Ldp Type Overhead Crane

Core Components: Gearbox, Motor, Gear

Place of Origin: Henan, China

Warranty: 1 Year

Weight (KG): 10000 kg

Video outgoing-inspection: Provided

Machinery Test Report: Provided

Selling Units: Single item

Single package size: 600X300X300 cm

Single gross weight: 200.000 kg

An LDP-type overhead crane is designed for smooth, precise, and controlled material handling in light-duty applications. Below is a detailed breakdown of its key components:

1. Bridge Girder (Main Load-Bearing Structure)

Type: Usually single girder (box-type or I-beam) for lightweight precision.

Material: High-quality S235JR/S355JR steel (balanced strength & weight).

Deflection Limit: Typically L/800 to L/1000 (stiffer than standard cranes for better precision).

2. Hoist Unit (Lifting Mechanism)

Electric Chain Hoist (common for LDP cranes):

Capacity: 0.25T – 10T (light-duty).

Precision Control: Variable speed for delicate positioning.

Wire Rope Hoist (for slightly heavier loads):

Capacity: Up to 20T.

Smooth Lifting: Equipped with VFD for jerk-free operation.

Safety Features:

Overload protection.

Upper/lower limit switches.

3. Trolley (Horizontal Movement Along Girder)

Manual Trolley: Hand-pushed for light loads (common in workshops).

Motorized Trolley:

Geared motor (0.2kW – 1.5kW) for smooth travel.

VFD-controlled for precise positioning.

4. End Carriages (Support & Movement Along Runway)

Wheel Configuration:

4 wheels (2 driven, 2 idle) for stability.

Polyurethane or steel wheels (low noise & wear-resistant).

Buffers: Rubber or hydraulic bumpers for shock absorption.

5. Runway System (Supporting Track Structure)

Runway Beam: Light-duty I-beam or enclosed track.

Rail Type:

A45/A55 (DIN 536 standard) for smooth rolling.

Precision-aligned to minimize vibration.

6. Drive Mechanism (Crane Travel Motion)

Bridge Travel Motor:

0.4kW – 2.2kW (depending on span & load).

VFD-controlled for smooth acceleration/deceleration.

Braking System:

Electromagnetic or disc brakes for precise stopping.

.

7. Electrical & Control System

Control Panel:

VFDs for hoist & travel motors (ensures smooth operation).

Thermal overload protection.

Operator Controls:

Pendant Control (IP54 rated) – Standard.

Radio Remote Control (Optional) – For flexible operation.

Safety Devices:

Emergency stop button.

Undervoltage protection.

Anti-collision sensors (optional).

8. Optional Precision Enhancements

Anti-Sway System (for vibration-free lifting).

Encoder Feedback (for exact positioning).

Cleanroom Design (stainless steel, low particulate).

Sketch

Main technical

Superior Precision Handling

Equipped with variable frequency drives (VFDs) for smooth acceleration/deceleration.

Optional anti-sway systems and micro-speed control for millimeter-accurate positioning.

Ideal for delicate operations in electronics, labs, and assembly lines.

Lightweight & Compact Design

Single-girder construction reduces dead weight and saves headroom.

Perfect for facilities with low ceiling heights or limited space.

Quiet & Low-Vibration Operation

Polyurethane wheels and precision-aligned runways minimize noise.

Suitable for noise-sensitive environments (e.g., laboratories, cleanrooms).

Energy Efficiency

VFD-controlled motors optimize power usage and reduce energy costs.

Regenerative braking systems recover energy during deceleration (optional).

Low Maintenance & Durability

Sealed bearings and corrosion-resistant coatings extend service life.

Fewer mechanical wear parts compared to standard cranes.

Safety & Compliance

Meets FEM 1Am-2m or ISO M1-M4 standards for light/medium duty.

Includes overload protection, limit switches, and emergency stop.

Electronics Manufacturing

Handling PCBs, semiconductor wafers, and display panels with precision.

Cleanroom-compatible models available (stainless steel construction).

Automotive & Aerospace Assembly

Positioning small engine components, sensors, or fragile parts.

Used in battery production lines for EVs.

Pharmaceuticals & Laboratories

Transporting sensitive lab equipment, glassware, or sterile materials.

Vibration-free operation protects delicate instruments.

General Light Industrial Workshops

Machining shops, tool rooms, and maintenance facilities.

Lifting molds, jigs, or small machinery parts (typically 0.5T–10T).

Food Processing & Packaging

Hygienic designs with stainless steel hoists and washdown protection.

Handling ingredient bins, packaging lines, or conveyor systems.

Healthcare & Medical Device Manufacturing

Moving MRI components, surgical devices, or precision optics.

Non-magnetic options available for sensitive environments.

1. Design and Engineering
Initial Consultation: The process begins with discussions between the manufacturer and the customer to understand the crane's operational requirements, such as load capacity, span, lifting height, and environment (e.g., indoor or outdoor use, temperature conditions, etc.).

Engineering & Customization: The design team customizes the crane, including the structure, lifting system, and radio remote control features. Detailed engineering drawings and specifications are prepared, ensuring the crane meets all required standards and safety codes.

Control System Design: The radio remote control system is integrated into the design, with attention to ease of use, range, safety features (emergency stop, overload protection), and compatibility with the crane's other systems.

2. Material Selection and Procurement
Structural Materials: High-quality materials like steel are sourced for the crane's main beam, girder, end carriages, and other structural components. These materials are selected for their strength, durability, and ability to withstand heavy loads.

Mechanical Components: The components for the hoisting system, trolley, crane wheel, motors, gearboxes, and radio remote control system are procured from reliable suppliers.

Electrical Components: Wiring, electrical panels, switches, safety devices, and other electrical components for the crane's control system are also sourced.

3. Fabrication and Manufacturing
Main Beam Construction: The steel is cut, welded, and assembled to form the main girder (single beam) of the crane. This process often involves precision cutting, bending, and welding to meet specific design tolerances.

End Carriage Fabrication: The end carriages, which support the crane's travel mechanism, are fabricated and assembled. These components are designed for stability and strength, ensuring smooth crane movement along the tracks.

Assembly of Lifting Mechanism: The hoist, hook, and lifting mechanism are assembled, with motors, gears, and pulleys integrated into the system. The lifting system is tested for load-bearing capacity and smooth operation.

Trolley and Crane Traveling Mechanisms: The trolley and crane traveling mechanisms are built and assembled. This includes the wheels, motor, and rail system, ensuring smooth movement of the crane along the rails.

Radio Remote Control Installation: The radio remote control system is installed. This includes fitting the necessary receivers, antennas, and integrating the control system with the crane's electrical and mechanical systems.

4. Electrical and Control System Integration
Wiring and Electrical Systems: The electrical wiring is installed, connecting the hoisting system, control panel, motors, and radio remote control system. The wiring is tested for safety and compliance with electrical codes.

Control Panel Assembly: The crane's control panel is assembled and integrated with the radio remote control system. It is tested for responsiveness and safety features, including emergency stop and overload protection.

Safety Features: Safety devices such as limit switches, overload sensors, and sound and light alarms are installed and integrated into the control system. These systems ensure safe crane operation and prevent damage.

5. Testing and Quality Control
Load Testing: The crane is subjected to a load test to ensure it can handle the specified weight capacity. The test is done using calibrated weights to verify the crane's performance under operational conditions.

Operational Testing: The crane undergoes a full operational test, where it is run through its motions (lifting, lowering, traveling, etc.) using the radio remote control. The crane's response to commands, including emergency stop and safety alarms, is closely monitored.

Electrical & Mechanical Testing: All electrical systems, including the radio remote control, are tested for functionality and safety. The motors, brakes, and electrical wiring are inspected for proper operation.

Inspection for Compliance: The crane is inspected for compliance with local and international standards (such as ISO, CE, or OSHA) to ensure it meets safety regulations. The structure, load-bearing components, and safety systems are thoroughly checked.

6. Final Assembly
Final Assembly and Inspection: After testing, the crane is fully assembled, with all components securely attached and double-checked for accuracy. The radio remote control is configured, and the system is tested one last time to ensure seamless integration.

Painting & Finishing: The crane is painted with protective coatings to prevent corrosion and improve its appearance. The final finishing touches are added to the structure, including any labeling or safety markings.

Documentation: All necessary documentation, including manuals, certificates of compliance, test reports, and warranty information, are prepared for the customer.
 

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%.