The manufacturing, assembly, and revision of hydraulic/mechanical lifting equipment cover the design and implementation of systems used for the safe, controlled, and uninterrupted lifting, lowering, and positioning of heavy loads in accordance with engineering principles. In this context, hydraulic cylinders, mechanical drive systems, lifting mechanisms, control, and safety components are projected, manufactured, and assembled on-site in line with the working conditions of the facility, intended use, and operational needs.
Systems that experience performance loss over time or do not meet current safety and operational standards are restructured through revision and modernization works. Adana-based Enermak Çelik Enerji Makine ve Mühendislik explained the frequently asked questions regarding the manufacturing, assembly, and revision processes of hydraulic and mechanical lifting equipment.
What are Hydraulic Lifting Systems? How Do They Work?
Hydraulic and mechanical lifting equipment are structures that enable the lifting, lowering, and precise positioning of gates, valves, trash rack cleaning machines, and other hydromechanical equipment used in hydroelectric power plants (HEPP), dams, and similar industrial facilities. In these systems, movement is carried out through hydraulic cylinders integrated into the equipment to be lifted and the hydraulic power unit that feeds these cylinders.
Hydraulic lifting systems are widely preferred, especially in hydroelectric power plants and dam facilities, due to their balanced operation under high loads, precise positioning, and stepless movement capabilities. The main components of hydraulic lifting systems are:
- Hydraulic cylinders (lift the load and provide controlled movement),
- Hydraulic power unit (pump, oil tank, valve groups),
- Electrical control panel (provides control and safety management of the system),
- PLC and SCADA (Supervisory Control and Data Acquisition) control systems,
- Pressure and position sensors (monitor the correct operation of the system and increase safety),
- Piping, hoses, and fasteners.
What Are the Advantages of Hydraulic Lifting Systems?
The most important advantages of hydraulic systems are high lifting capacity, balanced movement capability, and remote controllability. Thanks to PLC and SCADA integration, the status of gates and valves can be monitored instantly from the plant control room and safely commanded. This feature significantly increases operational safety and intervention speed, especially in facilities with difficult access or harsh environmental conditions. Although the initial investment cost is higher compared to mechanical lifting systems, provided that regular maintenance and periodic checks are ensured, hydraulic lifting equipment offers a long operational life, low failure rate, and high system reliability.
What is Mechanical Lifting Equipment? Which Parts Does It Consist Of?
Mechanical lifting equipment is systems in which gates, valves, and similar hydromechanical equipment are moved mechanically via an electric motor, gearbox, and vertical lifting shaft. The movement in these systems is based on the principle of converting rotary motion into linear motion. They are preferred in many projects due to their relatively simple structures and lower initial investment costs. Mechanical lifting systems generally consist of the following main components:
- Electric motor (provides movement energy),
- Gearbox (adjusts speed and torque),
- Worm gear or similar reduction mechanisms (convert rotary motion to vertical motion),
- Vertical lifting shaft (carries the load vertically),
- Couplings and bearings (balance drive transmission and carry axial loads),
- Electrical panel and control system (control the system and ensure safety).
Why is Proper Lubrication and Maintenance Necessary in Gearboxes?
Inside the gearboxes, there is gear oil with the appropriate viscosity to ensure the healthy operation of the gear mechanism. This oil is critical in terms of reducing friction, preventing wear, and extending the life of the gear system by dissipating heat. It is necessary to check the oil periodically and replace it when it loses its properties. Otherwise, overheating, jamming, or serious mechanical damage may occur in the gearbox.
Although mechanical lifting systems are simpler by nature compared to hydraulic systems, the risk of failure can increase when regular maintenance is not performed. In addition, since precise positioning and remote control capability under high loads are limited, they should be preferred by taking into account the area of use and operating conditions.
What Are the Design Stages of Lifting Equipment?
The design of hydraulic and mechanical lifting equipment is carried out within a systematic engineering process, taking into account the characteristics of the load to be lifted, stroke distance, opening-closing time, operating frequency, and environmental conditions. In the first stage of the design process, system requirements are determined, and operational scenarios are defined. In this context, during the design phase;
- Maximum static and dynamic loads are calculated,
- Appropriate safety coefficients are determined,
- Emergencies and failure scenarios are evaluated,
- Manual operation, backup drive, or alternative operational needs are analyzed.
In accordance with the calculations made; cylinder diameter, working pressure, and pump capacity in hydraulic systems; and motor power, gear ratios, and shaft diameters in mechanical systems are determined. All these selections are made to ensure that the system operates safely, has a long life, and is suitable for operating conditions.
What are Assembly, Revision, and Modernization Works?
The assembly of lifting equipment is a process that requires high precision in terms of axis misalignments, alignment errors, and connection tolerances. Errors made during the assembly phase can cause early failures and performance losses in the system, no matter how high quality the equipment used is. Within the scope of revision and modernization works;
- Renewal of worn or expired mechanical parts,
- Replacement of hydraulic cylinders, hoses, and sealing elements,
- Making old-type command and control systems PLC and SCADA compatible,
- Operations such as improving safety, locking, and security systems in accordance with current standards are carried out.
Thanks to these works, while the operational life of the existing facility is extended, the safety, operational continuity, and overall efficiency of the system are significantly increased.
Why is Maintenance Important?
Regular maintenance of hydraulic and mechanical lifting equipment;
- Ensures the reduction of unplanned downtimes,
- Minimizes the risk of failure,
- Reduces operating and repair costs,
- Increases personnel and facility safety.
Therefore, lifting equipment should be considered as an integral part of periodic maintenance plans in hydroelectric power plants and dam facilities and should be implemented systematically.
How Are the Prices of Hydraulic / Mechanical Lifting Equipment Determined?
The prices of hydraulic and mechanical lifting equipment are determined depending on lifting capacity, stroke distance, system type (hydraulic or mechanical), quality of the material to be used, automation level (PLC-SCADA integration), assembly conditions, and revision requirements. In addition, the environmental conditions of the facility, safety requirements, and special design demands also have a direct impact on the cost.
Enermak Signature in Hydraulic and Mechanical Lifting Systems
Enermak carries out all processes from the design to the manufacturing, assembly, revision, and modernization of hydraulic and mechanical lifting equipment in accordance with engineering principles. With its high quality standards, field experience, and reliable solutions; it offers long-lasting, safe, and efficient lifting systems for hydroelectric power plants, dams, and industrial facilities.
