OVERHEAD CRANE

HOT PRODUCTS

Single-Girder Bridge Grab Crane

Double Girder Overhead Crane

Double-girder Bridge Casting Crane

Explosion-proof Double-girder Bridge Crane

QZ Grab overhead Crane

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:

3 Phase 380V 50hz

Working Class:

A6, A7, A8

Get A Free Quote

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] Coal Yards of Thermal Power Plants – The grab scoops coal from stockpiles and precisely drops it into receiving hoppers of conveyor belts. Anti-spill design reduces coal leakage and fuel loss. Heavy-duty structure handles continuous, frequent operation cycles.

[2] Port Bulk Cargo Terminals – The grab picks up ore, sand, gravel, or coal from ship holds and transfers to shore-side stockyards, or loads materials from stockyards onto ships. High grab speeds reduce vessel port time. Flexible operation adapts to different vessel types and hatch sizes.

[3] Chemical Plants – The grab picks up fertilizers, industrial salt, soda ash, and other chemical materials, transferring them to dissolving tanks or feed hoppers. Anti-corrosion coating is available for corrosive materials. Sealed design reduces dust emission and minimizes human contact with hazardous chemicals.

[4] Recycling Centers and Waste Treatment Plants – The grab picks up scrap steel, industrial waste, construction debris, and irregular materials, transferring them to crushers or balers. Heavy-duty grab design with wear-resistant blades extends service life. Rugged structure handles high-density materials and withstands impact conditions.

[5] Raw Material Yards of Steel Mills – The grab handles iron ore, limestone, coke, and other bulk materials, feeding them into conveyor systems or charging hoppers. One crane covers multiple stockpiles, reducing equipment investment.

ADVANTAGES

[1] Dedicated Grab Design – Optimized grab mechanism provides 30%-40% higher efficiency than hook-mounted grab attachments.

[2] High Duty Cycle – Designed for continuous operation with duty class A6-A8, suitable for intensive 24/7 bulk handling.

[3] Durable Construction – Reinforced girders and heavy-duty wheels specifically engineered for shock loads and grab impact.

[4] Specialized Control – Anti-sway and anti-spill functions for precise grab operation at any height.

[5] Extended Wire Rope Life – Grab-specific rope winding system reduces wear, extending rope life by 2-3 times.

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.