Pumped Storage Series Crane

Pumped storage series cranes are the core equipment of each power plant building. The performance of the crane is directly related to the hoisting safety and installation accuracy of key components such as the rotor, stator, and tailgate opening and closing equipment of the hydroelectric generator unit.

Relying on the technology accumulation of many years of deep cultivation in the field of lifting, Weihua Group has innovatively launched a new generation of special crane series based on the development trend of “high water head, large capacity and high speed” of pumped storage power stations. This series covers all-scenario products such as main plant bridge cranes, tail gate cranes, and GIS room cranes, and fully meets the high-standard lifting needs of the power station during the entire cycle of installation, operation, and maintenance.

Pumped hydro main power plant helicopter

◆ Lifting capacity range: 250t~320t (double machine with two cranes) 450(225+225)t~640(320+320)t (single machine with two trolleys)

◆ Span range: 23m-30.5m

◆ Lifting height: 28m-70m

◆ Job level: A3-A5

Weihua Pumped Storage Main Plant·Double-mounted Crane

Weihua Pumped Storage Main Plant·Single Machine Double Trolley Crane

Faced with the engineering challenges of ultra-high water head, ultra-large capacity, ultra-deep burial depth and ultra-long shaft system of the pumped storage main powerhouse, Weihua’s dual machines were linked and lifted in parallel to complete the hoisting operation accurately and stably throughout the process. It has successfully completed the overall hoisting of the 516-ton rotor. The core technical advantages of this type of product are:

• ◆ Intelligent collaborative hoisting: Two machines are linked together to lift the crane in parallel to achieve load balance, stable turning and precise alignment of overweight components.
• ◆ Millimeter-level positioning control: variable frequency stepless speed regulation combined with PLC control and a special turning spreader to meet precision installation requirements.
• ◆ Flexible adaptation of the main and auxiliary trolleys: the main and auxiliary hooks are synchronized and the spacing is adjustable to adapt to different sizes and center of gravity working conditions.
• ◆ Full-cycle safety protection: Equipped with intelligent monitoring, multiple braking and limit protections to ensure long-term and reliable operation.
• ◆ Strong environmental adaptability: Optimized for extreme working conditions such as high humidity, large temperature differences, and continuous operation, the performance is stable and durable.

Tailgate room crane

◆ Lifting weight range: 50t~100t

◆ Span range: 7m-11m

◆ Lifting height: 25m-40m

◆ Job level: A3-A5

Weihua tail gate crane

The tailgate chamber crane is mainly used for the installation, inspection and daily maintenance and lifting of the tailwater accident gate and its hydraulic hoist. Its core advantage lies in flexible and efficient operations in narrow spaces. The specific performance is as follows:

• ◆ Compact structural design: The fuselage size has been optimized to fit into the narrow space of the tailgate chamber, with strong passability and flexible operation.
• ◆ High-grade anti-corrosion coating: specially designed for high humidity and corrosion-prone environments, significantly improving the durability of the equipment.
• ◆ PLC control + variable frequency stepless speed regulation: smooth and accurate operation, small start and stop impact, and safer and more reliable hoisting.
• ◆ Air operation + remote control dual mode: supports both ground and remote control operation modes, responds quickly, and can be flexibly switched according to on-site needs.

GIS room crane

◆ Lifting weight range: 10t~16t

◆ Span range: 13m-22m

◆ Lifting height: 16m-30m

◆ Job level: A3-A5

Weihua GIS room crane

The GIS room special crane is specially designed for the installation, maintenance and daily maintenance and lifting of gas insulated switchgear, circuit breakers and other electrical facilities. It can achieve flexible, safe and precise operations in a limited space. The technical advantages are as follows:

• ◆ Compact and lightweight design: The structure is exquisite, adapting to the space constraints of the GIS room and reducing the load pressure on the building structure.
• ◆ Dual-mode flexible operation: supports air operation and remote control, responds quickly, and meets precise positioning needs in small spaces.
• ◆ Multiple safety guarantees: Equipped with braking protection and multiple limit systems to ensure the safety and reliability of the entire lifting process of electrical equipment.

Special crane for shaft

◆ Lifting capacity range: 10t+3t~20t+3t (conventional model),  10t+3t~25t (ultra-high lift model)

◆ Lifting height: 190m-700m

◆ Job level: A3-A6

Weihua ultra-high lift shaft special crane

The special shaft gantry crane is the core equipment for the construction of deep shafts in pumped storage power stations, and is responsible for key tasks such as shaft excavation, steel pipe lifting, equipment transportation, and safe personnel lifting.

This equipment pioneered the “double parallel folding drum + traction type constant deflection angle arrangement” technology, successfully breaking through the technical bottleneck of multi-layer orderly winding of steel wire ropes at an ultra-deep lift of 650 meters; deeply integrating 5G communications, UWB positioning and AI technology to achieve centimeter-level positioning and intelligent collaborative control of underground dynamics; for dual working conditions of people and cargo, innovatively designed “three-level braking + dual rope redundancy” multiple safety protection systems and cage life support devices, with safety standards reaching elevator level.

In the Zhejiang Songyang pumped storage power station project, Henan Weihua customized the world’s first set of intelligent special equipment for hoisting and transportation of a 700-meter ultra-deep shaft, covering the entire shaft construction process. It has played an irreplaceable role in key links such as excavation and slag removal from the main shaft of the upper pressure regulating shaft, installation and dismantling of the complete machine in the shaft tunnel boring machine, accurate hoisting of pressure steel pipes and fully automatic detachment of deep shafts, and efficient and safe transportation of construction personnel in the shaft. It has significantly improved the efficiency and safety of ultra-deep and narrow shaft operations, and demonstrated Weihua’s outstanding technical strength in the field of ultra-large lifting equipment.