- Jul 01, 2025
- Case Studies
5-ton Overhead Crane for Material Production in Malaysia
Discover the 5-ton overhead crane designed for efficient material production in Malaysia. Enhance your operations with reliable lifting solutions tailored to industry needs. Explore our offerings now.
Malaysia's material production industry encompasses the manufacture of items such as metal sheets, plastic compounds, and composite panels. Facilities in this sector often run continuous processes that require precise, safe, and efficient handling of heavy components. In particular, material mixing, extrusion, and cutting lines handle parts weighing up to 5 tons. Overhead cranes serve a central role in these plants by moving raw materials, finished products, and tooling fixtures between workstations. A material production company in Penang was contacting Yuantai to see if we could provide them with a solution for a 5-ton crane.
Customer's Crane Need: 5 Ton Single Girder Overhead Crane Requirements
The plant's requirements included:
- Capacity: 5 000 kg safe working load for heavy mixer hoppers and palletized product stacks.
- Span: 6 m clear span to cover the full width of the mixing area.
- Lifting Height: 8 m under hook to clear ceiling piping and lighting fixtures.
- Control: Pendant control for simple operator use at floor level.
- Safety: Full compliance with local and international overhead crane standards.
Prior to this installation, the plant used mobile gantry cranes and forklifts. These methods proved too slow, unsafe in wet areas, and prone to congestion. The customer needed a fixed overhead lifting system to streamline the workflow.
Challenges Before Installing the 5 Ton Single Girder Overhead Crane
The customer's indoor workshop has the following challenges ah, so our engineers need to consider the following factors when designing cranes.
1. Limited Ceiling Height and Support Structure
The workshop's ceiling height was barely 10 meters, and existing HVAC ducts and lighting fixtures took up much of that space. Traditional twin girder cranes required additional headroom and new support columns, which the plant could not provide without extensive renovations. The customer required a low-headroom crane that could maximize hook lift in a limited vertical space.
2. Insufficient Floor Space
Ground-mounted cranes, such as gantry or jib versions, are not practicable when floor space is limited by heavy gear and dense pipe networks. Foundations and transit lanes must stay clear, yet existing equipment frequently blocks these places. Erecting new supports may necessitate costly pipeline relocations or trenching closures. Overhead cranes employ building-mounted runways and girders to traverse barriers without touching the ground. This method maintains workspace, prevents interference with industrial lines, and reduces civil labor. By moving the lifting mechanism above floor level, facilities achieve the necessary lifting capacity while keeping ground operations running.
Crane Design: 5 Ton Single Girder Overhead Crane with Wire Rope Hoist
Yuantai's 5-ton single-girder overhead crane with wire rope hoist offers both simplicity and durability. This crane is intended for moderate-duty lifting in tight headroom settings, delivering dependable service and precise load handling. Each component is intended to be long-lasting, easy to maintain, and integrated with existing infrastructure.
Single Girder Overhead Crane Structural Features
Yuantai proposed a single girder overhead crane from our standard series. Key design elements:
- Girder Profile: The bridge's hot-rolled steel I-beam with strengthened flanges can withstand a full 5-ton load without bending. The flange thickness and stiffener placement were guided by a Finite Element Method (FEM) analysis, which kept midspan deflection below L/800. The girder is protected against corrosion and industrial pollutants with a protective undercoat and two-component epoxy finish.
- Low‑Headroom Trolley: To optimize hook lift with just 2m of beam clearance, the trolley is underslung beneath the girder. Its compact gearbox and drum assembly are positioned as close to the beam flange as practicable. High-precision spacers place the load block perfectly below the beam web, providing an additional 300mm hook travel compared to ordinary trolleys.
- End Trucks: Each end carriage features four forged-steel wheels with sealed roller bearings. The wheel treads are machined to ±0.05mm tolerances to match the runway rail profile, ensuring smooth and vibration-free travel. Integral shock absorbers and polyurethane-lined buffers at each end of the runway absorb impacts, protecting the rails and wheels from damage.
- Span and Lift: This unit has a 6m bridge span and an 8m under-hook lifting height, which exactly complement the site's bay width and ceiling limits. The wire rope hoist, powered by a 15-kW motor and dual-speed gearbox, offers lift speeds of 2m/min (precise mode) and 10m/min (rapid traverse mode). The built-in weight limiter and upper/lower limit switches assure safe operation across the whole height range.
Wire Rope Hoist Configuration
An effectively built wire rope hoist is critical for providing the lifting force and precision required in modern crane applications. Yuantai's design incorporates a compact, high-performance hoist assembly directly onto the trolley, ensuring low headroom and robust load handling.
1. Hoist Mechanism
TThe system's core components are a high-strength steel drum and precision gearbox assembly housed snugly. The drum has several machined rope grooves to ensure uniform spooling and less rope fatigue. The gearbox employs helical gears for silent, smooth operation and is designed for continuous duty cycles to withstand severe industrial usage. Its small size maintains the crane's modest headroom requirement without losing torque or speed.
2. Wire Rope
We used an 8mm diameter, 6×36 compacted strand wire rope with a tensile strength of 1960 N/mm². This design features a steel core with six outside strands of 36 wires each, balancing flexibility and fatigue resistance. The rope has a safety factor of 5:1, exceeding industry norms for a working weight of 1000 kg. The rope's compressed shape also resists internal wear and keeps lubricant for longer periods of time, decreasing the need for maintenance.
3. Motor
The IE3-efficiency, single-speed electric motor provides consistent thrust for big lifts. The motor's class F insulation and IP55 rating allow it to operate at full capacity for lengthy periods of time without overheating. Vibration-damped mounting feet isolate motor vibrations from the trolley frame, extending component life and decreasing noise.
4. Limit Switches
Mechanical upper and lower limit switches prevent over-travel on the drum. Each switch has a roller-cam actuator that trips when the rope approaches its safe winding limit. The switches instantly stop power to the hoist motor, preventing cable overwind and drop-off.
5. Dual‑Mode Lifting
The hoist, which is mounted directly on the trolley, can lift at both rapid rates for hook positioning and slowly and precisely for final load placement. Operators pick the mode using the crane's control panel or pendant, which effortlessly switches between rates to meet workflow demands. This flexibility reduces cycle times while maintaining precise positioning when it counts the most.
Pendant Control System
The pendant control system provides a dependable, ergonomic interface for all crane motions. It has discrete hoist up/down buttons as well as separate bridge travel controls, all of which are labeled with intuitive iconography. A mechanically latching emergency stop switch cuts power to all motions and locks until manually reset. We chose a wired pendant over a radio remote to prevent signal interference in the metal-dense work area and reduce battery maintenance. The pendant cable is equipped with a durable, oil- and wear-resistant drag chain and an IP65 grade for dust and moisture protection, providing reliable operation even in tough industrial situations.
Operational Performance and Testing of 5 Ton Overhead Crane
Customers receive our cranes immediately after the organization of personnel to test, the test is mainly divided into overload test and and full load test, the final test results are as follows:
1. Overload Test Procedure
Following installation, the customer conducted an overload test at 125% of the rated capacity (6.25 tons). This static test held the maximum weight for five minutes, with no deformation or brake slip detected. The structural deflection at mid-span was less than 5 mm, falling below the L/750 limit for a 6 m beam (≤8 mm).
2. Load Test Protocol
A following load test utilized the entire 5 ton lifting capacity and dynamic transit across the span. The crane performed 20 consecutive lifts with full loads, simulating daily use. The motion was smooth, the brakes held firmly at stops, and the motor did not overheat.
Yuantai 5 Ton Bridge Crane and Wire Rope Hoist
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Additional Applications for 5 Ton Single Girder Overhead Cranes
Overhead cranes provide diverse lifting solutions that extend beyond traditional heavy industry locations. Single-girder cranes with a capacity of 5 tonnes offer a cost-effective and space-saving solution for precision load handling. The following are additional areas where these cranes improve productivity, safety, and workflow efficiency.
1.Automotive Parts Manufacturing
Engine assembly companies use 5-ton single-girder cranes to lift and position massive components including engine blocks, transmission housings, and huge tooling fixtures. Low-headroom variants fit under conveyor lines and paint booths, allowing continuous material flow without affecting overhead systems. Variable-speed hoists save cycle times and protect delicate machined surfaces.
2. Warehouse and Logistics Centers
Single-girder cranes can move pallet racks and cross-docking items while reducing floor traffic. These cranes, mounted on existing crane runways over pick-and-pack zones, eliminate the need for forklifts, increasing floor space and reducing aisle congestion. Integrated load-moment indicators update inventory systems in real time, and high-speed trolley transportation satisfies peak-season demand.
3. Metal Fabrication and Sheet Processing
Cranes weighing 5 tons transport steel plates, die sets, and heavy jigs between workstations in cutting, welding, and CNC machining operations. The compact girder design allows for the clearance of welding fume extraction ducts and machining center enclosures. Precision-controlled hoists minimize load swing, allowing plates to feed smoothly into laser cutters and press brakes. Optional magnetic lifting attachments speed up the handling of sheet bundles.
4. Laboratory and R&D Facilities
In research labs and pilot-scale manufacturing facilities, raising big test chambers, environmental chambers, or prototype assembly beyond the reach of floor cranes is common. A 5 ton overhead crane offers sufficient reach and clearance to safely transport large goods across benchtops and testing rigs. Adjust hoist speeds and use pendant or wireless controls to place sensitive equipment without causing vibrations or shocks that could affect test results.
Conclusion
The 5 ton single girder overhead crane with wire rope hoist was an effective solution for the Malaysian material production business. The product's low-headroom design, strong safety features, and consistent performance suited the customer's needs for safe and efficient lifting. Overload and load tests confirmed the crane's structural and mechanical soundness. Manufacturers who use Yuantai crane systems may boost productivity, cut costs, and improve facility safety.
