Dongqi 3t Garbage Grab Crane 12m Lift Transfer Low Price Kazakhstan

The garbage grab overhead crane from Dongqi Crane is a heavy-duty material handling system designed specifically for the waste management and bulk material sectors. It is a type of overhead crane equipped with a grab bucket—a device that opens and closes to pick up and release materials—making it the primary lifting equipment for loading, unloading, mixing, feeding, and weighing of garbage and other scattered bulk materials.

This crane is typically built with a double girder structure and a heavy-duty working class, reflecting the continuous, high-cycle nature of waste handling operations. The rated lifting capacity of Dongqi‘s grab overhead crane range is 5–25 tons (including the dead weight of the grab bucket), suitable for power stations, storage yards, workshops, ports, waste disposal facilities, and other industries handling coal, ore, sand, gravel, scrap metal, and municipal solid waste.

The garbage grab overhead crane is particularly critical in waste-to-energy and incineration plants, where it is mounted above the waste storage pit and is responsible for garbage feeding, conveying, mixing, fetching, and weighing to ensure stable and continuous operation of the incineration line .

Why Garbage Handling Demands a Purpose-Built Crane

Municipal solid waste is not a uniform material. It varies in density, moisture content, shape, and composition from load to load. A crane that handles coal efficiently may struggle with the tangling, irregular profile of domestic refuse. The garbage grab overhead crane addresses this through:

• Grab bucket selection matched to the material — orange-peel grabs for irregular, bulky waste and scrap; clamshell grabs for free-flowing materials .

• Heavy-duty A6 working class — designed for frequent, high-cycle operation in dusty, corrosive, and sometimes high-temperature environments .

• Continuous duty capability — grab cranes can work around the clock, supporting the 24/7 feed rhythm required by waste incineration plants .

• Automation-ready control — automatic, semi-automatic, and manual modes allow the crane to integrate with plant-wide waste management systems .

Technical Specifications

Capacity note. The rated lifting capacity includes the weight of the grab bucket itself. Dongqi confirms the effective payload against the selected grab volume and material density during configuration.

Design and Construction

Double girder heavy-duty structure

The crane uses a double box-type welded girder bridge frame, providing the stiffness and stability required for frequent grab cycling under heavy dynamic loads. The bridge frame carries the trolley, grab, and payload while resisting the shock and vibration inherent in grab bucket operation .

Grab bucket options

Dongqi supplies grab buckets matched to the material being handled:

• Orange-peel grab — 4–6 curved tines forming a confined space when closed. Suitable for garbage, scrap metal, irregular lump materials, and construction waste. The wide gripping range and flexible jaw design make it effective for materials that do not flow uniformly .

• Clamshell grab — two symmetrical shells with high filling factor and efficient discharge. Suitable for coal, sand, gravel, grain, and other free-flowing bulk materials .

The grab bucket is the core working component. Its opening and closing mechanism is driven by wire rope or hydraulic/electro-hydraulic power, depending on the configuration.

Corrosion and dust protection

Waste handling environments expose the crane to moisture, corrosive leachate, dust, and abrasive particles. Dongqi applies anti-corrosion treatment to key components, with motors and reducers enclosed to prevent dust intrusion . This is not an aesthetic finish; it is a service-life requirement in waste pits and transfer stations.

Laser-assisted positioning

The garbage grab overhead crane is equipped with laser-assisted height measurement, supporting accurate grab positioning above the waste pile. This is particularly valuable in automatic and semi-automatic modes, where the crane must locate the material surface without operator visual contact.

Safety and Protection

The crane is supplied with a comprehensive protection set for continuous waste handling:

• Overload protection device — prevents lifting beyond rated capacity, with alarm.

• Limit switches for lifting and cross travel — safe lifting and traveling at extremities.

• Low voltage protection — prevents operation on inadequate supply.

• Phase sequence protection — protects motors from incorrect phase connection.

• Emergency stop device — immediate power isolation at the operator interface.

• Warning indicators — flashing lights and audible warning sound during operation.

• Double speed mechanism — provides better working performance in terms of precision, allowing slow-speed approach for accurate grab placement .

Control Modes

The garbage grab overhead crane supports multiple control modes to match operator positioning and plant automation level:

• Automatic control — the crane performs grab-raise-travel-release cycles based on programmed coordinates and height data, suitable for stable, high-throughput waste feeding.

• Semi-automatic control — the operator controls grab collection, then the crane automatically transports and positions the load at the selected hopper or discharge point.

• Manual control — full operator control via pendant or remote, used during commissioning, maintenance, and irregular handling tasks.

• Remote control — wireless operation for flexible positioning and reduced operator exposure to the waste pit environment .

Applications

The garbage grab overhead crane is primarily applied to bulk material handling, with particular focus on waste management:

Waste incineration and waste-to-energy plants

• Garbage feeding to the incinerator, maintaining a stable and continuous fuel input.

• Garbage mixing and stirring to homogenize moisture content and calorific value before feeding.

• Weighing of bulk materials before or after lifting, supporting mass balance and reporting .

Other bulk material handling

• Loading and unloading of coal, ore, sand, gravel, scrap metal, and other scattered objects in power plants, freight yards, workshops, wharves, and storage facilities.

• Waste transfer stations and recycling centers — grabbing, handling, stacking, and sorting of municipal and industrial waste.

• Ports and cement plants — handling of raw materials and bulk cargo .

Selection Guidance

Dongqi reviews material density, grab volume, cycle frequency, span, lifting height, and environmental conditions together rather than quoting a crane on capacity alone. The grab bucket selection is confirmed against the actual waste composition and moisture content.

Manufacturer: Dongqi Crane

Dongqi Crane designs and manufactures the garbage grab overhead crane as a QZ-type heavy-duty waste handling system, integrating the double girder structure, grab trolley, hydraulic or mechanical grab, and control system as a matched lifting solution. Dongqi‘s grab crane range is applied across power stations, storage yards, steel mill smelting workshops, ports, cement plants, and waste recycling stations, with customized designs available for specific waste compositions, plant layouts, and automation requirements .

Request a Configuration

To receive a matched garbage grab overhead crane proposal from Dongqi Crane, please provide:

1. Capacity required (t, including grab weight; standard 5–25 t)

2. Span (m, centre-to-centre of runway rails)

3. Lifting height (m, hook/grab travel required)

4. Material type and density (municipal waste, coal, scrap, sand, etc.)

5. Grab volume required (m³ per cycle) or cycle throughput target (t/h)

6. Working environment (indoor waste pit, outdoor yard, temperature, dust/corrosion level)

7. Duty cycle (hours per day, shifts)

8. Control mode (automatic, semi-automatic, manual; pendant/remote/cabin)

9. Whether weighing before or after lifting is required