1t Single Girder Gantry Crane Double Cantilever, 6m Lift, 13.5m Span for Brazil

Single-girder gantry cranes feature simple structures, flexible operation, and cost-effective pricing. They are primarily used for material loading, unloading, handling, and short-distance transportation in various settings, including indoor workshops, open-air warehouses, storage yards, and port terminals.

Purchase Recommendations:

• Select According to Requirements: Decide load capacity, span, and height by goods weight and space. Pick higher-duty cranes for frequent use.

• Balance Cost-Effectiveness: Weigh quality, performance, and price for the best value.

• Prioritize Quality Assurance: Choose reputable, qualified manufacturers, such as Shanghai Hexin, which has a full range of credentials.

• Emphasize After-Sales Service: Ensure installation, training, maintenance, and spare parts support.

Note: Specific model parameters can be customized according to actual load, span and functional requirements. For details, please contact the sales team to obtain technical solutions.

(1)Technical Parameters

 The structure of a single girder gantry crane is a strong and efficient system designed for lighter to medium-duty lifting tasks. Understanding its key components, such as the main girder, legs, hoist, and end trucks, helps operators maximize the crane's performance, ensure smooth operation, and extend its service life. A clear grasp of the crane's structure enables users to operate with confidence, minimize maintenance needs, and enhance overall safety and productivity.

Gantry Structure

1. Composition

• Main beam: Constructed from Box Beam or I-Beam.

• Legs: L-Shape, Welded from Q235B or Q355B steel.

• End beam: Welded from Q235B or Q355B steel.

2. Functions

• Supports the entire crane structure.

• Transmits loads during operation.

• Connects to the rails for stable movement.

3. Structural Feature

• Asymmetric structure, lightweight design, strong scenario-specific applicability.

Lifting Mechanism

1. Composition

• Primarily includes an electric hoist, which contains a motor, reducer, and steel wire rope/chain.

2. Function

• Drives the vertical lifting and lowering of materials via the motor.

• Serves as the core execution component for completing handling operations.

Electrical System

1. Composition

• Includes motors, reducers, brakes, and control boxes.

2. Function

• Precisely controls lifting and moving actions to ensure operational safety.

3. Advantages

• High intelligence level for automated operation.

• Strong protection performance against electrical faults and environmental factors.

• Convenient maintenance for reduced downtime and cost.

Cabin(Optional)

1. Location

• Typically positioned on top of the main beam or legs for optimal visibility.

2. Function

• Controls crane operations, monitors parameters, ensures operator safety and comfort.

3. Configurations

• Equipped with control handles, buttons, displays, air conditioning, etc. Some models support intelligent monitoring or explosion-proof designs.

Operating Mechanism

1. Wheels:

• Directly contact the rails or ground to support the weight of the gantry crane and drive the equipment to move.

2. End Beams:

• Connect the bottoms of the two side legs, distributing the weight of the legs and main beam (including cargo loads) to the wheels and rails through the end beams.

3. Rails (or Ground Foundation):

• Provide a running path for the wheels and bear the weight of the gantry crane and cargo loads.

Safety Devices

1. Rubber buffer: Absorbs impact energy to avoid rigid collisions with surrounding objects or personnel.

2. Audio-visual alarm: Emits light and sound warnings during startup or abnormal conditions to alert nearby personnel.

3. Overload protector: Monitors lifting weight and cuts off power when overloaded to prevent structural damage or overturning.

4. Contactor: Controls circuit on/off for crane operation and provides under-voltage/voltage-loss protection.

5. Circuit breaker: Automatically trips to cut off power during overload, short-circuit, or under-voltage faults to prevent electrical accidents.

6. Seamless slide wire: Ensures stable power supply with enclosed design to prevent electric shock and foreign matter interference.

7. Cross limit switch: Restricts lifting height and travel range to prevent overhoisting and derailment.

8. Emergency stop button: Instantly cuts off all power in emergencies to halt operation and minimize risks.