What are the main application scenarios and load limitations for a Single Girder Grab Overhead Crane?

A single girder grab overhead crane is an economical and space-saving solution designed for light-to-medium duty bulk material handling: Typical Applications: Ideal for handling coal, slag, grain, sand, organic waste, and biomass pellets in small-to-midsize warehouses, agricultural processing plants, and recycling facilities. Capacity & Span Range: Standard lifting capacities range from 2 tons to 10 tons, with spans typically up to 22.5 meters (custom engineered up to 30m). For ultra-heavy loads (>10t) or continuous 24/7 heavy mining duty (A7/A8), a double girder grab crane is recommended.

Which type of grab bucket is best suited for a single girder bridge crane setup?

On a single girder overhead crane, the hoist trolley travels along the bottom flange of the main girder. The grab mechanism options include: Electro-Hydraulic Grab (Most Recommended): Features an integrated electric motor and hydraulic pump directly on the grab frame. It requires only a single lifting hook and power cable reel, offering high digging force and seamless compatibility with standard electric hoists. Electric Motor Clamshell / Orange Peel Grab: Controlled via electric winches, ideal for loose bulk or mid-sized scrap materials. Single-Rope Touch-Down Grab: A mechanical alternative that opens/closes upon resting on the pile, requiring no additional electrical control cables.

How does the single girder design optimize vertical lifting height in low-headroom plants?

For facilities with restricted ceiling heights, Yuntian single beam grab cranes incorporate specialized Low Headroom Hoist Trolleys: Side-Mounted / Low-Headroom Hoist Frame: Elevates the hoist motor and cable drum alongside the main beam rather than underneath it, maximizing the vertical travel distance of the grab bucket. Compact Upper Clearance: Allows the crane to operate close to the roof trusses, maximizing warehouse storage capacity without requiring costly factory elevation modifications.

How is the crane girder reinforced to endure frequent dynamic impacts during grab operations?

Grab operations subject the crane frame to repeated dynamic vibrations and eccentric loads. Our single girder grab EOT cranes feature targeted engineering reinforcements: Heavy-Duty Box Girder Construction: Built with internal longitudinal stiffeners and continuous automated welding to enhance torsional rigidity and fatigue resistance (ISO A5 / FEM 2m duty class). VFD Anti-Sway & Smooth Acceleration: Variable Frequency Drives (VFD) are integrated into both crane traveling and hoist drives to eliminate sudden mechanical jolts, preventing premature trolley rail wear and prolonging structural lifespan.

Single Girder Grab Overhead Crane

Authentication mark:

Capacity:5 Ton – 20 Ton (customizable)

Lifting Height:0-26m (customizable)

Voltage/Hertz:(customizable)

Brand Name: YUNTIAN

Place of Origin: Henan, China

Product manual

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Introduction

Technical Data (General Version)

Application

Features

PRODUCT INTRODUCTION

The LZ Single Girder Grab Overhead Crane is a heavy-duty material handling solution specifically designed for loading, unloading, and transporting loose bulk materials. Equipped with an electric grab bucket, the crane can efficiently handle coal, sand, ore, grain, slag, scrap materials, and other bulk commodities.Compared with conventional hook-type overhead cranes, the LZ grab crane improves loading efficiency by automating the grabbing and releasing process, reducing manual handling requirements and increasing productivity.The crane consists of a bridge girder, travelling mechanism, trolley, electric control system, and grab bucket. With lifting capacities ranging from 5 to 20 tons and working duty up to A6, it is suitable for continuous operation in warehouses, stockyards, workshops, and industrial plants.

TECHNICAL DATA

Parameter	Specification
Crane Model	LZ Single Girder Grab Overhead Crane
Lifting Capacity	5T / 10T / 16T / 20T (customizable)
5T / 10T / 16T / 20T	10.5m – 31.5m (customizable)
Max Lifting Height	18m – 26m (customizable)
Working Duty	A6
Hoisting Speed	40.1 – 48.6 m/min
Trolley Travel Speed	44.6 – 45.7 m/min
Bridge Travel Speed	87.3 – 114.4 m/min
Grab Volume	0.75 – 10 m³
Grab Dead Weight	2,546 – 10,123 kg
Recommended Rail	43kg/m, QU70
Power Supply	(customizable)
Control Mode	Pendant / Remote / Cabin

HOT PRODUCTS

Bulk Storage Warehouses

Scrap Recycling Facilities

Coal Handling Plants

Ore & Mining Processing Plants

Power Generation Facilities

Cement & Building Material Plants

FEATURES

Efficient Bulk Material Handling Designed specifically for loose material loading and unloading operations.

Heavy-Duty A6 Working Class Suitable for high-frequency and intensive operating environments.

Multiple Control Options Pendant Control Wireless Remote Control Operator Cabin Control

Enhanced Safety System Includes: Overload Protection Device Polyurethane Buffer Travel Limit Switch Emergency Stop System Low Voltage Protection Current Overload Protection

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Our products are mainly exported to South America, Southeast Asia,Africa, Russia, Turkey, Middle East countries and so on.