A semi-gantry crane is a type of overhead crane. It features a unique structure where one side of its legs is mounted on wheels or rails, allowing it to move freely, while the other side rides on a runway system connected to the building columns or the side wall of the building structure.
This design offers significant advantages in space utilization, effectively saving valuable floor space and workspace, making it especially suitable for locations with limited space, such as indoor workshops. It can be used in a variety of operating scenarios, commonly seen in heavy fabrication applications, outdoor yards (like rail yards, shipping and container yards, steel yards, scrap yards).
Its design permits forklifts and other motorized vehicles to work and pass underneath freely.
Features
Is the Semi-Gantry Crane the right choice for you?
| |
Advantages |
| Structure |
utilize an exsiting building structure as one side of support, hereby saving floorspace and cost |
| Application |
work in both indoor and outdoor settings, versatile to cope with various environment |
| Flexibility |
bigger floorspace for forklifts, trucks, or other machinerys to move around the site |
| Cost |
lower materials and shipping cost comparing to a full gantry crane |
| Maintenance |
easy to maintain |
Prior to making a purchase decision, it is essential to have a clear understanding of your workloads, lift height, and other specific work requirements.
Leveraging years of professional expertise, Shanghai Hexin is equipped with a team of specialists who are dedicated to assisting you in choosing the most suitable lifting solution that precisely aligns with your objectives. Selecting the appropriate girder form, lifting mechanisms, and components is of utmost importance. This not only ensures optimal operational efficiency but also enables you to manage costs effectively, keeping them well within your budgetary constraints.
This single girder semi-gantry crane is optimally suited for light to medium-duty applications. It presents a cost-effective solution, with reduced expenditures in terms of materials and shipping costs.
Nevertheless, it does possess certain limitations. In terms of workload capacity, span, and hook height, there are defined boundaries. Additionally, integrating special features such as walkways and cabins poses challenges. However, for operations where these limitations are not prohibitive and cost-efficiency is a priority, this crane offers a practical and reliable option.
Which lifting mechanism should you choose? A hoist or a winch?
| |
Hoist |
Winch |
| Load Capacity |
best for light to medium loads |
wide range, suitable for extremely heavy loads, maybe overkill for light loads |
| Lifting Speed |
usually slower than a winch |
upper limit is high, challenging to be very slow and precise |
| Duty Cycle |
suitable for light to medium work duty;
heavy work duty may reduce lifespan |
perfect for continuous high work duty job; overqualified for slow and light duty job |
| Precision & Control |
preferred for high precision, better load positioning |
harder to achieve fine precision; possible with customizable at extra cost |
| Space & Installation |
compact in design, simple installation |
larger in size; has a complex setup; but allows more room for customization |
| Cost |
lower initial and maintenance cost, may increase with customization |
higher cost in general |
Shanghai Hexin is a leading heavy machinery company that combines industry and trade expertise. With years of hands-on experience in the field, we focus intently on overhead cranes and gantry cranes, offering a premium and extensive product range. Our commitment extends from in-depth R&D and precise production to reliable after-sales support. We strive to equip global clients with superior lifting solutions they can trust.
If you're considering to invest in a new semi-gantry crane system and need a detailed quote, or if you're seeking professional advice on an optimal lifting solution for your specific operations, don't hesitate to reach out to us. Our dedicated team is always on standby, ready to understand your requirements and provide tailored services that meet your need.
Technical Parameters
| Main Parameters List |
| Crane Traveling Mechanism |
Traveling Speed(m/min) |
20 |
30 |
45 |
60 |
| Ratio |
58.95 |
39.42 |
26.51 |
19.44 |
| Motor |
Type |
Cone Squirrel-cage |
Cone Squirrel-cage |
| Power(kw) |
0.8*2, 1.5*2, 2.2*2 |
1.5*2, 2.1*2 |
| Rotary Speed(r/min) |
1380 |
1350 |
| Hoist Lifting Mechanism and Traveling Mechanism |
Trolly |
|
|
| Lifting Speed(m/min) |
8/0.8, 7/0.7, 3.5/0.35 |
8, 7, 3.5 |
| Span(m) |
7.5-28.5 or assigned |
| Lifting Capacity(t) |
1-32 |
| Lifting Height(m) |
6, 9, 12, 18, 24, 30 |
| Traveling Speed(m/min) |
20, 30 |
| Motor |
Cone Squirrel-cage |
| Work Duty |
Intermediate Jc=25% |
| Power Supply |
380V 50HZ 3P |
| Wheel Diameter |
Φ270, Φ400 |
| Trail Width |
37-70 |
Safety Devices:
To ensure the seamless operation of the crane and preclude any potential personal injuries and mechanical failures, the safety apparatus we offer extends far beyond mere electric protective devices or alarm bells. It encompasses a comprehensive array of other essential equipment, which are detailed as follows:
1. Overload Limit Switch
2. Rubber Buffers
3. Electric Protective Devices
4. Emergency Stop System
5. Voltage Lower Protection Function
6. Current Overload Protection System
7. Rail Anchoring
8. Lifting Height Limit Device
FAQ
Q1. Are you a manufacturer or a trading company?
We are an integrated industry and trade enterprise, possessing our own independent R&D team, manufacturing facility, and professional marketing department. This integrated structure allows us to provide comprehensive solutions and maintain a competitive edge in the market.
Q2. Are customizations available?
Certainly. Recognizing that each customer's operational circumstances are unique, all our products are amenable to customization based on specific requirements. We kindly request that you provide us with as detailed and clear information as possible. This will enable our team to formulate the most optimal design, precisely tailored to meet your individual demands and ensure the highest level of satisfaction.
Q3. How long is your warranty coverage? and what is the process for claiming warranty in case my crane encounters any issues?
The warranty period we offer is 24 months. In the event that your crane experiences any problems, our dedicated after-sales team and professional engineers will assist you in resolving the issue. This support will be provided via email or video conference, allowing for efficient troubleshooting. If the defect is determined to be a result of a quality-related problem, we will promptly ship the necessary spare parts to you by air freight, ensuring a swift resolution and minimizing any potential downtime.
Q4: Do you provide overseas installation services by engineers?
In general, we supply a comprehensive instruction manual to enable our customers to conduct a self-installation. This is because our products are meticulously packaged in an organized manner, designed to be straightforward and easy to install. This approach not only simplifies the process for our customers but also helps in reducing costs. However, under specific circumstances, we are indeed able to provide overseas installation services, subject to applicable fees.
Q5.What other kinds of products do you have?
We offer a diverse range of products, including all kinds of industrial lifting mechanisms, like electric, hydraulic, and diesel winches and hoists (with a particular focus on non-standard models).
Q6: If we have an urgent need, can you arrange for a prompt delivery?
Once we have confirmed the parameters and the order is signed, we will prioritize urgent orders to fulfill your requirements in a timely manner. We understand the importance of timeliness in such situations and will do our utmost to expedite the delivery process, leveraging our efficient production and logistics capabilities to ensure that the product reaches you as quickly as possible.
Q7: I have limited headroom in my workshop. Is it possible to install a crane in it?
Absolutely. We have specialized crane products designed specifically for workshops with low headroom. Our experienced engineers will be able to create an optimal design tailored to the precise dimensions of your workshop, ensuring a seamless fit and efficient operation.
Q8: Do you supply lifting tools?
Yes, we can supply a wide variety of lifting tools, including hooks, electromagnetic devices, and grab buckets, among others.
Q9: Do you accept OEM/ODM business?
A7: Certainly. We have extensive experience in OEM production, having collaborated with numerous renowned crane brands and customers across the globe.
Q10. What kind of payment methods do you accept?
We accept T/T bank transfer, L/C, paypal, and other major payment platforms.
For Inquiry:
To provide you with the most fitting design solution, it would be extremely helpful if you could share the following details with us:
1. Lifting Capacity: Please specify the maximum weight your crane needs to lift. This crucial piece of information allows us to engineer a system that can handle your loads safely and efficiently.
2. Span Length (Rail Center to Rail Center): Let us know the distance between the centers of the rails. This measurement impacts the overall structure and stability of the crane we'll design for you.
3. Lifting Height (Hook Center to Ground): Indicate how high the hook needs to reach from the ground level. This helps in determining the appropriate mast or girder height for your lifting operations.
4. Rail Installation: Have you already installed the rails? If not, do you require us to supply them? And if so, what is the required length? This information helps us plan the complete setup for your crane system.
5. Power Supply: Specify the voltage of your power source. Different voltage requirements influence the electrical components and wiring design of the crane.
6. Working Condition: Describe the type of materials you'll be lifting, as well as the ambient temperature. These factors can affect the choice of materials, coatings, and mechanical properties of the crane to ensure its durability and performance.
7. Workshop Drawing/Photo: If possible, sharing a drawing or photo of your workshop would be highly beneficial. It gives our team a clear visual understanding of the space, layout, and any potential obstacles, enabling us to tailor the crane design even more precisely to your site.
Certifications
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