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3 Tons Single Girder Overhead Crane

Rated Lifting Capacity: 3 Tons

Span (S): 7.5m - 31.5m (Customizable)

Lifting Height (H): 6m - 30m (Customizable)

Lifting Speed: 8m/min (Single speed) or 0.8-8m/min (Dual speed)

TAG: Single Girder Overhead Crane

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Email:weihua@craneweihua.com
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Description

Product Overview

The 3 Tons Single Girder Overhead Crane is a high-performance material handling equipment designed for efficient and safe lifting operations in various industrial settings. With a rated lifting capacity of 3 tons, it is widely recognized for its compact structure, reliable performance, and cost-effectiveness. This crane is engineered to meet the diverse lifting needs of workshops, warehouses, assembly lines, and other workplaces where medium-weight material transportation is required. It combines advanced technology and robust construction to ensure smooth operation, long service life, and excellent adaptability to different working environments.

Structural Features

1. Main Girder: The main girder is made of high-quality Q235B or Q355B steel plate, welded with advanced submerged arc welding technology. This ensures high strength, good rigidity, and strong load-bearing capacity. The girder adopts an optimized design with a box-type structure, which effectively reduces self-weight while enhancing stability during lifting operations.
2. End Carriages: The end carriages are fabricated with high-strength steel, featuring a compact and lightweight design. They are equipped with high-precision running wheels and bearings, which reduce friction and ensure smooth movement along the crane rails. The connection between the end carriages and the main girder is firm and reliable, ensuring the overall stability of the crane.
3. Lifting Mechanism: The lifting mechanism consists of a high-quality hoist, motor, reducer, and brake. The hoist is of a compact design, with a high lifting speed and precise positioning. The motor adopts a high-efficiency squirrel-cage asynchronous motor, which has the advantages of low noise, high efficiency, and long service life. The reducer is a hard-tooth surface reducer, featuring large transmission torque, low energy consumption, and stable operation. The brake is an electromagnetic brake, which provides reliable braking performance and ensures safe stopping of the lifted load.
4. Running Mechanism: The running mechanism includes the crane traveling mechanism and the trolley traveling mechanism. Both mechanisms are driven by frequency conversion motors, which allow for stepless speed regulation, ensuring smooth starting, stopping, and position adjustment. The traveling wheels are made of high-quality alloy steel, heat-treated to improve wear resistance, and matched with heavy-duty bearings for long-term reliable operation.

Application Scenarios

3 Tons Single Girder Overhead Crane

The 3 Tons Single Girder Overhead Crane is widely used in various industries due to its versatile performance. Typical application scenarios include:

1. Manufacturing Workshops: Used for lifting and transporting raw materials, semi-finished products, and finished products during the production process, such as in machinery manufacturing, auto parts production, and electronic equipment assembly workshops.
2. Warehouses and Logistics Centers: Facilitates the loading, unloading, and stacking of goods, improving the efficiency of warehouse management and logistics operations.
3. Assembly Lines: Assists in the assembly of large equipment and components, enabling precise positioning and installation of parts.
4. Metallurgical and Mining Industries: Used for lifting and moving small batches of metal materials, ores, and other materials in smelting plants and mining processing sites.
5. Construction Sites: Suitable for indoor construction projects, such as the installation of building materials and equipment in workshops and factories under construction.

Safety Performance

Safety is the top priority of our 3 Tons Single Girder Overhead Crane. The crane is equipped with multiple safety protection devices to ensure the safety of operators and equipment.

1. Overload Protection Device: Automatically cuts off the power supply when the lifted load exceeds the rated capacity, preventing overloading and potential accidents.
2. Limit Switch: Includes lifting height limit switch and trolley/crane traveling limit switch, which restrict the movement range of the hoist, trolley, and crane to avoid collision and overtravel.
3. Emergency Stop Button: Installed on the pendant control and wireless remote control, allowing the operator to stop the crane immediately in case of emergency.
4. Voltage Protection Device: Monitors the power supply voltage. When the voltage is too high or too low, it automatically stops the crane to protect the electrical components.
Rainproof and Dustproof Design: The electrical control box and key components are designed with rainproof and dustproof functions, suitable for use in harsh working environments.

Product Advantages

Cost-Effective: Compared with double girder overhead cranes, the single girder overhead crane structure has a lower manufacturing cost and simpler installation, which can effectively reduce the initial investment of users.
Space-Saving: The compact structure occupies less space, making it suitable for workshops with limited height and span. It can maximize the use of workshop space.
Easy Operation and Maintenance: The crane adopts a simple and intuitive control system, which is easy for operators to master. The maintenance workload is small, and the replacement of wearing parts is convenient, reducing the maintenance cost and downtime.
High Efficiency: With stable lifting and traveling performance, the crane can complete lifting operations quickly and accurately, improving the overall production efficiency of the workplace.
Customizable: We can provide customized solutions according to the user's specific requirements, such as span, lifting height, control mode, and working environment, to meet the unique needs of different users.

Conclusion

The 3 Tons Single Girder Overhead Crane is an ideal material handling solution for medium-weight lifting needs. It integrates reliability, safety, efficiency, and cost-effectiveness, making it a valuable asset in various industrial fields. With strict quality control and professional after-sales service, we are committed to providing customers with high-quality products and comprehensive support. If you have any inquiries or need further information, please feel free to contact us.

TAG: Single Girder Overhead Crane

Specification

Parameter Item	Specification
Rated Lifting Capacity	3 Tons
Span (S)	7.5m - 31.5m (Customizable)
Lifting Height (H)	6m - 30m (Customizable)
Lifting Speed	8m/min (Single speed) or 0.8-8m/min (Dual speed)
Trolley Traveling Speed	20m/min (Single speed) or 2-20m/min (Dual speed)
Crane Traveling Speed	40m/min (Single speed) or 4-40m/min (Dual speed)
Working Class	A3 - A5
Power Supply	3-phase, 380V/50Hz (Customizable according to user's local standard)
Control Mode	Pendant control or wireless remote control