- Aug 25, 2025
- Case Studies
10 Ton LD Single Girder Overhead Crane for Zambia Warehouse
Yuantai supplied a 10 Ton LD Single Girder Overhead Crane for a Zambia warehouse. The cost-effective lifting solution improved material handling with reliable CD hoist performance.
A Zambian warehouse operator needed a durable, budget-friendly lifting solution for on-both-sides overhead handling. We initially proposed a 10-ton Euro single girder overhead travelling crane, but due to the customer's budgetary constraints, we finally delivered a lower-cost, economical 10-ton LD single girder overhead travelling crane equipped with a CD-type electric wire rope hoist (working class M3). The LD + CD combination delivered safe, reliable lifting for daily material handling, reduced installation costs, and preserved long-term uptime with straightforward maintenance.well.
What the Customer Needed — Crane Requirements
The customer's operational needs were simple but important:
- Capacity and frequency: Repeated lifts up to 10 metric tons across the warehouse.
- Two-side installation: A crane on both sides of the building to create overlapping working zones and faster load handling.
- Durability and uptime: Equipment had to be rugged for daily industrial use and require minimal downtime.
- Budget sensitivity: The customer asked for a solution that cut capital outlay while retaining essential safety and performance.
The customer's priority was to streamline warehouse handling efficiency without overcomplicating the infrastructure. Their facility layout called for flexible material movement across two working zones, and any downtime in lifting operations would directly impact productivity. Safety was equally important—both for operators and for the integrity of the loads being transported—so the solution needed to combine reliable lifting performance with user-friendly controls. Moreover, since the warehouse operated on a tight budget cycle, the customer sought a cost-effective crane system that could deliver long-term value, reduce maintenance costs, and avoid expensive over-specification. In short, the challenge was to design a practical yet dependable overhead crane solution that balanced performance, safety, and affordability.
How the Overhead Crane We Provided Can Solve Various Tasks
The 10 Ton LD Single Girder Overhead Travelling Crane combined with a CD electric hoist proved to be the ideal combination of dependability, performance, and affordability when the customer needed an effective lifting solution for their busy warehouse. The LD model offers smaller dimensions, lower structural loads on the building, and simpler integration into existing facilities in contrast to bigger double girder systems. While controlling long-term operating and maintenance expenses, it successfully handled a variety of difficult duties, from repetitive heavy lifting to erratic load handling, despite its fairly straightforward design. I describe how the crane effectively addressed the particular operational issues raised by the customer below.
1. Handling Repeated Heavy Lifts and Cycle Demands
Moving big pallets, welded steel assemblies, and packed items from one workstation to another was necessary for the customer's everyday operations. With its smooth, controlled lifting and traversing that reduced load swing and increased safety while lowering the possibility of damaging delicate components, the 10-ton LD crane met the task. Its working class M3 CD hoist was well suited to the modest duty cycles required; it could start and stop frequently without overheating or wearing out too quickly. In order to balance operator safety and productivity, lifting and travel speeds were adjusted to the process. The LD crane reduced rework from improperly handled goods, streamlined operations, and guaranteed constant output in a high-demand production setting by offering reliable handling of large things.
2. Reduce Congestion on the Shop Floor
Congestion in the warehouse's workflow was one of the main issues for the customer. The facility acquired a material handling solution that functioned completely overhead without taking up valuable ground space by implementing bridge cranes mounted on steel structures along both sides of the building. By removing obstacles from the floor and enabling operators to transport large loads directly above work areas, this design avoided traffic jams and decreased the possibility of accidents brought on by clogged roads. The cranes provide smooth coverage for lifting and moving items between different areas of the warehouse, while the overhead system established orderly, unobstructed ground routes for workers and mobile equipment. Workflow improved as a result, becoming safer, more efficient, and able to sustain larger throughput without necessitating an expensive expansion of the building's footprint.
3. Rigidity Under Irregular Loads and Simple Maintenance Requirements
Unpredictable loading situations, such as shifting, asymmetrical, or off-center loads, are common in warehouses. Even in situations where the load location wasn't ideal, the LD single girder crane's torsional rigidity was designed to withstand such situations up to its 10-ton rated capacity, guaranteeing safe and predictable operations. With fewer moving parts in the trolley, hoist, and end carriages than more intricate systems, its straightforward design meant less wear and a decreased likelihood of unplanned malfunctions. Quick completion of maintenance procedures like brake adjustment, lubrication, and rope inspection would save downtime. In addition to offering durability, the structure's bolted girder connections and common steel grades made replacement or reconfiguration simple in the event that the customer's scheme altered later. Reliable long-term operation with low lifecycle costs was achieved by this combination of robustness and ease of maintenance.
Comparison of Different Crane Solutions
Single girder overhead cranes are widely used in factories, warehouses, workshops, and production facilities because they can efficiently lift and handle materials. We offer two lifting solutions: the HD single girder overhead crane and the LD single girder overhead crane. Although both cranes feature a single-girder structure, they are designed for different operating environments. The HD model emphasizes a compact design, higher efficiency, smoother operation, and better space utilization, while the LD model focuses on a simple structure, reliable performance, and cost-effective lifting operations.
1. HD Single Girder Overhead Crane
The HD Single Girder Overhead Crane is a European-style overhead lifting solution designed for customers who require higher efficiency, better space utilization, and smoother crane operation. Compared with traditional single girder cranes, the HD crane reduces dead weight while maintaining structural strength, which helps lower wheel pressure on the runway system and reduce requirements for the supporting structure of the building. The compact hoist design also provides better hook approach distance and higher lifting height, making it suitable for workshops where every meter of working space matters. The HD single girder overhead crane is especially suitable for modern manufacturing plants, precision assembly workshops, automotive factories, machinery production facilities, and warehouses that require frequent lifting operations. Its smoother traveling system and variable-frequency control options allow operators to move loads with better accuracy, which is important when handling expensive components such as motors, molds, electrical equipment, and mechanical parts.
2. LD Single Girder Overhead Crane
The LD single girder overhead crane is a traditional single girder bridge crane designed for general industrial lifting applications. It features a simple structure with a welded main girder, end carriages, and a suspended electric wire rope hoist, usually using CD or MD type hoists. Because of its mature design and fewer structural components, the LD crane offers a lower initial investment and easier maintenance. It is widely used in workshops, warehouses, repair facilities, and general manufacturing plants where lifting tasks are regular but do not require extremely high operating performance. If you need a reliable and cost-effective lifting solution, the LD-series overhead crane is a practical choice. It is capable of handling a wide range of common material-handling tasks, such as moving steel components, machine parts, production materials, and finished goods. Its simple design also makes daily maintenance of the crane more convenient.
HD vs LD Single Girder Overhead Crane: Main Design Differences
Although both cranes belong to the single girder overhead crane family, their structural design philosophy is different. The HD crane uses a more optimized European-style design, while the LD crane uses a conventional industrial design that focuses on simplicity and economy.
| Comparison Item | HD Single Girder Overhead Crane | LD Single Girder Overhead Crane |
|---|---|---|
| Design Standard | European FEM/DIN style design | Traditional industrial crane design |
| Main Structure | Lightweight optimized box girder | Conventional welded girder structure |
| Hoist Type | NR European wire rope hoist | CD/MD electric wire rope hoist |
| Main Advantage | Efficiency, precision, compact structure | Reliability, simple design, lower cost |
| Building Load | Lower wheel pressure | Higher wheel pressure |
| Operation Smoothness | Higher, suitable for precision handling | Stable, suitable for general handling |
| Maintenance | Modular components, optimized design | Simple maintenance structure |
| Initial Investment | Higher | Lower |
Given the customer's explicit budget constraint, absence of restrictive headroom, and requirement to install two identical units, the LD solution delivers the best balance of immediate affordability, minimal installation complexity, acceptable reliability, and easy local maintenance. It meets the expected operational profile (predictable, repetitive lifts) without unnecessary premium features that would not be fully utilized.
Yuantai Single Girder Overhead Cranes
| LD Single Girder Overhead Cranes | HD Single Girder Overhead Cranes |
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The LD single-girder bridge crane is a cost-effective lifting solution suitable for workshops and warehouses. Featuring a single-girder design and equipped with a CD or MD electric wire rope hoist, it meets general material handling needs.
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HD overhead cranes comply with European standards and are designed for modern industrial applications. With its compact design, low maintenance requirements, and high positioning accuracy, it is an ideal choice for factories and production lines.
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| Single Girder Underslung Overhead Crane | LDP Single Girder Low Headroom Bridge Crane |
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The underslung overhead crane is installed directly on the building roof structure without floor support, making it suitable for facilities with limited floor space and providing flexible material handling along existing production areas.
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The LDP low headroom bridge crane uses a compact low headroom hoist design to maximize lifting height in buildings with limited clearance, making it ideal for workshops that need higher hook travel and efficient space utilization.
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Design details of the 10 Ton LD Single Girder Overhead Travelling Crane we provided
This LD crane is built to lift 10 tons safely while keeping costs and upkeep low. It uses proven parts and straightforward controls. You get a simple layout that is easy to inspect. The design matches light-to-medium workshop work. We balanced strength, serviceability, and price so you can use the crane day after day with minimal fuss.
1. Main components of the 10 Ton LD Single Girder Overhead Travelling Crane
We chose standard industrial materials so spare parts stay available. The layout keeps service points reachable. Controls and safety items are modular so you can add options later.
1.1 Main girder
The main girder is sized for your span and the 10-ton rated load. We use either high-strength I-section steel or a box girder when torsion or longer spans demand it. Connections between web and flange are bolted where transport or field assembly matters, and welded where a continuous section gives better stiffness. Materials follow common industrial grades (Q235B/Q345B equivalents). The girder is checked for deflection limits and fatigue life. We add local stiffeners and splice plates as needed, and we finish the steel with a corrosion-resistant coating for longer life in humid or industrial atmospheres.
1.2 End carriages and wheels
Wheels and carriages are matched to the runway and calculated wheel loads so the crane runs smoothly and wears evenly. The wheels are rolled steel with a standard profile for compatibility. Bearings come sealed to cut grease points and lower routine service. Axles and wheelsets are made for easy alignment, and wheels are replaceable in the field. We also provide provisions for wheel lubrication, runway adjustment, and inspection access so you can keep running without long stops.
1.3 Hoist
CD type electric wire-rope hoist, single speed, working class M3 (suitable for light-to-medium duty and frequent lifts). The hoist is the CD wire-rope type chosen for proven durability in light-to-medium workshops. It meets M3 duty class for frequent lifting cycles. Typical hoist lift speeds range from about 3.5 to 8 m/min to match routine shop needs. The unit includes upper and lower limit switches, a mechanical or electronic overload limiter, and thermal protection on the motor. The rope drum and reeving are sized for long rope life and straightforward replacement. We keep hoist maintenance simple with easy access to the gearbox, motor, and rope lead.
1.4 Electrical control
Controls are modular so you can pick the level you need. Standard contactor control gives a rugged, low-cost solution. PLC-ready panels are available if you want diagnostics or future automation. Safety features include an emergency stop, travel limit switches, and overload protection for hoist and travel. We offer pendant control as standard and optional radio remote for better operator visibility. The control cabinet is rated for industrial environments and laid out so electricians can troubleshoot quickly.
1.5 Work grade & environment
The crane is specified for Work Grade A3/A4, making it ideal for regular workshop or warehouse use. Components and finishes suit tropical climates: electrical enclosures can be IP-rated, wiring and insulators are chosen for high humidity, and steel is treated against rust. If the site has dust, heat, or outdoor exposure we can add weatherproofing, higher IP ratings, or special paints. Duty cycle recommendations and a simple maintenance schedule come with the crane so you know how to keep it operating reliably.
Key specification snapshot (example delivered configuration)
- Model: LD single girder.
- Capacity: 10 t (10,000 kg).
- Hoist type: CD electric wire rope hoist, working class M3.
- Lifting speed (interpreted/spec range): up to 8 m/min (typical CD single speed).
- Crane travelling speed: 20 m/min (standard single-speed configuration).
- Span and lifting height: manufactured to the warehouse span and clear height as required by the customer.
- Power supply: Typical industrial 3-phase 380–415V 50/60 Hz (customized to local supply).
