Cranes for Hydropower Stations

Main heavy-duty bridge models of Dafang, with a high-rigidity box-type double girder structure. Suitable for installing and maintaining heavy core equipment (such as turbines, generator stators/rotors, and transformers) in power houses and turbine halls. They can precisely lift and move large-tonnage loads, meeting A4/A5 duty cycle requirements, and are crucial for equipment installation and maintenance.

Turbine Hall & Generator Room Service: Capacities range from 40 to 500+ tons for handling turbine-generator units, stators, rotors, and main transformers. Box-girder construction ensures positioning accuracy. Dual-speed hoists offer fast and precise control. Control systems include variable frequency drives, load cells, and anti-sway technology.

Adopting European lightweight design, they have a compact structure and flexible operation. Suitable for transferring and maintaining light equipment (such as switch cabinets, water pumps) in auxiliary power houses and distribution rooms, saving space and improving small-tonnage operation efficiency.

Switchgear Room & Auxiliary Equipment: Low-headroom European overhead cranes are for circuit breaker maintenance, pump handling, and auxiliary transformer service in height-constrained spaces. Modular hoist design simplifies maintenance. Installation utilizes existing building structure without requiring dedicated elevated runways, reducing civil works cost.

NLX European underhung bridge cranes are suspended without ground tracks, avoiding ground-track dependence and working well in restricted areas. They're suitable for material lifting and equipment maintenance in space-restricted areas like shafts and cable galleries in hydropower stations. They can be customized with a large lifting height for shaft construction in hydropower stations.

Shaft Access & Cable Tunnels: It can operate in vertical shafts, penstock access galleries, and cable tunnels where traditional crane installation is unfeasible. Custom high-lift configurations can reach over 200 meters deep with anti-rotation guides to prevent load swing in confined vertical spaces. Moreover, it has multi-rope redundancy, emergency braking systems, and load-holding devices to prevent uncontrolled descent during power loss.

MH Type Single Beam Gantry Crane, Dafang's core model, has a stable structure and high lifting efficiency. It is suitable for material handling (reinforcing bars, precast concrete components, formwork) during hydropower station construction and light gate operation and auxiliary equipment transfer. It can be customized according to span and lifting height requirements, excelling in construction material handling and light gate operation, and meeting practical needs.

Construction Material Handling: Mobile or semi-fixed configurations (5-32 tons) move construction materials during dam construction, like concrete forms, rebar assemblies, precast components, and construction equipment. Adjustable span suits changing site layouts. They offer rubber-tired or rail-mounted options, diesel or electric power, and rapid deployment for temporary construction.

Heavy-duty hydraulic gantry cranes draw on Dafang's 400-ton heavy-duty gantry crane R & D and manufacturing expertise. They are for lifting core heavy equipment in hydropower stations (e.g., ultra-large-tonnage turbine runners, heavy dam gates) and installing large spillway gate mechanisms. With eight-wheel all-wheel drive and multi-level safety protections, they prevent heavy-load slippage in large-tonnage outdoor operations. They can be customized for large-tonnage, long-span needs. What’s more, these heavy-duty cranes for hydropower stations use strong R & D to customize high-tonnage and long-span equipment, providing reliable support for lifting core components and installing floodgate mechanisms, and ensuring safe outdoor heavy-load operations.

Dam Crest & Spillway Operations: Rail-mounted gantry cranes handle spillway gate installation, maintenance and emergency repairs. A-frame leg geometry ensures lateral stability for tall loads in wind. Eight-wheel drive prevents slippage on inclined runways. Hot-dip galvanized or multi-layer coating systems withstand moisture and temperature changes. Sealed electrical enclosures are rated IP65 minimum for outdoor use.

Shaft-Specific Hydraulic Cranes: Customized with ultra-high lifting heights and anti-rotation hook structures, they transport materials and personnel in hydroelectric power station shafts, with over 20 safety protection measures. These cranes meet the unique demands of surge and cable shafts, ensuring secure transportation.

Surge Chamber & Draft Tube Access: They are designed for 50-500+ meter vertical shafts. Anti-rotation mechanisms  prevent load spinning during vertical travel and wire rope systems with multiple support points minimize dynamic loading. Capacity is typically 5-50 tons for shaft operations.

The Explosion-proof Overhead Crane on the official website is for equipment handling in explosion-proof zones like hydroelectric power station oil storage and electrical distribution rooms, meeting safety standards for flammable environments.

Transformer Vault & Oil Storage Areas: ATEX-compliant (Group IIC where required) or Class I Division 2 rated equipment for hydropower facility areas with flammable liquid or gas presence. All electrical components, like motors, controls, limit switches, meet explosion-proof standards through flamepath design or intrinsic safety circuits. It has CE marking with ATEX Module D (Quality Assurance) for production surveillance.

Spillway Gate-Specific hydraulic Cranes use customized dual-lifting points and a precision positioning system for opening, closing, and maintaining large gates in spillways and intakes. They achieve millimeter-level positioning to prevent gate damage.

Precision Positioning for Large Gates: Dual-hoist configurations balance 50-200-ton gates. Synchronized position control maintains parallel lifting to prevent gate binding or structural damage. Millimeter-level positioning is achieved through encoder feedback and control valves. Battery backup or manual lowering ensures controlled gate operation during power outages for flood control and dam safety.