OVERHEAD CRANE

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Authentication mark:

This crane is mainly used in power plants, port terminals, chemical plants, recycling centers, and bulk material handling facilities.

Capacity:

1 t – 20 t customizable

Lifting Height:

6 m – 30 m (customizable based on building clearance)

Span:

7.5 m – 31.5 m customizable

Voltage/Hertz:

customizable

Working Class:

A6, A7, A8 customizable

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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

The QZ Double Girder Grab Overhead Crane is heavy-duty material handling equipment specifically designed with a customized grab bucket instead of a standard hook. Driven by a specialized double-drum hoisting mechanism that controls the lifting and opening/closing of the grab, it provides efficient and continuous operations for handling loose, bulk materials.

APPLICATION SCENARIO

1. Power Plants (Coal Handling)
Used for unloading coal from trains, barges, or storage yards, and for feeding coal into boilers or stockpiles. Automated stacking and reclaiming improve fuel supply reliability.

2. Metallurgy & Steel
Handles scrap, slag, limestone, coke, and other raw materials. Supports furnace charging and scrap handling with precise grab control and multi-crane coordination.

3. Waste-to-Energy & Solid Waste Treatment
A core equipment for waste incineration plants, transfer stations, and landfills. Performs feeding, mixing, moving, and weighing of municipal solid waste in the storage pit.

ADVANTAGES

1. Fully Automated Operation
The grab opens, closes, grabs, lifts, travels, and discharges without manual intervention, reducing labor costs and physical strain.

2. High Handling Efficiency
Short cycle times and high throughput compared with manual shoveling or excavator operation.

3. Precise Grabbing, Less Spillage & Dust
The grab encloses material during lifting and travel, minimizing spillage and dust emission for better environmental compliance.

STRUCTURAL DIAGRAM AND PARAMETER TABLE

Parameter	Specification
Working Class	A6, A7, A8
Capacity	1 t – 20 t
Span	7.5 m – 31.5 m
Lifting Height	6 m – 30 m
Grab Closing Speed	20 – 40 m/min
Grab Opening Speed	20 – 40 m/min
Trolley Travelling Speed	35 – 45 m/min
Crane Travelling Speed	20 – 50 m/min
Grab Capacity	0.5 m³ – 5 m³
Control Method	Cabin control / Remote radio control / Pendant control
Power Supply	380V / 50Hz / 3-phase
Temperature	-20°C to +50°C
Grab Type	Motor grab / Four-rope grab / Hydraulic grab
Girder Type	Double girder – reinforced box-section for grab shock loads

NUCOLLEN CERTIFICATE

Nukollen Possesses A Wide Range Of Complete Certification Documents Including Those For Ships, Port Equipment Factories, Etc. If You Need Them, Please Feel Free To Request The Detailed Certification Files From Us.