As construction and infrastructure projects become more complex, moving workers and materials through restricted or non-linear spaces requires specialised lifting equipment. Conventional construction hoists are generally designed for straight vertical movement, which can limit their use in structures with curved surfaces, unusual geometries or restricted installation areas. Curved hoists address these requirements by providing controlled transportation along customised lifting paths.
CMAC India Pvt. Ltd. manufactures curved hoist systems designed to support material and personnel movement in specialised construction and infrastructure applications. The Hyderabad-based company is ISO 9001:2015 certified and provides vertical transportation equipment for construction projects across India. Its curved hoists are developed to meet site-specific lifting requirements, particularly in structures where conventional hoisting arrangements may not be suitable.
Curved Hoist Design for Specialised Construction Applications
A curved hoist is a specialised lifting system designed to transport workers and materials along a predetermined curved route. Unlike conventional hoists that operate on straight vertical guide structures, these systems can be configured to follow the geometry of a particular structure.
This capability makes them useful in projects involving chimneys, cooling towers, bridges, tunnels and other infrastructure facilities. The equipment can be adapted to different structural configurations, allowing contractors to address lifting requirements in locations where access and installation space are limited.
CMAC’s curved hoists incorporate high-capacity drive systems and mechanical components designed for consistent operation under demanding site conditions. The equipment uses high-grade construction materials to support structural stability and extended service life.
Depending on project requirements, the hoisting arrangement can be installed beneath concrete slabs, attached to existing steel structures or supported through independent frameworks. These installation possibilities provide contractors with greater flexibility when planning vertical transportation systems.
Key Features of CMAC Curved Hoists
The equipment is designed to handle both personnel and construction materials, supporting different lifting requirements during construction, installation and maintenance activities.
Some of its main features include:
- Single-cage configuration: Provides a controlled arrangement for transporting workers and materials.
- Personnel and material transportation: Supports vertical movement of construction teams, tools and equipment.
- Multiple speed options: Available configurations include fixed and variable speeds of 30 m/min, 0–60 m/min and 0–90 m/min, depending on the equipment configuration.
- Power consumption: Regular hoist configurations generally operate within a power range of 15 kW to 78 kW, depending on the selected model and operating requirements.
- Adaptable installation: Can be configured for different structural conditions and project layouts.
These features allow contractors to select equipment configurations based on the required lifting capacity, travel distance and site conditions.
Technical Specifications and Lifting Capacity
The selection of a curved hoist depends on factors such as the number of passengers, material weight, lifting height and required operating speed. CMAC offers equipment configurations designed to accommodate different project demands.
The available specifications include:
- Rated load capacity: 1 to 2 tonnes
- Passenger capacity: 10–16 persons
- Rated lifting speed: Approximately 33 metres per minute
- Maximum lifting height: Up to 400 metres
These specifications provide an indication of the equipment’s capacity for high-rise and specialised infrastructure applications. The final configuration can be selected according to the project’s operational and structural requirements.
Installation Arrangements for Different Site Conditions
Installing lifting equipment in complex structures requires careful consideration of available space, supporting members and load transfer arrangements. Curved hoists offer different mounting possibilities to accommodate these requirements.
CMAC provides multiple installation arrangements, including:
- Hanger systems: Used to suspend the equipment from suitable supporting structures.
- Jack stands: Provide support for installation in locations requiring an independent mounting arrangement.
- Wall brackets: Allow the hoist structure to be secured to suitable structural walls.
- Custom ceiling mounts: Used where overhead mounting is required and the supporting structure permits installation.
The appropriate mounting method depends on the structural layout, load requirements and available installation space. Proper assessment of the supporting structure is necessary before equipment installation.
Safety Systems for Personnel and Material Lifting
When lifting workers and construction materials at considerable heights, equipment safety and operational control are essential considerations. Hoisting systems must be equipped with suitable protective mechanisms to reduce operational risks.
CMAC’s curved hoists incorporate braking arrangements, overload protection and stable cage configurations. These provisions help maintain controlled lifting operations and protect against operating conditions that may exceed the equipment’s rated capacity.
Regular inspection, maintenance and compliance with applicable safety requirements are also necessary for reliable equipment performance. Operators should follow the manufacturer’s operating instructions and project-specific safety procedures during installation and use.
Applications in Infrastructure and Industrial Projects
The ability to accommodate customised lifting paths makes curved hoists suitable for several construction and maintenance activities. Their use is particularly relevant where the structure’s geometry or site conditions restrict the installation of conventional hoists.
Common application areas include:
- Chimneys: Transportation of workers, tools and materials during chimney construction, inspection and maintenance.
- Cooling towers: Access for construction teams involved in installation, repair and servicing activities.
- Bridges: Movement of personnel and equipment in bridge construction and maintenance projects.
- Tunnels: Support for lifting and transportation requirements in tunnel-related infrastructure work.
- Industrial structures: Vertical access for construction, inspection and maintenance of tall industrial facilities.
These applications demonstrate how specialised hoisting arrangements can support construction activities in locations with challenging access requirements.
Custom Engineering and Project Support
Equipment selection for complex construction projects often requires more than standard product specifications. Contractors need to consider structural conditions, installation arrangements, lifting loads and operating requirements before finalising a hoisting system.
CMAC India Pvt. Ltd. works with project teams to understand these requirements and develop equipment configurations suited to specific site conditions. The company’s engineering and technical teams provide assistance with equipment selection, installation guidance and after-sales support.
Its in-house manufacturing capabilities also support the development of equipment for specialised vertical transportation requirements. This combination of manufacturing and technical assistance helps project teams plan lifting arrangements according to their construction and maintenance needs.
Supporting Specialised Lifting Requirements in Infrastructure Development
The growing scale of infrastructure projects is creating demand for lifting equipment that can operate in structures with different geometries and access limitations. Conventional hoists remain suitable for many construction applications, but specialised systems are required when the lifting route cannot follow a standard straight path.
Curved hoists provide an alternative for such conditions by accommodating customised movement arrangements in chimneys, cooling towers, bridges, tunnels and industrial structures. With its range of vertical transportation equipment, CMAC India Pvt. Ltd. caters to projects requiring specialised lifting configurations for personnel and materials.
CMAC India Pvt Ltd
1-3-183/40/19,2nd Floor,SBI Colony, Gandhinagar, Hyderabad – 500 080 Telangana.
Ph.No: 040 27 54 14 64
Email: sales@cmac.co.in
To know more about the equipment, visit – https://www.cmac.co.in/
