Crane Travelling Mechanisms: Types and Applications

Crane travelling mechanisms represent integral parts of cranes that allow for horizontal movements of the load in an industry. The mechanisms consist of a few key components: a steel structure frame, wheel sets, motors, gearboxes, brakes, and other essential safety devices such as rubber buffers, cross limit switches, rail/storm lockers, and anti-derailment devices. Understanding the various types of crane traveling mechanisms and their applications becomes important to the business, to find appropriate and complying crane suppliers. The variations in the types of crane traveling mechanisms and their use in practice are explored below.

Understanding Crane Traveling Mechanisms

The travelling mechanism of a crane provides the means of travel for a crane along its path, which is sometimes rails or tracks in facilities. The movement is made by motors and gear boxes, with safety features to ensure it moves smoothly and securely. The design and components included in the travelling mechanism should be selected according to special requirements of the intended service, taking into consideration: load capacity, speed of operation, and environmental service conditions.

Types of Crane Travelling Mechanism

1. Hollow Shaft End Carriage (HSE Series)

The HSE series achieves maximum efficiency and smooth, quiet operation. Compact with high transmission efficiency and a low-noise design: the wheels are of forged steel alloy, machined for high wheel loads along with long service life; the open and modular layout in its steel frame allows easy and fast wheel set assembly and dismantling.

Key Features:

Anti-Sway System: This advanced safety feature helps in reducing load swinging, thus offering better control during the movement.

Cross Limit Switches & Photo Sensors: These ensure that the crane does not exceed predefined limits during operation.

Storm Lockers & Rail Deviation Correction Devices: These features ensure stability during operation, even in extreme conditions.

Electromagnetic Brake with Gear Motor: The gear motor integrated with an electromagnetic brake has smooth and reliable operation, together with stepless speed control.

Applications:

Wheel blocks for overhead cranes

Bogies for double girder overhead cranes

End carriages for single girder gantry cranes

Bogies for double girder gantry cranes

2. Open Gear End Carriage (OGE Series)

The OGE series boasts of easy fabrication, competitive pricing, and lubrication-free operation, hence making it an affordable option for companies in search of dependable crane travel mechanisms. It is installed with deep groove ball seal bearings that make lubrication unnecessary, thus minimizing maintenance costs. The wheel groove and gear surfaces are treated with high-frequency heat to a hardness of 45-55 HRC for strength under heavy loads.

Key Features:

Easy Assembly and Disassembly: The open and modular steel frame design allows for quick assembly and maintenance.

Soft-Start Gear Motor: The system includes a soft-start gear motor, providing smooth starting and stopping of the crane.

Inverter Motor Control: An inverter is used for precise speed control, enhancing performance and energy efficiency.

Applications:

Open gear wheels for single girder overhead cranes

Open gear end carriages for single girder gantry cranes

Open gear wheel blocks for double girder overhead cranes

3. Rubber Tyre End Carriage (RTE Series)

The RTE series is designed specifically for rubber tire gantry cranes (RTG), widely used in container handling and many other heavy-duty applications. The wheels of the RTE series can be fitted with solid or pneumatic tires for good mobility on bad ground. Steering systems can be hydraulic or electrical to provide 180-degree or 360-degree rotation as required by the customer.

Key Features:

High-Quality Tires: Solid tires provide excellent traction and stability, making them ideal for demanding environments.

Adjustable Steering Angles: The system can adjust wheel angles remotely, providing flexibility for various operational needs.

Auxiliary Hydraulic System: This system ensures smooth operation of the steering mechanism, with an optional generator for power supply.

Applications:

RTE end carriages for open RTG

RTE end carriages for double girder RTG

RTE end carriages for single girder RTG

4. Underhung End Carriage (SCE Series)

The SCE series is used in underhung overhead cranes, designed in space-restricted or specialized applications environments. This system has fitted bevel wheels for I-beams and flat wheels for H-beams to give high precision and stability. It can be powered either by Nante’s soft-start motor or RF series motor; both give smooth and reliable operation.

Key Features:

Ability to operate lubrication-free: The deep groove ball seal bearings will ensure that the operation of the system is with little or no lubrication.

Heat-Treated Wheel Grooves & Gear Surfaces:Heat treated wheel grooves & gear surfaces to increase hardness thus durability & resistance to load.

Inverter-Controlled Motor: The motor is accurately controlled in its operation of smooth acceleration and deceleration, which further increases the crane’s safety and performance.

Applications:

Underhung overhead cranes

Nante Crane: Your Trustworthy Supplier of Travelling Mechanism

Nante Crane was established for over 30 years and, up to date, is one of the leading Chinese designers and manufacturers specialized in the technologies of lifting and material handling. Committed to research and development, Nante integrates innovative ideas into their designs, products, and services. Their product range encompasses a wide variety of offerings, including industrial cranes, offshore cranes, launching cranes, electric hoists, crane travel units, and mobile power supply systems. The dedication of Nante to quality and innovation has earned it recognition both in the domestic and international customer markets.

Commitment to Innovation

In the era of Industry 4.0 and safety development, Nante Crane is committed to innovation and upgrade in technology, products, solutions, and services. It will build a company powered by people and driven by technological innovation, constantly creating value for customers and contributing to the material handling industry. Nante Crane attaches great importance to adapting to the latest technological development so that its products are competitive and can be ahead of the times.

Reliable Quality Management System

The QMS of Nante Cranes ensures all designed and manufactured lifting machinery has an assurance of being compatible with international standards. In supporting these, there were accreditations: ISO 9001, referring to a quality management system; ISO 18001 – an environmental management system; ISO 45001 or occupational health and safety management; A-level for Crane Manufacturing by the Chinese Government. Nante is fully competent to design and fabricate cranes, having features corresponding to almost every different international standard: EN ISO, FEM, among others.

Conclusion

Crane travelling mechanisms form an integral part of cranes in terms of operation effectiveness and safety in any given industry. Be it overhead travelling, gantry travelling, or rubber tire gantry cranes; each has been intended to meet certain needs both in operation and in terms of the environment within which one is operating. Nante Crane, for more than 30 years as manufacturers of cranes, produces a broad variety of crane travelling mechanisms that are reliable, alongside being innovative. The company has always positioned its products at the very front of the material handling industry with quality, safety, and technological advancement as a promise to help every business enjoy efficiency with lesser downtime.

The right crane traveling mechanism for the operation raises productivity, minimizes operational costs, and guarantees safety in material handling. To this end, a reputed supplier such as Nante Crane with advanced technology, full-service support, and ongoing improvement is relevant.