- May 20, 2025
- Case Studies
5 ton LD Bridge Crane to Ivory Coast in an Ivorian
Discover the delivery of a 5-ton traditional bridge crane to an Ivorian manufacturing facility, enhancing operational efficiency and productivity in Ivory Coast.
In many industrial sectors, reliable overhead lifting equipment is fundamental to maintaining consistent production schedules, improving workplace safety, and managing materials efficiently. This case study examines the successful delivery and operation of a 5-ton LD traditional bridge crane supplied by Yuantai Crane Company to a manufacturing plant in Ivory Coast. It provides insight into the customer's industrial background, specific lifting requirements, pre-installation challenges, crane design features, and the operational versatility of the equipment.
Industry Background
The client operates a mid-sized manufacturing facility in Ivory Coast that produces and assembles heavy mechanical components for agricultural equipment, industrial machines, and structural projects. Their daily operations involve lifting, positioning, and moving steel parts, castings, and fabricated modules that can weigh from several hundred kilograms to several tons. As industrial activity grows across West Africa, especially in Côte d’Ivoire, the need for reliable and cost-effective lifting equipment is increasing. Facilities like this require cranes that can handle dusty working conditions, unstable power supply, and continuous heavy-duty use. They also need systems that are easy to maintain and deliver consistent performance with minimal downtime.
Customer Needs
In order to meet their increasing production needs, the customer required a reliable lifting solution. Workflows were slowed down and safety issues were brought up by their existing tools. In order to expedite handling, minimize manual labor, and optimize the workshop, they desired a stationary overhead crane. The solution needed to cause the least amount of disturbance to their current floor plan and power supply.
1. Existing handling setup
Before the Yuantai crane, the plant relied on manual hoists and a mobile gantry system for everyday lifts. Operators moved heavy parts by hand and by rolling the gantry into position. This method worked for small, occasional loads but struggled when production volumes rose. It also required extra time to set up and re-position the gantry for each task.
2. Slow material movement
Material transfers took too long because workers had to stop production to bring the gantry into place or rig a manual hoist. There were lines at important stations because of the stop-start flow. Slow transfers resulted in fewer assembly being finished per shift and longer cycle times.
3. Safety hazards during handling processes
Workers spent a lot of physical effort lifting, guiding, and stabilizing loads by hand. Repetitive manual tasks increased fatigue and the chance of musculoskeletal injuries. Handling awkward or heavy parts without stable overhead support raised the risk of dropped loads. These conditions also increased the plant's exposure to workplace incidents and related costs.
4. Poor utilization of vertical space
The facility wasted precious vertical space since it lacked a fixed overhead system. As gantries, carts, and staging areas took up valuable workspace, the floor became disorganized. This hindered effective material flow pathways and decreased throughput. Improved vertical handling would free up floor space for storage and production.
5. Customer requirements and key expectations
Due to the lack of a fixed overhead system, the facility wasted significant vertical space. The floor became cluttered as gantries, carts, and staging areas consumed prime workspace. This reduced throughput and blocked efficient material flow paths. More floor space for production and storage would result from improved vertical handling.
Challenges Faced Before Crane Installation
1. Inefficient Workflow
Manual hoisting methods created workflow delays. Two to three workers were needed to lift a single part, often requiring additional safety supervision. This reduced productivity by an estimated 18% according to internal reports. In addition, tasks such as assembling large components or transferring heavy tools between workstations took longer, leading to bottlenecks in the production line. Operators also had to wait for equipment availability, increasing idle time during peak shifts.
2. Safety Concerns
The plant had encountered two minor workplace injuries in the year preceding the crane purchase, caused by unstable load handling during manual lifting. These incidents occurred while workers were attempting to reposition awkward or imbalanced components by hand or using makeshift lifting methods. While no serious injuries were reported, the risks posed by inconsistent lifting techniques were a growing concern. This highlighted the need for a controlled, mechanical lifting solution to minimize human exposure to hazardous tasks.
3. Limited Load Capacity
Their mobile gantry crane was limited to 2 tons, and could not safely handle certain production components, especially during peak output months when demand rose. Some parts required lifting capacities beyond 3 tons, forcing workers to break them into smaller subassemblies for transport—an inefficient and labor-intensive workaround. At times, production had to be rescheduled or slowed due to the unavailability of appropriate lifting equipment.
4. Wear and Tear on Mobile Equipment
Forklifts and trolleys used inappropriately for vertical lifting suffered frequent mechanical breakdowns, increasing maintenance costs. These tools, not designed for lifting tasks, experienced damage to hydraulic systems, wheel assemblies, and structural frames. Their misuse also led to more downtime for repairs and higher costs for replacement parts. Over time, this created an unplanned maintenance burden and reduced the overall efficiency of the workshop.
Product Overview: Yuantai LD Type Single-Girder Overhead Bridge Crane
The selected product for the client was the LD model single-girder overhead crane, designed and manufactured by Yuantai, a trusted crane manufacturer with extensive experience in heavy-duty lifting systems.
Key Specifications:
- Rated Load Capacity: 5 tons
- Span: 16 meters (customizable as per facility dimensions)
- Lifting Height: 6 meters
- Travel Speed: 20 m/min (bridge), 8 m/min (trolley)
- Control Mode: Pendant control and remote control
- Hoist Type: Electric wire rope hoist
- Power Supply: 380V/50Hz/3-Phase (customizable for local requirements)
Design Features That Meet Diverse Industrial Requirements
1. Modular Steel Structure
The crane's main girder is fabricated from Q235B steel, using box beam construction. This ensures high strength while keeping the structure light and easy to install. The modular design reduces site assembly time and supports future expansion. Additionally, the use of standard connection interfaces allows for seamless integration with auxiliary systems such as walkways, maintenance platforms, and auxiliary cranes, making it adaptable to evolving production needs.
2. Reinforced End Trucks
The end carriages are equipped with high-precision wheels and double-speed motors. These enable smooth travel along the rail tracks with minimal vibration, which is crucial for precision positioning of components. The end trucks are also engineered with a load-balancing system and shock-absorbing buffers, which help distribute loads evenly across the track and extend the lifespan of the mechanical and structural components.
3. Durable Wire Rope Hoist
The electric hoist unit features an overload limiter, emergency stop, and upper/lower limit switches, ensuring safe operation under demanding conditions. It is capable of handling repeated lifting cycles with minimal downtime. The hoist drum is precision-machined and grooved for optimal rope alignment, reducing wear on the wire rope and increasing lifting accuracy. The gearbox and motor are designed for continuous duty, meeting FEM and ISO service classifications.
4. Dust and Humidity Resistant Components
Given the region's humid tropical climate, electrical components and motor housings are sealed to IP54 standards, protecting against dust and moisture ingress. This enhances operational reliability and lifespan. Key components such as control panels, limit switches, and brake units are treated with anti-corrosive coatings and equipped with breathable vents to prevent condensation, further safeguarding the internal circuitry.
5. Flexible Operation Modes
The system supports remote wireless control, allowing operators to stay at a safe distance during load movement. An optional cabin control system can also be integrated for future upgrades. The remote control is ergonomically designed for single-handed operation, with customizable buttons and feedback indicators. The control system can also be programmed for semi-automated routines, increasing efficiency for repetitive lifting tasks.
Yuantai Single Girder Overhead Crane
Installation and Onsite Integration
Yuantai provided pre-assembly engineering drawings and installation guidance remotely. The crane system was installed in 7 days, with two local technicians and one remote support engineer coordinating the process. Minimal structural modifications were required due to the crane's customized support bracket design, tailored to the plant's existing steel column layout.
Advantages of Yuantai LD Bridge Crane
1. High Cost-Effectiveness
Compared to double-girder cranes, the LD single-girder system offers lower cost without compromising performance for 5-ton capacity tasks. It requires less structural support, which reduces overall project investment. The simplified design also lowers transportation and installation expenses, making it a practical choice for small to medium-sized manufacturing facilities and maintenance workshops that need reliable lifting capabilities without exceeding budget constraints.
2. Low Maintenance Requirements
The system uses sealed bearings, wear-resistant rails, and a self-lubricating hoist. These features minimize the need for regular mechanical servicing, a major advantage in regions with limited access to technical personnel. Routine inspections can be performed quickly without disassembly, and critical components are designed for long intervals between service checks, reducing downtime and ensuring continuous operation.
3. Long Service Life
Thanks to its corrosion-resistant paint, quality electrical systems, and wear-proof materials, the crane is projected to operate reliably for 10+ years under regular usage conditions. The main structural parts undergo anti-fatigue testing, and the hoist motor is engineered for high duty cycles. All components are selected based on industry-standard certifications, which further ensure long-term dependability even in demanding production environments.
4. Operator-Friendly Controls
The dual-mode control system ensures that inexperienced operators can manage the crane safely after a brief training period. Emergency stop and limit switches provide an extra layer of protection. The intuitive pendant and wireless remote controls feature clear labeling and responsive commands, while system diagnostics and visual indicators assist in identifying any operational anomalies early, promoting safer handling and faster issue resolution.
Other Industry Applications
The Yuantai 5-ton LD bridge crane is a versatile tool for many industrial settings. It lifts loads up to five tonnes with steady, controlled motion. The crane installs in standard workshops and larger plants. It reduces manual handling and speeds up routine tasks.
1. Automotive part assembly plants
Cranes are used in assembly factories to transfer large subassemblies like as engines, gearboxes, and subframes between workstations. It assists line operators in accurately positioning components for welding and fastening. The crane reduces takt-time by doing away with the need for human repositioning. Additionally, it increases safety by eliminating the need for makeshift ladders and slings. It allows mixed-model lines and batch operations with easy-to-use controls and predictable motion.
2. Steel fabrication workshops
Plate, channel, beams, and welded assemblies are handled by cranes in fabrication shops. It enables specialists to spin and raise large objects into cutting and welding jigs. Part alignment prior to tack welding is aided by precise trolley travel. Because of the crane, fewer people are required to lift big, cumbersome objects. In this demanding, spark-filled environment, uptime is increased via hardened lifting attachments and replacement worn parts.
3. Warehouses with heavy inventory movement
Palletized loads, crates, and machine components are moved by cranes across aisles and to staging areas in high-density warehouses. For trucks and containers, it speeds up the loading and unloading process. Forklifts can concentrate on short moves since the overhead layout frees up floor space. By doing this, dwell time is reduced and the chance of damage from frequent forklift transfers is decreased. Operators can reliably index multi-bay activities with simple controls.
4. Agricultural machinery repair facilities
Tractors, combines, engines, and accessories are lifted by cranes in repair shops for maintenance and refurbishment. It speeds up and secures disassembly and reassembly. With precise control, technicians can lower large parts into roll frames or platforms. In addition, the crane can carry spare gearboxes and hydraulic pumps and enables transportable workshop installations. Its small size makes it suitable for low-bay rural garages.
