Customizable Single Girder Overhead Crane for Limited Headroom
Overview
The single girder overhead crane is one of the most cost-effective lifting solutions, especially suitable for capacities up to 20 tons with a span of 18 meters. This type of crane is typically classified into three models: LD type, low headroom type, and LDP type. Thanks to its compact structure and reliable performance, the single girder overhead crane is widely used in workshops, warehouses, material yards, and other industrial facilities where efficient material handling is required.
A key feature of this crane is its lifting mechanism, usually equipped with CD type (single lifting speed) or MD type (double lifting speed) electric hoists. These hoists ensure smooth and precise lifting operations depending on the working environment and customer needs.
The structure of the single girder overhead crane is composed of several essential parts. End trucks are positioned on both sides of the span and contain the wheels that allow the crane to travel along the runway beam, giving full access to the working area. The bridge girder acts as the main horizontal beam, supporting the hoist and trolley. The hoist itself can be either a durable wire rope hoist, offering long-term heavy-duty performance, or a chain hoist, which is more suitable for lighter loads and cost-sensitive applications.
With its versatility, safety, and cost advantages, the single girder overhead crane remains one of the most popular choices for modern material handling operations.
Models
LD Single Girder Overhead Crane
The LD single girder overhead crane is the most widely used model for normal workshops and general material handling. Its main girder adopts a U-type structure that is processed in one step, effectively reducing stress concentration points. The lifting mechanism is equipped with a CD or MD type electric hoist, which travels below the girder to provide stable and efficient lifting. With a reliable structure and affordable cost, the LD type offers excellent value for customers seeking a balance of performance and price.
Low Headroom Type Single Girder Overhead Crane
The low headroom type single girder overhead crane is specially designed for workshops with limited upper space where a higher lifting height is required. This version adopts a box-type main girder, with the hoist traveling below the girder but supported on both sides. It is equipped with a low headroom electric hoist, which has a different structure compared to standard CD/MD hoists, offering greater lifting height within the same space. Its compact design makes it both practical and visually refined.
LDP Single Girder Overhead Crane
The LDP type single girder overhead crane is suitable for workshops where the total building height is restricted, but the available upper space allows the crane to reach maximum lifting height. The main girder is box-type, with the hoist traveling on the girder but positioned on one side. This design maximizes lifting capacity within limited dimensions, making the LDP type an efficient solution for demanding lifting requirements.
FAQ
Q1: How does temperature affect the performance of a single girder overhead crane?
When the working temperature is below -20℃, the crane structure needs to use low-alloy steel such as Q345 to maintain strength and toughness. If the temperature is extremely high, the crane will be equipped with an H-grade motor, improved cable insulation, and enhanced ventilation systems to ensure reliable operation in harsh environments.
Q2: What if the workshop space is limited in height?
If the distance from the runway beam surface to the lowest point of the workshop is too small, SEVENCRANE can provide special low headroom designs. By adjusting the connection of the main beam and end beam or redesigning the overall crane structure, the self-height of the single girder overhead crane can be minimized, allowing it to operate smoothly in restricted spaces.
Q3: Can you provide spare parts?
Yes. As a professional crane manufacturer, we supply all related spare parts, including motors, hoists, drums, wheels, hooks, grabs, rails, travel beams, and enclosed bus bars. Customers can easily obtain replacement parts to maintain long-term crane performance.
Q4: What are the operation methods available?
Our single girder overhead cranes can be operated by pendant control, wireless remote control, or cabin operation, depending on the working environment and customer preference.
Q5: Do you offer customized designs?
Absolutely. SEVENCRANE provides tailored crane solutions for special conditions such as explosion-proof requirements, high-temperature workshops, and cleanroom facilities.
