operation.
Common types: Asynchronous squirrel-cage motor, Wound-rotor motor.
2)Trolley Travelling Motor (For Horizontal Movement):Moves the trolley and clamshell bucket along the main girder.High-speed response with smooth acceleration and deceleration.Works with gearboxes and drive wheels for precise control.
Common types: Three-phase induction motor, Servo motor.
3)Crane Travelling Motor (For Longitudinal Motion):Powers the end carriages and rail-mounted wheels for crane movement.Equipped with brakes, limit switches, and overload protection.Used in gantry cranes, overhead cranes, and ship unloaders.
4)Hydraulic Motor (For Hydraulic Clamshell Grabs):Used in electro-hydraulic clamshell buckets for better grip control.Provides power to hydraulic cylinders for opening and closing.Works in harsh environments with high-pressure oil systems.

9.Sound and light alarm system & limit switch

1)Sound and Light Alarm System
The sound and light alarm system is designed to alert personnel in the crane's working area about potential hazards, movements, or emergency situations.
2)Limit Switches of a Crane with Clamshell Bucket
Limit switches are electromechanical devices that control and restrict crane movements to prevent over-travel, collisions, and unsafe operations.

10.Safety Devices

1)Overload Protection System: Prevents the crane from lifting loads beyond its safe working load (SWL).
2)Limit Switches: Prevents over-travel, collisions, and unsafe movements.
3)Anti-Collision System: Prevents collisions between cranes or structures in shared workspaces.
4)Emergency Stop System: Allows the operator to immediately stop the crane in case of an emergency.
5)Wind Speed Alarm (for Outdoor Cranes): Protects the crane from operating in strong winds that could cause instability.

11.Control Mode

1)Pendant Control (Wired Control):The operator controls the crane using a wired pendant controller connected to the crane.Typically used for small to medium-sized cranes where the operator needs to walk alongside the crane.
2)Wireless Remote Control:The operator uses a radio frequency (RF) or Bluetooth remote control to control the crane from a distance.Ideal for large-scale operations, ports, and construction sites where mobility is crucial.
3)Cabin Control (Operator Cabin):The operator sits inside an elevated control cabin attached to the crane.Common in ship unloaders, gantry cranes, and high-capacity industrial cranes.
4)Automatic & Semi-Automatic Control:The crane operates using pre-programmed movements and automation systems.Used in high-efficiency bulk handling, automated warehouses, and smart port terminals.

12.Sketch

1)High Efficiency in Bulk Material Handling
Quick Loading & Unloading – The clamshell bucket can grab large volumes of material in a single cycle, reducing handling time.
2)Versatile Material Handling
Handles Various Materials – Ideal for sand, gravel, coal, minerals, fertilizers, grain, scrap metal, and more.
3)Increased Safety & Reduced Material Waste
Minimizes Material Spillage – The enclosed design of the clamshell bucket prevents material loss during lifting and transport.
4)Strong and Durable Design
Heavy-Duty Construction – Built with high-strength steel to withstand rough and abrasive materials.
5)Cost-Effective & Low Maintenance
Reduced Operational Costs – Less labor required, and efficient material handling means lower costs per ton.
6)Multiple Operation Modes
Manual, Semi-Automatic, & Fully Automatic – Can be operated manually, remotely, or integrated into an automated system.

1. Port & Marine Industry
Loading & Unloading Ships – Efficiently handles coal, iron ore, fertilizers, grains, and construction materials from cargo ships.
2. Mining & Quarrying
Handling Raw Materials – Moves crushed stone, sand, gravel, and ores in mining sites.
3. Construction Industry
Excavation & Earthmoving – Used for digging and lifting soil, sand, and gravel at construction sites.
4. Steel Mills & Metal Industry
Handling Scrap Metal – Moves scrap iron, steel, and aluminum to melting furnaces.
5. Waste Management & Recycling
Handling Solid Waste – Lifts and moves industrial and municipal waste at disposal sites.
6. Power Plants & Biomass Industry
Coal Handling in Thermal Power Plants – Feeds coal from stockpiles to conveyor belts for energy production.

1. Design & Engineering
Requirement Analysis – Determine crane capacity, lifting height, span, duty cycle, and environmental conditions.
Structural Design – Engineers create 3D models and technical drawings using CAD software.
Load & Stress Calculations – Finite Element Analysis (FEA) ensures structural integrity and safety.
Electrical & Control System Design – Plan the motor, wiring, PLC, remote control, and automation features.
2. Material Preparation & Cutting
Steel Selection – High-quality Q235, Q345, or alloy steel is selected for the crane structure.
Cutting & Shaping – CNC plasma cutting, laser cutting, or flame cutting is used to shape steel plates.
Edge Processing – Beveling & grinding prepare the steel parts for welding.
3. Welding & Fabrication
Main Structure Welding – Welders assemble the main beam, end carriages, trolley frame, and grab bucket.
Non-Destructive Testing (NDT) – Ultrasonic & X-ray tests check for welding defects.
Stress-Relief Treatment – The structure is heat-treated to remove internal stresses.
4. Machining & Surface Treatment
Precision Machining – CNC machines process gearboxes, wheels, shafts, and motor housings.
Sandblasting – Removes rust and impurities from steel surfaces.
Anti-Corrosion Coating – Primer and polyurethane paint are applied for weather resistance.
5. Electrical System Assembly
Motor & Gearbox Installation – Hoisting motors, travel motors, and reducers are mounted.
Wiring & Control Panel Setup – Electrical components like contactors, inverters, PLCs, and limit switches are installed.
Safety Devices – Overload limiters, emergency stop systems, and alarms are connected.
6. Final Assembly & Quality Inspection
Crane Structure Assembly – The main beam, end carriages, trolley, and grab bucket are assembled.
Alignment & Calibration – The crane is tested for smooth movement and load balance.
Load Testing – Static & dynamic load tests verify lifting capacity and performance.
Final Inspection – Engineers conduct functionality, safety, and durability checks.
7. Packaging & Delivery
Disassembly for Transport – Large components are separated for easy shipping.
Rust Prevention Measures – Parts are coated with protective oil to prevent rust.
Secure Packaging – Heavy components are packed in steel frames or wooden cases.
Shipping Logistics – Cranes are transported via trucks, containers, or breakbulk carriers.
8. Installation & Commissioning
On-Site Assembly – The crane is installed at the customer's facility or port terminal.
Testing & Adjustments – Final adjustments to motors, control systems, and safety devices.
Operator Training – Customers receive training on safe operation and maintenance.
After-Sales Support – Ongoing technical support, spare parts supply, and maintenance services.

 

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%.

 

 

 

Hot Tags: crane with clamshell bucket, China crane with clamshell bucket manufacturers, suppliers, factory, Grab Bucket Overhead Crane, Grab Overhead Crane