- Sep 16, 2025
- Case Studies
7.5 Ton Chain Hoist for Rubber Processing in Sri Lanka
Explore our powerful 7.5 Ton chain hoist, perfect for rubber processing in Sri Lanka! Elevate your operations with ease and efficiency. Check it out now!
Our customer from the rubber industry wanted a reliable, compact lifting solution for heavy rubber bale handling and occasional heavy equipment maintenance. They needed a rugged hoist for safe bale transfer, truck unloading and more. Minimize manual handling and speed up transit.
What is the customer's crane need?
Every production plant has unique material handling challenges, and the rubber industry is no exception. The customer in this case needed a lifting solution that could handle both day-to-day material flow and heavy maintenance work. Their plant layout included narrow pathways, a single I-beam run, and machines that required precise handling during servicing. The right hoist had to be compact, safe, and versatile enough to manage both raw material transfers and equipment repairs, while ensuring minimal downtime. After communicating with the customer, we understand the customer's lifting needs as follows:
1. Intra-plant transfer of raw rubber and bales
Rubber plants deal with large volumes of raw material in bale or palletized form. These loads are bulky, heavy, and difficult to move manually. The customer needed a hoist to make internal transfer safer and more efficient. One key task was moving raw rubber bales from the pressing line into designated storage areas. Since the plant had tight clearances and limited floor space, the hoist needed to offer smooth travel and precise load positioning. Another major task was moving bundles of semi-processed rubber between process stations. This required a hoist that could operate within narrow lanes and allow careful control to avoid damage to both the material and the surrounding equipment. The hoist also had to support unloading full truck consignments arriving at the receiving area.
2. Equipment maintenance and tooling lifts
In addition to the transportation of raw material handling, the plant requires regular equipment maintenance. Rubber processing machines such as presses, extruders, and molds are heavy and often run continuously. To maintain efficiency, the plant needed a hoist that could handle partial disassembly of these machines without requiring a full shutdown. For example, lifting sections of a press or removing an extruder screw requires steady, controlled lifting to avoid misalignment or damage.
3. Customer's installation requirements
During the pre-communication of requirements, we understood that the customer focuses on efficiency, safety, and secondly, wants it to cost less. Since their shop was already equipped with an I-beam track, they only needed a suitable hoist that could be mounted on the I-beam, avoiding the need to add additional steelwork as well as cost. At the same time, they wanted a hoist that operators could use with ease, featuring simple and intuitive controls suitable for daily material handling tasks.
Crane We Design
To meet the client's lifting needs, we delivered a complete 7.5-ton electric chain hoist package designed for safety, reliability, and long-term performance. The system was tailored to handle heavy loads in a production setting while keeping daily operations efficient and compliant with international safety standards. We offered a turn-key package centered on a single 7.5 ton electric chain hoist with the following key elements:
1. Core hoist
The hoist is rated for a safe working load (SWL) of 7.5 tonnes, making it suitable for lifting large and heavy components. It is powered by a robust electric motor with an integrated mechanical brake to ensure secure load holding. The lifting mechanism uses a hardened alloy load chain, the hoist body uses a heavy-duty cast or fabricated steel frame that provides rigidity and resists deformation under load. Its housing protects the gearbox and motor, allowing the system to handle frequent starts and stops without excessive wear. A helical gearbox ensures smooth, low-noise operation, while a fail-safe mechanical brake securely holds the full load even if power is lost. The lifting is performed by a heat-treated alloy load chain rated for overhead lifting applications. A chain container keeps the slack chain clear of the floor and work area, preventing contamination and reducing trip hazards.
2. Trolley and mounting
We provided both motorised and manual geared trolley options for mounting on the client's existing I-beam. The motorised trolley allows smooth and precise load movement across the beam, giving operators better control when positioning loads at the press or storage area. For budget-conscious projects, the manual geared trolley provides reliable operation without sacrificing safety.
3. Controls and safety devices
Depending on operational needs, the hoist can be configured with single or dual-speed options. Dual-speed operation is especially useful for precise load positioning at slow speed and efficient movement at higher speed. For enhanced control, we also offered a Variable Frequency Drive (VFD) on the trolley and traverse systems, ensuring smooth acceleration and deceleration to reduce mechanical stress. The system is operated through a pendant control station equipped with an emergency stop button. For greater flexibility, we also offered an optional radio remote control, allowing operators to handle loads from a safe distance. To protect the equipment and operators, we included upper and lower mechanical limit switches to prevent accidental over-travel, as well as an electronic load limiter or slip-clutch overload protection in line with site safety policies.
4. Environmental and duty configuration
The hoist and controls are designed with an IP rating that ensures resistance to dust and humidity, making them suitable for harsh plant conditions. We selected a duty classification of FEM 2m / ISO M5, appropriate for medium to heavy intermittent loads typical in processing plants. This classification supports a high duty cycle and reliable daily use without excessive wear.
How the Supplied Design Meets the Plant's Lifting Needs
The 7.5-ton chain hoist was selected to offer a dependable, adaptable, and secure lifting solution for the day-to-day operations of the facility. From transporting unprocessed rubber bales to assisting with heavy machinery maintenance, its design tackles a variety of material handling issues. Strict safety regulations are met while efficiency is guaranteed by the hoist's combination of strength, small size, and precise control. Each plant need is directly related to how the provided hoist satisfies or surpasses those requirements below.
1. Intra-plant transfer of rubber bales
The hoist offers precise load positioning with its slow-speed mode and motorised traverse, which help operators place bales under presses or into racks with accuracy. For plants with high handling frequency, the FEM 2m/M5 duty rating supports frequent lifting cycles per shift while minimizing premature wear. Its compact, low-headroom design makes it a better fit than bulkier wire rope units, ensuring loads clear surrounding process equipment in areas with limited vertical space.
2. Truck unloading and receiving
Unloading inbound materials requires dependable capacity and safety features. The 7.5-ton rating covers a wide range of heavy palletized loads, stacked bales, and bundled shipments with ease. A built-in load limiter and fail-safe brake protect operators during truck offloading by preventing overload and uncontrolled descent, ensuring consistent safety for both workers and materials.
3. Equipment maintenance and tooling
The hoist also plays a critical role in supporting maintenance activities. Its mechanical brake provides stable load holding during tooling adjustments, preventing movement while press plates or assemblies are serviced. Dual-speed lifting and pendant controls give operators fine control, particularly when lowering heavy components into place. With hoists installed near key equipment, maintenance cycles are quicker, as partial assemblies can be lifted without needing to move entire machines, reducing downtime.
Why this 7.5 Ton Chain Hoist Performs for This Customer
Capacity is never the only factor to consider when selecting a lifting system. It is about how well the hoist integrates into the customer's operations, how safely it can perform under real conditions, and how much value it delivers over its working life. This 7.5 ton chain hoist meets those expectations by combining compact design, cost efficiency, safety assurance, and proven durability.
1. Compact and flexible
The hoist is designed to fit into spaces where larger equipment cannot be installed. Its compact body and versatile mounting options make it easy to place on existing beams or runways with little to no structural modification. This is especially valuable in older facilities or crowded production lines where space is limited. Its flexibility also allows it to be relocated or reconfigured if workflows change, giving the customer long-term adaptability.
2. Lower total cost of ownership
This chain hoist offers real savings in long-term ownership because it is less expensive to install, service, and repair compared to wire rope hoists of similar capacity. For applications with intermittent heavy-load lifting, it is a more economical choice. Fewer spare parts, easier access for inspections, and lower maintenance requirements all contribute to reduced lifecycle costs, which helps the customer keep operating budgets under control.
3. Robust safety features
Safety is a non-negotiable factor in material handling, and this hoist is equipped with essential protective systems. Overload protection ensures the hoist will not lift beyond safe working limits. Mechanical brakes hold loads securely, even in the event of a power failure. Upper and lower limit switches prevent dangerous over-travel, protecting both the equipment and the operators. Together, these features comply with international safety standards and provide peace of mind for the customer, reducing the risk of accidents and downtime.
4. Long service life with proper duty selection
Durability is built into the design, but correct duty selection ensures the hoist reaches its full potential. Rated at FEM 2m / ISO M5, it is engineered for regular heavy use without excessive wear. When operated within its defined duty cycle, the hoist can maintain predictable maintenance intervals and deliver a safe working period of up to ten years, in line with FEM guidance.
Yuantai Chain Hoist
Other Applications of a Chain Hoist
A 7.5-ton chain hoist fits many tasks beyond rubber processing. It balances heavy capacity with a compact footprint. Users pick it when headroom, mobility, or intermittent heavy lifts matter more than continuous high-speed duty. Choose the right mounting, trolley, and protection to match the work environment. Inspect and maintain it regularly.
1. Metal Fabrication Shops
In metal shops a 7.5-ton chain hoist moves heavy dies, molds, jigs, and welded assemblies with precision. Fit the hoist to a push or powered trolley to travel along beams and position parts for welding or machining. Use spreader bars, lifting beams, or magnet/plate clamps to keep loads balanced and to protect parts. Select hoists with suitable duty class and braking for the shop's cycle. Provide chain containers, taglines, and clear lift paths to reduce swing and collision risk. Regular inspection of load chains, hooks, and gearbox oil keeps the system reliable.
2. Maintenance shops
Maintenance shops use a 7.5-ton hoist to lift engines, gearboxes, transmissions, and press-fit components during repair or overhaul. Portable trolleys and gantry mounts let technicians move the hoist to different vehicles or machinery bays. Use controlled slow speeds for precise alignments and soft-start controllers to protect bolted joints. Ensure multiple lifting points or engine cradles for long loads. Keep lift plans and rigging gear documented, and train staff in safe rigging, slinging angles, and tag-out procedures to avoid dropped loads.
3. Paper and pulp mills
Paper and pulp plants handle heavy rolls and service parts that a 7.5-ton hoist can lift when fitted for harsh conditions. Specify corrosion-resistant finishes, sealed gearboxes, and high IP ratings for damp, chemical-rich areas. Use roll cradles, cradle hooks, or spreader beams to support curved rolls and prevent damage. Because mills run demanding schedules, pick a hoist with an appropriate duty cycle and easy access for maintenance. Schedule frequent inspections for chain wear and contaminant ingress to ensure safe, continuous operation.
4. Light steel mill tasks and warehouses
Light steel mills and warehouses use 7.5-ton hoists where lifts are heavy but intermittent and headroom is limited. The compact chain design suits under-hung trolleys and gantry systems that must travel inside narrow aisles. Use the hoist for stacking, loading trucks, and moving dies or molds between stations. Fit end stops, load limiters, and appropriately rated trolleys to protect runway beams. For warehouse inventory work, pair the hoist with clear signage and operator training to keep handling fast and safe.
Chain hoists win on compactness, simplicity, and adaptability. They fit small headroom spaces, mount to various trolleys and gantries, and swap between jobs more easily than many wire-rope systems.
